/*!
 * @twinverse/camera-controls
 * https://github.com/undefined
 * (c) 2017 @yomotsu
 * Released under the MIT License.
 */
'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var three = require('three');

// see https://developer.mozilla.org/en-US/docs/Web/API/MouseEvent/buttons#value
const MOUSE_BUTTON = {
    LEFT: 1,
    RIGHT: 2,
    MIDDLE: 4,
};
const ACTION = Object.freeze({
    NONE: 0,
    ROTATE: 1,
    TRUCK: 2,
    OFFSET: 4,
    DOLLY: 8,
    ZOOM: 16,
    TOUCH_ROTATE: 32,
    TOUCH_TRUCK: 64,
    TOUCH_OFFSET: 128,
    TOUCH_DOLLY: 256,
    TOUCH_ZOOM: 512,
    TOUCH_DOLLY_TRUCK: 1024,
    TOUCH_DOLLY_OFFSET: 2048,
    TOUCH_DOLLY_ROTATE: 4096,
    TOUCH_ZOOM_TRUCK: 8192,
    TOUCH_ZOOM_OFFSET: 16384,
    TOUCH_ZOOM_ROTATE: 32768,
    FORWARD_ROTATE: 65536,
    TOUCH_FORWARD_ROTATE: 131072,
    ELEVATE: 262144,
    TOUCH_ElEVATE: 524288,
});
const DOLLY_DIRECTION = {
    NONE: 0,
    IN: 1,
    OUT: -1,
};
function isPerspectiveCamera(camera) {
    return camera.isPerspectiveCamera;
}
function isOrthographicCamera(camera) {
    return camera.isOrthographicCamera;
}

const PI_2 = Math.PI * 2;
const PI_HALF = Math.PI / 2;
const CLICK_THRESHOLD_MS = 300;
const CLICK_THRESHOLD_DISTANCE_SQUARED_PX = 100; // 10px

const EPSILON = 1e-5;
const DEG2RAD = Math.PI / 180;
function clamp(value, min, max) {
    return Math.max(min, Math.min(max, value));
}
function approxZero(number, error = EPSILON) {
    return Math.abs(number) < error;
}
function approxEquals(a, b, error = EPSILON) {
    return approxZero(a - b, error);
}
function roundToStep(value, step) {
    return Math.round(value / step) * step;
}
function infinityToMaxNumber(value) {
    if (isFinite(value))
        return value;
    if (value < 0)
        return -Number.MAX_VALUE;
    return Number.MAX_VALUE;
}
function maxNumberToInfinity(value) {
    if (Math.abs(value) < Number.MAX_VALUE)
        return value;
    return value * Infinity;
}
// https://docs.unity3d.com/ScriptReference/Mathf.SmoothDamp.html
// https://github.com/Unity-Technologies/UnityCsReference/blob/a2bdfe9b3c4cd4476f44bf52f848063bfaf7b6b9/Runtime/Export/Math/Mathf.cs#L308
function smoothDamp(current, target, currentVelocityRef, smoothTime, maxSpeed = Infinity, deltaTime) {
    // Based on Game Programming Gems 4 Chapter 1.10
    smoothTime = Math.max(0.0001, smoothTime);
    const omega = 2 / smoothTime;
    const x = omega * deltaTime;
    const exp = 1 / (1 + x + 0.48 * x * x + 0.235 * x * x * x);
    let change = current - target;
    const originalTo = target;
    // Clamp maximum speed
    const maxChange = maxSpeed * smoothTime;
    change = clamp(change, -maxChange, maxChange);
    target = current - change;
    const temp = (currentVelocityRef.value + omega * change) * deltaTime;
    currentVelocityRef.value = (currentVelocityRef.value - omega * temp) * exp;
    let output = target + (change + temp) * exp;
    // Prevent overshooting
    if (originalTo - current > 0.0 === output > originalTo) {
        output = originalTo;
        currentVelocityRef.value = (output - originalTo) / deltaTime;
    }
    return output;
}
// https://docs.unity3d.com/ScriptReference/Vector3.SmoothDamp.html
// https://github.com/Unity-Technologies/UnityCsReference/blob/a2bdfe9b3c4cd4476f44bf52f848063bfaf7b6b9/Runtime/Export/Math/Vector3.cs#L97
function smoothDampVec3(current, target, currentVelocityRef, smoothTime, maxSpeed = Infinity, deltaTime, out) {
    // Based on Game Programming Gems 4 Chapter 1.10
    smoothTime = Math.max(0.0001, smoothTime);
    const omega = 2 / smoothTime;
    const x = omega * deltaTime;
    const exp = 1 / (1 + x + 0.48 * x * x + 0.235 * x * x * x);
    let targetX = target.x;
    let targetY = target.y;
    let targetZ = target.z;
    let changeX = current.x - targetX;
    let changeY = current.y - targetY;
    let changeZ = current.z - targetZ;
    const originalToX = targetX;
    const originalToY = targetY;
    const originalToZ = targetZ;
    // Clamp maximum speed
    const maxChange = maxSpeed * smoothTime;
    const maxChangeSq = maxChange * maxChange;
    const magnitudeSq = changeX * changeX + changeY * changeY + changeZ * changeZ;
    if (magnitudeSq > maxChangeSq) {
        const magnitude = Math.sqrt(magnitudeSq);
        changeX = changeX / magnitude * maxChange;
        changeY = changeY / magnitude * maxChange;
        changeZ = changeZ / magnitude * maxChange;
    }
    targetX = current.x - changeX;
    targetY = current.y - changeY;
    targetZ = current.z - changeZ;
    const tempX = (currentVelocityRef.x + omega * changeX) * deltaTime;
    const tempY = (currentVelocityRef.y + omega * changeY) * deltaTime;
    const tempZ = (currentVelocityRef.z + omega * changeZ) * deltaTime;
    currentVelocityRef.x = (currentVelocityRef.x - omega * tempX) * exp;
    currentVelocityRef.y = (currentVelocityRef.y - omega * tempY) * exp;
    currentVelocityRef.z = (currentVelocityRef.z - omega * tempZ) * exp;
    out.x = targetX + (changeX + tempX) * exp;
    out.y = targetY + (changeY + tempY) * exp;
    out.z = targetZ + (changeZ + tempZ) * exp;
    // Prevent overshooting
    const origMinusCurrentX = originalToX - current.x;
    const origMinusCurrentY = originalToY - current.y;
    const origMinusCurrentZ = originalToZ - current.z;
    const outMinusOrigX = out.x - originalToX;
    const outMinusOrigY = out.y - originalToY;
    const outMinusOrigZ = out.z - originalToZ;
    if (origMinusCurrentX * outMinusOrigX + origMinusCurrentY * outMinusOrigY + origMinusCurrentZ * outMinusOrigZ > 0) {
        out.x = originalToX;
        out.y = originalToY;
        out.z = originalToZ;
        currentVelocityRef.x = (out.x - originalToX) / deltaTime;
        currentVelocityRef.y = (out.y - originalToY) / deltaTime;
        currentVelocityRef.z = (out.z - originalToZ) / deltaTime;
    }
    return out;
}

function extractClientCoordFromEvent(pointers, out) {
    out.set(0, 0);
    pointers.forEach((pointer) => {
        out.x += pointer.clientX;
        out.y += pointer.clientY;
    });
    out.x /= pointers.length;
    out.y /= pointers.length;
}

function notSupportedInOrthographicCamera(camera, message) {
    if (isOrthographicCamera(camera)) {
        console.warn(`${message} is not supported in OrthographicCamera`);
        return true;
    }
    return false;
}

class EventDispatcher {
    constructor() {
        this._listeners = {};
    }
    /**
     * Adds the specified event listener.
     * @param type event name
     * @param listener handler function
     * @category Methods
     */
    addEventListener(type, listener) {
        const listeners = this._listeners;
        if (listeners[type] === undefined)
            listeners[type] = [];
        if (listeners[type].indexOf(listener) === -1)
            listeners[type].push(listener);
    }
    /**
     * Presence of the specified event listener.
     * @param type event name
     * @param listener handler function
     * @category Methods
     */
    hasEventListener(type, listener) {
        const listeners = this._listeners;
        return listeners[type] !== undefined && listeners[type].indexOf(listener) !== -1;
    }
    /**
     * Removes the specified event listener
     * @param type event name
     * @param listener handler function
     * @category Methods
     */
    removeEventListener(type, listener) {
        const listeners = this._listeners;
        const listenerArray = listeners[type];
        if (listenerArray !== undefined) {
            const index = listenerArray.indexOf(listener);
            if (index !== -1)
                listenerArray.splice(index, 1);
        }
    }
    /**
     * Removes all event listeners
     * @param type event name
     * @category Methods
     */
    removeAllEventListeners(type) {
        if (!type) {
            this._listeners = {};
            return;
        }
        if (Array.isArray(this._listeners[type]))
            this._listeners[type].length = 0;
    }
    /**
     * Fire an event type.
     * @param event DispatcherEvent
     * @category Methods
     */
    dispatchEvent(event) {
        const listeners = this._listeners;
        const listenerArray = listeners[event.type];
        if (listenerArray !== undefined) {
            event.target = this;
            const array = listenerArray.slice(0);
            for (let i = 0, l = array.length; i < l; i++) {
                array[i].call(this, event);
            }
        }
    }
}

var _a;
const VERSION = '0.1.7'; // will be replaced with `version` in package.json during the build process.
const TOUCH_DOLLY_FACTOR = 1 / 8;
const isMac = /Mac/.test((_a = globalThis === null || globalThis === void 0 ? void 0 : globalThis.navigator) === null || _a === void 0 ? void 0 : _a.platform);
let THREE;
// let _ORIGIN: _THREE.Vector3;
let _AXIS_Y;
let _AXIS_Z;
let _v2;
let _v3A;
let _v3B;
let _v3C;
let _cameraDirection;
let _xColumn;
let _yColumn;
let _zColumn;
let _deltaTarget;
let _deltaOffset;
let _sphericalA;
let _sphericalB;
let _box3A;
let _box3B;
let _sphere;
let _quaternionA;
let _quaternionB;
// let _rotationMatrix: _THREE.Matrix4;
let _raycaster;
class CameraControls extends EventDispatcher {
    /**
     * Injects THREE as the dependency. You can then proceed to use CameraControls.
     *
     * e.g
     * ```javascript
     * CameraControls.install( { THREE: THREE } );
     * ```
     *
     * Note: If you do not wish to use enter three.js to reduce file size(tree-shaking for example), make a subset to install.
     *
     * ```js
     * import {
     * 	Vector2,
     * 	Vector3,
     * 	Vector4,
     * 	Quaternion,
     * 	Matrix4,
     * 	Spherical,
     * 	Box3,
     * 	Sphere,
     * 	Raycaster,
     * 	MathUtils,
     * } from 'three';
     *
     * const subsetOfTHREE = {
     * 	Vector2   : Vector2,
     * 	Vector3   : Vector3,
     * 	Vector4   : Vector4,
     * 	Quaternion: Quaternion,
     * 	Matrix4   : Matrix4,
     * 	Spherical : Spherical,
     * 	Box3      : Box3,
     * 	Sphere    : Sphere,
     * 	Raycaster : Raycaster,
     * };

     * CameraControls.install( { THREE: subsetOfTHREE } );
     * ```
     * @category Statics
     */
    static install(libs) {
        THREE = libs.THREE;
        // _ORIGIN = Object.freeze( new THREE.Vector3( 0, 0, 0 ) );
        _AXIS_Y = Object.freeze(new THREE.Vector3(0, 1, 0));
        _AXIS_Z = Object.freeze(new THREE.Vector3(0, 0, 1));
        _v2 = new THREE.Vector2();
        _v3A = new THREE.Vector3();
        _v3B = new THREE.Vector3();
        _v3C = new THREE.Vector3();
        _cameraDirection = new THREE.Vector3();
        _xColumn = new THREE.Vector3();
        _yColumn = new THREE.Vector3();
        _zColumn = new THREE.Vector3();
        _deltaTarget = new THREE.Vector3();
        _deltaOffset = new THREE.Vector3();
        _sphericalA = new THREE.Spherical();
        _sphericalB = new THREE.Spherical();
        _box3A = new THREE.Box3();
        _box3B = new THREE.Box3();
        _sphere = new THREE.Sphere();
        _quaternionA = new THREE.Quaternion();
        _quaternionB = new THREE.Quaternion();
        // _rotationMatrix = new THREE.Matrix4();
        _raycaster = new THREE.Raycaster();
    }
    /**
     * list all ACTIONs
     * @category Statics
     */
    static get ACTION() {
        return ACTION;
    }
    /**
     * Creates a `CameraControls` instance.
     *
     * Note:
     * You **must install** three.js before using camera-controls. see [#install](#install)
     * Not doing so will lead to runtime errors (`undefined` references to THREE).
     *
     * e.g.
     * ```
     * CameraControls.install( { THREE } );
     * const cameraControls = new CameraControls( camera, domElement );
     * ```
     *
     * @param camera A `THREE.PerspectiveCamera` or `THREE.OrthographicCamera` to be controlled.
     * @param domElement A `HTMLElement` for the draggable area, usually `renderer.domElement`.
     * @category Constructor
     */
    constructor(camera, domElement) {
        super();
        /**
         * Minimum vertical angle in radians.
         * The angle has to be between `0` and `.maxPolarAngle` inclusive.
         * The default value is `0`.
         *
         * e.g.
         * ```
         * cameraControls.maxPolarAngle = 0;
         * ```
         * @category Properties
         */
        this.minPolarAngle = 0; // radians
        /**
         * Maximum vertical angle in radians.
         * The angle has to be between `.maxPolarAngle` and `Math.PI` inclusive.
         * The default value is `Math.PI`.
         *
         * e.g.
         * ```
         * cameraControls.maxPolarAngle = Math.PI;
         * ```
         * @category Properties
         */
        this.maxPolarAngle = Math.PI; // radians
        /**
         * Minimum horizontal angle in radians.
         * The angle has to be less than `.maxAzimuthAngle`.
         * The default value is `- Infinity`.
         *
         * e.g.
         * ```
         * cameraControls.minAzimuthAngle = - Infinity;
         * ```
         * @category Properties
         */
        this.minAzimuthAngle = -Infinity; // radians
        /**
         * Maximum horizontal angle in radians.
         * The angle has to be greater than `.minAzimuthAngle`.
         * The default value is `Infinity`.
         *
         * e.g.
         * ```
         * cameraControls.maxAzimuthAngle = Infinity;
         * ```
         * @category Properties
         */
        this.maxAzimuthAngle = Infinity; // radians
        // How far you can dolly in and out ( PerspectiveCamera only )
        /**
         * Minimum distance for dolly. The value must be higher than `0`. Default is `Number.EPSILON`.
         * PerspectiveCamera only.
         * @category Properties
         */
        this.minDistance = Number.EPSILON;
        /**
         * Maximum distance for dolly. The value must be higher than `minDistance`. Default is `Infinity`.
         * PerspectiveCamera only.
         * @category Properties
         */
        this.maxDistance = Infinity;
        /**
         * `true` to enable Infinity Dolly for wheel and pinch. Use this with `minDistance` and `maxDistance`
         * If the Dolly distance is less (or over) than the `minDistance` (or `maxDistance`), `infinityDolly` will keep the distance and pushes the target position instead.
         * @category Properties
         */
        this.infinityDolly = false;
        /**
         * Minimum camera zoom.
         * @category Properties
         */
        this.minZoom = 0.01;
        /**
         * Maximum camera zoom.
         * @category Properties
         */
        this.maxZoom = Infinity;
        /**
         * Approximate time in seconds to reach the target. A smaller value will reach the target faster.
         * @category Properties
         */
        this.smoothTime = 0.25;
        /**
         * the smoothTime while dragging
         * @category Properties
         */
        this.draggingSmoothTime = 0.125;
        /**
         * Max transition speed in unit-per-seconds
         * @category Properties
         */
        this.maxSpeed = Infinity;
        /**
         * Speed of azimuth (horizontal) rotation.
         * @category Properties
         */
        this.azimuthRotateSpeed = 1.0;
        /**
         * Speed of polar (vertical) rotation.
         * @category Properties
         */
        this.polarRotateSpeed = 1.0;
        /**
         * Speed of mouse-wheel dollying.
         * @category Properties
         */
        this.dollySpeed = 1.0;
        /**
         * `true` to invert direction when dollying or zooming via drag
         * @category Properties
         */
        this.dollyDragInverted = false;
        /**
         * Speed of drag for truck and pedestal.
         * @category Properties
         */
        this.truckSpeed = 2.0;
        /**
         * `true` to enable Dolly-in to the mouse cursor coords.
         * @category Properties
         */
        this.dollyToCursor = false;
        /**
         * @category Properties
         */
        this.dragToOffset = false;
        /**
         * The same as `.screenSpacePanning` in three.js's OrbitControls.
         * @category Properties
         */
        this.verticalDragToForward = false;
        /**
         * Friction ratio of the boundary.
         * @category Properties
         */
        this.boundaryFriction = 0.0;
        /**
         * Controls how soon the `rest` event fires as the camera slows.
         * @category Properties
         */
        this.restThreshold = 0.01;
        /**
         * An array of Meshes to collide with camera.
         * Be aware colliderMeshes may decrease performance. The collision test uses 4 raycasters from the camera since the near plane has 4 corners.
         * @category Properties
         */
        this.colliderMeshes = [];
        this.enableCollisions = true;
        this.dragStartPosition = new THREE.Vector2();
        /**
         * Force cancel user dragging.
         * @category Methods
         */
        // cancel will be overwritten in the constructor.
        this.cancel = () => { };
        this._enabled = true;
        this._state = ACTION.NONE;
        this._viewport = null;
        this._changedDolly = 0;
        this._changedZoom = 0;
        this._hasRested = true;
        this._boundaryEnclosesCamera = false;
        this._needsUpdate = true;
        this._updatedLastTime = false;
        this._elementRect = new DOMRect();
        this._isDragging = false;
        this._dragNeedsUpdate = true;
        this._activePointers = [];
        this._lockedPointer = null;
        this._interactiveArea = new DOMRect(0, 0, 1, 1);
        // Use draggingSmoothTime over smoothTime while true.
        // set automatically true on user-dragging start.
        // set automatically false on programmable methods call.
        this._isUserControllingRotate = false;
        this._isUserControllingDolly = false;
        this._isUserControllingTruck = false;
        this._isUserControllingOffset = false;
        this._isUserControllingZoom = false;
        this._lastDollyDirection = DOLLY_DIRECTION.NONE;
        // velocities for smoothDamp
        this._thetaVelocity = { value: 0 };
        this._phiVelocity = { value: 0 };
        this._radiusVelocity = { value: 0 };
        this._targetVelocity = new THREE.Vector3();
        this._focalOffsetVelocity = new THREE.Vector3();
        this._zoomVelocity = { value: 0 };
        this._forwardDelta = 0;
        this._truckInternal = (deltaX, deltaY, dragToOffset) => {
            let truckX;
            let pedestalY;
            if (isPerspectiveCamera(this._camera)) {
                const offset = _v3A.copy(this._camera.position).sub(this._target);
                // half of the fov is center to top of screen
                const fov = this._camera.getEffectiveFOV() * DEG2RAD;
                const targetDistance = offset.length() * Math.tan(fov * 0.5);
                truckX = (this.truckSpeed * deltaX * targetDistance / this._elementRect.height);
                pedestalY = (this.truckSpeed * deltaY * targetDistance / this._elementRect.height);
            }
            else if (isOrthographicCamera(this._camera)) {
                const camera = this._camera;
                truckX = deltaX * (camera.right - camera.left) / camera.zoom / this._elementRect.width;
                pedestalY = deltaY * (camera.top - camera.bottom) / camera.zoom / this._elementRect.height;
            }
            else {
                return;
            }
            if (this.verticalDragToForward) {
                dragToOffset ?
                    this.setFocalOffset(this._focalOffsetEnd.x + truckX, this._focalOffsetEnd.y, this._focalOffsetEnd.z, true) :
                    this.truck(truckX, 0, true);
                this.forward(-pedestalY, true);
            }
            else {
                dragToOffset ?
                    this.setFocalOffset(this._focalOffsetEnd.x + truckX, this._focalOffsetEnd.y + pedestalY, this._focalOffsetEnd.z, true) :
                    this.truck(truckX, pedestalY, true);
            }
        };
        this._rotateInternal = (deltaX, deltaY) => {
            const theta = PI_2 * this.azimuthRotateSpeed * deltaX / this._elementRect.height; // divide by *height* to refer the resolution
            const phi = PI_2 * this.polarRotateSpeed * deltaY / this._elementRect.height;
            this.rotate(theta, phi, true);
        };
        this._forwardRotateInternal = (deltaX, deltaY) => {
            let pedestalY;
            if (isPerspectiveCamera(this._camera)) {
                const offset = _v3A.copy(this._camera.position).sub(this._target);
                // half of the fov is center to top of screen
                const fov = this._camera.getEffectiveFOV() * DEG2RAD;
                const targetDistance = offset.length() * Math.tan(fov * 0.5);
                // truckX    = ( this.truckSpeed * deltaX * targetDistance / this._elementRect.height );
                pedestalY = (this.truckSpeed * deltaY * targetDistance / this._elementRect.height);
            }
            else if (isOrthographicCamera(this._camera)) {
                const camera = this._camera;
                // truckX    = deltaX * ( camera.right - camera.left   ) / camera.zoom / this._elementRect.width;
                pedestalY = deltaY * (camera.top - camera.bottom) / camera.zoom / this._elementRect.height;
            }
            else {
                return;
            }
            if (this.verticalDragToForward)
                this.forwardView(pedestalY, true);
            else
                this.forward(pedestalY, true);
            const theta = PI_2 * Math.abs(this.azimuthRotateSpeed) * deltaX / this._elementRect.height; // divide by *height* to refer the resolution
            this.rotate(theta, 0, true);
        };
        this._elevateInternal = (delta) => {
            let pedestalY;
            // const pedestalY = Math.pow( 0.95, - delta * this.truckSpeed );
            if (isPerspectiveCamera(this._camera)) {
                const offset = _v3A.copy(this._camera.position).sub(this._target);
                // half of the fov is center to top of screen
                const fov = this._camera.getEffectiveFOV() * DEG2RAD;
                const targetDistance = offset.length() * Math.tan(fov * 0.5);
                // truckX    = ( this.truckSpeed * deltaX * targetDistance / this._elementRect.height );
                pedestalY = (this.truckSpeed * delta * targetDistance / this._elementRect.height);
            }
            else if (isOrthographicCamera(this._camera)) {
                const camera = this._camera;
                // truckX    = deltaX * ( camera.right - camera.left   ) / camera.zoom / this._elementRect.width;
                pedestalY = delta * (camera.top - camera.bottom) / camera.zoom / this._elementRect.height;
            }
            else {
                return;
            }
            this.elevate(pedestalY, true);
            return;
        };
        this._dollyInternal = (delta, x, y) => {
            const dollyScale = Math.pow(0.95, -delta * this.dollySpeed);
            const lastDistance = this._sphericalEnd.radius;
            const distance = this._sphericalEnd.radius * dollyScale;
            const clampedDistance = clamp(distance, this.minDistance, this.maxDistance);
            const overflowedDistance = clampedDistance - distance;
            if (this.infinityDolly && this.dollyToCursor) {
                this._dollyToNoClamp(distance, true);
            }
            else if (this.infinityDolly && !this.dollyToCursor) {
                this.dollyInFixed(overflowedDistance, true);
                this._dollyToNoClamp(clampedDistance, true);
            }
            else {
                this._dollyToNoClamp(clampedDistance, true);
            }
            if (this.dollyToCursor) {
                this._changedDolly += (this.infinityDolly ? distance : clampedDistance) - lastDistance;
                this._dollyControlCoord.set(x, y);
            }
            this._lastDollyDirection = Math.sign(-delta);
        };
        this._zoomInternal = (delta, x, y) => {
            const zoomScale = Math.pow(0.95, delta * this.dollySpeed);
            const lastZoom = this._zoom;
            const zoom = this._zoom * zoomScale;
            // for both PerspectiveCamera and OrthographicCamera
            this.zoomTo(zoom, true);
            if (this.dollyToCursor) {
                this._changedZoom += zoom - lastZoom;
                this._dollyControlCoord.set(x, y);
            }
        };
        // Check if the user has installed THREE
        if (typeof THREE === 'undefined') {
            console.error('camera-controls: `THREE` is undefined. You must first run `CameraControls.install( { THREE: THREE } )`. Check the docs for further information.');
        }
        this._camera = camera;
        this._yAxisUpSpace = new THREE.Quaternion().setFromUnitVectors(this._camera.up, _AXIS_Y);
        this._yAxisUpSpaceInverse = this._yAxisUpSpace.clone().invert();
        this._state = ACTION.NONE;
        // the location
        this._target = new THREE.Vector3();
        this._targetEnd = this._target.clone();
        this._focalOffset = new THREE.Vector3();
        this._focalOffsetEnd = this._focalOffset.clone();
        // rotation
        this._spherical = new THREE.Spherical().setFromVector3(_v3A.copy(this._camera.position).applyQuaternion(this._yAxisUpSpace));
        this._sphericalEnd = this._spherical.clone();
        this._lastDistance = this._spherical.radius;
        this._zoom = this._camera.zoom;
        this._zoomEnd = this._zoom;
        this._lastZoom = this._zoom;
        // collisionTest uses nearPlane.s
        this._nearPlaneCorners = [
            new THREE.Vector3(),
            new THREE.Vector3(),
            new THREE.Vector3(),
            new THREE.Vector3(),
        ];
        this._updateNearPlaneCorners();
        // Target cannot move outside of this box
        this._boundary = new THREE.Box3(new THREE.Vector3(-Infinity, -Infinity, -Infinity), new THREE.Vector3(Infinity, Infinity, Infinity));
        // reset
        this._cameraUp0 = this._camera.up.clone();
        this._target0 = this._target.clone();
        this._position0 = this._camera.position.clone();
        this._zoom0 = this._zoom;
        this._focalOffset0 = this._focalOffset.clone();
        this._dollyControlCoord = new THREE.Vector2();
        // configs
        this.mouseButtons = {
            left: ACTION.ROTATE,
            middle: ACTION.DOLLY,
            right: ACTION.TRUCK,
            wheel: isPerspectiveCamera(this._camera) ? ACTION.DOLLY :
                isOrthographicCamera(this._camera) ? ACTION.ZOOM :
                    ACTION.NONE,
            leftright: ACTION.ELEVATE
        };
        this.touches = {
            one: ACTION.TOUCH_ROTATE,
            two: isPerspectiveCamera(this._camera) ? ACTION.TOUCH_DOLLY_TRUCK :
                isOrthographicCamera(this._camera) ? ACTION.TOUCH_ZOOM_TRUCK :
                    ACTION.NONE,
            three: ACTION.TOUCH_TRUCK,
            doubletap: ACTION.TOUCH_FORWARD_ROTATE
        };
        // const dragStartPosition = new THREE.Vector2() as _THREE.Vector2;
        const lastDragPosition = new THREE.Vector2();
        const dollyStart = new THREE.Vector2();
        let lastPointerUpTimestamp = -1;
        let lastPointerDownTimestamp = -1;
        let wasDoubleTapTap = false;
        const onPointerDown = (event) => {
            if (!this._enabled || !this._domElement)
                return;
            if (this._interactiveArea.left !== 0 ||
                this._interactiveArea.top !== 0 ||
                this._interactiveArea.width !== 1 ||
                this._interactiveArea.height !== 1) {
                const elRect = this._domElement.getBoundingClientRect();
                const left = event.clientX / elRect.width;
                const top = event.clientY / elRect.height;
                // check if the interactiveArea contains the drag start position.
                if (left < this._interactiveArea.left ||
                    left > this._interactiveArea.right ||
                    top < this._interactiveArea.top ||
                    top > this._interactiveArea.bottom)
                    return;
            }
            lastPointerDownTimestamp = event.timeStamp;
            // Don't call `event.preventDefault()` on the pointerdown event
            // to keep receiving pointermove evens outside dragging iframe
            // https://taye.me/blog/tips/2015/11/16/mouse-drag-outside-iframe/
            const mouseButton = event.pointerType !== 'mouse' ? null :
                (event.buttons & MOUSE_BUTTON.LEFT) === MOUSE_BUTTON.LEFT ? MOUSE_BUTTON.LEFT :
                    (event.buttons & MOUSE_BUTTON.MIDDLE) === MOUSE_BUTTON.MIDDLE ? MOUSE_BUTTON.MIDDLE :
                        (event.buttons & MOUSE_BUTTON.RIGHT) === MOUSE_BUTTON.RIGHT ? MOUSE_BUTTON.RIGHT :
                            null;
            if (mouseButton !== null) {
                const zombiePointer = this._findPointerByMouseButton(mouseButton);
                zombiePointer && this._disposePointer(zombiePointer);
            }
            if ((event.buttons & MOUSE_BUTTON.LEFT) === MOUSE_BUTTON.LEFT && this._lockedPointer)
                return;
            if (event.pointerType === 'touch') {
                if (lastPointerUpTimestamp !== -1 && event.timeStamp - lastPointerUpTimestamp < 300) {
                    wasDoubleTapTap = true;
                }
            }
            const pointer = {
                pointerId: event.pointerId,
                clientX: event.clientX,
                clientY: event.clientY,
                deltaX: 0,
                deltaY: 0,
                mouseButton,
            };
            this._activePointers.push(pointer);
            // eslint-disable-next-line no-undef
            this._domElement.ownerDocument.removeEventListener('pointermove', onPointerMove, { passive: false });
            this._domElement.ownerDocument.removeEventListener('pointerup', onPointerUp);
            this._domElement.ownerDocument.addEventListener('pointermove', onPointerMove, { passive: false });
            this._domElement.ownerDocument.addEventListener('pointerup', onPointerUp);
            this._isDragging = true;
            startDragging(event);
        };
        const onPointerMove = (event) => {
            if (event.cancelable)
                event.preventDefault();
            const pointerId = event.pointerId;
            const pointer = this._lockedPointer || this._findPointerById(pointerId);
            if (!pointer)
                return;
            pointer.clientX = event.clientX;
            pointer.clientY = event.clientY;
            pointer.deltaX = event.movementX;
            pointer.deltaY = event.movementY;
            this._state = 0;
            if (event.pointerType === 'touch') {
                switch (this._activePointers.length) {
                    case 1:
                        this._state = this.touches.one;
                        if (wasDoubleTapTap)
                            this._state = this.touches.doubletap;
                        break;
                    case 2:
                        this._state = this.touches.two;
                        break;
                    case 3:
                        this._state = this.touches.three;
                        break;
                }
            }
            else {
                if ((!this._isDragging && this._lockedPointer) ||
                    this._isDragging && (event.buttons & MOUSE_BUTTON.LEFT) === MOUSE_BUTTON.LEFT) {
                    this._state = this._state | this.mouseButtons.left;
                }
                if (this._isDragging && (event.buttons & MOUSE_BUTTON.RIGHT) === MOUSE_BUTTON.RIGHT) {
                    this._state = this._state | this.mouseButtons.right;
                }
                if (this._isDragging &&
                    (event.buttons & MOUSE_BUTTON.LEFT) === MOUSE_BUTTON.LEFT &&
                    (event.buttons & MOUSE_BUTTON.RIGHT) === MOUSE_BUTTON.RIGHT) {
                    this._state = this.mouseButtons.leftright;
                }
                if (this._isDragging && (event.buttons & MOUSE_BUTTON.MIDDLE) === MOUSE_BUTTON.MIDDLE) {
                    this._state = this._state | this.mouseButtons.middle;
                }
            }
            dragging();
        };
        const onPointerUp = (event) => {
            const pointer = this._findPointerById(event.pointerId);
            if (pointer && pointer === this._lockedPointer)
                return;
            pointer && this._disposePointer(pointer);
            lastPointerUpTimestamp = performance.now();
            _v2.set(event.clientX, event.clientY).sub(this.dragStartPosition);
            if (event.pointerType === 'touch') {
                switch (this._activePointers.length) {
                    case 0:
                        this._state = ACTION.NONE;
                        if (
                        // the pointer was down less then CLICK_THRESHOLD_MS ago
                        (lastPointerUpTimestamp - lastPointerDownTimestamp) < CLICK_THRESHOLD_MS &&
                            // check if the pointer moved less than CLICK_THRESHOLD_DISTANCE_SQUARED_PX pixels
                            _v2.lengthSq() < CLICK_THRESHOLD_DISTANCE_SQUARED_PX) {
                            this.dispatchEvent({ type: 'click', pointer: 'touch' });
                        }
                        break;
                    case 1:
                        this._state = this.touches.one;
                        break;
                    case 2:
                        this._state = this.touches.two;
                        break;
                    case 3:
                        this._state = this.touches.three;
                        break;
                }
                wasDoubleTapTap = false;
            }
            else {
                this._state = ACTION.NONE;
                if (
                // left button only must be released
                (event.button === three.MOUSE.LEFT) &&
                    // the pointer was down less then CLICK_THRESHOLD_MS ago
                    (lastPointerUpTimestamp - lastPointerDownTimestamp) < CLICK_THRESHOLD_MS &&
                    // check if the pointer moved less than CLICK_THRESHOLD_DISTANCE_SQUARED_PX pixels
                    _v2.lengthSq() < CLICK_THRESHOLD_DISTANCE_SQUARED_PX) {
                    this.dispatchEvent({ type: 'click', pointer: 'touch' });
                }
            }
            endDragging();
        };
        let lastScrollTimeStamp = -1;
        const onMouseWheel = (event) => {
            if (!this._domElement)
                return;
            if (!this._enabled || this.mouseButtons.wheel === ACTION.NONE)
                return;
            if (this._interactiveArea.left !== 0 ||
                this._interactiveArea.top !== 0 ||
                this._interactiveArea.width !== 1 ||
                this._interactiveArea.height !== 1) {
                const elRect = this._domElement.getBoundingClientRect();
                const left = event.clientX / elRect.width;
                const top = event.clientY / elRect.height;
                // check if the interactiveArea contains the drag start position.
                if (left < this._interactiveArea.left ||
                    left > this._interactiveArea.right ||
                    top < this._interactiveArea.top ||
                    top > this._interactiveArea.bottom)
                    return;
            }
            event.preventDefault();
            if (this.dollyToCursor ||
                this.mouseButtons.wheel === ACTION.ROTATE ||
                this.mouseButtons.wheel === ACTION.TRUCK) {
                const now = performance.now();
                // only need to fire this at scroll start.
                if (lastScrollTimeStamp - now < 1000)
                    this._getClientRect(this._elementRect);
                lastScrollTimeStamp = now;
            }
            // Ref: https://github.com/cedricpinson/osgjs/blob/00e5a7e9d9206c06fdde0436e1d62ab7cb5ce853/sources/osgViewer/input/source/InputSourceMouse.js#L89-L103
            const deltaYFactor = isMac ? -1 : -3;
            const delta = (event.deltaMode === 1) ? event.deltaY / deltaYFactor : event.deltaY / (deltaYFactor * 10);
            const x = this.dollyToCursor ? (event.clientX - this._elementRect.x) / this._elementRect.width * 2 - 1 : 0;
            const y = this.dollyToCursor ? (event.clientY - this._elementRect.y) / this._elementRect.height * -2 + 1 : 0;
            switch (this.mouseButtons.wheel) {
                case ACTION.ROTATE: {
                    this._rotateInternal(event.deltaX, event.deltaY);
                    this._isUserControllingRotate = true;
                    break;
                }
                case ACTION.TRUCK: {
                    this._truckInternal(event.deltaX, event.deltaY, false);
                    this._isUserControllingTruck = true;
                    break;
                }
                case ACTION.FORWARD_ROTATE: {
                    this._forwardRotateInternal(0, -event.deltaY);
                    this._isUserControllingTruck = true;
                    break;
                }
                case ACTION.ELEVATE: {
                    this._elevateInternal(event.deltaY);
                    this._isUserControllingTruck = true;
                    break;
                }
                case ACTION.OFFSET: {
                    this._truckInternal(event.deltaX, event.deltaY, true);
                    this._isUserControllingOffset = true;
                    break;
                }
                case ACTION.DOLLY: {
                    this._dollyInternal(-delta, x, y);
                    this._isUserControllingDolly = true;
                    break;
                }
                case ACTION.ZOOM: {
                    this._zoomInternal(-delta, x, y);
                    this._isUserControllingZoom = true;
                    break;
                }
            }
            this.dispatchEvent({ type: 'control' });
        };
        const onContextMenu = (event) => {
            if (!this._domElement || !this._enabled)
                return;
            // contextmenu event is fired right after pointerdown
            // remove attached handlers and active pointer, if interrupted by contextmenu.
            if (this.mouseButtons.right === CameraControls.ACTION.NONE) {
                const pointerId = event instanceof PointerEvent ? event.pointerId : 0;
                const pointer = this._findPointerById(pointerId);
                pointer && this._disposePointer(pointer);
                // eslint-disable-next-line no-undef
                this._domElement.ownerDocument.removeEventListener('pointermove', onPointerMove, { passive: false });
                this._domElement.ownerDocument.removeEventListener('pointerup', onPointerUp);
                return;
            }
            event.preventDefault();
        };
        const startDragging = (event) => {
            if (!this._enabled)
                return;
            extractClientCoordFromEvent(this._activePointers, _v2);
            this._getClientRect(this._elementRect);
            this.dragStartPosition.copy(_v2);
            lastDragPosition.copy(_v2);
            const isMultiTouch = this._activePointers.length >= 2;
            if (isMultiTouch) {
                // 2 finger pinch
                const dx = _v2.x - this._activePointers[1].clientX;
                const dy = _v2.y - this._activePointers[1].clientY;
                const distance = Math.sqrt(dx * dx + dy * dy);
                dollyStart.set(0, distance);
                // center coords of 2 finger truck
                const x = (this._activePointers[0].clientX + this._activePointers[1].clientX) * 0.5;
                const y = (this._activePointers[0].clientY + this._activePointers[1].clientY) * 0.5;
                lastDragPosition.set(x, y);
            }
            this._state = 0;
            if (!event) {
                if (this._lockedPointer)
                    this._state = this._state | this.mouseButtons.left;
            }
            else if ('pointerType' in event && event.pointerType === 'touch') {
                switch (this._activePointers.length) {
                    case 1:
                        this._state = this.touches.one;
                        break;
                    case 2:
                        this._state = this.touches.two;
                        break;
                    case 3:
                        this._state = this.touches.three;
                        break;
                }
            }
            else {
                if (!this._lockedPointer && (event.buttons & MOUSE_BUTTON.LEFT) === MOUSE_BUTTON.LEFT) {
                    this._state = this._state | this.mouseButtons.left;
                }
                if ((event.buttons & MOUSE_BUTTON.MIDDLE) === MOUSE_BUTTON.MIDDLE) {
                    this._state = this._state | this.mouseButtons.middle;
                }
                if ((event.buttons & MOUSE_BUTTON.RIGHT) === MOUSE_BUTTON.RIGHT) {
                    this._state = this._state | this.mouseButtons.right;
                }
            }
            // stop current movement on drag start
            if ((this._state & ACTION.ROTATE) === ACTION.ROTATE ||
                (this._state & ACTION.TOUCH_ROTATE) === ACTION.TOUCH_ROTATE ||
                (this._state & ACTION.TOUCH_DOLLY_ROTATE) === ACTION.TOUCH_DOLLY_ROTATE ||
                (this._state & ACTION.TOUCH_ZOOM_ROTATE) === ACTION.TOUCH_ZOOM_ROTATE ||
                (this._state & ACTION.FORWARD_ROTATE) === ACTION.FORWARD_ROTATE ||
                (this._state & ACTION.TOUCH_FORWARD_ROTATE) === ACTION.TOUCH_FORWARD_ROTATE) {
                this._sphericalEnd.theta = this._spherical.theta;
                this._sphericalEnd.phi = this._spherical.phi;
                this._thetaVelocity.value = 0;
                this._phiVelocity.value = 0;
            }
            if ((this._state & ACTION.TRUCK) === ACTION.TRUCK ||
                (this._state & ACTION.TOUCH_TRUCK) === ACTION.TOUCH_TRUCK ||
                (this._state & ACTION.TOUCH_DOLLY_TRUCK) === ACTION.TOUCH_DOLLY_TRUCK ||
                (this._state & ACTION.TOUCH_ZOOM_TRUCK) === ACTION.TOUCH_ZOOM_TRUCK ||
                (this._state & ACTION.FORWARD_ROTATE) === ACTION.FORWARD_ROTATE ||
                (this._state & ACTION.TOUCH_FORWARD_ROTATE) === ACTION.TOUCH_FORWARD_ROTATE ||
                (this._state & ACTION.ELEVATE) === ACTION.ELEVATE ||
                (this._state & ACTION.TOUCH_ElEVATE) === ACTION.TOUCH_ElEVATE) {
                this._targetEnd.copy(this._target);
                this._targetVelocity.set(0, 0, 0);
            }
            if ((this._state & ACTION.DOLLY) === ACTION.DOLLY ||
                (this._state & ACTION.TOUCH_DOLLY) === ACTION.TOUCH_DOLLY ||
                (this._state & ACTION.TOUCH_DOLLY_TRUCK) === ACTION.TOUCH_DOLLY_TRUCK ||
                (this._state & ACTION.TOUCH_DOLLY_OFFSET) === ACTION.TOUCH_DOLLY_OFFSET ||
                (this._state & ACTION.TOUCH_DOLLY_ROTATE) === ACTION.TOUCH_DOLLY_ROTATE) {
                this._sphericalEnd.radius = this._spherical.radius;
                this._radiusVelocity.value = 0;
            }
            if ((this._state & ACTION.ZOOM) === ACTION.ZOOM ||
                (this._state & ACTION.TOUCH_ZOOM) === ACTION.TOUCH_ZOOM ||
                (this._state & ACTION.TOUCH_ZOOM_TRUCK) === ACTION.TOUCH_ZOOM_TRUCK ||
                (this._state & ACTION.TOUCH_ZOOM_OFFSET) === ACTION.TOUCH_ZOOM_OFFSET ||
                (this._state & ACTION.TOUCH_ZOOM_ROTATE) === ACTION.TOUCH_ZOOM_ROTATE) {
                this._zoomEnd = this._zoom;
                this._zoomVelocity.value = 0;
            }
            if ((this._state & ACTION.OFFSET) === ACTION.OFFSET ||
                (this._state & ACTION.TOUCH_OFFSET) === ACTION.TOUCH_OFFSET ||
                (this._state & ACTION.TOUCH_DOLLY_OFFSET) === ACTION.TOUCH_DOLLY_OFFSET ||
                (this._state & ACTION.TOUCH_ZOOM_OFFSET) === ACTION.TOUCH_ZOOM_OFFSET) {
                this._focalOffsetEnd.copy(this._focalOffset);
                this._focalOffsetVelocity.set(0, 0, 0);
            }
            this.dispatchEvent({ type: 'controlstart' });
        };
        const dragging = () => {
            if (!this._enabled || !this._dragNeedsUpdate)
                return;
            this._dragNeedsUpdate = false;
            extractClientCoordFromEvent(this._activePointers, _v2);
            // When pointer lock is enabled clientX, clientY, screenX, and screenY remain 0.
            // If pointer lock is enabled, use the Delta directory, and assume active-pointer is not multiple.
            const isPointerLockActive = this._domElement && this._domElement.ownerDocument.pointerLockElement === this._domElement;
            const lockedPointer = isPointerLockActive ? this._lockedPointer || this._activePointers[0] : null;
            const deltaX = lockedPointer ? -lockedPointer.deltaX : lastDragPosition.x - _v2.x;
            const deltaY = lockedPointer ? -lockedPointer.deltaY : lastDragPosition.y - _v2.y;
            lastDragPosition.copy(_v2);
            if ((this._state & ACTION.ROTATE) === ACTION.ROTATE ||
                (this._state & ACTION.TOUCH_ROTATE) === ACTION.TOUCH_ROTATE ||
                (this._state & ACTION.TOUCH_DOLLY_ROTATE) === ACTION.TOUCH_DOLLY_ROTATE ||
                (this._state & ACTION.TOUCH_ZOOM_ROTATE) === ACTION.TOUCH_ZOOM_ROTATE) {
                this._rotateInternal(deltaX, deltaY);
                this._isUserControllingRotate = true;
            }
            if ((this._state & ACTION.DOLLY) === ACTION.DOLLY ||
                (this._state & ACTION.ZOOM) === ACTION.ZOOM) {
                const dollyX = this.dollyToCursor ? (this.dragStartPosition.x - this._elementRect.x) / this._elementRect.width * 2 - 1 : 0;
                const dollyY = this.dollyToCursor ? (this.dragStartPosition.y - this._elementRect.y) / this._elementRect.height * -2 + 1 : 0;
                const dollyDirection = this.dollyDragInverted ? -1 : 1;
                if ((this._state & ACTION.DOLLY) === ACTION.DOLLY) {
                    this._dollyInternal(dollyDirection * deltaY * TOUCH_DOLLY_FACTOR, dollyX, dollyY);
                    this._isUserControllingDolly = true;
                }
                else {
                    this._zoomInternal(dollyDirection * deltaY * TOUCH_DOLLY_FACTOR, dollyX, dollyY);
                    this._isUserControllingZoom = true;
                }
            }
            if ((this._state & ACTION.TOUCH_DOLLY) === ACTION.TOUCH_DOLLY ||
                (this._state & ACTION.TOUCH_ZOOM) === ACTION.TOUCH_ZOOM ||
                (this._state & ACTION.TOUCH_DOLLY_TRUCK) === ACTION.TOUCH_DOLLY_TRUCK ||
                (this._state & ACTION.TOUCH_ZOOM_TRUCK) === ACTION.TOUCH_ZOOM_TRUCK ||
                (this._state & ACTION.TOUCH_DOLLY_OFFSET) === ACTION.TOUCH_DOLLY_OFFSET ||
                (this._state & ACTION.TOUCH_ZOOM_OFFSET) === ACTION.TOUCH_ZOOM_OFFSET ||
                (this._state & ACTION.TOUCH_DOLLY_ROTATE) === ACTION.TOUCH_DOLLY_ROTATE ||
                (this._state & ACTION.TOUCH_ZOOM_ROTATE) === ACTION.TOUCH_ZOOM_ROTATE) {
                const dx = _v2.x - this._activePointers[1].clientX;
                const dy = _v2.y - this._activePointers[1].clientY;
                const distance = Math.sqrt(dx * dx + dy * dy);
                const dollyDelta = dollyStart.y - distance;
                dollyStart.set(0, distance);
                const dollyX = this.dollyToCursor ? (lastDragPosition.x - this._elementRect.x) / this._elementRect.width * 2 - 1 : 0;
                const dollyY = this.dollyToCursor ? (lastDragPosition.y - this._elementRect.y) / this._elementRect.height * -2 + 1 : 0;
                if ((this._state & ACTION.TOUCH_DOLLY) === ACTION.TOUCH_DOLLY ||
                    (this._state & ACTION.TOUCH_DOLLY_ROTATE) === ACTION.TOUCH_DOLLY_ROTATE ||
                    (this._state & ACTION.TOUCH_DOLLY_TRUCK) === ACTION.TOUCH_DOLLY_TRUCK ||
                    (this._state & ACTION.TOUCH_DOLLY_OFFSET) === ACTION.TOUCH_DOLLY_OFFSET) {
                    this._dollyInternal(dollyDelta * TOUCH_DOLLY_FACTOR, dollyX, dollyY);
                    this._isUserControllingDolly = true;
                }
                else {
                    this._zoomInternal(dollyDelta * TOUCH_DOLLY_FACTOR, dollyX, dollyY);
                    this._isUserControllingZoom = true;
                }
            }
            if ((this._state & ACTION.TRUCK) === ACTION.TRUCK ||
                (this._state & ACTION.TOUCH_TRUCK) === ACTION.TOUCH_TRUCK ||
                (this._state & ACTION.TOUCH_DOLLY_TRUCK) === ACTION.TOUCH_DOLLY_TRUCK ||
                (this._state & ACTION.TOUCH_ZOOM_TRUCK) === ACTION.TOUCH_ZOOM_TRUCK) {
                this._truckInternal(deltaX, deltaY, false);
                this._isUserControllingTruck = true;
            }
            if ((this._state & ACTION.OFFSET) === ACTION.OFFSET ||
                (this._state & ACTION.TOUCH_OFFSET) === ACTION.TOUCH_OFFSET ||
                (this._state & ACTION.TOUCH_DOLLY_OFFSET) === ACTION.TOUCH_DOLLY_OFFSET ||
                (this._state & ACTION.TOUCH_ZOOM_OFFSET) === ACTION.TOUCH_ZOOM_OFFSET) {
                this._truckInternal(deltaX, deltaY, true);
                this._isUserControllingOffset = true;
            }
            if ((this._state & ACTION.FORWARD_ROTATE) === ACTION.FORWARD_ROTATE ||
                (this._state & ACTION.TOUCH_FORWARD_ROTATE) === ACTION.TOUCH_FORWARD_ROTATE) {
                this._forwardRotateInternal(deltaX, deltaY);
                this._isUserControllingOffset = true;
            }
            if ((this._state & ACTION.ELEVATE) === ACTION.ELEVATE ||
                (this._state & ACTION.TOUCH_ElEVATE) === ACTION.TOUCH_ElEVATE) {
                this._elevateInternal(deltaY);
                this._isUserControllingOffset = true;
            }
            this.dispatchEvent({ type: 'control' });
        };
        const endDragging = () => {
            extractClientCoordFromEvent(this._activePointers, _v2);
            lastDragPosition.copy(_v2);
            this._dragNeedsUpdate = false;
            if (this._activePointers.length === 0 ||
                (this._activePointers.length === 1 && this._activePointers[0] === this._lockedPointer)) {
                this._isDragging = false;
            }
            if (this._activePointers.length === 0 && this._domElement) {
                // eslint-disable-next-line no-undef
                this._domElement.ownerDocument.removeEventListener('pointermove', onPointerMove, { passive: false });
                this._domElement.ownerDocument.removeEventListener('pointerup', onPointerUp);
                this.dispatchEvent({ type: 'controlend' });
            }
        };
        this.lockPointer = () => {
            if (!this._enabled || !this._domElement)
                return;
            this.cancel();
            // Element.requestPointerLock is allowed to happen without any pointer active - create a faux one for compatibility with controls
            this._lockedPointer = {
                pointerId: -1,
                clientX: 0,
                clientY: 0,
                deltaX: 0,
                deltaY: 0,
                mouseButton: null,
            };
            this._activePointers.push(this._lockedPointer);
            // eslint-disable-next-line no-undef
            this._domElement.ownerDocument.removeEventListener('pointermove', onPointerMove, { passive: false });
            this._domElement.ownerDocument.removeEventListener('pointerup', onPointerUp);
            this._domElement.requestPointerLock();
            this._domElement.ownerDocument.addEventListener('pointerlockchange', onPointerLockChange);
            this._domElement.ownerDocument.addEventListener('pointerlockerror', onPointerLockError);
            this._domElement.ownerDocument.addEventListener('pointermove', onPointerMove, { passive: false });
            this._domElement.ownerDocument.addEventListener('pointerup', onPointerUp);
            startDragging();
        };
        this.unlockPointer = () => {
            var _a, _b, _c;
            if (this._lockedPointer !== null) {
                this._disposePointer(this._lockedPointer);
                this._lockedPointer = null;
            }
            (_a = this._domElement) === null || _a === void 0 ? void 0 : _a.ownerDocument.exitPointerLock();
            (_b = this._domElement) === null || _b === void 0 ? void 0 : _b.ownerDocument.removeEventListener('pointerlockchange', onPointerLockChange);
            (_c = this._domElement) === null || _c === void 0 ? void 0 : _c.ownerDocument.removeEventListener('pointerlockerror', onPointerLockError);
            this.cancel();
        };
        const onPointerLockChange = () => {
            const isPointerLockActive = this._domElement && this._domElement.ownerDocument.pointerLockElement === this._domElement;
            if (!isPointerLockActive)
                this.unlockPointer();
        };
        const onPointerLockError = () => {
            this.unlockPointer();
        };
        this._addAllEventListeners = (domElement) => {
            this._domElement = domElement;
            this._domElement.style.touchAction = 'none';
            this._domElement.style.userSelect = 'none';
            this._domElement.style.webkitUserSelect = 'none';
            this._domElement.addEventListener('pointerdown', onPointerDown);
            this._domElement.addEventListener('pointercancel', onPointerUp);
            this._domElement.addEventListener('wheel', onMouseWheel, { passive: false });
            this._domElement.addEventListener('contextmenu', onContextMenu);
        };
        this._removeAllEventListeners = () => {
            if (!this._domElement)
                return;
            this._domElement.style.touchAction = '';
            this._domElement.style.userSelect = '';
            this._domElement.style.webkitUserSelect = '';
            this._domElement.removeEventListener('pointerdown', onPointerDown);
            this._domElement.removeEventListener('pointercancel', onPointerUp);
            // https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/removeEventListener#matching_event_listeners_for_removal
            // > it's probably wise to use the same values used for the call to `addEventListener()` when calling `removeEventListener()`
            // see https://github.com/microsoft/TypeScript/issues/32912#issuecomment-522142969
            // eslint-disable-next-line no-undef
            this._domElement.removeEventListener('wheel', onMouseWheel, { passive: false });
            this._domElement.removeEventListener('contextmenu', onContextMenu);
            // eslint-disable-next-line no-undef
            this._domElement.ownerDocument.removeEventListener('pointermove', onPointerMove, { passive: false });
            this._domElement.ownerDocument.removeEventListener('pointerup', onPointerUp);
            this._domElement.ownerDocument.removeEventListener('pointerlockchange', onPointerLockChange);
            this._domElement.ownerDocument.removeEventListener('pointerlockerror', onPointerLockError);
        };
        this.cancel = () => {
            if (this._state === ACTION.NONE)
                return;
            this._state = ACTION.NONE;
            this._activePointers.length = 0;
            endDragging();
        };
        if (domElement)
            this.connect(domElement);
        this.update(0);
    }
    /**
     * The camera to be controlled
     * @category Properties
     */
    get camera() {
        return this._camera;
    }
    set camera(camera) {
        this._camera = camera;
        this.updateCameraUp();
        this._camera.updateProjectionMatrix();
        this._updateNearPlaneCorners();
        this._needsUpdate = true;
    }
    /**
     * Whether or not the controls are enabled.
     * `false` to disable user dragging/touch-move, but all methods works.
     * @category Properties
     */
    get enabled() {
        return this._enabled;
    }
    set enabled(enabled) {
        this._enabled = enabled;
        if (!this._domElement)
            return;
        if (enabled) {
            this._domElement.style.touchAction = 'none';
            this._domElement.style.userSelect = 'none';
            this._domElement.style.webkitUserSelect = 'none';
        }
        else {
            this.cancel();
            this._domElement.style.touchAction = '';
            this._domElement.style.userSelect = '';
            this._domElement.style.webkitUserSelect = '';
        }
    }
    /**
     * Returns `true` if the controls are active updating.
     * readonly value.
     * @category Properties
     */
    get active() {
        return !this._hasRested;
    }
    /**
     * Getter for the current `ACTION`.
     * readonly value.
     * @category Properties
     */
    get currentAction() {
        return this._state;
    }
    /**
     * get/set Current distance.
     * @category Properties
     */
    get distance() {
        return this._spherical.radius;
    }
    set distance(distance) {
        if (this._spherical.radius === distance &&
            this._sphericalEnd.radius === distance)
            return;
        this._spherical.radius = distance;
        this._sphericalEnd.radius = distance;
        this._needsUpdate = true;
    }
    // horizontal angle
    /**
     * get/set the azimuth angle (horizontal) in radians.
     * Every 360 degrees turn is added to `.azimuthAngle` value, which is accumulative.
     * @category Properties
     */
    get azimuthAngle() {
        return this._spherical.theta;
    }
    set azimuthAngle(azimuthAngle) {
        if (this._spherical.theta === azimuthAngle &&
            this._sphericalEnd.theta === azimuthAngle)
            return;
        this._spherical.theta = azimuthAngle;
        this._sphericalEnd.theta = azimuthAngle;
        this._needsUpdate = true;
    }
    // vertical angle
    /**
     * get/set the polar angle (vertical) in radians.
     * @category Properties
     */
    get polarAngle() {
        return this._spherical.phi;
    }
    set polarAngle(polarAngle) {
        if (this._spherical.phi === polarAngle &&
            this._sphericalEnd.phi === polarAngle)
            return;
        this._spherical.phi = polarAngle;
        this._sphericalEnd.phi = polarAngle;
        this._needsUpdate = true;
    }
    /**
     * Whether camera position should be enclosed in the boundary or not.
     * @category Properties
     */
    get boundaryEnclosesCamera() {
        return this._boundaryEnclosesCamera;
    }
    set boundaryEnclosesCamera(boundaryEnclosesCamera) {
        this._boundaryEnclosesCamera = boundaryEnclosesCamera;
        this._needsUpdate = true;
    }
    /**
     * Set drag-start, touches and wheel enable area in the domElement.
     * each values are between `0` and `1` inclusive, where `0` is left/top and `1` is right/bottom of the screen.
     * e.g. `{ x: 0, y: 0, width: 1, height: 1 }` for entire area.
     * @category Properties
     */
    set interactiveArea(interactiveArea) {
        this._interactiveArea.width = clamp(interactiveArea.width, 0, 1);
        this._interactiveArea.height = clamp(interactiveArea.height, 0, 1);
        this._interactiveArea.x = clamp(interactiveArea.x, 0, 1 - this._interactiveArea.width);
        this._interactiveArea.y = clamp(interactiveArea.y, 0, 1 - this._interactiveArea.height);
    }
    /**
     * Adds the specified event listener.
     * Applicable event types (which is `K`) are:
     * | Event name          | Timing |
     * | ------------------- | ------ |
     * | `'controlstart'`    | When the user starts to control the camera via mouse / touches. ¹ |
     * | `'control'`         | When the user controls the camera (dragging). |
     * | `'controlend'`      | When the user ends to control the camera. ¹ |
     * | `'transitionstart'` | When any kind of transition starts, either user control or using a method with `enableTransition = true` |
     * | `'update'`          | When the camera position is updated. |
     * | `'wake'`            | When the camera starts moving. |
     * | `'rest'`            | When the camera movement is below `.restThreshold` ². |
     * | `'sleep'`           | When the camera end moving. |
     *
     * 1. `mouseButtons.wheel` (Mouse wheel control) does not emit `'controlstart'` and `'controlend'`. `mouseButtons.wheel` uses scroll-event internally, and scroll-event happens intermittently. That means "start" and "end" cannot be detected.
     * 2. Due to damping, `sleep` will usually fire a few seconds after the camera _appears_ to have stopped moving. If you want to do something (e.g. enable UI, perform another transition) at the point when the camera has stopped, you probably want the `rest` event. This can be fine tuned using the `.restThreshold` parameter. See the [Rest and Sleep Example](https://yomotsu.github.io/camera-controls/examples/rest-and-sleep.html).
     *
     * e.g.
     * ```
     * cameraControl.addEventListener( 'controlstart', myCallbackFunction );
     * ```
     * @param type event name
     * @param listener handler function
     * @category Methods
     */
    addEventListener(type, listener) {
        super.addEventListener(type, listener);
    }
    /**
     * Removes the specified event listener
     * e.g.
     * ```
     * cameraControl.addEventListener( 'controlstart', myCallbackFunction );
     * ```
     * @param type event name
     * @param listener handler function
     * @category Methods
     */
    removeEventListener(type, listener) {
        super.removeEventListener(type, listener);
    }
    /**
     * Rotate azimuthal angle(horizontal) and polar angle(vertical).
     * Every value is added to the current value.
     * @param azimuthAngle Azimuth rotate angle. In radian.
     * @param polarAngle Polar rotate angle. In radian.
     * @param enableTransition Whether to move smoothly or immediately
     * @category Methods
     */
    rotate(azimuthAngle, polarAngle, enableTransition = false) {
        return this.rotateTo(this._sphericalEnd.theta + azimuthAngle, this._sphericalEnd.phi + polarAngle, enableTransition);
    }
    /**
     * Rotate azimuthal angle(horizontal) to the given angle and keep the same polar angle(vertical) target.
     *
     * e.g.
     * ```
     * cameraControls.rotateAzimuthTo( 30 * THREE.MathUtils.DEG2RAD, true );
     * ```
     * @param azimuthAngle Azimuth rotate angle. In radian.
     * @param enableTransition Whether to move smoothly or immediately
     * @category Methods
     */
    rotateAzimuthTo(azimuthAngle, enableTransition = false) {
        return this.rotateTo(azimuthAngle, this._sphericalEnd.phi, enableTransition);
    }
    /**
     * Rotate polar angle(vertical) to the given angle and keep the same azimuthal angle(horizontal) target.
     *
     * e.g.
     * ```
     * cameraControls.rotatePolarTo( 30 * THREE.MathUtils.DEG2RAD, true );
     * ```
     * @param polarAngle Polar rotate angle. In radian.
     * @param enableTransition Whether to move smoothly or immediately
     * @category Methods
     */
    rotatePolarTo(polarAngle, enableTransition = false) {
        return this.rotateTo(this._sphericalEnd.theta, polarAngle, enableTransition);
    }
    /**
     * Rotate azimuthal angle(horizontal) and polar angle(vertical) to the given angle.
     * Camera view will rotate over the orbit pivot absolutely:
     *
     * azimuthAngle
     * ```
     *       0º
     *         \
     * 90º -----+----- -90º
     *           \
     *           180º
     * ```
     * | direction | angle                  |
     * | --------- | ---------------------- |
     * | front     | 0º                     |
     * | left      | 90º (`Math.PI / 2`)    |
     * | right     | -90º (`- Math.PI / 2`) |
     * | back      | 180º (`Math.PI`)       |
     *
     * polarAngle
     * ```
     *     180º
     *      |
     *      90º
     *      |
     *      0º
     * ```
     * | direction            | angle                  |
     * | -------------------- | ---------------------- |
     * | top/sky              | 180º (`Math.PI`)       |
     * | horizontal from view | 90º (`Math.PI / 2`)    |
     * | bottom/floor         | 0º                     |
     *
     * @param azimuthAngle Azimuth rotate angle to. In radian.
     * @param polarAngle Polar rotate angle to. In radian.
     * @param enableTransition  Whether to move smoothly or immediately
     * @category Methods
     */
    rotateTo(azimuthAngle, polarAngle, enableTransition = false) {
        this._isUserControllingRotate = false;
        const theta = clamp(azimuthAngle, this.minAzimuthAngle, this.maxAzimuthAngle);
        const phi = clamp(polarAngle, this.minPolarAngle, this.maxPolarAngle);
        this._sphericalEnd.theta = theta;
        this._sphericalEnd.phi = phi;
        this._sphericalEnd.makeSafe();
        this._needsUpdate = true;
        if (!enableTransition) {
            this._spherical.theta = this._sphericalEnd.theta;
            this._spherical.phi = this._sphericalEnd.phi;
        }
        const resolveImmediately = !enableTransition ||
            approxEquals(this._spherical.theta, this._sphericalEnd.theta, this.restThreshold) &&
                approxEquals(this._spherical.phi, this._sphericalEnd.phi, this.restThreshold);
        return this._createOnRestPromise(resolveImmediately);
    }
    /**
     * Dolly in/out camera position.
     * @param distance Distance of dollyIn. Negative number for dollyOut.
     * @param enableTransition Whether to move smoothly or immediately.
     * @category Methods
     */
    dolly(distance, enableTransition = false) {
        return this.dollyTo(this._sphericalEnd.radius - distance, enableTransition);
    }
    /**
     * Dolly in/out camera position to given distance.
     * @param distance Distance of dolly.
     * @param enableTransition Whether to move smoothly or immediately.
     * @category Methods
     */
    dollyTo(distance, enableTransition = false) {
        this._isUserControllingDolly = false;
        this._lastDollyDirection = DOLLY_DIRECTION.NONE;
        this._changedDolly = 0;
        return this._dollyToNoClamp(clamp(distance, this.minDistance, this.maxDistance), enableTransition);
    }
    _dollyToNoClamp(distance, enableTransition = false) {
        const lastRadius = this._sphericalEnd.radius;
        const hasCollider = this.colliderMeshes.length >= 1;
        if (hasCollider) {
            const maxDistanceByCollisionTest = this._collisionTest();
            const isCollided = approxEquals(maxDistanceByCollisionTest, this._spherical.radius);
            const isDollyIn = lastRadius > distance;
            if (!isDollyIn && isCollided)
                return Promise.resolve();
            this._sphericalEnd.radius = Math.min(distance, maxDistanceByCollisionTest);
        }
        else {
            this._sphericalEnd.radius = distance;
        }
        this._needsUpdate = true;
        if (!enableTransition) {
            this._spherical.radius = this._sphericalEnd.radius;
        }
        const resolveImmediately = !enableTransition || approxEquals(this._spherical.radius, this._sphericalEnd.radius, this.restThreshold);
        return this._createOnRestPromise(resolveImmediately);
    }
    /**
     * Dolly in, but does not change the distance between the target and the camera, and moves the target position instead.
     * Specify a negative value for dolly out.
     * @param distance Distance of dolly.
     * @param enableTransition Whether to move smoothly or immediately.
     * @category Methods
     */
    dollyInFixed(distance, enableTransition = false) {
        this._targetEnd.add(this._getCameraDirection(_cameraDirection).multiplyScalar(distance));
        if (!enableTransition) {
            this._target.copy(this._targetEnd);
        }
        const resolveImmediately = !enableTransition ||
            approxEquals(this._target.x, this._targetEnd.x, this.restThreshold) &&
                approxEquals(this._target.y, this._targetEnd.y, this.restThreshold) &&
                approxEquals(this._target.z, this._targetEnd.z, this.restThreshold);
        return this._createOnRestPromise(resolveImmediately);
    }
    /**
     * Zoom in/out camera. The value is added to camera zoom.
     * Limits set with `.minZoom` and `.maxZoom`
     * @param zoomStep zoom scale
     * @param enableTransition Whether to move smoothly or immediately
     * @category Methods
     */
    zoom(zoomStep, enableTransition = false) {
        return this.zoomTo(this._zoomEnd + zoomStep, enableTransition);
    }
    /**
     * Zoom in/out camera to given scale. The value overwrites camera zoom.
     * Limits set with .minZoom and .maxZoom
     * @param zoom
     * @param enableTransition
     * @category Methods
     */
    zoomTo(zoom, enableTransition = false) {
        this._isUserControllingZoom = false;
        this._zoomEnd = clamp(zoom, this.minZoom, this.maxZoom);
        this._needsUpdate = true;
        if (!enableTransition) {
            this._zoom = this._zoomEnd;
        }
        const resolveImmediately = !enableTransition || approxEquals(this._zoom, this._zoomEnd, this.restThreshold);
        this._changedZoom = 0;
        return this._createOnRestPromise(resolveImmediately);
    }
    /**
     * @deprecated `pan()` has been renamed to `truck()`
     * @category Methods
     */
    pan(x, y, enableTransition = false) {
        console.warn('`pan` has been renamed to `truck`');
        return this.truck(x, y, enableTransition);
    }
    /**
     * Truck and pedestal camera using current azimuthal angle
     * @param x Horizontal translate amount
     * @param y Vertical translate amount
     * @param enableTransition Whether to move smoothly or immediately
     * @category Methods
     */
    truck(x, y, enableTransition = false) {
        this._camera.updateMatrix();
        _xColumn.setFromMatrixColumn(this._camera.matrix, 0);
        _yColumn.setFromMatrixColumn(this._camera.matrix, 1);
        _xColumn.multiplyScalar(x);
        _yColumn.multiplyScalar(-y);
        const offset = _v3A.copy(_xColumn).add(_yColumn);
        const to = _v3B.copy(this._targetEnd).add(offset);
        return this.moveTo(to.x, to.y, to.z, enableTransition);
    }
    /**
     * Move forward / backward.
     * @param distance Amount to move forward / backward. Negative value to move backward
     * @param enableTransition Whether to move smoothly or immediately
     * @category Methods
     */
    forward(distance, enableTransition = false) {
        _v3A.setFromMatrixColumn(this._camera.matrix, 0);
        _v3A.crossVectors(this._camera.up, _v3A);
        _v3A.multiplyScalar(distance);
        this._forwardDelta = distance;
        const to = _v3B.copy(this._targetEnd).add(_v3A);
        return this.moveTo(to.x, to.y, to.z, enableTransition);
    }
    /**
     * Move forward / backward in view direction.
     * @param distance Amount to move forward / backward. Negative value to move backward
     * @param enableTransition Whether to move smoothly or immediately
     * @category Methods
     */
    forwardView(distance, enableTransition = false) {
        // Get the view direction
        this._camera.getWorldDirection(_v3A);
        _v3A.normalize();
        _v3A.multiplyScalar(distance);
        this._forwardDelta = distance;
        const to = _v3B.copy(this._targetEnd).add(_v3A);
        return this.moveTo(to.x, to.y, to.z, enableTransition);
    }
    /**
     * Move up / down.
     * @param height Amount to move up / down. Negative value to move down
     * @param enableTransition Whether to move smoothly or immediately
     * @category Methods
     */
    elevate(height, enableTransition = false) {
        _v3A.copy(this._camera.up).multiplyScalar(height);
        return this.moveTo(this._targetEnd.x + _v3A.x, this._targetEnd.y + _v3A.y, this._targetEnd.z + _v3A.z, enableTransition);
    }
    /**
     * Move target position to given point.
     * @param x x coord to move center position
     * @param y y coord to move center position
     * @param z z coord to move center position
     * @param enableTransition Whether to move smoothly or immediately
     * @category Methods
     */
    moveTo(x, y, z, enableTransition = false) {
        this._isUserControllingTruck = false;
        const offset = _v3A.set(x, y, z).sub(this._targetEnd);
        this._encloseToBoundary(this._targetEnd, offset, this.boundaryFriction);
        this._needsUpdate = true;
        if (!enableTransition) {
            this._target.copy(this._targetEnd);
        }
        const resolveImmediately = !enableTransition ||
            approxEquals(this._target.x, this._targetEnd.x, this.restThreshold) &&
                approxEquals(this._target.y, this._targetEnd.y, this.restThreshold) &&
                approxEquals(this._target.z, this._targetEnd.z, this.restThreshold);
        return this._createOnRestPromise(resolveImmediately);
    }
    /**
     * Look in the given point direction.
     * @param x point x.
     * @param y point y.
     * @param z point z.
     * @param enableTransition Whether to move smoothly or immediately.
     * @returns Transition end promise
     * @category Methods
     */
    lookInDirectionOf(x, y, z, enableTransition = false) {
        const point = _v3A.set(x, y, z);
        const direction = point.sub(this._targetEnd).normalize();
        const position = direction.multiplyScalar(-this._sphericalEnd.radius).add(this._targetEnd);
        return this.setPosition(position.x, position.y, position.z, enableTransition);
    }
    /**
     * Fit the viewport to the box or the bounding box of the object, using the nearest axis. paddings are in unit.
     * set `cover: true` to fill enter screen.
     * e.g.
     * ```
     * cameraControls.fitToBox( myMesh );
     * ```
     * @param box3OrObject Axis aligned bounding box to fit the view.
     * @param enableTransition Whether to move smoothly or immediately.
     * @param options | `<object>` { cover: boolean, paddingTop: number, paddingLeft: number, paddingBottom: number, paddingRight: number }
     * @returns Transition end promise
     * @category Methods
     */
    fitToBox(box3OrObject, enableTransition, { cover = false, paddingLeft = 0, paddingRight = 0, paddingBottom = 0, paddingTop = 0 } = {}) {
        const promises = [];
        const aabb = box3OrObject.isBox3
            ? _box3A.copy(box3OrObject)
            : _box3A.setFromObject(box3OrObject);
        if (aabb.isEmpty()) {
            console.warn('camera-controls: fitTo() cannot be used with an empty box. Aborting');
            Promise.resolve();
        }
        // round to closest axis ( forward | backward | right | left | top | bottom )
        const theta = roundToStep(this._sphericalEnd.theta, PI_HALF);
        const phi = roundToStep(this._sphericalEnd.phi, PI_HALF);
        promises.push(this.rotateTo(theta, phi, enableTransition));
        const normal = _v3A.setFromSpherical(this._sphericalEnd).normalize();
        const rotation = _quaternionA.setFromUnitVectors(normal, _AXIS_Z);
        const viewFromPolar = approxEquals(Math.abs(normal.y), 1);
        if (viewFromPolar) {
            rotation.multiply(_quaternionB.setFromAxisAngle(_AXIS_Y, theta));
        }
        rotation.multiply(this._yAxisUpSpaceInverse);
        // make oriented bounding box
        const bb = _box3B.makeEmpty();
        // left bottom back corner
        _v3B.copy(aabb.min).applyQuaternion(rotation);
        bb.expandByPoint(_v3B);
        // right bottom back corner
        _v3B.copy(aabb.min).setX(aabb.max.x).applyQuaternion(rotation);
        bb.expandByPoint(_v3B);
        // left top back corner
        _v3B.copy(aabb.min).setY(aabb.max.y).applyQuaternion(rotation);
        bb.expandByPoint(_v3B);
        // right top back corner
        _v3B.copy(aabb.max).setZ(aabb.min.z).applyQuaternion(rotation);
        bb.expandByPoint(_v3B);
        // left bottom front corner
        _v3B.copy(aabb.min).setZ(aabb.max.z).applyQuaternion(rotation);
        bb.expandByPoint(_v3B);
        // right bottom front corner
        _v3B.copy(aabb.max).setY(aabb.min.y).applyQuaternion(rotation);
        bb.expandByPoint(_v3B);
        // left top front corner
        _v3B.copy(aabb.max).setX(aabb.min.x).applyQuaternion(rotation);
        bb.expandByPoint(_v3B);
        // right top front corner
        _v3B.copy(aabb.max).applyQuaternion(rotation);
        bb.expandByPoint(_v3B);
        // add padding
        bb.min.x -= paddingLeft;
        bb.min.y -= paddingBottom;
        bb.max.x += paddingRight;
        bb.max.y += paddingTop;
        rotation.setFromUnitVectors(_AXIS_Z, normal);
        if (viewFromPolar) {
            rotation.premultiply(_quaternionB.invert());
        }
        rotation.premultiply(this._yAxisUpSpace);
        const bbSize = bb.getSize(_v3A);
        const center = bb.getCenter(_v3B).applyQuaternion(rotation);
        if (isPerspectiveCamera(this._camera)) {
            const distance = this.getDistanceToFitBox(bbSize.x, bbSize.y, bbSize.z, cover);
            promises.push(this.moveTo(center.x, center.y, center.z, enableTransition));
            promises.push(this.dollyTo(distance, enableTransition));
            promises.push(this.setFocalOffset(0, 0, 0, enableTransition));
        }
        else if (isOrthographicCamera(this._camera)) {
            const camera = this._camera;
            const width = camera.right - camera.left;
            const height = camera.top - camera.bottom;
            const zoom = cover ? Math.max(width / bbSize.x, height / bbSize.y) : Math.min(width / bbSize.x, height / bbSize.y);
            promises.push(this.moveTo(center.x, center.y, center.z, enableTransition));
            promises.push(this.zoomTo(zoom, enableTransition));
            promises.push(this.setFocalOffset(0, 0, 0, enableTransition));
        }
        return Promise.all(promises);
    }
    /**
     * Fit the viewport to the sphere or the bounding sphere of the object.
     * @param sphereOrMesh
     * @param enableTransition
     * @category Methods
     */
    fitToSphere(sphereOrMesh, enableTransition) {
        const promises = [];
        const isSphere = sphereOrMesh instanceof THREE.Sphere;
        const boundingSphere = isSphere ?
            _sphere.copy(sphereOrMesh) :
            CameraControls.createBoundingSphere(sphereOrMesh, _sphere);
        promises.push(this.moveTo(boundingSphere.center.x, boundingSphere.center.y, boundingSphere.center.z, enableTransition));
        if (isPerspectiveCamera(this._camera)) {
            const distanceToFit = this.getDistanceToFitSphere(boundingSphere.radius);
            promises.push(this.dollyTo(distanceToFit, enableTransition));
        }
        else if (isOrthographicCamera(this._camera)) {
            const width = this._camera.right - this._camera.left;
            const height = this._camera.top - this._camera.bottom;
            const diameter = 2 * boundingSphere.radius;
            const zoom = Math.min(width / diameter, height / diameter);
            promises.push(this.zoomTo(zoom, enableTransition));
        }
        promises.push(this.setFocalOffset(0, 0, 0, enableTransition));
        return Promise.all(promises);
    }
    /**
     * Look at the `target` from the `position`.
     * @param positionX
     * @param positionY
     * @param positionZ
     * @param targetX
     * @param targetY
     * @param targetZ
     * @param enableTransition
     * @category Methods
     */
    setLookAt(positionX, positionY, positionZ, targetX, targetY, targetZ, enableTransition = false) {
        this._isUserControllingRotate = false;
        this._isUserControllingDolly = false;
        this._isUserControllingTruck = false;
        this._lastDollyDirection = DOLLY_DIRECTION.NONE;
        this._changedDolly = 0;
        const target = _v3B.set(targetX, targetY, targetZ);
        const position = _v3A.set(positionX, positionY, positionZ);
        this._targetEnd.copy(target);
        this._sphericalEnd.setFromVector3(position.sub(target).applyQuaternion(this._yAxisUpSpace));
        this.normalizeRotations();
        this._needsUpdate = true;
        if (!enableTransition) {
            this._target.copy(this._targetEnd);
            this._spherical.copy(this._sphericalEnd);
        }
        const resolveImmediately = !enableTransition ||
            approxEquals(this._target.x, this._targetEnd.x, this.restThreshold) &&
                approxEquals(this._target.y, this._targetEnd.y, this.restThreshold) &&
                approxEquals(this._target.z, this._targetEnd.z, this.restThreshold) &&
                approxEquals(this._spherical.theta, this._sphericalEnd.theta, this.restThreshold) &&
                approxEquals(this._spherical.phi, this._sphericalEnd.phi, this.restThreshold) &&
                approxEquals(this._spherical.radius, this._sphericalEnd.radius, this.restThreshold);
        return this._createOnRestPromise(resolveImmediately);
    }
    /**
     * Similar to setLookAt, but it interpolates between two states.
     * @param positionAX
     * @param positionAY
     * @param positionAZ
     * @param targetAX
     * @param targetAY
     * @param targetAZ
     * @param positionBX
     * @param positionBY
     * @param positionBZ
     * @param targetBX
     * @param targetBY
     * @param targetBZ
     * @param t
     * @param enableTransition
     * @category Methods
     */
    lerpLookAt(positionAX, positionAY, positionAZ, targetAX, targetAY, targetAZ, positionBX, positionBY, positionBZ, targetBX, targetBY, targetBZ, t, enableTransition = false) {
        this._isUserControllingRotate = false;
        this._isUserControllingDolly = false;
        this._isUserControllingTruck = false;
        this._lastDollyDirection = DOLLY_DIRECTION.NONE;
        this._changedDolly = 0;
        const targetA = _v3A.set(targetAX, targetAY, targetAZ);
        const positionA = _v3B.set(positionAX, positionAY, positionAZ);
        _sphericalA.setFromVector3(positionA.sub(targetA).applyQuaternion(this._yAxisUpSpace));
        const targetB = _v3C.set(targetBX, targetBY, targetBZ);
        const positionB = _v3B.set(positionBX, positionBY, positionBZ);
        _sphericalB.setFromVector3(positionB.sub(targetB).applyQuaternion(this._yAxisUpSpace));
        this._targetEnd.copy(targetA.lerp(targetB, t)); // tricky
        const deltaTheta = _sphericalB.theta - _sphericalA.theta;
        const deltaPhi = _sphericalB.phi - _sphericalA.phi;
        const deltaRadius = _sphericalB.radius - _sphericalA.radius;
        this._sphericalEnd.set(_sphericalA.radius + deltaRadius * t, _sphericalA.phi + deltaPhi * t, _sphericalA.theta + deltaTheta * t);
        this.normalizeRotations();
        this._needsUpdate = true;
        if (!enableTransition) {
            this._target.copy(this._targetEnd);
            this._spherical.copy(this._sphericalEnd);
        }
        const resolveImmediately = !enableTransition ||
            approxEquals(this._target.x, this._targetEnd.x, this.restThreshold) &&
                approxEquals(this._target.y, this._targetEnd.y, this.restThreshold) &&
                approxEquals(this._target.z, this._targetEnd.z, this.restThreshold) &&
                approxEquals(this._spherical.theta, this._sphericalEnd.theta, this.restThreshold) &&
                approxEquals(this._spherical.phi, this._sphericalEnd.phi, this.restThreshold) &&
                approxEquals(this._spherical.radius, this._sphericalEnd.radius, this.restThreshold);
        return this._createOnRestPromise(resolveImmediately);
    }
    /**
     * Set angle and distance by given position.
     * An alias of `setLookAt()`, without target change. Thus keep gazing at the current target
     * @param positionX
     * @param positionY
     * @param positionZ
     * @param enableTransition
     * @category Methods
     */
    setPosition(positionX, positionY, positionZ, enableTransition = false) {
        return this.setLookAt(positionX, positionY, positionZ, this._targetEnd.x, this._targetEnd.y, this._targetEnd.z, enableTransition);
    }
    /**
     * Set the target position where gaze at.
     * An alias of `setLookAt()`, without position change. Thus keep the same position.
     * @param targetX
     * @param targetY
     * @param targetZ
     * @param enableTransition
     * @category Methods
     */
    setTarget(targetX, targetY, targetZ, enableTransition = false) {
        const pos = this.getPosition(_v3A);
        const promise = this.setLookAt(pos.x, pos.y, pos.z, targetX, targetY, targetZ, enableTransition);
        // see https://github.com/yomotsu/camera-controls/issues/335
        this._sphericalEnd.phi = clamp(this._sphericalEnd.phi, this.minPolarAngle, this.maxPolarAngle);
        return promise;
    }
    /**
     * Set focal offset using the screen parallel coordinates. z doesn't affect in Orthographic as with Dolly.
     * @param x
     * @param y
     * @param z
     * @param enableTransition
     * @category Methods
     */
    setFocalOffset(x, y, z, enableTransition = false) {
        this._isUserControllingOffset = false;
        this._focalOffsetEnd.set(x, y, z);
        this._needsUpdate = true;
        if (!enableTransition)
            this._focalOffset.copy(this._focalOffsetEnd);
        const resolveImmediately = !enableTransition ||
            approxEquals(this._focalOffset.x, this._focalOffsetEnd.x, this.restThreshold) &&
                approxEquals(this._focalOffset.y, this._focalOffsetEnd.y, this.restThreshold) &&
                approxEquals(this._focalOffset.z, this._focalOffsetEnd.z, this.restThreshold);
        return this._createOnRestPromise(resolveImmediately);
    }
    /**
     * Set orbit point without moving the camera.
     * SHOULD NOT RUN DURING ANIMATIONS. `setOrbitPoint()` will immediately fix the positions.
     * @param targetX
     * @param targetY
     * @param targetZ
     * @category Methods
     */
    setOrbitPoint(targetX, targetY, targetZ) {
        this._camera.updateMatrixWorld();
        _xColumn.setFromMatrixColumn(this._camera.matrixWorldInverse, 0);
        _yColumn.setFromMatrixColumn(this._camera.matrixWorldInverse, 1);
        _zColumn.setFromMatrixColumn(this._camera.matrixWorldInverse, 2);
        const position = _v3A.set(targetX, targetY, targetZ);
        const distance = position.distanceTo(this._camera.position);
        const cameraToPoint = position.sub(this._camera.position);
        _xColumn.multiplyScalar(cameraToPoint.x);
        _yColumn.multiplyScalar(cameraToPoint.y);
        _zColumn.multiplyScalar(cameraToPoint.z);
        _v3A.copy(_xColumn).add(_yColumn).add(_zColumn);
        _v3A.z = _v3A.z + distance;
        this.dollyTo(distance, false);
        this.setFocalOffset(-_v3A.x, _v3A.y, -_v3A.z, false);
        this.moveTo(targetX, targetY, targetZ, false);
    }
    /**
     * Set the boundary box that encloses the target of the camera. box3 is in THREE.Box3
     * @param box3
     * @category Methods
     */
    setBoundary(box3) {
        if (!box3) {
            this._boundary.min.set(-Infinity, -Infinity, -Infinity);
            this._boundary.max.set(Infinity, Infinity, Infinity);
            this._needsUpdate = true;
            return;
        }
        this._boundary.copy(box3);
        this._boundary.clampPoint(this._targetEnd, this._targetEnd);
        this._needsUpdate = true;
    }
    /**
     * Set (or unset) the current viewport.
     * Set this when you want to use renderer viewport and .dollyToCursor feature at the same time.
     * @param viewportOrX
     * @param y
     * @param width
     * @param height
     * @category Methods
     */
    setViewport(viewportOrX, y, width, height) {
        if (viewportOrX === null) { // null
            this._viewport = null;
            return;
        }
        this._viewport = this._viewport || new THREE.Vector4();
        if (typeof viewportOrX === 'number') { // number
            this._viewport.set(viewportOrX, y, width, height);
        }
        else { // Vector4
            this._viewport.copy(viewportOrX);
        }
    }
    /**
     * Calculate the distance to fit the box.
     * @param width box width
     * @param height box height
     * @param depth box depth
     * @returns distance
     * @category Methods
     */
    getDistanceToFitBox(width, height, depth, cover = false) {
        if (notSupportedInOrthographicCamera(this._camera, 'getDistanceToFitBox'))
            return this._spherical.radius;
        const boundingRectAspect = width / height;
        const fov = this._camera.getEffectiveFOV() * DEG2RAD;
        const aspect = this._camera.aspect;
        const heightToFit = (cover ? boundingRectAspect > aspect : boundingRectAspect < aspect) ? height : width / aspect;
        return heightToFit * 0.5 / Math.tan(fov * 0.5) + depth * 0.5;
    }
    /**
     * Calculate the distance to fit the sphere.
     * @param radius sphere radius
     * @returns distance
     * @category Methods
     */
    getDistanceToFitSphere(radius) {
        if (notSupportedInOrthographicCamera(this._camera, 'getDistanceToFitSphere'))
            return this._spherical.radius;
        // https://stackoverflow.com/a/44849975
        const vFOV = this._camera.getEffectiveFOV() * DEG2RAD;
        const hFOV = Math.atan(Math.tan(vFOV * 0.5) * this._camera.aspect) * 2;
        const fov = 1 < this._camera.aspect ? vFOV : hFOV;
        return radius / (Math.sin(fov * 0.5));
    }
    /**
     * Returns the orbit center position, where the camera looking at.
     * @param out The receiving Vector3 instance to copy the result
     * @param receiveEndValue Whether receive the transition end coords or current. default is `true`
     * @category Methods
     */
    getTarget(out, receiveEndValue = true) {
        const _out = !!out && out.isVector3 ? out : new THREE.Vector3();
        return _out.copy(receiveEndValue ? this._targetEnd : this._target);
    }
    /**
     * Returns the camera position.
     * @param out The receiving Vector3 instance to copy the result
     * @param receiveEndValue Whether receive the transition end coords or current. default is `true`
     * @category Methods
     */
    getPosition(out, receiveEndValue = true) {
        const _out = !!out && out.isVector3 ? out : new THREE.Vector3();
        return _out.setFromSpherical(receiveEndValue ? this._sphericalEnd : this._spherical).applyQuaternion(this._yAxisUpSpaceInverse).add(receiveEndValue ? this._targetEnd : this._target);
    }
    /**
     * Returns the spherical coordinates of the orbit.
     * @param out The receiving Spherical instance to copy the result
     * @param receiveEndValue Whether receive the transition end coords or current. default is `true`
     * @category Methods
     */
    getSpherical(out, receiveEndValue = true) {
        const _out = !!out && out instanceof THREE.Spherical ? out : new THREE.Spherical();
        return _out.copy(receiveEndValue ? this._sphericalEnd : this._spherical);
    }
    /**
     * Returns the focal offset, which is how much the camera appears to be translated in screen parallel coordinates.
     * @param out The receiving Vector3 instance to copy the result
     * @param receiveEndValue Whether receive the transition end coords or current. default is `true`
     * @category Methods
     */
    getFocalOffset(out, receiveEndValue = true) {
        const _out = !!out && out.isVector3 ? out : new THREE.Vector3();
        return _out.copy(receiveEndValue ? this._focalOffsetEnd : this._focalOffset);
    }
    /**
     * Normalize camera azimuth angle rotation between 0 and 360 degrees.
     * @category Methods
     */
    normalizeRotations() {
        this._sphericalEnd.theta = this._sphericalEnd.theta % PI_2;
        if (this._sphericalEnd.theta < 0)
            this._sphericalEnd.theta += PI_2;
        this._spherical.theta += PI_2 * Math.round((this._sphericalEnd.theta - this._spherical.theta) / PI_2);
    }
    /**
     * Reset all rotation and position to defaults.
     * @param enableTransition
     * @category Methods
     */
    reset(enableTransition = false) {
        if (!approxEquals(this._camera.up.x, this._cameraUp0.x) ||
            !approxEquals(this._camera.up.y, this._cameraUp0.y) ||
            !approxEquals(this._camera.up.z, this._cameraUp0.z)) {
            this._camera.up.copy(this._cameraUp0);
            const position = this.getPosition(_v3A);
            this.updateCameraUp();
            this.setPosition(position.x, position.y, position.z);
        }
        const promises = [
            this.setLookAt(this._position0.x, this._position0.y, this._position0.z, this._target0.x, this._target0.y, this._target0.z, enableTransition),
            this.setFocalOffset(this._focalOffset0.x, this._focalOffset0.y, this._focalOffset0.z, enableTransition),
            this.zoomTo(this._zoom0, enableTransition),
        ];
        return Promise.all(promises);
    }
    /**
     * Set current camera position as the default position.
     * @category Methods
     */
    saveState() {
        this._cameraUp0.copy(this._camera.up);
        this.getTarget(this._target0);
        this.getPosition(this._position0);
        this._zoom0 = this._zoom;
        this._focalOffset0.copy(this._focalOffset);
    }
    /**
     * Sync camera-up direction.
     * When camera-up vector is changed, `.updateCameraUp()` must be called.
     * @category Methods
     */
    updateCameraUp() {
        this._yAxisUpSpace.setFromUnitVectors(this._camera.up, _AXIS_Y);
        this._yAxisUpSpaceInverse.copy(this._yAxisUpSpace).invert();
    }
    /**
     * Apply current camera-up direction to the camera.
     * The orbit system will be re-initialized with the current position.
     * @category Methods
     */
    applyCameraUp() {
        const cameraDirection = _v3A.subVectors(this._target, this._camera.position).normalize();
        // So first find the vector off to the side, orthogonal to both this.object.up and
        // the "view" vector.
        const side = _v3B.crossVectors(cameraDirection, this._camera.up);
        // Then find the vector orthogonal to both this "side" vector and the "view" vector.
        // This vector will be the new "up" vector.
        this._camera.up.crossVectors(side, cameraDirection).normalize();
        this._camera.updateMatrixWorld();
        const position = this.getPosition(_v3A);
        this.updateCameraUp();
        this.setPosition(position.x, position.y, position.z);
    }
    /**
     * Update camera position and directions.
     * This should be called in your tick loop every time, and returns true if re-rendering is needed.
     * @param delta
     * @returns updated
     * @category Methods
     */
    update(delta) {
        const deltaTheta = this._sphericalEnd.theta - this._spherical.theta;
        const deltaPhi = this._sphericalEnd.phi - this._spherical.phi;
        const deltaRadius = this._sphericalEnd.radius - this._spherical.radius;
        const deltaTarget = _deltaTarget.subVectors(this._targetEnd, this._target);
        const deltaOffset = _deltaOffset.subVectors(this._focalOffsetEnd, this._focalOffset);
        const deltaZoom = this._zoomEnd - this._zoom;
        const originalTarget = this._target.clone();
        // update theta
        if (approxZero(deltaTheta)) {
            this._thetaVelocity.value = 0;
            this._spherical.theta = this._sphericalEnd.theta;
        }
        else {
            const smoothTime = this._isUserControllingRotate ? this.draggingSmoothTime : this.smoothTime;
            this._spherical.theta = smoothDamp(this._spherical.theta, this._sphericalEnd.theta, this._thetaVelocity, smoothTime, Infinity, delta);
            this._needsUpdate = true;
        }
        // update phi
        if (approxZero(deltaPhi)) {
            this._phiVelocity.value = 0;
            this._spherical.phi = this._sphericalEnd.phi;
        }
        else {
            const smoothTime = this._isUserControllingRotate ? this.draggingSmoothTime : this.smoothTime;
            this._spherical.phi = smoothDamp(this._spherical.phi, this._sphericalEnd.phi, this._phiVelocity, smoothTime, Infinity, delta);
            this._needsUpdate = true;
        }
        if (!approxZero(deltaTheta) || !approxZero(deltaPhi)) {
            this.dispatchEvent({ type: 'rotate', deltaTheta, deltaPhi });
        }
        // update distance
        if (approxZero(deltaRadius)) {
            this._radiusVelocity.value = 0;
            this._spherical.radius = this._sphericalEnd.radius;
        }
        else {
            const smoothTime = this._isUserControllingDolly ? this.draggingSmoothTime : this.smoothTime;
            this._spherical.radius = smoothDamp(this._spherical.radius, this._sphericalEnd.radius, this._radiusVelocity, smoothTime, this.maxSpeed, delta);
            this._needsUpdate = true;
        }
        // Collision detection round 2
        // this._collisionTestTarget( originalTarget, deltaTarget );
        // update target position
        if (approxZero(deltaTarget.x) && approxZero(deltaTarget.y) && approxZero(deltaTarget.z)) {
            this._targetVelocity.set(0, 0, 0);
            this._target.copy(this._targetEnd);
        }
        else {
            // Collision detection round 2
            this._collisionTestTarget(originalTarget, deltaTarget);
            const smoothTime = this._isUserControllingTruck ? this.draggingSmoothTime : this.smoothTime;
            smoothDampVec3(this._target, this._targetEnd, this._targetVelocity, smoothTime, this.maxSpeed, delta, this._target);
            this._needsUpdate = true;
            this.dispatchEvent({ type: 'move', delta: deltaTarget.clone() });
        }
        if (!approxZero(this._forwardDelta)) {
            this.dispatchEvent({ type: 'forward', delta: this._forwardDelta });
            this._forwardDelta = 0;
        }
        // update focalOffset
        if (approxZero(deltaOffset.x) && approxZero(deltaOffset.y) && approxZero(deltaOffset.z)) {
            this._focalOffsetVelocity.set(0, 0, 0);
            this._focalOffset.copy(this._focalOffsetEnd);
        }
        else {
            const smoothTime = this._isUserControllingOffset ? this.draggingSmoothTime : this.smoothTime;
            smoothDampVec3(this._focalOffset, this._focalOffsetEnd, this._focalOffsetVelocity, smoothTime, this.maxSpeed, delta, this._focalOffset);
            this._needsUpdate = true;
        }
        // update zoom
        if (approxZero(deltaZoom)) {
            this._zoomVelocity.value = 0;
            this._zoom = this._zoomEnd;
        }
        else {
            const smoothTime = this._isUserControllingZoom ? this.draggingSmoothTime : this.smoothTime;
            this._zoom = smoothDamp(this._zoom, this._zoomEnd, this._zoomVelocity, smoothTime, Infinity, delta);
        }
        if (this.dollyToCursor) {
            if (isPerspectiveCamera(this._camera) && this._changedDolly !== 0) {
                const dollyControlAmount = this._spherical.radius - this._lastDistance;
                const camera = this._camera;
                const cameraDirection = this._getCameraDirection(_cameraDirection);
                const planeX = _v3A.copy(cameraDirection).cross(camera.up).normalize();
                if (planeX.lengthSq() === 0)
                    planeX.x = 1.0;
                const planeY = _v3B.crossVectors(planeX, cameraDirection);
                const worldToScreen = this._sphericalEnd.radius * Math.tan(camera.getEffectiveFOV() * DEG2RAD * 0.5);
                const prevRadius = this._sphericalEnd.radius - dollyControlAmount;
                const lerpRatio = (prevRadius - this._sphericalEnd.radius) / this._sphericalEnd.radius;
                const cursor = _v3C.copy(this._targetEnd)
                    .add(planeX.multiplyScalar(this._dollyControlCoord.x * worldToScreen * camera.aspect))
                    .add(planeY.multiplyScalar(this._dollyControlCoord.y * worldToScreen));
                const newTargetEnd = _v3A.copy(this._targetEnd).lerp(cursor, lerpRatio);
                const isMin = this._lastDollyDirection === DOLLY_DIRECTION.IN && this._spherical.radius <= this.minDistance;
                const isMax = this._lastDollyDirection === DOLLY_DIRECTION.OUT && this.maxDistance <= this._spherical.radius;
                if (this.infinityDolly && (isMin || isMax)) {
                    this._sphericalEnd.radius -= dollyControlAmount;
                    this._spherical.radius -= dollyControlAmount;
                    const dollyAmount = _v3B.copy(cameraDirection).multiplyScalar(-dollyControlAmount);
                    newTargetEnd.add(dollyAmount);
                }
                // target position may be moved beyond boundary.
                this._boundary.clampPoint(newTargetEnd, newTargetEnd);
                const targetEndDiff = _v3B.subVectors(newTargetEnd, this._targetEnd);
                this._targetEnd.copy(newTargetEnd);
                this._target.add(targetEndDiff);
                this._changedDolly -= dollyControlAmount;
                if (approxZero(this._changedDolly))
                    this._changedDolly = 0;
            }
            else if (isOrthographicCamera(this._camera) && this._changedZoom !== 0) {
                const dollyControlAmount = this._zoom - this._lastZoom;
                const camera = this._camera;
                const worldCursorPosition = _v3A.set(this._dollyControlCoord.x, this._dollyControlCoord.y, (camera.near + camera.far) / (camera.near - camera.far)).unproject(camera);
                const quaternion = _v3B.set(0, 0, -1).applyQuaternion(camera.quaternion);
                const cursor = _v3C.copy(worldCursorPosition).add(quaternion.multiplyScalar(-worldCursorPosition.dot(camera.up)));
                const prevZoom = this._zoom - dollyControlAmount;
                const lerpRatio = -(prevZoom - this._zoom) / this._zoom;
                // find the "distance" (aka plane constant in three.js) of Plane
                // from a given position (this._targetEnd) and normal vector (cameraDirection)
                // https://www.maplesoft.com/support/help/maple/view.aspx?path=MathApps%2FEquationOfAPlaneNormal#bkmrk0
                const cameraDirection = this._getCameraDirection(_cameraDirection);
                const prevPlaneConstant = this._targetEnd.dot(cameraDirection);
                const newTargetEnd = _v3A.copy(this._targetEnd).lerp(cursor, lerpRatio);
                const newPlaneConstant = newTargetEnd.dot(cameraDirection);
                // Pull back the camera depth that has moved, to be the camera stationary as zoom
                const pullBack = cameraDirection.multiplyScalar(newPlaneConstant - prevPlaneConstant);
                newTargetEnd.sub(pullBack);
                // target position may be moved beyond boundary.
                this._boundary.clampPoint(newTargetEnd, newTargetEnd);
                const targetEndDiff = _v3B.subVectors(newTargetEnd, this._targetEnd);
                this._targetEnd.copy(newTargetEnd);
                this._target.add(targetEndDiff);
                // this._target.copy( this._targetEnd );
                this._changedZoom -= dollyControlAmount;
                if (approxZero(this._changedZoom))
                    this._changedZoom = 0;
            }
        }
        if (this._camera.zoom !== this._zoom) {
            this._camera.zoom = this._zoom;
            this._camera.updateProjectionMatrix();
            this._updateNearPlaneCorners();
            this._needsUpdate = true;
        }
        this._dragNeedsUpdate = true;
        // collision detection
        const maxDistance = this._collisionTest();
        this._spherical.radius = Math.min(this._spherical.radius, maxDistance);
        // decompose spherical to the camera position
        this._spherical.makeSafe();
        this._camera.position.setFromSpherical(this._spherical).applyQuaternion(this._yAxisUpSpaceInverse).add(this._target);
        this._camera.lookAt(this._target);
        // set offset after the orbit movement
        const affectOffset = !approxZero(this._focalOffset.x) ||
            !approxZero(this._focalOffset.y) ||
            !approxZero(this._focalOffset.z);
        if (affectOffset) {
            this._camera.updateMatrixWorld();
            _xColumn.setFromMatrixColumn(this._camera.matrix, 0);
            _yColumn.setFromMatrixColumn(this._camera.matrix, 1);
            _zColumn.setFromMatrixColumn(this._camera.matrix, 2);
            _xColumn.multiplyScalar(this._focalOffset.x);
            _yColumn.multiplyScalar(-this._focalOffset.y);
            _zColumn.multiplyScalar(this._focalOffset.z); // notice: z-offset will not affect in Orthographic.
            _v3A.copy(_xColumn).add(_yColumn).add(_zColumn);
            this._camera.position.add(_v3A);
        }
        if (this._boundaryEnclosesCamera) {
            this._encloseToBoundary(this._camera.position.copy(this._target), _v3A.setFromSpherical(this._spherical).applyQuaternion(this._yAxisUpSpaceInverse), 1.0);
        }
        const updated = this._needsUpdate;
        if (updated && !this._updatedLastTime) {
            this._hasRested = false;
            this.dispatchEvent({ type: 'wake' });
            this.dispatchEvent({ type: 'update' });
        }
        else if (updated) {
            this.dispatchEvent({ type: 'update' });
            if (approxZero(deltaTheta, this.restThreshold) &&
                approxZero(deltaPhi, this.restThreshold) &&
                approxZero(deltaRadius, this.restThreshold) &&
                approxZero(deltaTarget.x, this.restThreshold) &&
                approxZero(deltaTarget.y, this.restThreshold) &&
                approxZero(deltaTarget.z, this.restThreshold) &&
                approxZero(deltaOffset.x, this.restThreshold) &&
                approxZero(deltaOffset.y, this.restThreshold) &&
                approxZero(deltaOffset.z, this.restThreshold) &&
                approxZero(deltaZoom, this.restThreshold) &&
                !this._hasRested) {
                this._hasRested = true;
                this.dispatchEvent({ type: 'rest' });
            }
        }
        else if (!updated && this._updatedLastTime) {
            this.dispatchEvent({ type: 'sleep' });
        }
        this._lastDistance = this._spherical.radius;
        this._lastZoom = this._zoom;
        this._updatedLastTime = updated;
        this._needsUpdate = false;
        return updated;
    }
    /**
     * Get all state in JSON string
     * @category Methods
     */
    toJSON() {
        return JSON.stringify({
            enabled: this._enabled,
            minDistance: this.minDistance,
            maxDistance: infinityToMaxNumber(this.maxDistance),
            minZoom: this.minZoom,
            maxZoom: infinityToMaxNumber(this.maxZoom),
            minPolarAngle: this.minPolarAngle,
            maxPolarAngle: infinityToMaxNumber(this.maxPolarAngle),
            minAzimuthAngle: infinityToMaxNumber(this.minAzimuthAngle),
            maxAzimuthAngle: infinityToMaxNumber(this.maxAzimuthAngle),
            smoothTime: this.smoothTime,
            draggingSmoothTime: this.draggingSmoothTime,
            dollySpeed: this.dollySpeed,
            truckSpeed: this.truckSpeed,
            dollyToCursor: this.dollyToCursor,
            verticalDragToForward: this.verticalDragToForward,
            target: this._targetEnd.toArray(),
            position: _v3A.setFromSpherical(this._sphericalEnd).add(this._targetEnd).toArray(),
            zoom: this._zoomEnd,
            focalOffset: this._focalOffsetEnd.toArray(),
            target0: this._target0.toArray(),
            position0: this._position0.toArray(),
            zoom0: this._zoom0,
            focalOffset0: this._focalOffset0.toArray(),
        });
    }
    /**
     * Reproduce the control state with JSON. enableTransition is where anim or not in a boolean.
     * @param json
     * @param enableTransition
     * @category Methods
     */
    fromJSON(json, enableTransition = false) {
        const obj = JSON.parse(json);
        this.enabled = obj.enabled;
        this.minDistance = obj.minDistance;
        this.maxDistance = maxNumberToInfinity(obj.maxDistance);
        this.minZoom = obj.minZoom;
        this.maxZoom = maxNumberToInfinity(obj.maxZoom);
        this.minPolarAngle = obj.minPolarAngle;
        this.maxPolarAngle = maxNumberToInfinity(obj.maxPolarAngle);
        this.minAzimuthAngle = maxNumberToInfinity(obj.minAzimuthAngle);
        this.maxAzimuthAngle = maxNumberToInfinity(obj.maxAzimuthAngle);
        this.smoothTime = obj.smoothTime;
        this.draggingSmoothTime = obj.draggingSmoothTime;
        this.dollySpeed = obj.dollySpeed;
        this.truckSpeed = obj.truckSpeed;
        this.dollyToCursor = obj.dollyToCursor;
        this.verticalDragToForward = obj.verticalDragToForward;
        this._target0.fromArray(obj.target0);
        this._position0.fromArray(obj.position0);
        this._zoom0 = obj.zoom0;
        this._focalOffset0.fromArray(obj.focalOffset0);
        this.moveTo(obj.target[0], obj.target[1], obj.target[2], enableTransition);
        _sphericalA.setFromVector3(_v3A.fromArray(obj.position).sub(this._targetEnd).applyQuaternion(this._yAxisUpSpace));
        this.rotateTo(_sphericalA.theta, _sphericalA.phi, enableTransition);
        this.dollyTo(_sphericalA.radius, enableTransition);
        this.zoomTo(obj.zoom, enableTransition);
        this.setFocalOffset(obj.focalOffset[0], obj.focalOffset[1], obj.focalOffset[2], enableTransition);
        this._needsUpdate = true;
    }
    /**
     * Attach all internal event handlers to enable drag control.
     * @category Methods
     */
    connect(domElement) {
        if (this._domElement) {
            console.warn('camera-controls is already connected.');
            return;
        }
        domElement.setAttribute('data-camera-controls-version', VERSION);
        this._addAllEventListeners(domElement);
        this._getClientRect(this._elementRect);
    }
    /**
     * Detach all internal event handlers to disable drag control.
     */
    disconnect() {
        this.cancel();
        this._removeAllEventListeners();
        if (this._domElement) {
            this._domElement.removeAttribute('data-camera-controls-version');
            this._domElement = undefined;
        }
    }
    /**
     * Dispose the cameraControls instance itself, remove all eventListeners.
     * @category Methods
     */
    dispose() {
        // remove all user event listeners
        this.removeAllEventListeners();
        // remove all internal event listeners
        this.disconnect();
    }
    // it's okay to expose public though
    _getTargetDirection(out) {
        // divide by distance to normalize, lighter than `Vector3.prototype.normalize()`
        return out.setFromSpherical(this._spherical).divideScalar(this._spherical.radius).applyQuaternion(this._yAxisUpSpaceInverse);
    }
    // it's okay to expose public though
    _getCameraDirection(out) {
        return this._getTargetDirection(out).negate();
    }
    _findPointerById(pointerId) {
        return this._activePointers.find((activePointer) => activePointer.pointerId === pointerId);
    }
    _findPointerByMouseButton(mouseButton) {
        return this._activePointers.find((activePointer) => activePointer.mouseButton === mouseButton);
    }
    _disposePointer(pointer) {
        this._activePointers.splice(this._activePointers.indexOf(pointer), 1);
    }
    _encloseToBoundary(position, offset, friction) {
        const offsetLength2 = offset.lengthSq();
        if (offsetLength2 === 0.0) { // sanity check
            return position;
        }
        // See: https://twitter.com/FMS_Cat/status/1106508958640988161
        const newTarget = _v3B.copy(offset).add(position); // target
        const clampedTarget = this._boundary.clampPoint(newTarget, _v3C); // clamped target
        const deltaClampedTarget = clampedTarget.sub(newTarget); // newTarget -> clampedTarget
        const deltaClampedTargetLength2 = deltaClampedTarget.lengthSq(); // squared length of deltaClampedTarget
        if (deltaClampedTargetLength2 === 0.0) { // when the position doesn't have to be clamped
            return position.add(offset);
        }
        else if (deltaClampedTargetLength2 === offsetLength2) { // when the position is completely stuck
            return position;
        }
        else if (friction === 0.0) {
            return position.add(offset).add(deltaClampedTarget);
        }
        else {
            const offsetFactor = 1.0 + friction * deltaClampedTargetLength2 / offset.dot(deltaClampedTarget);
            return position
                .add(_v3B.copy(offset).multiplyScalar(offsetFactor))
                .add(deltaClampedTarget.multiplyScalar(1.0 - friction));
        }
    }
    _updateNearPlaneCorners() {
        if (isPerspectiveCamera(this._camera)) {
            const camera = this._camera;
            const near = camera.near;
            const fov = camera.getEffectiveFOV() * DEG2RAD;
            const heightHalf = Math.tan(fov * 0.5) * near; // near plain half height
            const widthHalf = heightHalf * camera.aspect; // near plain half width
            this._nearPlaneCorners[0].set(-widthHalf, -heightHalf, 0);
            this._nearPlaneCorners[1].set(widthHalf, -heightHalf, 0);
            this._nearPlaneCorners[2].set(widthHalf, heightHalf, 0);
            this._nearPlaneCorners[3].set(-widthHalf, heightHalf, 0);
        }
        else if (isOrthographicCamera(this._camera)) {
            const camera = this._camera;
            const zoomInv = 1 / camera.zoom;
            const left = camera.left * zoomInv;
            const right = camera.right * zoomInv;
            const top = camera.top * zoomInv;
            const bottom = camera.bottom * zoomInv;
            this._nearPlaneCorners[0].set(left, top, 0);
            this._nearPlaneCorners[1].set(right, top, 0);
            this._nearPlaneCorners[2].set(right, bottom, 0);
            this._nearPlaneCorners[3].set(left, bottom, 0);
        }
    }
    // lateUpdate
    _collisionTest() {
        let distance = Infinity;
        // const hasCollider = this.colliderMeshes.length >= 1;
        // if ( ! hasCollider ) return distance;
        // if ( notSupportedInOrthographicCamera( this._camera, '_collisionTest' ) ) return distance;
        // const rayDirection = this._getTargetDirection( _cameraDirection );
        // _rotationMatrix.lookAt( _ORIGIN, rayDirection, this._camera.up );
        // for ( let i = 0; i < 4; i ++ ) {
        // 	const nearPlaneCorner = _v3B.copy( this._nearPlaneCorners[ i ] );
        // 	nearPlaneCorner.applyMatrix4( _rotationMatrix );
        // 	const origin = _v3C.addVectors( this._target, nearPlaneCorner );
        // 	_raycaster.set( origin, rayDirection );
        // 	_raycaster.far = this._spherical.radius + 1;
        // 	const intersects = _raycaster.intersectObjects( this.colliderMeshes );
        // 	if ( intersects.length !== 0 && intersects[ 0 ].distance < distance ) {
        // 		distance = intersects[ 0 ].distance;
        // 	}
        // }
        return distance;
    }
    _collisionTestTarget(targetOriginal, targetDelta) {
        const hasCollider = this.colliderMeshes.length >= 1;
        if (!hasCollider || !this.enableCollisions)
            return false;
        if (notSupportedInOrthographicCamera(this._camera, '_collisionTestTarget'))
            return false;
        // _v3A.copy( targetDelta ).normalize();
        _v3A.copy(targetDelta);
        _raycaster.set(targetOriginal, _v3A);
        _raycaster.far = this._spherical.radius + 1;
        const intersects = _raycaster.intersectObjects(this.colliderMeshes, false);
        const distance = targetDelta.length();
        if (intersects.length !== 0 && intersects[0].distance < distance) {
            // _v3A.copy( targetDelta );
            const factor = intersects[0].distance / distance;
            const delta = _v3A.multiplyScalar(factor - 1);
            this._targetEnd.copy(this._target).add(delta);
            return true;
        }
        return false;
    }
    /**
     * Get its client rect and package into given `DOMRect` .
     */
    _getClientRect(target) {
        if (!this._domElement)
            return;
        const rect = this._domElement.getBoundingClientRect();
        target.x = rect.left;
        target.y = rect.top;
        if (this._viewport) {
            target.x += this._viewport.x;
            target.y += rect.height - this._viewport.w - this._viewport.y;
            target.width = this._viewport.z;
            target.height = this._viewport.w;
        }
        else {
            target.width = rect.width;
            target.height = rect.height;
        }
        return target;
    }
    _createOnRestPromise(resolveImmediately) {
        if (resolveImmediately)
            return Promise.resolve();
        this._hasRested = false;
        this.dispatchEvent({ type: 'transitionstart' });
        return new Promise((resolve) => {
            const onResolve = () => {
                this.removeEventListener('rest', onResolve);
                resolve();
            };
            this.addEventListener('rest', onResolve);
        });
    }
    // eslint-disable-next-line @typescript-eslint/no-unused-vars
    _addAllEventListeners(_domElement) { }
    _removeAllEventListeners() { }
    /**
     * backward compatible
     * @deprecated use smoothTime (in seconds) instead
     * @category Properties
     */
    get dampingFactor() {
        console.warn('.dampingFactor has been deprecated. use smoothTime (in seconds) instead.');
        return 0;
    }
    /**
     * backward compatible
     * @deprecated use smoothTime (in seconds) instead
     * @category Properties
     */
    set dampingFactor(_) {
        console.warn('.dampingFactor has been deprecated. use smoothTime (in seconds) instead.');
    }
    /**
     * backward compatible
     * @deprecated use draggingSmoothTime (in seconds) instead
     * @category Properties
     */
    get draggingDampingFactor() {
        console.warn('.draggingDampingFactor has been deprecated. use draggingSmoothTime (in seconds) instead.');
        return 0;
    }
    /**
     * backward compatible
     * @deprecated use draggingSmoothTime (in seconds) instead
     * @category Properties
     */
    set draggingDampingFactor(_) {
        console.warn('.draggingDampingFactor has been deprecated. use draggingSmoothTime (in seconds) instead.');
    }
    static createBoundingSphere(object3d, out = new THREE.Sphere()) {
        const boundingSphere = out;
        const center = boundingSphere.center;
        _box3A.makeEmpty();
        // find the center
        object3d.traverseVisible((object) => {
            if (!object.isMesh)
                return;
            _box3A.expandByObject(object);
        });
        _box3A.getCenter(center);
        // find the radius
        let maxRadiusSq = 0;
        object3d.traverseVisible((object) => {
            if (!object.isMesh)
                return;
            const mesh = object;
            const geometry = mesh.geometry.clone();
            geometry.applyMatrix4(mesh.matrixWorld);
            const bufferGeometry = geometry;
            const position = bufferGeometry.attributes.position;
            for (let i = 0, l = position.count; i < l; i++) {
                _v3A.fromBufferAttribute(position, i);
                maxRadiusSq = Math.max(maxRadiusSq, center.distanceToSquared(_v3A));
            }
        });
        boundingSphere.radius = Math.sqrt(maxRadiusSq);
        return boundingSphere;
    }
}

exports.ACTION = ACTION;
exports.EventDispatcher = EventDispatcher;
exports.MOUSE_BUTTON = MOUSE_BUTTON;
exports.default = CameraControls;