Class: HitContainer

HitContainer()

Hit test container

Constructor

new HitContainer()

Properties:
Name Type Description
sampleCount Number 采样个数，如360代表每隔一度采样一次 - 默认：360
sampleMinAlpha Number 采样像素点阈值，采样的数据为RGBA中的A 范围在0-255 - 默认：0
sampleDist Number 采样衰减距离 - 默认：1像素
Source:
Example
var local = new HitContainer();
local.sampleCount = 720;
local.sampleMinAlpha = 10;
var localSprite = new PIXI.Sprite(res["image_example1"].texture);
localSprite.anchor.set(0.5);
local.addChild(localSprite);
var target = new HitContainer();
var targetSprite = new PIXI.Sprite(res["image_example2"].texture);
targetSprite.anchor.set(0.5);
target.addChild(targetSprite);
local.initBound();
target.initBound();
local.position.set(10,10);
console.log(local.hitTest(target));

Extends

  • PIXI.Container

Methods

(static) _addBoundToMatrix() → {Array}

Add local pixel in to a Matrix.
Source:
Returns:
The matrix after add the local pixel.
Type
Array

(static) _caculateBound(Two-dimensional) → {Array}

Caculate bound area for this in polor coordinate.
Parameters:
Name Type Description
Two-dimensional Number array contains binnary numbers.
Source:
Returns:
An array contains polor coordinate points.
Type
Array

(static) _caculateBoundMatrix() → {Array}

Caculate the matrix base on visible pixel in this container.
Source:
Returns:
Two-dimensional array contains binnary numbers. 1 means visible and 0 means transparent.
Type
Array

(static) _caculateSuerfaceArea() → {Number}

Caculate the area based on pixel.
Source:
Returns:
Area.
Type
Number

(static) _generateMaxEmptyMatrix() → {Array}

Caculate the smallest matrix which can contains both given matrix.
Source:
Returns:
An empty matrix.
Type
Array

(static) _getBoundaryGraphics() → {PIXI.Graphics}

Draw a polygon based on given points in polor coordinate.
Source:
Returns:
Polygon graphic.
Type
PIXI.Graphics

(static) _multiplyMatrix() → {Array}

Matrix 1 and Matrix 2 must have same shape. The method will multiply every item in matrix 1 and 2. This is not Matrix multiplication.
Source:
Returns:
A new matrix which have a same shape with given matrix contains resault.
Type
Array

(static) _polarToPixel(amplitude, phase) → {Point}

Caculate the position in Cartesian coordinate with given point in polar coordinate.
Parameters:
Name Type Description
amplitude Number Amplitude of polar coordinate point.
phase Number Phase of polar coordinate point.
Source:
Returns:
Point in Cartesian coordinate
Type
Point

(static) hitTest() → {Boolean}

检测容器是否碰撞了目标区域
Source:
Returns:
Collision with target area or not
Type
Boolean

(static) initBound()

预处理碰撞检测，这个方法必须在碰撞检测前调用。如果容器的边界发生了变化，需要再次调用
Source:

(static) isInBound()

检测一个全局点是否在边界内
Source:

(static) testHitArea() → {Number}

检测碰撞面积比例
Source:
Returns:
The proportion of hit area.
Type
Number