/******************************************************************************
 * Spine Runtimes License Agreement
 * Last updated July 28, 2023. Replaces all prior versions.
 *
 * Copyright (c) 2013-2023, Esoteric Software LLC
 *
 * Integration of the Spine Runtimes into software or otherwise creating
 * derivative works of the Spine Runtimes is permitted under the terms and
 * conditions of Section 2 of the Spine Editor License Agreement:
 * http://esotericsoftware.com/spine-editor-license
 *
 * Otherwise, it is permitted to integrate the Spine Runtimes into software or
 * otherwise create derivative works of the Spine Runtimes (collectively,
 * "Products"), provided that each user of the Products must obtain their own
 * Spine Editor license and redistribution of the Products in any form must
 * include this license and copyright notice.
 *
 * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
 * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THE
 * SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *****************************************************************************/
import { TextureRegion } from "../Texture.js";
import { Color, NumberArrayLike } from "../Utils.js";
import { VertexAttachment, Attachment } from "./Attachment.js";
import { HasTextureRegion } from "./HasTextureRegion.js";
import { Sequence } from "./Sequence.js";
import { Slot } from "../Slot.js";
/** An attachment that displays a textured mesh. A mesh has hull vertices and internal vertices within the hull. Holes are not
 * supported. Each vertex has UVs (texture coordinates) and triangles are used to map an image on to the mesh.
 *
 * See [Mesh attachments](http://esotericsoftware.com/spine-meshes) in the Spine User Guide. */
export declare class MeshAttachment extends VertexAttachment implements HasTextureRegion {
    region: TextureRegion | null;
    /** The name of the texture region for this attachment. */
    path: string;
    /** The UV pair for each vertex, normalized within the texture region. */
    regionUVs: NumberArrayLike;
    /** The UV pair for each vertex, normalized within the entire texture.
     *
     * See {@link #updateUVs}. */
    uvs: NumberArrayLike;
    /** Triplets of vertex indices which describe the mesh's triangulation. */
    triangles: Array<number>;
    /** The color to tint the mesh. */
    color: Color;
    /** The width of the mesh's image. Available only when nonessential data was exported. */
    width: number;
    /** The height of the mesh's image. Available only when nonessential data was exported. */
    height: number;
    /** The number of entries at the beginning of {@link #vertices} that make up the mesh hull. */
    hullLength: number;
    /** Vertex index pairs describing edges for controling triangulation. Mesh triangles will never cross edges. Only available if
     * nonessential data was exported. Triangulation is not performed at runtime. */
    edges: Array<number>;
    private parentMesh;
    sequence: Sequence | null;
    tempColor: Color;
    constructor(name: string, path: string);
    /** Calculates {@link #uvs} using the {@link #regionUVs} and region. Must be called if the region, the region's properties, or
     * the {@link #regionUVs} are changed. */
    updateRegion(): void;
    /** The parent mesh if this is a linked mesh, else null. A linked mesh shares the {@link #bones}, {@link #vertices},
     * {@link #regionUVs}, {@link #triangles}, {@link #hullLength}, {@link #edges}, {@link #width}, and {@link #height} with the
     * parent mesh, but may have a different {@link #name} or {@link #path} (and therefore a different texture). */
    getParentMesh(): MeshAttachment | null;
    /** @param parentMesh May be null. */
    setParentMesh(parentMesh: MeshAttachment): void;
    copy(): Attachment;
    computeWorldVertices(slot: Slot, start: number, count: number, worldVertices: NumberArrayLike, offset: number, stride: number): void;
    /** Returns a new mesh with the {@link #parentMesh} set to this mesh's parent mesh, if any, else to this mesh. **/
    newLinkedMesh(): MeshAttachment;
}