playcanvas/build/playcanvas/src/scene/texture-atlas.js

PlayCanvas WebGL game engine

import { EventHandler } from '../core/event-handler.js';

class TextureAtlas extends EventHandler {
		constructor(){
				super();
				this._texture = null;
				this._frames = null;
		}
		set texture(value) {
				this._texture = value;
				this.fire('set:texture', value);
		}
		get texture() {
				return this._texture;
		}
		set frames(value) {
				this._frames = value;
				this.fire('set:frames', value);
		}
		get frames() {
				return this._frames;
		}
		setFrame(key, data) {
				let frame = this._frames[key];
				if (!frame) {
						frame = {
								rect: data.rect.clone(),
								pivot: data.pivot.clone(),
								border: data.border.clone()
						};
						this._frames[key] = frame;
				} else {
						frame.rect.copy(data.rect);
						frame.pivot.copy(data.pivot);
						frame.border.copy(data.border);
				}
				this.fire('set:frame', key.toString(), frame);
		}
		removeFrame(key) {
				const frame = this._frames[key];
				if (frame) {
						delete this._frames[key];
						this.fire('remove:frame', key.toString(), frame);
				}
		}
		destroy() {
				if (this._texture) {
						this._texture.destroy();
				}
		}
}

export { TextureAtlas };