Method constructor

packages/spine-plugin/src/Spine.js:114–177

* @param {number} x - the x coordinates of the Spine object * @param {number} y - the y coordinates of the Spine object * @param {object} settings - Configuration parameters for the Spine object * @param {string} [settings.atlasFile] - the name of the atlasFile to be used to create this spine

(x, y, settings)

	 * me.game.world.addChild(spineAlien);
	 */
	constructor(x, y, settings) {
		super(x, y, settings.width, settings.height);

		// ensure plugin was properly registered
		this.plugin = plugin.get(SpinePlugin);
		if (typeof this.plugin === "undefined") {
			throw new Error(
				"Spine plugin: plugin needs to be registered first using plugin.register",
			);
		}
		const renderer = this.plugin.app.renderer;

		/** @ignore */
		this.isWebGL = renderer.WebGLVersion >= 1;

		if (this.isWebGL) {
			this.runtime = spineWebGL;
			// the shared canvas-backed managed context, so all spine GL
			// resources self-restore after a WebGL context loss
			const glContext = getManagedContext(renderer.getCanvas());
			// register the Spine batcher with the melonJS renderer (once)
			if (!renderer.batchers.has("spine")) {
				renderer.addBatcher(new SpineBatcher(renderer), "spine");
			}
			this.spineBatcher = renderer.batchers.get("spine");

			// spine skeleton renderer
			this.skeletonRenderer = new this.runtime.SkeletonRenderer(
				glContext,
				true,
			);

			// debug renderer still uses Spine's own GL pipeline
			this.shapesShader = this.runtime.Shader.newColored(glContext);
			this.shapes = new this.runtime.ShapeRenderer(glContext);
			this.skeletonDebugRenderer = new this.runtime.SkeletonDebugRenderer(
				glContext,
			);
		} else {
			this.runtime = spineCanvas;
			this.skeletonRenderer = new SkeletonRenderer(this.runtime);
		}

		// force anchorPoint to 0,0
		this.anchorPoint.set(0, 0);

		// displaying order
		if (typeof settings.z !== "undefined") {
			this.pos.z = settings.z;
		}

		// used internally when calculating bounds
		this.boneOffset = new Vector2();
		this.boneSize = new Vector2();

		// default mixTime
		this.mixTime = settings.mixTime ?? 0.2;