playcanvas/build/playcanvas.prf/src/scene/batching/batch.js

PlayCanvas WebGL game engine

import { BoundingBox } from '../../core/shape/bounding-box.js';

class Batch {
		constructor(meshInstances, dynamic, batchGroupId){
				this._aabb = new BoundingBox();
				this.meshInstance = null;
				this.origMeshInstances = meshInstances;
				this.dynamic = dynamic;
				this.batchGroupId = batchGroupId;
		}
		destroy(scene, layers) {
				if (this.meshInstance) {
						this.removeFromLayers(scene, layers);
						this.meshInstance.destroy();
						this.meshInstance = null;
				}
		}
		addToLayers(scene, layers) {
				for(let i = 0; i < layers.length; i++){
						const layer = scene.layers.getLayerById(layers[i]);
						if (layer) {
								layer.addMeshInstances([
										this.meshInstance
								]);
						}
				}
		}
		removeFromLayers(scene, layers) {
				for(let i = 0; i < layers.length; i++){
						const layer = scene.layers.getLayerById(layers[i]);
						if (layer) {
								layer.removeMeshInstances([
										this.meshInstance
								]);
						}
				}
		}
		updateBoundingBox() {
				this._aabb.copy(this.origMeshInstances[0].aabb);
				for(let i = 1; i < this.origMeshInstances.length; i++){
						this._aabb.add(this.origMeshInstances[i].aabb);
				}
				this.meshInstance.aabb = this._aabb;
				this.meshInstance._aabbVer = 0;
		}
		get model() {
				return undefined;
		}
}

export { Batch };