playcanvas/build/playcanvas/src/core/object-pool.js

Open-source WebGL/WebGPU 3D engine for the web

class ObjectPool {
	_constructor;
	_pool = [];
	_count = 0;
	constructor(constructorFunc, size) {
		this._constructor = constructorFunc;
		this._resize(size);
	}
	_resize(size) {
		if (size > this._pool.length) {
			for (let i = this._pool.length; i < size; i++) {
				this._pool[i] = new this._constructor();
			}
		}
	}
	allocate() {
		if (this._count >= this._pool.length) {
			this._resize(this._pool.length * 2);
		}
		return this._pool[this._count++];
	}
	freeAll() {
		this._count = 0;
	}
}
export {
	ObjectPool
};