backend/libs/three/renderers/webgl/WebGLAnimation.js

function WebGLAnimation() {
	let context = null;
	let isAnimating = false;
	let animationLoop = null;
	let requestId = null;

	function onAnimationFrame(time, frame) {
		animationLoop(time, frame);

		requestId = context.requestAnimationFrame(onAnimationFrame);
	}

	return {
		start: function () {
			if (isAnimating === true) return;
			if (animationLoop === null) return;

			requestId = context.requestAnimationFrame(onAnimationFrame);

			isAnimating = true;
		},

		stop: function () {
			context?.cancelAnimationFrame(requestId);

			isAnimating = false;
		},

		setAnimationLoop: function (callback) {
			animationLoop = callback;
		},

		setContext: function (value) {
			context = value;
		},
	};
}

export { WebGLAnimation };