Function countAll

packages/melonjs/tests/quadtree.spec.js:953–959

(node)

		 * remove pass, this must return 0.
		 */
		const countAll = (node) => {
			let n = node.objects.length;
			for (const sub of node.nodes) {
				n += countAll(sub);
			}
			return n;
		};

		/**
		 * Walk the tree and return the maximum depth that contains