public void draw() {
		background(0, 0, 0);
		// renderBound();

		t0 = System.nanoTime(); // note current time for the stats

		manager.runColonies();
		manager.runAgents();
		manager.runPhero();
		if (frameCount % 500 == 0) {
			manager.pheroKDTree.optimize();
		}

		displayStats();

	}