public void addResource(int amount, Resource res) {
		String r = res.toString();
		if (amount <= 0) {
			System.out.println("Cannot add negative resources");
			return;
		}
		if (r.equals("Metal")) {
			Metal += amount;
			return;
		}if (r.equals("Wood")) {
			Wood += amount;
			return;
		}if (r.equals("Food")) {
			Food += amount;
			return;
		}if (r.equals("Water")) {
			Water += amount;
			return;
		}if (r.equals("Stone")) {
			Stone += amount;
			return;
		}
	}