public void print() {
		String s = "";
		for (int x = 0; x < gridSize; x++) {
			s += x;
			for (int y = 0; y < gridSize; y++) {
				switch(getSlot(x, y)) {
				case EMPTY:
					s += " E ";
					break;
				case FOOD:
					s += " F ";
					break;
				case SNAKE:
					s += " S ";
					break;
				default:
					s += "   ";
					break;
				}
			}
			s += "\n";
		}
		System.out.println(s);
	}