void move() {
		switch(dir) {
		case U:
			y -= Y_SPEED;
			break;
		case D:
			y += Y_SPEED;
			break;
		case L:
			x -= X_SPEED;
			break;
		case R:
			x += Y_SPEED;
			break;
		case LU:
			x -= X_SPEED;
			y -= Y_SPEED;
			break;
		case RU:
			x += X_SPEED;
			y -= Y_SPEED;
			break;
		case LD:
			x -= X_SPEED;
			y += Y_SPEED;
			break;
		case RD:
			x += X_SPEED;
			y += Y_SPEED;
			break;
		default:
			
		}
	}