{
case RIGHT: right(); break; case LEFT: left(); break; case UP: up(); break; case DOWN: down(); break;
} repaint(); } 
public void up(){ if(spaceY < 3){ pics[spaceY][spaceX] = pics[spaceY+1][spaceX]; pics[spaceY+1][spaceX] = 0; spaceY ++; step ++; } }
