return delta;
}
public void drawLevel(){
for(int i=55;i<HEIGHT;i+=20){
walls.add(new Wall(em,10,i,20,20));
}
for(int i=45;i<HEIGHT;i+=20){
walls.add(new Wall(em,WIDTH-10,i+10,20,20));
}
for(int i=0;i<WIDTH;i+=20){
walls.add(new Wall(em,i,55,20,20));
}
for(int i=0;i<WIDTH;i+=20){
walls.add(new Wall(em,i,HEIGHT-10,20,20));
}
}