Bullet runs into issue when collided with more then one enemy

ctrembla

Hey, I'm making a space invaders game & I made a bunch of different kind of bullets the player can use, but when a bullet collides with 2 enemies it gives me a bullet remove error. for (int i = Bullet.size()-1; i >= 0; i--) { bullet bu = Bullet.get(i); bu.show(); bu.move(); for (int j = Enemy.size()-1; j >= 0; j--) { enemy en = Enemy.get(j); float d = dist(bu.x,bu.y,en.x,en.y); if (d < bu.r + en.r){ Bullet.remove(i); en.life -= 1; } } }

anyone know a way to fix it so my bullet ca hit 2 enemies without an error. I think the trouble is that both enemies it collided with are trying to remove it at the same time.

kfrajer

If you want to remove both targets then you should remove the bullet after it has checked all the targets.

boolean triggerRemove=false;
for (int j = Enemy.size()-1; j >= 0; j--){ 
  enemy en = Enemy.get(j); 
  float d = dist(bu.x,bu.y,en.x,en.y); 
  if (d < bu.r + en.r){ 
    //Bullet.remove(i); 
    triggerRemove=true;
    en.life -= 1; 
   } 
}
if(triggerRemove==true){
  Bullet.remove(i); 
}

Kf

GoToLoop

http://Studio.ProcessingTogether.com/sp/pad/export/ro.9NGjx94YMTtlu

http://Studio.ProcessingTogether.com/sp/pad/export/ro.9K-kjhuONcJDZ