Question

I have problem with function checking collision. No matter what I do it throws NoSuchElementException. Here it is:

public boolean isColliding(Pixel a) {
    if((a.x + a.size/2 <= x - size/2 &&
        a.x - a.size/2 >= x - size/2 ||
         a.x + a.size/2 <= x + size/2 &&
          a.x - a.size/2 >= x + size/2) &&
      (a.y + a.size/2 <= y - size/2 &&
        a.y - a.size/2 >= y - size/2 ||
         a.y + a.size/2 <= y + size/2 &&
          a.y - a.size/2 >= y + size/2) 
            ) { return true; } else { return false; }
}

Here is whole code:

Main.java

Particle.java

ParticleHandler.java

Pixel.java

Answer 1

Here’s ya problem (Main.java):

for(Iterator<Pixel> iterator2 = pixel.iterator(); iterator2.hasNext();){
    if( iterator != iterator2 ){
        licz.field(iterator2.next());
        try{ 
            if( px.isColliding(iterator2.next())) { temporary++; } 
        } catch(Exception e) { }
    }
}

iterator2.next() is called inside a loop without hasNext() check.

Also this:

if(damnLongCondition) { return true; } else { return false; }

Can (and should) be reduced to:

return damnLongCondition;