I have been playing arround with the simpleParticleEmitter example in processing. I changed the behaviour of the particles so that they react depending on how the other particles are distributed over the screen.

The problem I have is that only that particle furthest away from a certain point should move.

p = particle
change = function returning a movement Vector

void run() {
   float max_dist = 0.00;
   for (int i = particles.size()-1; i >0; i--) {
     Particle p = (Particle) particles.get(i);
     if (p.p_dist > max_dist) {max_dist = p.p_dist;}
   }

   particles_cou = 0;
   for (int i = 0;particles.size() > i; i++) {
     Particle p = (Particle) particles.get(i);
     if (p.p_dist >= max_dist) {p.run(change(p));}
   }
 }

this gets called from draw()

void draw() {
 ps.run();
}

When executing this code it doesn't always start with the furthest away. when I increase the frame rate the mistake gets worse.

Doesn't the draw function wait until the run part is completely executed ?


tHX for the Help

Richard