//written by Daniel Sauter
//2007
// modified by AnnMarie Cernoch

int num = 10; // number of objects
int[] posX = new int[num];
int[] posY = new int[num];
int[] speedX = new int[num];
int[] speedY = new int[num];
boolean col;
int k = 0;

void avoidSetup() {
  size(400, 700);
  noStroke();
  for (int i = 0; i < num; i++) { // shuffle initial positions and direction
    speedX[i] = int(random(1)+1);
    speedY[i] = int(random(.5)+1);
    posX[i] = int(width/2);
    posY[i] = int(random(height-30))+10;
  }
}
void avoidDraw() {
  background(50);
  pushMatrix();
  for (int i = 0; i < num; i++) {
    posX[i]+=speedX[i];
    posY[i]+=speedY[i];
    for (int j = 0; j < num; j++) {
      if (dist(posX[i], posY[i], posX[j], posY[j]) < 20 && j != i) {
        speedX[i]=-speedX[i];
        speedX[j]=-speedX[j];
      }
    }
    if (posX[i] > width/2 || posX[i] < width/2) {
      speedX[i]=-speedX[i];
    }
    if (posY[i] > height || posY[i] < 0) {//|| posY[i] < 0
      // posY[i] = 0;
      speedY[i]=-speedY[i];
    }
    fill(255,0,0);

    ellipse(posX[i], posY[i], 2,2);
    //model.draw();
   
  }
  popMatrix();
  //---------------------------------------------------------------------------
  /* translate(100,0);
   pushMatrix();
   for (int i = 0; i < num; i++) {
   posX[i]+=speedX[i];
   posY[i]+=speedY[i];
   for (int j = 0; j < num; j++) {
   if (dist(posX[i], posY[i], posX[j], posY[j]) < 20 && j != i) {
   speedX[i]=-speedX[i];
   speedX[j]=-speedX[j];
   }
   }
   if (posX[i] > width/2 || posX[i] < width/2) {
   speedX[i]=-speedX[i];
   }
   if (posY[i] > height || posY[i] < 0) {//|| posY[i] < 0
   // posY[i] = 0;
   speedY[i]=-speedY[i];
   }
   fill(255,0,0);
   
   ellipse(posX[i], posY[i], 2,2);
   }
   popMatrix();
   */
}
void mousePressed()
{
  setup();
}