Beware, it's alive!

///////////////////////////////////////////////////////

//click on the screen to create little balls

//right-click on ball to delete it

//the balls will immediatelly start reacting with each other

//they avoid each other, but are attracted to the "team"

//up/down controlls the attractor bar (top)

//left/right controls the avoidance bar.

//TAB = pause

///////////////////////////////////////////////////////

​

//global variables declaration

ArrayList balls;

Intrface game;

float midx, midy;

float br; //ball radius

color bkgcolor;

color dotcolor;

color linecolor;

color centerstroke;

color centercolor;

int ballslimit;

float rnd;//random value (how random)

boolean paused;

float pos_power, neg_power;

​

//init variables etc.

void setup(){

  colorMode(RGB,255,255,255,100);

  game = new Intrface(800,600,60);

  paused = false;

  bkgcolor = color (0,0,0,100);

  dotcolor = color (255,0,255,90);

  linecolor = color(255,255,255,5);

  centercolor = color (200,64,64,60);

  rnd = 0.0;

  br = 10;

  pos_power = 0.4; // 0.01 to 0.9

  neg_power = 300; // 30 to 300

  ballslimit = 60;

  balls = new ArrayList();

  balls.add(new Ball(width/2, height/2));

}

​

void draw(){

  game.displaybkg();

  //calculate the middle of the group

  midx = 0;

  midy = 0;

  pos_power = game.pos_power;

  neg_power = game.neg_power;

  for (int i = balls.size()-1; i >= 0; i--) { 

    Ball ball = (Ball) balls.get(i);

    midx += ball.xpos;

    midy += ball.ypos;

  }

  midx /= balls.size();

  midy /= balls.size();

  /*if (midx>mouseX) midx -= (midx-mouseX)/10;

  if (midx<mouseX) midx += (mouseX-midx)/10;

  if (midy>mouseY) midy -= (midy-mouseY)/10;

  if (midy<mouseY) midy += (mouseY-midy)/10;*/

  for (int i = balls.size()-1; i >= 0; i--) {

    Ball ball = (Ball) balls.get(i);

    if ((!paused)&(balls.size() >1)) ball.move(midx,midy,true);

    //if ((!paused)&(balls.size() >1)) ball.move(mouseX,mouseY,true);

    for (int j = balls.size()-1; j >= 0; j--) {

      Ball bill = (Ball) balls.get(j);

      if ((!paused)&(balls.size() >1)&(ball.xpos != bill.xpos)) ball.move(bill.xpos,bill.ypos,false);

      stroke(linecolor);

      line(ball.xpos,ball.ypos,bill.xpos,bill.ypos);

    }

  ball.display();

  }

  noStroke();

  fill(centercolor);

  arc(midx, midy,br,br,0,2*PI);

  game.displaybars();

}

​

​

​