bouncing ball color change

int diameter = 50;

​

//distance

int xdistance = diameter/2;

int ydistance = diameter/2;

​

//speed

int xspeed = 10;

int yspeed = 20;

​

//direction

int ydirection = 1;

int xdirection = 1; 

​

​

void setup() {

  size(800, 800);

  background(100);

  fill(150, 109, 255);

  noStroke();

}

void draw() {

  background(100);

  ellipse(xdistance, ydistance, diameter, diameter);

  //rectMode(CENTER);

  //rect(mouseX, height-75, 200, 20);

  xdistance += xspeed*xdirection;

  ydistance += yspeed*ydirection;

​

  //bottom hit

  if (ydistance>height-diameter/2) {

    //if(ydistance>height-100){

    ydirection = -ydirection;

    fill(random(255));

  }

​

  //top hit

  if (ydistance<0+diameter/2) {

    ydirection=-ydirection;

        fill(random(255));

  }

​

  //right hit

  if (xdistance>width-diameter/2) {

    xdirection = -xdirection;

        fill(random(255));

  }

​

  //left hit

  if (xdistance<0+diameter/2) {

    xdirection=-xdirection;

        fill(random(255));

  }

}