*** BOUNCING BALL ***

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Idea taken from The Coding Train 

https://youtu.be/LO3Awjn_gyU

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Made by Laura Pisa 

My web: www.sites.google.com/view/frogrammergames

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*/

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​

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let circleX,circleY;

let x,y;

let r,g,b;

let r1=1,g1=1,b1=1;

let rad=25;

​

let lastX=0,lastY=0,newX=0,newY=0;

​

function setup() {

  createCanvas(windowWidth, windowHeight);

  r=random(255);

  g=random(255);

  b=random(255);

  r1=random(3);

  g1=random(3);

  b1=random(3);

  x=random(3,6);

  y=random(3,6);

  circleX=random(rad,width);

  circleY=random(rad,height);

}

​

function draw() {

  if(mouseIsPressed){

    if(mouseX!=newX || mouseY!=newY){

      lastX=newX;

      lastY=newY;

      newX=mouseX;

      newY=mouseY;

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      fill(r,g,b);

      circle(mouseX,mouseY,rad*2);

    }

  background(0,0,0,10);

  }

  else{

​

    noStroke();

    circleX+=x;

    circleY+=y;

​

    if(r>255 || r<0 ){r1*=-1;}

    if(g>255 || g<0 ){g1*=-1;}

    if(b>255 || b<0 ){b1*=-1;}

    r+=r1;

    g+=g1;

    b+=b1;

​

​

    if(circleX>width-rad || circleX<rad){

      x*=-1;

    }

    if(circleY>height-rad || circleY<rad){

      y*=-1;

    }

​

​

    fill(r,g,b);

    circle(circleX,circleY,rad*2);

    background(0,0,0,10);

  }

}

function mouseReleased(){

    x=newX-lastX;

    y=newY-lastY;

    circleX=mouseX;

    circleY=mouseY;

  }

function mousePressed(){

  background(0);

}

​