//////Interactive Toy - AESTHETIC DISCO BALL -  by Liz Zhang//////
///This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
////////http://creativecommons.org/licenses/by-sa/3.0/deed.en_US

void setup() {
size(400, 800);
frameRate(60);
 
xx=300;
yy=50;
 
  ballXSpeed=1;
  ballYSpeed=1;
}
 
void draw() {
 
//////Setting up the background// Making an aesthetically pleasing coral toned gradient
noStroke();
fill(255,240,237);
rectMode(CORNERS);
rect(0,750,400,800);
noStroke();
fill(255,225,219);
rectMode(CORNERS);
rect(0,700,400,750);
noStroke();
fill(255,212,203);
rectMode(CORNERS);
rect(0,650,400,700);
noStroke();
fill(255,193,180);
rectMode(CORNERS);
rect(0,600,400,650);
noStroke();
fill(255,173,157);
rectMode(CORNERS);
rect(0,550,400,600); 
noStroke();
fill(255,163,144);
rectMode(CORNERS);
rect(0,500,400,550);
noStroke();
fill(255,150,129);
rectMode(CORNERS);
rect(0,450,400,500);
noStroke();
fill(255,139,116);
rectMode(CORNERS);
rect(0,400,400,450);
noStroke();
fill(255,126,100);
rectMode(CORNERS);
rect(0,350,400,400);
noStroke();
fill(255,116,88);
rectMode(CORNERS);
rect(0,300,400,350);
noStroke();
fill(255,105,75);
rectMode(CORNERS);
rect(0,250,400,300);
noStroke();
fill(255,97,62);
rectMode(CORNERS);
rect(0,200,400,250);
noStroke();
fill(255,94,62);
rectMode(CORNERS);
rect(0,150,400,200);
noStroke();
fill(255,83,49);
rectMode(CORNERS);
rect(0,100,400,150);
noStroke();
fill(255,77,41);
rectMode(CORNERS);
rect(0,50,400,100);
noStroke();
fill(255,60,21);
rectMode(CORNERS);
rect(0,0,400,50);

/////////////// Disco Ball ///////////
//////////// Making the ball and it's random colour flashing //////////
 
  r=random(0, 255);
  g=random(100, 255);
  b=random(50, 200);
  fill(r, g, b);
ellipseMode(CENTER);
  ellipse(xx, yy, 100,100);
  
  //////// Keep the ball from bouncing out of bounds 
 
  if (xx>width-12) {
    ballXSpeed = ballXSpeed * -.5;
    xx=width-12;
  }
else if (xx<12) {
ballXSpeed = ballXSpeed * -.5;
xx=12;
  }
 if (yy>height-12) {
    ballYSpeed = ballYSpeed * -.9;
    yy=height-12;
  }
 
//////// Add speed to the ball
 
yy = yy + ballYSpeed;
xx = xx + ballXSpeed;
 
////// Gravity increases with the speed of the ball
 
ballYSpeed = ballYSpeed + gravity;
 
//////// Make sure the ball will always bounce
 
if (yy > height) {
ballYSpeed = ballYSpeed * -0.30;
yy = constrain(yy, 0, 800);
xx = constrain(xx, 0, 800);
  }
 
///////////Ball follows mouse when pressed with acceleration
 
if (mousePressed) {
ballYSpeed+=-.08;
if (mouseX>xx) {
ballXSpeed+=.05;
    }
 
    else if (mouseX<xx) {
      ballXSpeed+=-.05;
    }
  }
}

///// locations and speed of the ball at these locations
float xx = 300;      
float yy = 0;       
float ballXSpeed;   
float ballYSpeed;    
float r;
float g;
float b;
float gravity = 0.25;