float x = 50;
float y = 50;
float w = 700;
float h = 400;

//Balls 
Ball redBonilla, greenBonilla, blueBonilla; 
//Buttons 
Button rButton, gButton, bButton;
void setup() {
  size(800,500);
 
  /// 3 balls 
  redBonilla= new Ball(255,0,0);
  blueBonilla= new Ball(0,0,255);
  greenBonilla= new Ball(0,255,0);
  redBonilla.rballs();
  blueBonilla.rballs();
  greenBonilla.rballs(); 
  ///buttons 
   rButton= new Button(5,50,50,50);
   rButton.r=255;
   rButton.g=0;
   rButton.b=0;
   gButton= new Button(5,50,50,50);
   gButton.r=0;
   gButton.g=255;
   gButton.b=0;
   bButton= new Button(5,50*3,50,50);
   
}

void draw(){
  background(167,108,34);
  msgs();
  pooltable();
  moveBalls();
  drawBalls();
  rButton.show();
  gButton.show();
  bButton.show();
}

void msgs(){
  //title
  fill(0);
  textSize(20);
  text( " Project 8" , width/2 - 50, 30); 
  //author 
  text(" Hugo Bonilla", 20, height -20); 
}
  
void drawBalls(){
//draws balls on screen 
 redBonilla.show(); 
 greenBonilla.show();
 blueBonilla.show();
}
void moveBalls(){
  redBonilla.move(); 
  blueBonilla.move();
  greenBonilla.move();
}
void pooltable(){ 
  //border 
  stroke(9,48,129);
  strokeWeight(25);
  //table
  fill(60,159,219);
  rect(x,y,w,h);
  
}

class Ball {
  // billiard ball
  color c;
  float x= 75, y= 75; // ball position 
  float dx= 5,dy= 5;  // ball velocity 
  
  /////CONSTRUCTORS/////
  
  Ball ( int r, int g, int b) { 
    // set colors RGB/ red,reen,blue 
  c= color (r ,g ,b);
  } 
  Ball () {
  }
  
  ///METHODS/// 
  void move(){
  // moves ball.. changes dx & dy 
  x= x + dx;
  y= y + dy;
  
  // MAKE BALLS COUNCE OFF WALLS 
  if (x < 75) { dx = -dx; x = x+ dx;}
  if (x > 725){ dx = -dx; x = x+ dx;}
  if (y < 75) { dy = -dy; y = y+ dy;}
  if (y > 425){ dy = -dy; y = y+ dy;}
  }
  void show (){
    /// draw ball 
    fill(c);
    noStroke(); 
    ellipseMode(CENTER);
    ellipse(x, y, 25,30);  
  }
  void rballs(){
    //rballs= Random Balls 
    x= 75 + random (75); 
    y= 75 + random (75);
    dx= 5 + random (5);
    dy= 5 + random (5);
  }
  
}

class Button {
  //Button to change balls and table
  int r=255, b= 255, g= 235;
  float bx= 10, by= 50, bw=40 , bh=50;
  
 Button ( float x, float Y, float w, float h){
   bx=x;
   by=y;
   bw=w;
   bh=h;
 }
   
 // METHODS 

  void show(){ 
  // shows button 
  fill(r,g,b);
  stroke(0);
  strokeWeight(1); 
  rect(bx,by,bw,bh);
}
 
}