// Project 9 by Hugo Bonilla 
//CST-112 
float x = 50;
float y = 50;
float w = 700;
float h = 400;

  //Balls 
  Ball redBonilla, greenBonilla, blueBonilla; 
  //Buttons 
  Button rButton;
  Button [] hugo; 
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 using array  
   hugo = new Button[5];
  // Initialize //
  hugo[1]  = new Button("Red",5,50,50,50); 
  hugo[1].r= 255;
  hugo[1].g=0;
  hugo[1].b=0;
  hugo[2]  = new Button("green",5,150,50,50);
  hugo[2].r=0;
  hugo[2].g=255;
  hugo[2].b=0;
  hugo[3]  = new Button("blue",5,250,50,50);
  hugo[3].r=0;
  hugo[3].g=0;
  hugo[3].b=255;
  hugo[4]  = new Button("table",5,350,50,50);
  hugo[4].r=89;
  hugo[4].g=209;
  hugo[4].b=178;
  //button without array
  /* rButton= new Button(5,50,50,50);
   rButton.r=255;
   rButton.g=0;
   rButton.b=0;
  */

}


void draw(){
  background(167,108,34);
  msgs();
  pooltable();
  moveBalls();
  drawBalls();
  showButtons();
  //rButton.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 showButtons(){
  hugo[1].show();
  hugo[2].show();
  hugo[3].show();
  hugo[4].show();
}
void pooltable(){ 
  //border 
  stroke(9,48,129);
  strokeWeight(25);
  //table
  fill(60,159,219);
  rect(x,y,w,h);
  
}

void mousePressed() {
  // buttons make balls move random & change table color 
  if (hugo[1].isHit(mouseX,mouseY)){
    redBonilla.rballs();
    
}

}
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 x=5; float y=50; float w=50; float h=50;
  //button txt 
  String t= "click";
  
Button ( String txt, float x, float y, float w, float h){
  this.x= x;
  this.y= y;
  this.w= w;
  this.h= h;
  this.t= txt;
 }
   
 // METHODS 

void show(){ 
  // shows button 
  fill(r,g,b);
  stroke(0);
  strokeWeight(1); 
  rect(x,y,w,h);
  
  if (isHit(x,y)){
  fill(233,233,233);
  textSize(13);
  text( t, x+10, y+25);
  } else {
  fill(0);
  textSize(13);
  text( t, x+10, y+25);
  }
}
  boolean isHit( float x, float y){
  //return "true: if (x ,y) is within this butons shape
  return(mouseX > x && mouseX < w+x && mouseY > y && mouseY < h+y);
  }
  }