////Pool table using class
////Valerie Courgis
////Project 5

String title="Bouncing balls - pool table.";
String news="";
String last="";
String author="Valerie Courgis, CST112, Project 5";

int  left=30, top=60, right= 630,   bottom= 460;
int  many=0, toomany=20;        // Number of Balls
int score = 0;

Ball val;
Ball[] school;
Button b1;
Player b2;

void setup() {
  ////setup screen size and reset.
  size(right+100, bottom+140);
  reset();
}

void reset() {
  ////Create new balls
 val=  new Ball();
 val.number=  "Val"; ////number it
 
 school=  new Ball[toomany];
          for (int j=0; j<toomany; j++) {
          school[j]=  new Ball( j+"" );
}
   b1=  new Button();
   b2=  new Player();

   news="r to reset; q to quit; ? for help.";
   title="Practice project #5 // Ball on Pool Table.  max="+toomany;
}

void draw() {
  ////Scene, Next Frame, move the balls, then draw.
  background(100,155,255); ////blue sky .
  scene();
  showAll();
  messages();
  action();
  check();        
  pockets();
  if (key == '?') {
            help();
          } else {
            action();    // Move ball, check collisions, etc.
          }
}

void scene() {
  ////draw Pool Table 
  background( 100, 250, 255 );
  text( title, width/4, 20 );
  textSize(14);
  text( news, 30+width/4, 35 );
  text( many+" ball", width-50, 40 );
  fill(0,155,0);   //// Pool table color
  stroke(5);
  strokeWeight(15);
  rectMode(CORNERS);
  rect(left,top,right,bottom); //table.
  text( "SCORE:  "+score, width-80, 20 );

  
}

 void showAll() {
        // Show balls etc. 
        b1.show();  
        b2.show();      
        val.show();    
        for (int j=0; j<many; j++) {
            school[j].show(); 
        }
 }      
void messages() {
  //// messages.
  stroke(0);
  fill(0);
  text( author, 20, height-15 );
  fill(155,0,0);
}

void action() {
  //// Move all balls. ////
  if (key == '?') {
    help();
   return;
  }
  val.move();
  for (int j=0; j<many; j++) {
     school[j].move(); 
  }
}


void check() {
    // Check for collisions
    for (int i=0; i < many; i++) {
    if ( val.gotHit(val.x, val.y, val.diameter,
            school[i].x, school[i].y, school[i].diameter)) {
      // collision detected!
      background(255,0,0);   
      score += 10;
     // Flash red
      news=  "Val got hit!";
      val.w *= 0.85;                          // SHRINK!!
    } 
  }
}

    
void show() {
  ////show all balls
  b2.show();
  val.show();
for (int j=0; j<many; j++) {
     school[j].show(); 
       }
}

void pockets() {
   fill(0);
   stroke(10);
   strokeWeight(12);
   fill(255,0,0);
   int x = 50;
   int space = 180;
   for (int i = 0; i < 400; i+= space) {
   ellipse( x-15, i+75, x,x ); ///left holes
   ellipse( x*6.5, x+20, x,x ); ///top middle hole
   ellipse( x*12.5, i+70, x,x ); ///right holes
   ellipse( x*6.5, x*9, x,x ); ///bottom middle hole
   }
}


class Ball {
  ////Ball has position, velocity, color etc...
  ////Ball move and show
  
  int  r1=  int( random(255) );      // random color
  int  g1=  int( random(255) );
  int  b1=  int( random(255) );
  int w=25, h=40;   ////width and height of ball
  int hitcount=0;
  float x=50,y=100; ////ball position on screen
  float dx=3,dy=2; ////Velocity of ball
  float diameter;
  String number; /// number on balls
  String name;      // Name of this player 
 
    //// METHODS ////
  void move() {
    //// Move this Ball. ////
    x += dx;
    y += dy;
    if (x<left+w/2 || x>right-w/2) dx=  -dx;     // reverse speed direction.
    if (y<top+h/2 || y>bottom-h/2) dy=  -dy; 

  }
  
  void show() {
    //// Display this Ball on the screen (at x,y, with color rgb, etc.)
    stroke(0);
    strokeWeight(2);
    fill( r1,g1,b1 );        ////random color of ball
    ellipse( x,y, w+20,h+5 ); //// draw the ball
    fill(255); ////white color of ball center
    ellipse( x,y-5, w,h-15 ); //// draw the ball center
    ellipseMode( CENTER );
    textSize( 15 );
    fill(0);
    text( number, x-w/2+2, y+5 ); ///numbers on balls
    smooth();
    }
  
    
  //// CONSTRUCTORS ////
  //  Ball need to have a number!  ////
     Ball() {}
     Ball( String s ) {
     //// number and color only.
     number=  s;
     r1=  int( random(255) );      // random color()
     g1=  int( random(255) );
     b1=  int( random(255) );
     start();       // Start with random coordinates and velocity.
     diameter = 25;
 
  }
  

boolean gotHit(float x1, float y1, float d1, float x2, float y2, float d2 ) {
  float d = dist(x1, y1, x2, y2);
  if   ( d < (d1/2 + d2/2) ) return true; 
  else return false;
}
        
  // Methods used by constructors. //
  void start() {
     // Random position and speed for this Ball.
       r1=  int( random(255) );   // random colors
       g1=  int( random(255) );
       b1=  int( random(255) );
       x=  random(left,right);    // random position
       y=  random(top,bottom);
       dx=  random(1,5);          // random position
       dy=  0;
       dy=  random( 0.5, 2.5 );
  }

      
}// END OF class Ball. //  
 
 
      void keyPressed() {
        //// Handle keys.
        if (key == 'q') exit();
        if (key == 'r') reset();
        if (key == '+') {
            if (many >= toomany) {
              news=  title=  "TOO MANY BALLS!  Maximum is "+toomany;
              return;
            } else {
              Ball m=  new Ball( many+"" );
              school[many]=  m;
              many++;
            }
        }
        if (key == '-') {
          if (many>0) many--;
        }
        if (key == '0') { 
          many=0; 
          school=  new Ball[0];
        }
      }
void help() {
        //// Show instructions
        int x=100, y=100, j=0;
        fill(0);
        text( "I N S T R U C T I O N S", x, y+12*j++ );
        text( "* * * * * * * * * * * * * *", x, y+12*j++ );
        x=  x+20;
        text( "q:  quit", x, y+12*j++ );        
        text( "r:  reset all ball", x, y+12*j++ );        
        text( "+:  more ball", x, y+12*j++ );        
        text( "-:  fewer ball", x, y+12*j++ );        
        text( "0:  no ball (except Val)", x, y+12*j++ );        
      }
      

 class Button {
      // Button
      float x=20,y=20, w=80,h=40;
      String number="Click Val!";
      void show() {
        // Show the button //
        fill( 200 );
        strokeWeight(4);
        rectMode( CORNER );
        fill(255,255,0);
        rect( x+60,y-20, w,h );
        fill(255,0,255);
        text( number, x+65, y );
      }
    }

class Player {
  ////players
     float x=650,y=150, w=40,h=40, dx=2, dy=1;
     float diameter;
 void show() {
        // Show the player //
        diameter = 25;
        fill( 255,122,200 );
        strokeWeight(2);
        rectMode( CORNER );
        fill(200,100,100);
        rect( x+20,y+25, w,h+25 );  ////player body
        ellipse(x+40, y+20,w+5,h+5); ////Player head
        rect( x+20,y+75, w-30,h+5 );  ////player left leg
        rect( x+50,y+75, w-30,h+5 );  ////player right leg
        fill(255);
        ellipse(x+30, y+20,w-35,h-35); ////Player Left eye
        ellipse(x+50, y+20,w-35,h-35); ////Player right eye
               
       ////Player with Pool stick
        fill(195);
        rect( x+20,y+35, w-180,h-25 );  ////player pool stick
        
       ////move the player
       x += dx;
       y += dy;
       if (x<left || x>right-500) dx=  -dx;     // reverse speed direction.
       if (y<top || y>bottom-100) dy=  -dy; 

        
 }
}