Modify a text file: $/p5._rashid.pde

$/p5._rashid.pde

//// Billiard table, with array of moving balls.
//Project 5. 
String title="Bouncing Balls.";
String subtitle="Array of Ball objects";
String author="Farah Rashid";

// Global declaration for the Ball array.
int arraysize=20;
Ball[] b = new Ball[arraysize];
int many=10;

//// Assume size(600,400) for 300x500 table.
float left=50, top=50, right=550, bottom=350, bump=25;
float center=(left+right)/2, middle=(top+bottom)/2;
int score=0, sweeps=0, frames=0, games=0;

void setup() {
  //// Setup:  600x400 (for 300x500 table).
  size(600,400);
  frameRate(30);
  newGame();
}
void newGame() {
  ++games;
  score=sweeps=frames=0;
  init();
  b[0].reset();
  resetAll();
}
void init() {
  many = int( random(7,17) );
  subtitle = "Array of "+many+" Ball objects.";
  ////  Initialize the cueball.
  b[0] = new Ball( 0, 255,255,255 );
  b[0].c = color(255,255,255);  // WHITE cueball
  ////  Initialize the other balls.
  for (int i=1; i<many; i=i+1) {
    b[i] = new Ball( i, 255,255,255 );
    b[i].c = color(random(0,255),random(0,255),random(0,255));
      // ++++ ADD YOUR CODE HERE ++++ ////
      
  }
  resetAll();
}
void resetAll() {
  //// Randomize the ball positions & speeds.
  for (int i=1; i<many; i=i+1) {
    b[i].reset();
    b[i].dead=false;
      // ++++ ADD YOUR CODE HERE ++++ ////
      
  }
 
}

void draw() {
  background( 250,250,200 );    // Tan floor.
  drawTable();
  messages();
  drawBalls();
  if (score>=100) {
    textSize(30);
    text( "G A M E   O V E R", width/3, height/2 );
    textSize(12);
    text( "    Press 'g'  key for new game.", width/3, 30+height/2 );
    return;
  }
  // Check if any balls left
  int n = countAll();
  if (n<1) {
    ++ sweeps;
    resetAll();
  }
  //
  if (keyPressed) return;      // No action when a key is presses.
  ++frames;
  moveBalls();
  b[0].move();
}

void  drawBalls() {
  b[0].show();
  //// Draw each ball.
 for (int i=1; i<many; i=i+1) {
    b[i].show();
      // ++++ ADD YOUR CODE HERE ++++ ////
      
  }
  // ++++ ADD YOUR CODE HERE ++++ ////

}
  
void  moveBalls() {
  //// Move each ball
   for (int i=1; i<many; i=i+1) {
    b[i].move();
    if (hit(b[0],b[i])){
      ++score;
      b[i].kill();
    }
      // ++++ ADD YOUR CODE HERE ++++ ////
      
  }
    // ++++ ADD YOUR CODE HERE ++++ ////

//// Collision with b[0] kills the ball.

// ++++ ADD YOUR CODE HERE ++++ ////

/* OLD CODE WAS:
  if (hit(zero,one))   { ++score; one.kill(); }
  if (hit(zero,two))   { ++score; two.kill(); }
  if (hit(zero,three)) { ++score; three.kill(); }
  if (hit(zero,four))  { ++score; four.kill(); }
  if (hit(zero,five))  { ++score; five.kill(); }
*/

//
}
boolean hit( Ball p, Ball q ) {
  // Return true iff p is near q.
  float near=50;
  float d = dist( p.x,p.y, q.x,q.y );
  if (dist( p.x,p.y, q.x,q.y ) < near) return true;
  else return false;
}
int countAll() {
  int m=0;
  for (int i=1; i<many; i=i+1) {
    if (!b[i].dead){
      m = m+1;
    }
      
  }
    // ++++ ADD YOUR CODE HERE ++++ ////

return m;
}

void  drawTable() {
  //// Draw 500x300 green light-table, with thick brown border, on cyan backgroud.
  fill( 100,200,100 );          // Light-green table.
  stroke( 100,50,50 );          // Brown (wood) rail.
  strokeWeight(25);
  rectMode(CORNERS);
  rect(left,top, right,bottom);        // Table (with rail);
  rectMode(CORNER);
  strokeWeight(1);
}
void messages() {
  fill(0);
  textSize(24);
  text( title, width/3, 20);
  textSize(12);
  text( subtitle, width/3, 36);
  text( "Author: "+author, width*3/4, height-10 );
  fill( 255,0,0);
  textSize(16);
  text( "SCORE:  "+score, 420, 15 );
  textSize(12);
  text( "(g for new game)", 420, 30 );
  fill( 0,0,200);
  String help1="Cueball kills other balls!";
  String help2=  "Press 1, 2, 3, etc. reset a ball.";
  text( help1, left+10, height-25);
  text( help2, left+10, height-10);
}

/////////////////  CLASSES

class Ball {
  //// Billiard ball.
  int n;
  color c;
  float x,y;    // Position of this ball.
  float xx,yy;  // Velocity (pixels per frame).
  boolean dead=false;
  
  //// CONSTRUCTORS ////
  Ball( int number, int r, int g, int b ) {
    //// 4-arg constructor sets number & color;
    n= number;
    c=  color( r, g, b );
  }

//// METHODS  ////
  void move() {
    if (dead) return;
    //// Move ball by (xx,yy)
    x=  x + xx;
    y=  y + yy;
    // Bounce off walls.
    if (x < left+bump)   { xx = -xx;   x=left+2*bump; }
    if (x > right-bump)  { xx = -xx;   x=right-2*bump; }
    if (y < top+bump)    { yy = -yy;   y=top+2*bump; }
    if (y > bottom-bump) { yy = -yy;   y=bottom-2*bump; }
  }
  void show() {
    //// Draw at (x,y)
    fill(c);
    ellipseMode(CENTER);
    ellipse(x,y, 30,30);        // Diameter is 30.
    fill(0);
    text(n, x-5, y+5);
  }
  //
  void kill() {
    dead=true;
    x=  40;
    y=  random( top+30, bottom-30 );
    xx=0;
    yy=0;
    background(c);
  }
  void restore() {
    dead=false;
    reset();
  }
  void reset() {
    if (dead) return;
    x=  random( left+30, center-100 );
    y=  random( top+30, bottom-30 );
    xx= random( 2, 5 );
    yy= random( 1, 3 );
  }
  boolean clicked() {    // true iff clicked nearby.
    if ( dist(x,y, mouseX,mouseY) < 40) return true;
    else return false;
  }
}// END OF class Ball //

//////// EVENT HANDLERS ////////
void keyPressed() {
  if (key=='g') newGame();   //// "g" new game.
  if (key=='q') exit();       //// "q" quits game.

int n = key - '0';      // n = number of the key.
                          // n=1 for '1', n=2 for '2', etc.
  ////  "Reset a ball by pressing key 1, 2, 3, etc.
  //b[n].reset();
    //// ++++ ADD YOUR CODE HERE ++++ ////
for (int i=1; i<many; i=i+1) {
    if (n==i){
      b[i].reset();
    }
}
  /* OLD CODE WAS:  
  if (key=='1') one.reset();
  if (key=='2') two.reset();
  if (key=='3') three.reset();
  if (key=='4') four.reset();
  if (key=='5') five.reset();
  */
}
void mousePressed() {
  if (b[0].clicked()) {
    // cueball was clicked.
    b[0].reset();
  }
   for (int i=1; i<many; i=i+1) {
    if (b[i].clicked()){
      b[i].reset();
    }
   }
    //// ++++ ADD YOUR CODE HERE ++++ ////

}