Making pacman how to create dots and have pacman eat them?

SanchezLeslie

I am making Pacman for class and i am trying to make the dots that pacman has to eat but im not sure how to make the dots and how he is suppose to eat them, please help!!

public abstract class Item 
{
  public void pacEatsDots();

}

public class Pacman extends Item
{
  int x;
  int y;
  int radius = 15;
  int direction = 1;
  int direction2 = 0;

  public Pacman(int xn, int yn)
  {
    x = xn;
    y = yn;
  }

void keyPressed() {//https://forum.processing.org/two/discussion/1573/spoof-of-pacman-game-for-project
  if (key == CODED) {
    if (keyCode == LEFT) {
      x = x - 5;
      direction = -1;
      direction2 = 0;
    } else if (keyCode == RIGHT) {  
      x = x + 5;
      direction = 1;
      direction2 = 0;
    } else if (keyCode == UP) {
      y = y - 5;
      direction = 0;
      direction2 = -1;
    } else if (keyCode == DOWN) { 
      y = y + 5;
      direction = 0;
      direction2 = 1;
    }
  }
}


  public void render() {//https://forum.processing.org/two/discussion/1573/spoof-of-pacman-game-for-project
  for ( int i=-1; i < 2; i++) {
    for ( int j=-1; j < 2; j++) {
      pushMatrix();
      translate(x + (i * width), y + (j*height));
      if ( direction == -1) { 
        rotate(PI);
      }
      if ( direction2 == 1) { 
        rotate(HALF_PI);
      }
      if ( direction2 == -1) { 
        rotate( PI + HALF_PI );
      }
      arc(0, 0, radius*2, radius*2, map((millis() % 500), 0, 500, 0, 0.52), map((millis() % 500), 0, 500, TWO_PI, 5.76) );
      popMatrix();
      fill(255, 255, 0);
      // mouth movement //
    }
  }
  }

  public void checkPixelsPacman()
  {
    color white = color(255, 255, 255);
    color black = color(0,0,0);
    color c = pg.get(x,y);
    if (c==white) {
      pac.keyPressed();
      pac.render();
    }
    else if(c == black)
   {
    pac.render();
   } 
  }
}

public class Dots extends Item {
  int[][] data = new int[][];
  int x;
  int y;
  public Dots(int xn,int yn)
  {
    x = xn;
    y = yn;
  }

  public void display()
  {

    fill(255); 
    ellipse(x,y,15,15);
  }
}


Pacman pac;
PImage img;
PImage startscreen;
int direction = 1;
int direction2 = 0;
int radius = 15;
PGraphics pg;
boolean path = false;
Dots dot;
void setup()
{
  background(0);
  size(723, 800);
  dot = new Dots(40,40);
  pac = new Pacman(100, 225);
  pg = createGraphics(723, 800);
  img = loadImage("psb2.jpg");
}


void draw()
{
  stroke(0);
  image(img, 0, 0);
   dot.display();


  pg.beginDraw();
  pg.background(0);
  pg.stroke(255);
  pg.line(40, 40, 40, 225);//pathway
  pg.line(40, 225, 165, 225);//pathway
  pg.line(40, 40, 325, 40);//pathway
  pg.line(165, 40, 165, 685);
  pg.line(165, 685, 40, 685);
  pg.line(40, 685, 40, 755);
  pg.line(40, 755, 690, 755);
  pg.line(690, 755, 690, 685);
  pg.line(690, 685, 560, 685);
  pg.line(560, 685, 560, 40);
  pg.line(400, 40, 690, 40);
  pg.line(400, 40, 400, 145);
  pg.line(690, 40, 690, 145);
  pg.line(690, 145, 40, 145);
  pg.line(325, 40, 325, 145);
  pg.line(245, 145, 245, 225);
  pg.line(245, 225, 320, 225);
  pg.line(320, 225, 320, 300);
  pg.line(250, 300, 480, 300);
  pg.line(250, 300, 250, 375);
  pg.line(480, 300, 480, 375);
  pg.line(480, 375, 800, 375);
  pg.line(250, 375, 0, 375);
  pg.line(250, 375, 250, 525);
  pg.line(40, 525, 320, 525);
  pg.line(40, 525, 40, 610);
  pg.line(320, 525, 320, 610);
  pg.line(320, 610, 165, 610);
  pg.line(40, 610, 90, 610);
  pg.line(90, 610, 90, 685);
  pg.line(320, 610, 560, 610);
  pg.line(475, 610, 475, 685);
  pg.line(475, 685, 405, 685);
  pg.line(405, 685, 405, 755);
  pg.line(320, 755, 320, 680);
  pg.line(320, 680, 250, 680);
  pg.line(250, 680, 250, 610);
  pg.line(400, 610, 400, 525);
  pg.line(400, 525, 680, 525);
  pg.line(680, 525, 680, 610);
  pg.line(680, 610, 630, 610);
  pg.line(630, 610, 630, 685);
  pg.line(480, 375, 480, 525);
  pg.line(480, 455, 250, 455);
  pg.line(400, 300, 400, 225);
  pg.line(400, 225, 480, 225);
  pg.line(480, 225, 480, 145);
  pg.line(690, 145, 690, 220);
  pg.line(690, 220, 560, 220);
  pg.endDraw();
 // image(pg, 0, 0);

  pac.checkPixelsPacman();

}

TfGuy44

I have done pacman to death.

https://forum.processing.org/two/discussion/11156/pac-man-game-not-completed-asking-for-assistance

TfGuy44

Of course, for you, you might want to do something more like the coins from this:

https://forum.processing.org/two/discussion/22795/how-do-you-use-arrays-to-create-x-y-points-that-only-draw-something-when-you-walk-over-them

Just start with the coins visible and turn them invisible when you collect them.

SanchezLeslie

@TfGuy44 thank you so much!! One more question, my pacman object keeps on moving even when the keys aren't being pressed do you know why?

public class Pacman 
{
  int x;
  int y;
  int radius = 15;
  int direction = 1;
  int direction2 = 0;

  public Pacman(int xn, int yn)
  {
    x = xn;
    y = yn;
  }

void keyPressed() {//https://forum.processing.org/two/discussion/1573/spoof-of-pacman-game-for-project
  if (key == CODED) {
    if (keyCode == LEFT) {
      x = x - 1;
      direction = -1;
      direction2 = 0;
    } else if (keyCode == RIGHT) {  
      x = x + 1;
      direction = 1;
      direction2 = 0;
    } else if (keyCode == UP) {
      y = y - 1;
      direction = 0;
      direction2 = -1;
    } else if (keyCode == DOWN) { 
      y = y + 1;
      direction = 0;
      direction2 = 1;
    }
  }
}


  public void render() {//https://forum.processing.org/two/discussion/1573/spoof-of-pacman-game-for-project
  for ( int i=-1; i < 2; i++) {
    for ( int j=-1; j < 2; j++) {
      pushMatrix();
      translate(x , y  );
      if ( direction == -1) { 
        rotate(PI);
      }
      if ( direction2 == 1) { 
        rotate(HALF_PI);
      }
      if ( direction2 == -1) { 
        rotate( PI + HALF_PI );
      }
      arc(0, 0, radius, radius, map((millis() % 500), 0, 500, 0, 0.52), map((millis() % 500), 0, 500, TWO_PI, 5.76) );
      popMatrix();
      fill(255, 255, 0);
      // mouth movement //
    }
  }
  }

  public void checkPixelsPacman()
  {
    color white = color(255, 255, 255);
    color black = color(0,0,0);


    color c = pg.get(x+1,y);
    color d = pg.get(x,y+1);
    if (c==white) {//hortizontal

      pac.keyPressed();
      pac.render();
    }
    if(d==white)
    {

      pac.keyPressed();
      pac.render();
    }
    else if(c == black)
   {
    pac.render();
   } 
  }
}
``

TfGuy44

On line 76, your checkPixelsPacman() function is calling the keypressed() function to MOVE Pacman in addition to setting his direction. What you should really do is only set the direction in keyPressed() (since that's all pressing a key should actually do, right?), and then try to update pacman's position is some other function.

For reference, look at (starting at line 86) this in my old pacman code:

  void on_keyPressed() {
    if ( key == CODED ) {
      if ( keyCode == RIGHT ) d=0;
      if ( keyCode == DOWN )  d=1;
      if ( keyCode == LEFT )  d=2;
      if ( keyCode == UP )    d=3;
    }
  }

This sets the direction based on what key was pressed. This direction is then used elsewhere to actually move pacman (line 40):

    float px=x, py=y;
    if (0==d) x++;
    if (1==d) y++;
    if (2==d) x--;
    if (3==d) y--;
    if (grid.is_wall(x, y)) {
      x = px;
      y = py;
    }