Hi y' all,

I'm coding a bunch of Pacmen which are supposed to "munch" while bouncing back and forth in the display window.  The problem is most of them munch way to fast, while a few munch slower to very slow.  Here's my code:

// Code starts here

Pacman[] pac = new Pacman[50];

void setup() {
  size(400, 200);
  smooth();
  for(int i = 0; i < pac.length; i++) {
    pac[i] = new Pacman();
  }
}

void draw() {
  background(0);
  for(int i = 0; i < pac.length; i++) {
    pac[i].display();
    pac[i].go();
    pac[i].munch();
  }
} 

// Pacman class block starts here

class Pacman {   
  float x;
  float y;
  float radius;
  float speed;
  color col;
  int direction;
 
  Pacman() {
    radius = random(10, 30);
    x = random(radius, width-radius);                                
    y = random(height);
    speed = random(1.0, 4.0);
    colorMode(HSB, 360, 100, 100);
    col = color(random(20, 120), 100, random(80, 100));
    direction = 1;
  }
 
  void display() {
    noStroke();
    fill(col);
    ellipseMode(RADIUS);
  }
 
  void go() {
    x += speed * direction;
    if ((x > width - radius) || (x < radius)) {
      direction = -direction;
    }
  }

  // I know the problem lies in here, just what did I miss?

  void munch() {
    int n = int(x);                                                                  // Cast float x to int n
    if (direction == 1) {                                                          // If pacman is going to the right,
      if (n%2 == 0) {                                                              //  and that n%2 is 0,
        ellipse(x, y, radius, radius);                                          // draw a pacman with mouth closed
      }
      else {
        arc(x, y, radius, radius, radians(35), radians(325));         // Else, draw a pacman with mouth open to the right.
      }
    }
    if (direction == -1) {                                                         // If pacman is going back to the left,
      if (n%2 == 0) {                                                              // and that n%2 == 0,
        ellipse(x, y, radius, radius);                                          // draw a pacman with mouth closed.
      }
      else {
        arc(x, y, radius, radius, radians(215), radians(505));       // Else, draw a pacman with mouth open to the left.
      }
    }
  }
}

// This code ends here

Your kind help would be very much appreciated!  Thanks in advance.