//Walking Pac man V2 - setting boundaries
// Copyright © 2014 Jia Tao
// Bryn Mawr College, Department of Computer Science
// Permission is granted to copy and distribute provided 
// this entire copyright notice is reproduced in all copies.

boolean walkPose = false;
boolean left = true;
float speed = 5.0;
float cX = 100.0;
float cY = 100.0;
float r = 40.0;
color yellow = color(255, 255, 0);

void setup() {
  size(500, 500);
  smooth();
  frameRate(20);
  strokeWeight(2);
}

void draw() {
  background(255);
  fill(yellow);

  //pacman's body
  if (left==false) {
    arc(cX, cY, r*2, r*2, PI/6, 11*PI/6, PIE);
  }
  else {
    arc(cX, cY, r*2, r*2, 7*PI/6, 17*PI/6, PIE);
  }
  //pacman's eye
  fill(0);
  ellipse(cX, cY-20, 10, 10);

  if (walkPose==true) {
    //pacman's legs
    line(cX, cY+r, cX+15, cY+r+15);
    line(cX, cY+r, cX-15, cY+r+15);
  }
  else {
    line(cX, cY+r, cX+5, cY+r+20);
    line(cX, cY+r, cX-5, cY+r+20);
  }
}

void keyPressed() {
  if (keyCode == UP) 
  {
    walkPose = !walkPose;
    if (cY-r >0 ) {
      cY -= speed;
    }
  } 
  else if (keyCode == DOWN) 
  {
    walkPose = !walkPose;
    if (cY+r+20<height)
      cY += speed;
  } 
  else if (keyCode == LEFT) 
  {
    walkPose = !walkPose;
    left = true;
    if (cX-r>0)
      cX -= speed;
  } 
  else if (keyCode == RIGHT) 
  {
    walkPose = !walkPose;
    left = false;
    if (cX+r<width)
      cX += speed;
  }
}