//Introducing Dr. Zoidberg, the Cross Dressing Robot!
//Let Him/Her bounce around your window!
//Code written by Zachary Semcken, assisted by BAM.

void setup() {                 //Initializes Sketch.
  size(750,750);               //Sets size of window.
  smooth();                    //Keeps the annimation smooth.
}

boolean SEX;                     //Sets boolean variable to change sex.
float sX= 650;                   //Sets X position of the Sun
float sDX= -2;                   //Sets horizontal velocity of the Sun.
float mX=0, mY=0, mDX=5, mDY=3;  //Sets X and Y position and velocity of Dr. Zoidberg.
float bX, bY;                    //Sets position of Bomb.
float bV=0;                      //Sets velocity of Bomb
float bA=9.81 / 30;              //Sets acceleration of Bomb.

void drawScene() {                                     //Creates the drawScene variable.
  background(0,175,255);                               //Creates the sky. 
  text("Press X to transform Dr. Zoidberg!",10,35);    //Change the sex of Dr. Zoidberg. 
  smooth();                                            //Keeps the annimation smooth.
  rectMode(CORNER);                                    //Sets rectangle mode.
  fill(0,255,100);                                     //Sets fill color for grass.
  stroke(0);                                           //Sets outline color for grass.
  rect(0,height-height/10,width,height);                      //Draws the grass.
  sX += sDX;                                           //Time to move the sun.
  if (sX<100 || sX>width-100) sDX=  -sDX;              //Sets Sun's borders for bounces.
  ellipseMode(CENTER);                                 //Sets Ellipse mode to Center.
  fill(255,255,0);                                     //Sets fill color for the Sun.
  stroke(255,150,0);                                   //Sets outline color for the Sun
  ellipse(sX,100,80,80);                               //Draws the Sun.
}

void mousePressed() {                                  //Alters the location and sex of Dr. Zoidberg.
  SEX= false;                                          //Changes boolean value of SEX variable.
  mX=  mouseX;                                         //Moves Dr. Zoidberg to mouse's horizontal position.
  mY=  mouseY;                                         //Moves Dr. Zoidberg to mouse's vertical position.
}

void keyPressed() {                                    //Use of specific keys to alter the scene.
  SEX= false;                                          //Changes boolean value of SEX variable.
  if (key == 'x') SEX=!SEX;                            //Changes sex of Dr. Zoidberg.
  if (key == 'b') {bY=0;bV=0;}                         //Resets bomb coordinates.
}

void dropBomb() {                                      //Creates dropBomb method to .. DROP A BOMB!?!
  fill(0,0,255);                                       //Sets the internal color of the bomb.
  bX= mouseX;                                          //Makes the bomb follow the mouse in the horizontal.
  ellipse(bX,bY,30,50);                                //Draws the ellipse with variables.
  bY += bV;                                            //Sets the bomb in motion.
  bV += bA;                                            //Gives the bomb acceleration.
}

void moveZoidberg() {                                  //Time to move Dr. Zoidberg!
  mX -=  mDX;                                          //Sets horizontal function for movement.
  if (mX<0 || mX>width) {                              //Sets parameters for horizontal motion to stop at the window's edge.
    mDX=  -mDX;                                        //Negates the velocity (Reverses it).
    SEX= !SEX;                                         //Changes the sex of Dr. Zoidberg upon "impact".
  }
  mY -=  mDY;                                          //Sets vertical function for movement.
  if (mY<0 || mY>width-150) {                          //Sets parameters for vertical motion to stop at the window's edge.
    mDY=  -mDY;                                        //Negates the velocity (Reverses it).
    SEX=  !SEX;                                        //Changes the sex of Dr. Zoidberg upon "impact".
  }
}

void drawMrs() {
  ellipseMode(CENTER);                                 //Sets ellipse mode.
  fill(150,150,255);                                   //Sets fill color for the head.
  stroke(0);                                           //Sets outline color for the head.
  ellipse(mX,mY,50,50);                                //Draws the head.
  fill(0);                                             //Sets eye color.
  stroke(0);                                           //Sets eye liner.
  ellipse(mX-10,mY-10,10,10);                          //Draws left eye.
  ellipse(mX+10,mY-10,10,10);                          //Draws right eye.
  arc(mX,mY+15,30,30,PI,2*PI);                         //Draws Mrs. Zoidberg's frown.
  fill(255,0,255);                                     //Sets fill color for the body.
  stroke(0);                                           //Sets outline color for the body.
  triangle(mX,mY+25,mX-25,mY+125,mX+25,mY+125);        //Draws the body.
  stroke(0);                                           //Sets arm and leg color.
  line(mX-8,mY+50,mX-50,mY+100);                       //Mrs. Zoidberg's Left Arm.
  line(mX+8,mY+50,mX+50,mY+100);                       //Mrs. Zoidberg's Right Arm.
  line(mX-14,mY+125,mX-25,mY+150);                     //Mrs. Zoidberg's Left Leg.
  line(mX+13,mY+125,mX+25,mY+150);                     //Mrs. Zoidberg's Right Leg.
  fill(255);                                           //Puts Mrs. Zoidberg's title in white.
  text("Mrs. Zoidberg",mX-40,mY-35);                   //Draw's Mrs. Zoidberg's title.
}

void drawMr() {
  ellipseMode(CENTER);               //Sets ellipse mode.
  fill(255);                         //Sets fill color for the head.
  stroke(0);                         //Sets outline color for the head.
  ellipse(mX,mY,50,50);              //Draws the head.
  fill(255,0,100);                   //Sets eye color.
  stroke(255,0,100);                 //Sets eye liner.
  ellipse(mX-10,mY-10,10,10);        //Draws left eye.
  ellipse(mX+10,mY-10,10,10);        //Draws right eye.
  arc(mX,mY+5,30,30,0,PI);           //Draws Mr. Zoidberg's smile.
  rectMode(CENTER);                  //Sets body to the center.
  fill(255,0,0);                     //Sets fill color for the body.
  stroke(0);                         //Sets outline color for the body.
  rect(mX,mY+75,30,80);              //Draws the body.
  stroke(0);                         //Sets arm and leg color.
  line(mX-15,mY+50,mX-30,mY+100);    //Mr. Zoidberg's Left Arm.
  line(mX+15,mY+50,mX+30,mY+100);    //Mr. Zoidberg's Right Arm.
  line(mX-15,mY+115,mX-25,mY+140);   //Mr. Zoidberg's Left Leg.
  line(mX+15,mY+115,mX+25,mY+140);   //Mr. Zoidberg's Right Leg.
  fill(255);                         //Puts Mr. Zoidberg's title in white.
  text("Mr. Zoidberg",mX-35,mY-35);  //Draw's Mr. Zoidberg's title.
}

void draw() {                        //Time to actually draw the sketch!
  drawScene();                       //Sets the scenery.
  moveZoidberg();                    //Calls the moveZoidberg method.
  if (key == 'b') dropBomb();        //Calls the dropBomb method when the key, "b" is pressed.
  if (SEX)  drawMr();                //Initializes drawMr() method.
  else drawMrs();                    //Defers drawMr() method to drawMrs() method.
}