//proj3

///GLOBALS///
float goldX, goldY, goldDX=3, goldDY=2;
float letharX, letharY, letharDX=3, letharDY=2;
float zobeX, zobeY, zobeDX=3, zobeDY=2;
float sunX, sunY;
float hh,xh,yh;
float birdX=30, birdY=60;
float horizon;


void setup() {
  size(600,500);
   horizon=  height/4;
  letharX=  width/2;
  letharY=  height/2;
  zobeX=  height/4;
  zobeY=  width/2;
  goldX= height/4;
  goldY= width/2;
  
  background(85, 192, 247);
}

void draw() {
   //NEXT FRAME//
   scene();
   grass();
   sun();
   lethar();
   gold();
   zobe();
   sun();
   bird(X, Y);
   wing(X, Y);
}
   
 void scene() {
   //scene: sky & horizon
   fill(85, 192, 247);
 rect(0, 0,width, height);
 
   }
   
  void grass() {
     //draw grass
     fill(10, 252, 76);
     rect(0, horizon, width, height);
     strokeWeight(2);
  stroke(0, 255, 255); // green grass, bottom of the screen.
  for (float x=50; x<width+100; x+=50) {  
    line( x, height, x+10, height-30);
      }
   }
   void bird(float X, float Y) {
  //one bird at (x, y)
  fill(255, 0, 0);
  triangle(birdX, birdY, birdX-20, birdY-30, birdX+30, birdY-30);

  birdX+=3;
  if (birdX>width) {
    birdX = 0;
  }
}
void wing(float X, float Y) {
  //bird at(x,y)
  fill(255, 0, 0);
   triangle(birdX, birdY, birdX-20, birdY-60, birdX+30, birdY-30);
  
  birdX+=3;
  if(birdX>width) {
    birdX = 3;
  }
}
   
   void sun() {
     fill(255, 240,0);
     ellipse(sunX+50, sunY+50, 60, 60);
     
     sunX+= 1;
     if (sunX>width) {
     sunX = 0;
      } 
   }
   void lethar() {
     // Move lethar
  if (letharX>width || letharX<0) letharDX *= -1;
  if (letharY>height ||letharY<height/4) letharDY *= -1;
  letharX=  letharX+letharDX;
  letharY=  letharY+letharDY;
  // Draw lethar
  body( letharX, letharY );
  head( letharX+10, letharY-30, 30 );
  
  
   }
   
 //Draw Lethar's head//
void head (float hh, float xh, float yh) {
  fill(0);
  rect( hh, xh, yh, yh);
}

void body(float x, float y) {
  //Draw Lethar's body//
  //rectMode(CENTER);
  //--  rect(30,20,55,55);
  fill(234, 7, 7);
  rect( x, y, 55,55);
  
  
}  

//A function to display zobe
void zobe() {
  // Move lethar
  if (zobeX>width || zobeX<0) zobeDX *= -1;
  if (zobeY>height ||zobeY<height/4) zobeDY *= -1;
  zobeX=  zobeX+zobeDX;
  zobeY=  zobeY+zobeDY;
  // Draw lethar
  body( zobeX, zobeY );
  head( zobeX+10, zobeY-30, 30 );
  fill(39, 108, 5);

  
}
void gold() {
  // Move the gold
  if (goldX>width || goldX<0) goldDX *= -1;
  if (goldY>height ||goldY<height/4) goldDY *= -1;
  goldX=  goldX+goldDX;
  goldY=  goldY+goldDY;
  //Draw the gold
  fill(250, 227, 20);
  ellipse(goldX+10, goldY-30, 30, 30);
}