Lab03 : Bird

int wing_original;
int dx=1;
void setup() {
  size(500, 500);
  strokeWeight(5);
}

void draw() {
  background(51);
  wing_original=mouseY;
  if (frameCount%30>=15) {
    wing_original+=30;
  } else
  {
    wing_original-=30;
  }
  dx=(dx+1)%200;
  stroke(255);
  draw_bird(mouseX, mouseY);
  cloud(dx, 50, 50);
  cloud(170+dx*0.8, 50, 70);
  cloud(350+dx*0.9, 80, 60);
  cloud(dx*1.2, 130, 40);
  cloud(230+dx*1.2, 150, 40);
  cloud(100+dx*1.2, 170, 40);
}

void draw_bird(int x, int y) {
  line(x, y, x-50, wing_original); //left
  line(x, y, x+50, wing_original); //right
  fill(0);
  ellipse(x, y, 30, 30);
  noStroke();
  fill(255,255,0);
  triangle(x-5, y, x+5, y, x, y+9);
}

void cloud(float x, float y, int size) { //100 width 
  noStroke();
  fill(#02F0D2);
  ellipse(x, y, size, size);
  x+=size/2;
  ellipse(x, y, size, size); 
  ellipse(x, y-size/4, size, size);
  ellipse(x, y+size/4, size, size);
  x+=size/2;
  ellipse(x, y, size, size); 
  ellipse(x, y-size/4, size, size);
  ellipse(x, y+size/4, size, size);
  x+=size/2;
  ellipse(x, y, size, size);
}