//feel free to muck around with these 2 values
int sx = 10;
int sy = 35;

int posY = 3*sx; //variable
int posX = 0;    //constant dependant on with window width

void setup() {
  frame.setTitle("Birds-eye-view of flying plane");
  size(512, 768);
  background(174, 59, 52);

  stroke(255);
  fill(255);

  posX = width/2 - sx/2;
}

void drawPlane() {

  rect(posX, posY, sx, sy); //body
  ellipse(posX+int(0.5*sx), posY+sy, sx, sy); //nose
  triangle(posX, posY, posX+sx, posY, posX+int(sx*0.5), posY-3*sx); //tail

  //tail wings
  triangle(posX+int(sx*0.5), posY-int(1.5*sx), posX+int(sx*0.5), posY-2.5*sx, posX-sx,   posY-3*sx);
  triangle(posX+int(sx*0.5), posY-int(1.5*sx), posX+int(sx*0.5), posY-2.5*sx, posX+2*sx, posY-3*sx);

  //wings
  triangle(posX,    posY+int(0.75*sy), posX,    posY+int(0.37*sy), posX-sy,    posY);
  triangle(posX+sx, posY+int(0.75*sy), posX+sx, posY+int(0.37*sy), posX+sx+sy, posY);

  //inner turbines
  rect(posX-int(1.0/3.0*sy),                posY+int(0.37*sy), int(sx*0.4), int(sx*1.3));
  rect(posX+sx+int(1.0/3.0*sy)-int(sx*0.4), posY+int(0.37*sy), int(sx*0.4), int(sx*1.3));

  //outer turbines
  rect(posX-int(2.0/3.0*sy),                posY+int(0.37*sy)-int(sx*1.3/2), int(sx*0.4), int(sx*1.3*2.0/3.0));
  rect(posX+sx+int(2.0/3.0*sy)-int(sx*0.4), posY+int(0.37*sy)-int(sx*1.3/2), int(sx*0.4), int(sx*1.3*2.0/3.0));

}

void keyPressed() {
  posY = 3*sx;
}

void draw() {
  background(174, 59, 52);
  drawPlane();

  if (posY-3*sx < height+2){ //just to avoid potential problems
    posY++;
  }


}