//float base = 0;
float sz = 50;
import gifAnimation.*;
GifMaker gifExport;

SmallHeart h1;
SmallHeart h2;
SmallHeart h3;


float BIGNUM = 40;

void setup() {
  size(500,500);
  gifExport = new GifMaker(this, "atomicraw.gif");
  gifExport.setRepeat(0); // make it an "endless" animation


  smooth();
  strokeWeight(4);
  noStroke();
  
  h1 = new SmallHeart();
  h2 = new SmallHeart();
  h3 = new SmallHeart();
}
float bigAngle = 0;

void draw(){

  frameRate(10);
  background(255); 

  bigAngle += PI/BIGNUM;
  
  h1.moveAndDraw(bigAngle,false);
  h2.moveAndDraw(bigAngle+PI*2/3,false);
  h3.moveAndDraw(bigAngle+PI*4/3,false);
  fill(200,0,0);
  drawHeart(250,250,100);

  h1.moveAndDraw(bigAngle,true);
  h2.moveAndDraw(bigAngle+PI*2/3,true);
  h3.moveAndDraw(bigAngle+PI*4/3,true);
  
  if(frameCount > BIGNUM * 2){
     gifExport.finish();
 
  } else {
     gifExport.setDelay(10);
     gifExport.addFrame(); 
  }

  
 // gifExport.setDelay(1);
//  gifExport.addFrame();
  
   //base += .025;
  
}

class SmallHeart{
  float a;
  void moveAndDraw(float bigAngle, boolean inFront){
      
      float oldX = cos(a) * 200;
      float oldY = sin(a) * 20;
      float newX = rotatedX(oldX,oldY,bigAngle);
      float newY = rotatedY(oldX,oldY,bigAngle);  
     
       pushMatrix();
      stroke(0);
      noFill();
      translate(250,250);
      rotate(bigAngle);
      arc(0,0,400,40, inFront?0:PI, inFront?PI:PI*2   );
      popMatrix(); 
     
      if(inFront) {
        
        if(a >= 0 && a <= PI){
          fill(150,0,0);
          drawHeart(250 + newX,250 + newY,20);
        }
      } else {
        if(a >= PI && a <= 2 * PI){
          fill(150,0,0);
           drawHeart(250 + newX,250 + newY,20);
        }
      }
      a += PI/BIGNUM;  
      while( a > PI*2){
       a -= PI * 2; 
      }
  }
}


float rotatedX(float x, float y, float a){
   return x * cos(a) - y * sin(a); 
}
float rotatedY(float x, float y, float a){
   return y * cos(a) + x * sin(a); 
}

void drawHeart(float x, float y, float sz){
  
  noStroke();
   pushMatrix();
  translate(x,y);
  
  arc(-sz*.4,0,sz,sz,PI,2*PI);
  arc(sz*.4,0,sz,sz,PI,2*PI);
  triangle(-sz*.9,0,sz*.9,0,0,sz);
  popMatrix(); 
}