SlashC++Programmer

 CircleMover circle;

// time step
int last = millis();
int dt = 1000 / 60;
int now = 0;
int passed = 0;
int accumulator = 0;

// render states
int renderState = 0;
int currentRenderState = 0;
int prevRenderState = 0;

void setup()
{
  size(800,600);
  circle = new CircleMover();
}

void Update()
{
   // start of time step
   int now = millis();
   int passed = now - last;
   last = now;
   accumulator += passed;

   while (accumulator >= dt)
   {
     //render states
     prevRenderState = currentRenderState;

     // update positions
     circle.Update(dt);
     accumulator -= dt;
   }
   // end of time step
}

void DrawRender()
{
   circle.draw(renderState);
}

void draw()
{
  // update
  thread("Update");

  // apply render states
  thread("DrawRender");
}