Hi,

I want to do is that if the entities/objects in my level are not visible in the screen I don't want to play/move the objects...

Ex. code:
Code:
//--------------------------------------------------------------------
// Action: Cow
//--------------------------------------------------------------------
action act_cow()
{	
  VECTOR vecTemp;
  vec_set(vecTemp.x, my.x);
  var anim_percentage = 0;
  set(my, POLYGON);	
	
  while(1)
  {
    while( vec_to_screen(vecTemp, camera) != NULL) //visible to screen
    {		
	flagCowTest += 1;
	ent_animate(my, "CowEat", anim_percentage, NULL);				
       anim_percentage += 2 * time_step;
       anim_percentage %= 100;
       wait (1);
    }
    wait(1);
   }	
}



But the code above is not working.. I put the "flagCowTest" to know if the cow animation is played and the code is executed.. but when it's already rendered on screen the cow animation code is not executed...

I don't know why? If you have some idea, pls. let me know.
Thanks