#ifndef AI_TRIGGER_LOOK
#define AI_TRIGGER_LOOK

object ai_trigger_look : ai_darkmod_base
{
	void init();
	void updateLoop();
	float playerLooksAt();
	void triggerTargets();
	float angle;
	float distance;
};
void ai_trigger_look::init()
{
	angle=getFloatKey("tol_angle");
	distance=getFloatKey("tol_distance");
	angle=sys.cos(angle);
	thread updateLoop();
}
void ai_trigger_look::updateLoop()
{
	while(!AI_DEAD || !AI_KNOCKEDOUT) // do not response if ai is dead or knocked out
	{
		while(!playerLooksAt())
		{
			sys.waitFrame();
		}
		triggerTargets();
		while(playerLooksAt())
		{
			sys.waitFrame();
		}
	}
}
float ai_trigger_look::playerLooksAt()
{
	vector orientation, viewVector;
	float dist,resAng;
	orientation=getOrigin()-$player1.getOrigin();
	dist=sys.vecLength(orientation);
	if (dist>distance) return 0;
	viewVector=$player1.getViewAngles();
	viewVector=sys.angToForward(viewVector);
	resAng=viewVector*orientation/dist;
	return (resAng>angle);	
}
void ai_trigger_look::triggerTargets()
{
	float i;
	for (i=0;i<numTargets();i++)
	{
		sys.trigger(getTarget(i));
	}
}
#endif