action movable_glass()
{
	c_setminmax(my);
	pXent_settype(my,PH_RIGID,PH_CAPSULE  );
	pXent_setfriction (my, 50);
	pXent_setdamping (my, 100, 100);
	set (my, POLYGON);
	my.emask |= ENABLE_SONAR;
	my.event = entity_event_trace; // never put parenthesis to the function here!

}

function entity_event_trace()
{
		vec_set(my.x,camera.x +30);
	c_setminmax(my);
	pXent_settype(my,PH_RIGID,PH_CAPSULE  );
	pXent_setfriction (my, 50);
	pXent_setdamping (my, 100, 100);
	set (my, POLYGON);
	ANGLE my_pan;
	if (event_type == EVENT_SONAR)
	{
		while (geworfen ==0) 
		{
			camera.roll=0;
			set(my,POLYGON);
			vec_rotate(my.x,camera.pan);
			vec_add(my.x,camera.x);
			pXent_setposition(my, vector(30, 0, -10));
			vec_set(my.pan,camera.pan);
			my.pan = camera.pan; 
			my.tilt = camera.tilt;
			smooth(my.pan, 0.3);
			smooth(my.tilt, 0.3);
			if (mouse_right) 
			{
				geworfen =1;
			}
			wait (1);
		}
	}
}