random_powerup_powerup()
{
	while(isdefined(self))
	{
		powerup = get_next_powerup();
		struct = level.zombie_powerups[powerup];

		self SetModel( struct.model_name );
		self.powerup_name 	= struct.powerup_name;
		self.hint 			= struct.hint;

		if( IsDefined( struct.fx ) )
			self.fx = struct.fx;

		wait 0.2; // change this to change the cycle time
	}
}

//powerup = powerup_setup();

	if(randomint(100) < 20) // change the 20 to change the chance that this will appear, higher number = more chance to drop
		powerup thread random_powerup_powerup();