concrete_waitfortrigger()
{
	trigger = getent("triggerorigin","targetname");
	trigger_use = getent("blokplafond","targetname");
	concrete = getent(trigger_use.target,"targetname");
	players = getentarray("player","classname");
	while(1)
	{
		trigger_use waittill("trigger", player);
		trigger thread killpeople();
		time = 0;
		concrete moveZ(-184,1);
		wait .5;
		while(time<=50) // 50 = 2.5 seconds  60 == 3 seconds
		{
			time += 1;
			wait .05;
		}
		trigger notify("stop killing");
		concrete moveZ(184,1);
		wait 3;
	}
}
killpeople()
{
	self endon("stop killing");
	while(1)
	{
		self waittill("trigger",player);
		player suicide();
		wait .05;
	}
}