beginscript;

label Trig:
	if (OtherUnitInRange(MainTrain,500))
	{
		SetGlobalVar(1,3);
		TriggerMessage(4,0xffff,0xffff);
		EndFrame();
		goto End;
	}
EndFrame();
goto Trig;



label End:
EndFrame();
goto End;

endscript;

$