PoA_PRC8/_module/nss/mageonly.nss

#include "prc_class_const"

void main()
{
	object oDoor = OBJECT_SELF;
	object oPC = GetNearestCreature(CREATURE_TYPE_PLAYER_CHAR, PLAYER_CHAR_IS_PC);
	
	int nClass;
	
//:: Restrict based on the player's class	
	nClass = GetLevelByClass(CLASS_TYPE_WIZARD, oPC)
			+GetLevelByClass(CLASS_TYPE_SORCERER, oPC)
			+GetLevelByClass(CLASS_TYPE_DREAD_NECROMANCER, oPC)
			+GetLevelByClass(CLASS_TYPE_WARMAGE, oPC)
			+GetLevelByClass(CLASS_TYPE_SHADOWCASTER, oPC)
			+GetLevelByClass(CLASS_TYPE_SUBLIME_CHORD, oPC)
			+GetLevelByClass(CLASS_TYPE_ARCHMAGE, oPC)
			+GetLevelByClass(CLASS_TYPE_WARLOCK, oPC);	

	if (nClass >= 20)
	{
	    AssignCommand(oDoor, ActionOpenDoor(oDoor));
		SendMessageToPC(oPC, "You may pass.");
	}

	else
	{
		SendMessageToPC(oPC, "You will not pass.");
	}
}