Multi World NPCs + patch on Player interactions

Made NPCs now work properly on multiworld system. Solved multiple issues
regarding Player Shops not giving back items properly when owner exits.
Added restriction on changing channels at FM rooms, preventing shop
owner entering Cash Shop.

scripts/npc/2100008.js

@@ -0,0 +1,59 @@
+/* Author: aaroncsn (MapleSea Like)
+	NPC Name: 		Badr
+	Map(s): 		The Burning Road: Ariant(2600000000)
+	Description: 	Ariant Plastic Surgery
+*/
+
+var status = 0;
+var beauty = 0;
+var mface = Array(20000, 20001, 20002, 20003, 20004, 20005, 20006, 20007, 20008, 20012, 20014);
+var fface = Array(21000, 21001, 21002, 21003, 21004, 21005, 21006, 21007, 21008, 21012, 21014);
+var facenew = Array();
+
+function start() {
+	status = -1;
+	action(1, 0, 0);
+}
+
+function action(mode, type, selection) {
+	if (mode == -1) {
+		cm.dispose();
+	} else {
+		if (mode == 0 && status == 0) {
+			cm.dispose();
+			return;
+		}
+		if (mode == 1)
+			status++;
+		else
+			status--;
+		if (status == 0) {
+				facenew = Array();
+				if (cm.getChar().getGender() == 0) {
+					for(var i = 0; i < mface.length; i++) {
+						facenew.push(mface[i] + cm.getChar().getFace()
+ % 1000 - (cm.getChar().getFace()
+ % 100));
+					}
+				}
+				if (cm.getChar().getGender() == 1) {
+					for(var i = 0; i < fface.length; i++) {
+						facenew.push(fface[i] + cm.getChar().getFace()
+ % 1000 - (cm.getChar().getFace()
+ % 100));
+					}
+				}
+				cm.sendStyle("Hmmm... Face of beauty glows even under cover and burning desert. With #bAriant face coupon(VIP)#k, I can make your face so much better. Choose the face you want, and I will pull out my outstanding skill for the great make over.", facenew);
+			}
+		else if (status == 1){
+			cm.dispose();
+			if (cm.haveItem(5152030) == true){
+				cm.gainItem(5152030, -1);
+				cm.setFace(facenew[selection]);
+				cm.sendOk("Enjoy your new and improved face!");
+			} else {
+				cm.sendNext("Erm... You don't seem to have the exclusive coupon for this hospital. Without the coupon, I'm afraid I can't do it for you.");
+			}
+		}
+	}
+}