Initial upload

Initial upload.

_module/nss/calcmodvalue2.nss

@@ -0,0 +1,29 @@
+void main()
+{
+    object oPC = GetPCSpeaker();
+    object oItem = GetLocalObject(oPC, "MODIFY_ITEM");
+    object oCopy = GetLocalObject(oPC, "MODIFY_COPY");
+    SetCustomToken(102, IntToString(GetGold(oPC)));
+
+    //Get values of original item and modified copy, then destroy copy
+    int iCurrentValue = GetGoldPieceValue(oItem);
+    int iNewValue = GetGoldPieceValue(oCopy);
+    DestroyObject(oCopy);
+
+    //Either amount to pay, refund or no change
+    int iValue = 0;
+    int iDiff = 0;
+    if (iNewValue > iCurrentValue)
+        {
+        iValue = iNewValue - iCurrentValue;
+        iDiff = 1; //iValue is amount to pay
+        }
+    else if (iNewValue < iCurrentValue)
+        {
+        iValue = iCurrentValue - iNewValue;
+        iDiff = -1; //iValue is refund
+        };
+    SetLocalInt(oPC, "MODIFY_VALUE", iValue);
+    SetLocalInt(oPC, "MODIFY_DIFF", iDiff);
+    SetCustomToken(101, IntToString(iValue));
+}