introduce gold converting ring

data/actions/scripts/misc/changegold.lua

@@ -0,0 +1,35 @@
+local config = {
+	[3031] = {changeTo = 3035},
+	[3035] = {changeBack = 3031, changeTo = 3043},
+	[3043] = {changeBack = 3035}
+}
+
+function onUse(player, item, fromPosition, target, toPosition, isHotkey)
+	local ring = player:getSlotItem(CONST_SLOT_RING)
+	if ring == nil or ring:getId() ~= 3007 then
+		return false
+	end
+	
+	local ringCharges = ring:getAttribute(ITEM_ATTRIBUTE_CHARGES)
+	local coin = config[item:getId()]
+	if coin.changeTo and item.type == 100 then
+		item:remove()
+		player:addItem(coin.changeTo, 1)
+		if ringCharges > 1 then
+			ring:setAttribute(ITEM_ATTRIBUTE_CHARGES,(ringCharges-1))
+		else
+			ring:remove(1)
+		end
+	elseif coin.changeBack then
+		item:remove(1)
+		player:addItem(coin.changeBack, 100)
+		if ringCharges > 1 then
+			ring:setAttribute(ITEM_ATTRIBUTE_CHARGES,(ringCharges-1))
+		else
+			ring:remove(1)
+		end
+	else
+		return false
+	end
+	return true
+end