tibia-client/modules/game_npctrade/npctrade.lua

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NPCTrade = {}
-- private variables
local BUY = 1
local SELL = 2
local CURRENCY = 'gold'
local WEIGHT_UNIT = 'oz'
local LAST_INVENTORY = 10
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local npcWindow
local itemsPanel
local radioTabs
local radioItems
local searchText
local setupPanel
local quantity
local quantityScroll
local nameLabel
local priceLabel
local moneyLabel
local weightLabel
local capacityLabel
local tradeButton
local buyTab
local sellTab
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local buyWithBackpack
local ignoreCapacity
local ignoreEquipped
local showAllItems
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local playerFreeCapacity
local playerMoney
local tradeItems = {}
local playerItems
local selectedItem
-- private functions
local function clearSelectedItem()
nameLabel:clearText()
weightLabel:clearText()
priceLabel:clearText()
quantityLabel:clearText()
tradeButton:disable()
quantityScroll:setMaximum(1)
if selectedItem then
radioItems:selectWidget(nil)
selectedItem = nil
end
end
local function getCurrentTradeType()
if tradeButton:getText() == tr('Buy') then
return BUY
else
return SELL
end
end
local function getItemPrice(item)
if getCurrentTradeType() == BUY then
if buyWithBackpack:isChecked() then
if item.ptr:isStackable() then
return item.price*quantityScroll:getValue() + 20;
else
return item.price*quantityScroll:getValue() + math.ceil(quantityScroll:getValue()/20)*20
end
end
end
return item.price*quantityScroll:getValue()
end
local function getSellQuantity(item)
if not playerItems[item.ptr:getId()] then
return 0
end
local removeAmount = 0
if ignoreEquipped:isChecked() then
local localPlayer = g_game.getLocalPlayer()
for i=1,LAST_INVENTORY do
local inventoryItem = localPlayer:getInventoryItem(i)
if inventoryItem and inventoryItem:getId() == item.ptr:getId() then
removeAmount = removeAmount + inventoryItem:getCount()
end
end
end
return playerItems[item.ptr:getId()] - removeAmount
end
local function canTradeItem(item)
if getCurrentTradeType() == BUY then
return (ignoreCapacity:isChecked() or (not ignoreCapacity:isChecked() and playerFreeCapacity >= item.weight)) and playerMoney >= getItemPrice(item)
else
return getSellQuantity(item) > 0
end
end
local function refreshItem(item)
nameLabel:setText(item.name)
weightLabel:setText(string.format('%.2f', item.weight) .. ' ' .. WEIGHT_UNIT)
priceLabel:setText(getItemPrice(item) .. ' ' .. CURRENCY)
quantityLabel:setText(1)
quantityScroll:setValue(1)
if getCurrentTradeType() == BUY then
local capacityMaxCount = math.floor(playerFreeCapacity / item.weight)
if ignoreCapacity:isChecked() then
capacityMaxCount = 100
end
local priceMaxCount = math.floor(playerMoney / getItemPrice(item))
quantityScroll:setMaximum(math.max(0, math.min(100, math.min(priceMaxCount, capacityMaxCount))))
else
local removeAmount = 0
if ignoreEquipped:isChecked() then
local localPlayer = g_game.getLocalPlayer()
for i=1,LAST_INVENTORY do
local inventoryItem = localPlayer:getInventoryItem(i)
if inventoryItem and inventoryItem:getId() == item.ptr:getId() then
removeAmount = removeAmount + inventoryItem:getCount()
end
end
end
quantityScroll:setMaximum(math.max(0, math.min(100, getSellQuantity(item))))
end
setupPanel:enable()
end
local function refreshTradeItems()
local layout = itemsPanel:getLayout()
layout:disableUpdates()
clearSelectedItem()
searchText:clearText()
setupPanel:disable()
itemsPanel:destroyChildren()
if radioItems then
radioItems:destroy()
end
radioItems = RadioGroup.create()
local currentTradeItems = tradeItems[getCurrentTradeType()]
for key,item in pairs(currentTradeItems) do
local itemBox = createWidget('NPCItemBox', itemsPanel)
itemBox.item = item
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local name = item.name
local weight = string.format('%.2f', item.weight) .. ' ' .. WEIGHT_UNIT
local price = item.price .. ' ' .. CURRENCY
itemBox:setText(name .. '\n' .. weight .. '\n' .. price)
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local itemWidget = itemBox:getChildById('item')
itemWidget:setItem(item.ptr)
itemWidget.onMouseRelease = NPCTrade.itemPopup
radioItems:addWidget(itemBox)
end
layout:enableUpdates()
layout:update()
end
local function refreshPlayerGoods()
moneyLabel:setText(playerMoney .. ' ' .. CURRENCY)
capacityLabel:setText(string.format('%.2f', playerFreeCapacity) .. ' ' .. WEIGHT_UNIT)
local currentTradeType = getCurrentTradeType()
local searchFilter = searchText:getText():lower()
local foundSelectedItem = false
local items = itemsPanel:getChildCount()
for i=1,items do
local itemWidget = itemsPanel:getChildByIndex(i)
local item = itemWidget.item
local canTrade = canTradeItem(item)
itemWidget:setEnabled(canTrade)
local searchCondition = (searchFilter == '') or (searchFilter ~= '' and string.find(item.name:lower(), searchFilter) ~= nil)
local showAllItemsCondition = (currentTradeType == BUY) or (showAllItems:isChecked()) or (currentTradeType == SELL and not showAllItems:isChecked() and canTrade)
itemWidget:setVisible(searchCondition and showAllItemsCondition)
if selectedItem == item and itemWidget:isEnabled() and itemWidget:isVisible() then
foundSelectedItem = true
end
end
if not foundSelectedItem then
clearSelectedItem()
end
if selectedItem then
refreshItem(selectedItem)
end
end
-- hooked functions
local function onOpenNpcTrade(items)
tradeItems[BUY] = {}
tradeItems[SELL] = {}
for key,item in pairs(items) do
local newItem = {}
newItem.ptr = item[1]
newItem.name = item[2]
newItem.weight = item[3] / 100
if item[4] >= 0 then
newItem.price = item[4]
table.insert(tradeItems[BUY], newItem)
elseif item[5] >= 0 then
newItem.price = item[5]
table.insert(tradeItems[SELL], newItem)
else
error("server error: item name " .. item[1] .. " has neither buy or sell price.")
end
end
refreshTradeItems()
addEvent(NPCTrade.show) -- player goods has not been parsed yet
end
local function onCloseNpcTrade()
NPCTrade.hide()
end
local function onPlayerGoods(money, items)
playerMoney = money
playerItems = {}
for key,item in pairs(items) do
local id = item[1]:getId()
if not playerItems[id] then
playerItems[id] = item[2]
else
playerItems[id] = playerItems[id] + item[2]
end
end
refreshPlayerGoods()
end
local function onFreeCapacityChange(localPlayer, freeCapacity, oldFreeCapacity)
playerFreeCapacity = freeCapacity
if npcWindow:isVisible() then
refreshPlayerGoods()
end
end
local function onInventoryChange(inventory, item, oldeItem)
if selectedItem then
refreshItem(selectedItem)
end
end
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-- public functions
function NPCTrade.init()
npcWindow = displayUI('npctrade.otui')
npcWindow:setVisible(false)
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itemsPanel = npcWindow:recursiveGetChildById('itemsPanel')
searchText = npcWindow:recursiveGetChildById('searchText')
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setupPanel = npcWindow:recursiveGetChildById('setupPanel')
quantityLabel = setupPanel:getChildById('quantity')
quantityScroll = setupPanel:getChildById('quantityScroll')
nameLabel = setupPanel:getChildById('name')
priceLabel = setupPanel:getChildById('price')
moneyLabel = setupPanel:getChildById('money')
weightLabel = setupPanel:getChildById('weight')
capacityLabel = setupPanel:getChildById('capacity')
tradeButton = npcWindow:recursiveGetChildById('tradeButton')
buyWithBackpack = npcWindow:recursiveGetChildById('buyWithBackpack')
ignoreCapacity = npcWindow:recursiveGetChildById('ignoreCapacity')
ignoreEquipped = npcWindow:recursiveGetChildById('ignoreEquipped')
showAllItems = npcWindow:recursiveGetChildById('showAllItems')
buyTab = npcWindow:getChildById('buyTab')
sellTab = npcWindow:getChildById('sellTab')
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radioTabs = RadioGroup.create()
radioTabs:addWidget(buyTab)
radioTabs:addWidget(sellTab)
radioTabs:selectWidget(buyTab)
radioTabs.onSelectionChange = NPCTrade.onTradeTypeChange
if g_game.isOnline() then -- event wont be sent again when reloading modules
playerFreeCapacity = g_game.getLocalPlayer():getFreeCapacity()
end
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connect(g_game, { onGameEnd = NPCTrade.hide,
onOpenNpcTrade = onOpenNpcTrade,
onCloseNpcTrade = onCloseNpcTrade,
onPlayerGoods = onPlayerGoods } )
connect(LocalPlayer, { onFreeCapacityChange = onFreeCapacityChange,
onInventoryChange = onInventoryChange } )
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end
function NPCTrade.terminate()
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--radioTabs:destroy()
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radioTabs = nil
npcWindow:destroy()
npcWindow = nil
itemsPanel = nil
buyButton = nil
sellButton = nil
searchText = nil
buyTab = nil
sellTab = nil
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setupPanel = nil
quantityLabel = nil
quantityScroll = nil
nameLabel = nil
priceLabel = nil
moneyLabel = nil
weightLabel = nil
capacityLabel = nil
offerSelected = nil
tradeButton = nil
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disconnect(g_game, { onGameEnd = NPCTrade.hide,
onOpenNpcTrade = onOpenNpcTrade,
onCloseNpcTrade = onCloseNpcTrade,
onPlayerGoods = onPlayerGoods } )
disconnect(LocalPlayer, { onFreeCapacityChange = onFreeCapacityChange,
onInventoryChange = onInventoryChange } )
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NPCTrade = nil
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end
function NPCTrade.show()
if g_game.isOnline() then
if #tradeItems[BUY] > 0 then
radioTabs:selectWidget(buyTab)
else
radioTabs:selectWidget(sellTab)
end
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npcWindow:show()
npcWindow:raise()
npcWindow:focus()
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end
end
function NPCTrade.hide()
npcWindow:hide()
end
function NPCTrade.onItemBoxChecked(widget)
if widget:isChecked() then
local item = widget.item
selectedItem = item
refreshItem(item)
tradeButton:enable()
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end
end
function NPCTrade.onQuantityValueChange(quantity)
if quantityLabel and selectedItem then
quantityLabel:setText(quantity)
weightLabel:setText(string.format('%.2f', selectedItem.weight*quantity) .. ' ' .. WEIGHT_UNIT)
priceLabel:setText(getItemPrice(selectedItem) .. ' ' .. CURRENCY)
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end
end
function NPCTrade.onTradeTypeChange(radioTabs, selected, deselected)
tradeButton:setText(selected:getText())
selected:setOn(true)
deselected:setOn(false)
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local currentTradeType = getCurrentTradeType()
buyWithBackpack:setVisible(currentTradeType == BUY)
ignoreCapacity:setVisible(currentTradeType == BUY)
ignoreEquipped:setVisible(currentTradeType == SELL)
showAllItems:setVisible(currentTradeType == SELL)
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refreshTradeItems()
refreshPlayerGoods()
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end
function NPCTrade.onTradeClick()
if getCurrentTradeType() == BUY then
g_game.buyItem(selectedItem.ptr, quantityScroll:getValue(), ignoreCapacity:isChecked(), buyWithBackpack:isChecked())
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else
g_game.sellItem(selectedItem.ptr, quantityScroll:getValue(), ignoreEquipped:isChecked())
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end
end
function NPCTrade.onSearchTextChange()
refreshPlayerGoods()
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end
function NPCTrade.itemPopup(self, mousePosition, mouseButton)
if mouseButton == MouseRightButton then
local menu = createWidget('PopupMenu')
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menu:addOption(tr('Look'), function() return g_game.inspectNpcTrade(self:getItem()) end)
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menu:display(mousePosition)
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return true
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end
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return false
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end
function NPCTrade.onBuyWithBackpackChange()
if selectedItem then
refreshItem(selectedItem)
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end
end
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function NPCTrade.onIgnoreCapacityChange()
refreshPlayerGoods()
end
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function NPCTrade.onIgnoreEquippedChange()
refreshPlayerGoods()
end
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function NPCTrade.onShowAllItemsChange()
refreshPlayerGoods()
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end