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Diffchecker Desktop Diffchecker चलाने का सबसे सुरक्षित तरीका। Diffchecker Desktop ऐप पाएं: आपके diffs कभी आपके कंप्यूटर से बाहर नहीं जाते!Desktop पाएं

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बनाया गया 8 वर्ष पहलेDiff कभी समाप्त नहीं होता

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इस सुविधा का उपयोग जारी रखने के लिए, अपग्रेड करें Diffchecker Pro मूल्य देखें

885 लाइनें

109 जोड़े गए

लाइनें
कुल
जोड़ा गया

अक्षर
कुल
जोड़ा गया

इस सुविधा का उपयोग जारी रखने के लिए, अपग्रेड करें Diffchecker Pro मूल्य देखें

884 लाइनें

package.path = package.path .. ";data/scripts/lib/?.lua"

require ("galaxy")

require ("utility")

require ("goods")

require ("stringutility")

require ("player")

require ("faction")

require ("merchantutility")

local PublicNamespace = {}

local TradingManager = {}

TradingManager.__index = TradingManager

local function new()

local instance = {}

instance.buyPriceFactor = 1

instance.sellPriceFactor = 1

instance.tax = 0.0 -- tax is the amount of money the owner of the entity gets from transactions

instance.factionPaymentFactor = 1.0 -- the amount of money the owner of the entity pays or receives directly through transactions

instance.boughtGoods = {}

instance.soldGoods = {}

instance.numSold = 0

instance.numBought = 0

instance.buyFromOthers = true

instance.sellToOthers = true

instance.activelyRequest = false

instance.activelySell = false

instance.deliveredStations = {}

instance.deliveringStations = {}

instance.policies =

{

sellsIllegal = false,

buysIllegal = false,

sellsStolen = false,

buysStolen = false,

sellsSuspicious = false,

buysSuspicious = false,

}

-- UI

instance.boughtLines = {}

instance.soldLines = {}

instance.guiInitialized = false

instance.useTimeCounter = 0 -- time counter for using up bought products

instance.useUpGoodsEnabled = true

return setmetatable(instance, TradingManager)

end

function TradingManager:getBuysFromOthers()

return self.buyFromOthers

end

function TradingManager:getSellsToOthers()

return self.sellToOthers

end

function TradingManager:setBuysFromOthers(value)

self.buyFromOthers = value

end

function TradingManager:setSellsToOthers(value)

self.sellToOthers = value

end

-- help functions

function TradingManager:isSoldBySelf(good)

if good.illegal and not self.policies.sellsIllegal then

local msg = "This station doesn't sell illegal goods."%_t

return false, msg

end

if good.stolen and not self.policies.sellsStolen then

local msg = "This station doesn't sell stolen goods."%_t

return false, msg

end

if good.suspicious and not self.policies.sellsSuspicious then

local msg = "This station doesn't sell suspicious goods."%_t

return false, msg

end

return true

end

function TradingManager:isBoughtBySelf(good)

if good.illegal and not self.policies.buysIllegal then

local msg = "This station doesn't buy illegal goods."%_t

return false, msg

end

if good.stolen and not self.policies.buysStolen then

local msg = "This station doesn't buy stolen goods."%_t

return false, msg

end

if good.suspicious and not self.policies.buysSuspicious then

local msg = "This station doesn't buy suspicious goods."%_t

return false, msg

end

return true

end

function TradingManager:generateGoods(min, max)

min = min or 10

max = max or 15

local numGoods = math.random(min, max)

local bought = {}

local sold = {}

local existingGoods = {}

local maxNumGoods = tablelength(goodsArray)

for i = 1, numGoods do

local index = math.random(1, maxNumGoods)

local g = goodsArray[index]

local good = g:good()

-- don't trade potentially illegal goods

if self:isBoughtBySelf(good) then

if existingGoods[good.name] == nil then

good.size = round(good.size, 2)

good.price = round(good.price)

table.insert(bought, good)

existingGoods[good.name] = 1

end

for i = 1, numGoods do

local index = math.random(1, maxNumGoods)

local g = goodsArray[index]

local good = g:good()

-- don't trade potentially illegal goods

if self:isSoldBySelf(good.name) then

if existingGoods[good.name] == nil then

good.size = round(good.size, 2)

good.price = round(good.price)

table.insert(sold, good)

existingGoods[good.name] = 1

end

return bought, sold

end

function TradingManager:restoreTradingGoods(data)

self.buyPriceFactor = data.buyPriceFactor

self.sellPriceFactor = data.sellPriceFactor

self.policies = data.policies

self.boughtGoods = {}

for _, g in pairs(data.boughtGoods) do

table.insert(self.boughtGoods, tableToGood(g))

end

self.soldGoods = {}

for _, g in pairs(data.soldGoods) do

table.insert(self.soldGoods, tableToGood(g))

end

self.numBought = #self.boughtGoods

self.numSold = #self.soldGoods

if data.buyFromOthers == nil then

self.buyFromOthers = true

else

self.buyFromOthers = data.buyFromOthers

end

if data.sellToOthers == nil then

self.sellToOthers = true

else

self.sellToOthers = data.sellToOthers

end

self.activelyRequest = data.activelyRequest or false

self.activelySell = data.activelySell or false

self.deliveredStations = data.deliveredStations or {}

self.deliveringStations = data.deliveringStations or {}

end

function TradingManager:secureTradingGoods()

local data = {}

data.buyPriceFactor = self.buyPriceFactor

data.sellPriceFactor = self.sellPriceFactor

data.policies = self.policies

data.buyFromOthers = self.buyFromOthers

data.sellToOthers = self.sellToOthers

data.activelyRequest = self.activelyRequest

data.activelySell = self.activelySell

data.deliveredStations = self.deliveredStations

data.deliveringStations = self.deliveringStations

data.boughtGoods = {}

for _, g in pairs(self.boughtGoods) do

table.insert(data.boughtGoods, goodToTable(g))

end

data.soldGoods = {}

for _, g in pairs(self.soldGoods) do

table.insert(data.soldGoods, goodToTable(g))

end

return data

end

function TradingManager:initializeTrading(boughtGoodsIn, soldGoodsIn, policiesIn)

local entity = Entity()

entity:waitUntilAsyncWorkFinished()

self.policies = policiesIn or self.policies

-- generate goods only once, this adds physical goods to the entity

local generated = entity:getValue("goods_generated")

if not generated or generated ~= 1 then

entity:setValue("goods_generated", 1)

generated = false

else

generated = true

end

boughtGoodsIn = boughtGoodsIn or {}

soldGoodsIn = soldGoodsIn or {}

self.numBought = #boughtGoodsIn

self.numSold = #soldGoodsIn

self.boughtGoods = {}

for i, v in ipairs(boughtGoodsIn) do

if not generated then

local maxStock = self:getMaxStock(v.size)

if maxStock > 0 then

-- generate a random amount of things

local amount

if math.random() < 0.65 then -- what they buy is most likely not available

amount = 0

else

amount = math.random(1, maxStock)

-- limit to a max value

-- limit to 500k value at max

local maxValue = 300 * 1000 * Balancing_GetSectorRichnessFactor(Sector():getCoordinates())

local maxValue = 200 * 10000 * Balancing_GetSectorRichnessFactor(Sector():getCoordinates())

amount = math.min(maxStock, math.floor(maxValue / v.price))

-- but have at least 7 - 10

amount = math.max(amount, math.random(7, 10))

-- ... if max stock allows it

amount = math.min(amount, maxStock)

end

entity:addCargo(v, amount)

end

table.insert(self.boughtGoods, v)

end

self.soldGoods = {}

for i, v in ipairs(soldGoodsIn) do

if not generated then

local maxStock = self:getMaxStock(v.size)

if maxStock > 0 then

-- generate a random amount of things

local amount = 0

if math.random() < 0.35 then -- what they sell is most likely available

amount = 0

else

amount = math.random(1, maxStock)

-- limit to 500k value at max

local maxValue = 500 * 1000

local maxValue = 5000000

amount = math.min(maxStock, math.floor(maxValue / v.price))

-- but have at least a few

amount = math.max(amount, math.random(2, 5))

-- ... if max stock allows it

amount = math.min(amount, maxStock)

end

entity:addCargo(v, amount)

end

table.insert(self.soldGoods, v)

end

self.numBought = #self.boughtGoods

self.numSold = #self.soldGoods

end

function TradingManager:requestGoods()

self.boughtGoods = {}

self.soldGoods = {}

self.numBought = 0

self.numSold = 0

invokeServerFunction("sendGoods", Player().index)

end

function TradingManager:sendGoods(playerIndex)

local player = Player(playerIndex)

invokeClientFunction(player, "receiveGoods", self.buyPriceFactor, self.sellPriceFactor, self.boughtGoods, self.soldGoods, self.policies)

end

function TradingManager:receiveGoods(buyFactor, sellFactor, boughtGoods_in, soldGoods_in, policies_in)

self.buyPriceFactor = buyFactor

self.sellPriceFactor = sellFactor

self.policies = policies_in

self.boughtGoods = boughtGoods_in

self.soldGoods = soldGoods_in

self.numBought = #self.boughtGoods

self.numSold = #self.soldGoods

local player = Player()

local playerCraft = player.craft

if playerCraft.factionIndex == player.allianceIndex then

player = player.alliance

end

for i, good in ipairs(self.boughtGoods) do

self:updateBoughtGoodGui(i, good, self:getBuyPrice(good.name, player.index))

self:updateBoughtGoodGui(i, good, self:getBuyPrice(good.name, Player().index))

end

for i, good in ipairs(self.soldGoods) do

self:updateSoldGoodGui(i, good, self:getSellPrice(good.name, player.index))

self:updateSoldGoodGui(i, good, self:getSellPrice(good.name, Player().index))

end

function TradingManager:updateBoughtGoodGui(index, good, price)

if not self.guiInitialized then return end

local maxAmount = self:getMaxStock(good.size)

local amount = self:getNumGoods(good.name)

local line = self.boughtLines[index]

line.name.caption = good.displayName

line.stock.caption = amount .. "/" .. maxAmount

line.price.caption = createMonetaryString(price)

line.size.caption = round(good.size, 2)

line.icon.picture = good.icon

local ownCargo = 0

local ship = Entity(Player().craftIndex)

if ship then

ownCargo = ship:getCargoAmount(good) or 0

end

if ownCargo == 0 then ownCargo = "-" end

line.you.caption = tostring(ownCargo)

line:show()

end

function TradingManager:updateSoldGoodGui(index, good, price)

if not self.guiInitialized then return end

local maxAmount = self:getMaxStock(good.size)

local amount = self:getNumGoods(good.name)

local line = self.soldLines[index]

line.icon.picture = good.icon

line.name.caption = good.displayName

line.stock.caption = amount .. "/" .. maxAmount

line.price.caption = createMonetaryString(price)

line.size.caption = round(good.size, 2)

for i, good in pairs(self.soldGoods) do

local line = self.soldLines[i]

local ownCargo = 0

local ship = Entity(Player().craftIndex)

if ship then

ownCargo = math.floor((ship.freeCargoSpace or 0) / good.size)

end

if ownCargo == 0 then ownCargo = "-" end

line.you.caption = tostring(ownCargo)

end

line:show()

end

function TradingManager:updateBoughtGoodAmount(index)

local good = self.boughtGoods[index];

if good ~= nil then -- it's possible that the production may start before the initialization of the client version of the factory

local player = Player()

self:updateBoughtGoodGui(index, good, self:getBuyPrice(good.name, Player().index))

local playerCraft = player.craft

if playerCraft.factionIndex == player.allianceIndex then

player = player.alliance

end

self:updateBoughtGoodGui(index, good, self:getBuyPrice(good.name, player.index))

end

function TradingManager:updateSoldGoodAmount(index)

local good = self.soldGoods[index];

if good ~= nil then -- it's possible that the production may start before the initialization of the client version of the factory

local player = Player()

self:updateSoldGoodGui(index, good, self:getSellPrice(good.name, Player().index))

local playerCraft = player.craft

if playerCraft.factionIndex == player.allianceIndex then

player = player.alliance

end

self:updateSoldGoodGui(index, good, self:getSellPrice(good.name, player.index))

end

function TradingManager:buildBuyGui(window)

self:buildGui(window, 1)

end

function TradingManager:buildSellGui(window)

self:buildGui(window, 0)

end

function TradingManager:buildGui(window, guiType)

local buttonCaption = ""

local buttonCallback = ""

local textCallback = ""

if guiType == 1 then

buttonCaption = "Buy"%_t

buttonCallback = "onBuyButtonPressed"

textCallback = "onBuyTextEntered"

else

buttonCaption = "Sell"%_t

buttonCallback = "onSellButtonPressed"

textCallback = "onSellTextEntered"

end

local size = window.size

-- window:createFrame(Rect(size))

local pictureX = 270

local nameX = 10

local stockX = 310

local volX = 460

local priceX = 530

local youX = 630

local textBoxX = 720

local buttonX = 790

local buttonSize = 70

-- header

window:createLabel(vec2(nameX, 0), "Name"%_t, 15)

window:createLabel(vec2(stockX, 0), "Stock"%_t, 15)

window:createLabel(vec2(priceX, 0), "Cr"%_t, 15)

window:createLabel(vec2(volX, 0), "Vol"%_t, 15)

if guiType == 1 then

window:createLabel(vec2(youX, 0), "Max"%_t, 15)

else

window:createLabel(vec2(youX, 0), "You"%_t, 15)

end

local y = 25

for i = 1, 15 do

local yText = y + 6

local frame = window:createFrame(Rect(0, y, textBoxX - 10, 30 + y))

local icon = window:createPicture(Rect(pictureX, yText - 5, 29 + pictureX, 29 + yText - 5), "")

local nameLabel = window:createLabel(vec2(nameX, yText), "", 15)

local stockLabel = window:createLabel(vec2(stockX, yText), "", 15)

local priceLabel = window:createLabel(vec2(priceX, yText), "", 15)

local sizeLabel = window:createLabel(vec2(volX, yText), "", 15)

local youLabel = window:createLabel(vec2(youX, yText), "", 15)

local numberTextBox = window:createTextBox(Rect(textBoxX, yText - 6, 60 + textBoxX, 30 + yText - 6), textCallback)

local button = window:createButton(Rect(buttonX, yText - 6, window.size.x, 30 + yText - 6), buttonCaption, buttonCallback)

button.maxTextSize = 16

numberTextBox.text = "0"

numberTextBox.allowedCharacters = "0123456789"

numberTextBox.clearOnClick = 1

icon.isIcon = 1

local show = function (self)

self.icon:show()

self.frame:show()

self.name:show()

self.stock:show()

self.price:show()

self.size:show()

self.number:show()

self.button:show()

self.you:show()

end

local hide = function (self)

self.icon:hide()

self.frame:hide()

self.name:hide()

self.stock:hide()

self.price:hide()

self.size:hide()

self.number:hide()

self.button:hide()

self.you:hide()

end

local line = {icon = icon, frame = frame, name = nameLabel, stock = stockLabel, price = priceLabel, you = youLabel, size = sizeLabel, number = numberTextBox, button = button, show = show, hide = hide}

line:hide()

if guiType == 1 then

table.insert(self.soldLines, line)

else

table.insert(self.boughtLines, line)

end

y = y + 35

end

function TradingManager:onBuyTextEntered(textBox)

local enteredNumber = tonumber(textBox.text)

if enteredNumber == nil then

enteredNumber = 0

end

local newNumber = enteredNumber

local goodIndex = nil

for i, line in pairs(self.soldLines) do

if line.number.index == textBox.index then

goodIndex = i

break

end

if goodIndex == nil then return end

local good = self.soldGoods[goodIndex]

if not good then

print ("good with index " .. goodIndex .. " isn't sold.")

printEntityDebugInfo()

return

end

-- make sure the player can't buy more than the station has in stock

local stock = self:getNumGoods(good.name)

if stock < newNumber then

newNumber = stock

end

local player = Player()

local ship = player.craft

local shipFaction

if ship.factionIndex == player.allianceIndex then

shipFaction = player.alliance

end

if shipFaction == nil then

shipFaction = player

end

if ship.freeCargoSpace == nil then return end --> no cargo bay

-- make sure the player does not buy more than he can have in his cargo bay

local maxShipHold = math.floor(ship.freeCargoSpace / good.size)

local msg

if maxShipHold < newNumber then

newNumber = maxShipHold

if newNumber == 0 then

msg = "Not enough space in your cargo bay!"%_t

else

msg = "You can only store ${amount} of this good!"%_t % {amount = newNumber}

end

-- make sure the player does not buy more than he can afford (if this isn't his station)

if Faction().index ~= shipFaction.index then

local maxAffordable = math.floor(shipFaction.money / self:getSellPrice(good.name, shipFaction.index))

if shipFaction.infiniteResources then maxAffordable = math.huge end

if maxAffordable < newNumber then

newNumber = maxAffordable

if newNumber == 0 then

msg = "You can't afford any of this good!"%_t

else

msg = "You can only afford ${amount} of this good!"%_t % {amount = newNumber}

end

if msg then

self:sendError(nil, msg)

end

if newNumber ~= enteredNumber then

textBox.text = newNumber

end

function TradingManager:onSellTextEntered(textBox)

local enteredNumber = tonumber(textBox.text)

if enteredNumber == nil then

enteredNumber = 0

end

local newNumber = enteredNumber

local goodIndex = nil

for i, line in pairs(self.boughtLines) do

if line.number.index == textBox.index then

goodIndex = i

break

end

if goodIndex == nil then return end

local good = self.boughtGoods[goodIndex]

if not good then

print ("good with index " .. goodIndex .. " isn't bought")

printEntityDebugInfo();

return

end

local stock = self:getNumGoods(good.name)

local maxAmountPlaceable = self:getMaxStock(good.size) - stock;

if maxAmountPlaceable < newNumber then

newNumber = maxAmountPlaceable

end

local ship = Player().craft

local msg

-- make sure the player does not sell more than he has in his cargo bay

local amountOnPlayerShip = ship:getCargoAmount(good)

if amountOnPlayerShip == nil then return end --> no cargo bay

if amountOnPlayerShip < newNumber then

newNumber = amountOnPlayerShip

if newNumber == 0 then

msg = "You don't have any of this!"%_t

end

if msg then

self:sendError(nil, msg)

end

-- maximum number of sellable things is the amount the player has on his ship

if newNumber ~= enteredNumber then

textBox.text = newNumber

end

function TradingManager:onBuyButtonPressed(button)

local shipIndex = Player().craftIndex

local goodIndex = nil

for i, line in ipairs(self.soldLines) do

if line.button.index == button.index then

goodIndex = i

end

if goodIndex == nil then

print("internal error, good matching 'Buy' button doesn't exist.")

return

end

local amount = self.soldLines[goodIndex].number.text

if amount == "" then

amount = 0

else

amount = tonumber(amount)

end

local good = self.soldGoods[goodIndex]

if not good then

print ("internal error, good with index " .. goodIndex .. " of buy button not found.")

printEntityDebugInfo()

return

end

invokeServerFunction("sellToShip", shipIndex, good.name, amount)

end

function TradingManager:onSellButtonPressed(button)

local shipIndex = Player().craftIndex

local goodIndex = nil

for i, line in ipairs(self.boughtLines) do

if line.button.index == button.index then

goodIndex = i

end

if goodIndex == nil then

return

end

local amount = self.boughtLines[goodIndex].number.text

if amount == "" then

amount = 0

else

amount = tonumber(amount)

end

local good = self.boughtGoods[goodIndex]

if not good then

print ("internal error, good with index " .. goodIndex .. " of sell button not found.")

printEntityDebugInfo()

return

end

invokeServerFunction("buyFromShip", shipIndex, good.name, amount)

end

function TradingManager:sendError(faction, msg, ...)

if onServer() then

if faction.isPlayer then

Player(faction.index):sendChatMessage(Entity().title, 1, msg, ...)

end

elseif onClient() then

displayChatMessage(msg, Entity().title, 1)

end

function TradingManager:transferMoney(owner, from, to, amount, fromDescription, toDescription)

if from.index == to.index then return end

local ownerMoney = amount * self.factionPaymentFactor

if owner.index == from.index then

from:pay(fromDescription or "", ownerMoney)

to:receive(toDescription or "", amount)

elseif owner.index == to.index then

from:pay(fromDescription or "", amount)

to:receive(toDescription or "", ownerMoney)

else

from:pay(fromDescription or "", amount)

to:receive(toDescription or "", amount)

end

receiveTransactionTax(Entity(), amount * self.tax)

end

function TradingManager:buyFromShip(shipIndex, goodName, amount, noDockCheck)

-- check if the good can be bought

if not self:getBoughtGoodByName(goodName) == nil then

self:sendError(shipFaction, "%s isn't bought."%_t, goodName)

return

end

local shipFaction, ship = getInteractingFactionByShip(shipIndex, callingPlayer, AlliancePrivilege.SpendResources)

if not shipFaction then return end

if ship.freeCargoSpace == nil then

self:sendError(shipFaction, "Your ship has no cargo bay!"%_t)

return

end

-- check if the specific good from the player can be bought (ie. it's not illegal or something like that)

local cargos = ship:findCargos(goodName)

local good = nil

local msg = "You don't have any %s that the station buys!"%_t

local args = {goodName}

for g, amount in pairs(cargos) do

local ok

ok, msg = self:isBoughtBySelf(g)

args = {}

if ok then

good = g

break

end

if not good then

self:sendError(shipFaction, msg, unpack(args))

return

end

local station = Entity()

local stationFaction = Faction()

-- make sure the ship can not sell more than the station can have in stock

local maxAmountPlaceable = self:getMaxStock(good.size) - self:getNumGoods(good.name);

if maxAmountPlaceable < amount then

amount = maxAmountPlaceable

if maxAmountPlaceable == 0 then

self:sendError(shipFaction, "This station is not able to take any more %s."%_t, good.translatablePlural)

self:sendError(shipFaction, "This station is not able to take any more %s."%_t, good.plural)

end

-- make sure the player does not sell more than he has in his cargo bay

local amountOnShip = ship:getCargoAmount(good)

if amountOnShip < amount then

amount = amountOnShip

if amountOnShip == 0 then

self:sendError(shipFaction, "You don't have any %s on your ship"%_t, good.translatablePlural)

self:sendError(shipFaction, "You don't have any %s on your ship"%_t, good.plural)

end

if amount <= 0 then

if amount == 0 then

return

end

-- begin transaction

-- calculate price. if the seller is the owner of the station, the price is 0

local price = self:getBuyPrice(good.name, shipFaction.index) * amount

local canPay, msg, args = stationFaction:canPay(price);

if not canPay then

self:sendError(shipFaction, "This station's faction doesn't have enough money."%_t)

return

end

if not noDockCheck then

-- test the docking last so the player can know what he can buy from afar already

local errors = {}

errors[EntityType.Station] = "You must be docked to the station to trade

errors[EntityType.Station] = "You must be docked to the station to trade."%_T

errors[EntityType.Ship] = "You must be closer to the ship to trade."%_T

if not CheckShipDocked(shipFaction, ship, station, errors) then

return

end

-- give money to ship faction

shipFaction:receive(price)

stationFaction:pay(price)

-- remove goods from ship

ship:removeCargo(good, amount)

-- add goods to station

self:increaseGoods(good.name, amount)

-- trading (non-military) ships get higher relation gain

local relationsChange = GetRelationChangeFromMoney(price)

if ship:getNumArmedTurrets() <= 1 then

relationsChange = relationsChange * 1.5

end

Galaxy():changeFactionRelations(shipFaction, stationFaction, relationsChange)

end

function TradingManager:sellToShip(shipIndex, goodName, amount, noDockCheck)

local good = self:getSoldGoodByName(goodName)

if good == nil then return end

local shipFaction, ship = getInteractingFactionByShip(shipIndex, callingPlayer, AlliancePrivilege.SpendResources)

if not shipFaction then return end

if ship.freeCargoSpace == nil then

self:sendError(shipFaction, "Your ship has no cargo bay!"%_t)

return

end

local station = Entity()

local stationFaction = Faction()

-- make sure the player can not buy more than the station has in stock

local amountBuyable = self:getNumGoods(goodName)

if amountBuyable < amount then

amount = amountBuyable

if amountBuyable == 0 then

self:sendError(shipFaction, "This station has no more %s to sell."%_t, good.plural)

end

-- make sure the player does not buy more than he can have in his cargo bay

local maxShipHold = math.floor(ship.freeCargoSpace / good.size)

if maxShipHold < amount then

amount = maxShipHold

if maxShipHold == 0 then

self:sendError(shipFaction, "Your ship can not take more %s."%_t, good.plural)

end

if amount == 0 then

return

end

-- begin transaction

-- calculate price. if the owner of the station wants to buy, the price is 0

local price = self:getSellPrice(good.name, shipFaction.index) * amount

local canPay, msg, args = shipFaction:canPay(price);

if not canPay then

self:sendError(shipFaction, msg, unpack(args))

return

end

if not noDockCheck then

-- test the docking last so the player can know what he can buy from afar already

local errors = {}

errors[EntityType.Station] = "You must be docked to the station to trade."%_T

errors[EntityType.Ship] = "You must be closer to the ship to trade."%_T

if not CheckShipDocked(shipFaction, ship, station, errors) then

return

end

-- make player pay

सेव किए गए Diffs

ऑरिजनल टेक्स्ट

फ़ाइल खोलें

package.path = package.path .. ";data/scripts/lib/?.lua"
require ("galaxy")
require ("utility")
require ("goods")
require ("stringutility")
require ("player")
require ("faction")
require ("merchantutility")

local TradingManager = {}
TradingManager.__index = TradingManager

local function new()
    local instance = {}

instance.buyPriceFactor = 1
    instance.sellPriceFactor = 1
    instance.tax = 0.0 -- tax is the amount of money the owner of the entity gets from transactions
    instance.factionPaymentFactor = 1.0 -- the amount of money the owner of the entity pays or receives directly through transactions

instance.boughtGoods = {}
    instance.soldGoods = {}

instance.numSold = 0
    instance.numBought = 0

instance.buyFromOthers = true
    instance.sellToOthers = true

instance.activelyRequest = false
    instance.activelySell = false

instance.deliveredStations = {}
    instance.deliveringStations = {}

instance.policies =
    {
        sellsIllegal = false,
        buysIllegal = false,

sellsStolen = false,
        buysStolen = false,

sellsSuspicious = false,
        buysSuspicious = false,
    }

-- UI
    instance.boughtLines = {}
    instance.soldLines = {}

instance.guiInitialized = false
    instance.useTimeCounter = 0 -- time counter for using up bought products
    instance.useUpGoodsEnabled = true

return setmetatable(instance, TradingManager)
end

function TradingManager:getBuysFromOthers()
    return self.buyFromOthers
end

function TradingManager:getSellsToOthers()
    return self.sellToOthers
end

function TradingManager:setBuysFromOthers(value)
    self.buyFromOthers = value
end

function TradingManager:setSellsToOthers(value)
    self.sellToOthers = value
end

-- help functions
function TradingManager:isSoldBySelf(good)
    if good.illegal and not self.policies.sellsIllegal then
        local msg = "This station doesn't sell illegal goods."%_t
        return false, msg
    end

if good.stolen and not self.policies.sellsStolen then
        local msg = "This station doesn't sell stolen goods."%_t
        return false, msg
    end

if good.suspicious and not self.policies.sellsSuspicious then
        local msg = "This station doesn't sell suspicious goods."%_t
        return false, msg
    end

return true
end

function TradingManager:isBoughtBySelf(good)
    if good.illegal and not self.policies.buysIllegal then
        local msg = "This station doesn't buy illegal goods."%_t
        return false, msg
    end

if good.stolen and not self.policies.buysStolen then
        local msg = "This station doesn't buy stolen goods."%_t
        return false, msg
    end

if good.suspicious and not self.policies.buysSuspicious then
        local msg = "This station doesn't buy suspicious goods."%_t
        return false, msg
    end

return true
end

function TradingManager:generateGoods(min, max)
    min = min or 10
    max = max or 15

local numGoods = math.random(min, max)

local bought = {}
    local sold = {}
    local existingGoods = {}

local maxNumGoods = tablelength(goodsArray)

for i = 1, numGoods do
        local index = math.random(1, maxNumGoods)
        local g = goodsArray[index]
        local good = g:good()

-- don't trade potentially illegal goods
        if self:isBoughtBySelf(good) then

if existingGoods[good.name] == nil then

good.size = round(good.size, 2)
                good.price = round(good.price)
                table.insert(bought, good)
                existingGoods[good.name] = 1
            end

end
    end

for i = 1, numGoods do
        local index = math.random(1, maxNumGoods)
        local g = goodsArray[index]
        local good = g:good()

-- don't trade potentially illegal goods
        if self:isSoldBySelf(good.name) then

if existingGoods[good.name] == nil then
                good.size = round(good.size, 2)
                good.price = round(good.price)

table.insert(sold, good)
                existingGoods[good.name] = 1
            end
        end
    end

return bought, sold
end

function TradingManager:restoreTradingGoods(data)
    self.buyPriceFactor = data.buyPriceFactor
    self.sellPriceFactor = data.sellPriceFactor
    self.policies = data.policies

self.boughtGoods = {}
    for _, g in pairs(data.boughtGoods) do
        table.insert(self.boughtGoods, tableToGood(g))
    end

self.soldGoods = {}
    for _, g in pairs(data.soldGoods) do
        table.insert(self.soldGoods, tableToGood(g))
    end

self.numBought = #self.boughtGoods
    self.numSold = #self.soldGoods

if data.buyFromOthers == nil then
        self.buyFromOthers = true
    else
        self.buyFromOthers = data.buyFromOthers
    end

if data.sellToOthers == nil then
        self.sellToOthers = true
    else
        self.sellToOthers = data.sellToOthers
    end

self.activelyRequest = data.activelyRequest or false
    self.activelySell = data.activelySell or false

self.deliveredStations = data.deliveredStations or {}
    self.deliveringStations = data.deliveringStations or {}
end

function TradingManager:secureTradingGoods()
    local data = {}
    data.buyPriceFactor = self.buyPriceFactor
    data.sellPriceFactor = self.sellPriceFactor
    data.policies = self.policies

data.buyFromOthers = self.buyFromOthers
    data.sellToOthers = self.sellToOthers
    data.activelyRequest = self.activelyRequest
    data.activelySell = self.activelySell

data.deliveredStations = self.deliveredStations
    data.deliveringStations = self.deliveringStations

data.boughtGoods = {}
    for _, g in pairs(self.boughtGoods) do
        table.insert(data.boughtGoods, goodToTable(g))
    end

data.soldGoods = {}
    for _, g in pairs(self.soldGoods) do
        table.insert(data.soldGoods, goodToTable(g))
    end

return data
end

function TradingManager:initializeTrading(boughtGoodsIn, soldGoodsIn, policiesIn)

local entity = Entity()
    entity:waitUntilAsyncWorkFinished()

self.policies = policiesIn or self.policies

-- generate goods only once, this adds physical goods to the entity
    local generated = entity:getValue("goods_generated")
    if not generated or generated ~= 1 then
        entity:setValue("goods_generated", 1)
        generated = false
    else
        generated = true
    end

boughtGoodsIn = boughtGoodsIn or {}
    soldGoodsIn = soldGoodsIn or {}

self.numBought = #boughtGoodsIn
    self.numSold = #soldGoodsIn

self.boughtGoods = {}

for i, v in ipairs(boughtGoodsIn) do
        if not generated then
            local maxStock = self:getMaxStock(v.size)
            if maxStock > 0 then

-- generate a random amount of things
                local amount
                if math.random() < 0.65 then -- what they buy is most likely not available
                    amount = 0
                else
                    amount = math.random(1, maxStock)

-- limit to a max value
                    local maxValue = 300 * 1000 * Balancing_GetSectorRichnessFactor(Sector():getCoordinates())
                    amount = math.min(maxStock, math.floor(maxValue / v.price))

-- but have at least 7 - 10
                    amount = math.max(amount, math.random(7, 10))

-- ... if max stock allows it
                    amount = math.min(amount, maxStock)
                end

entity:addCargo(v, amount)
            end
        end

table.insert(self.boughtGoods, v)
    end

self.soldGoods = {}

for i, v in ipairs(soldGoodsIn) do
        if not generated then
            local maxStock = self:getMaxStock(v.size)
            if maxStock > 0 then

-- generate a random amount of things
                local amount = 0
                if math.random() < 0.35 then -- what they sell is most likely available
                    amount = 0
                else
                    amount = math.random(1, maxStock)

-- limit to 500k value at max
                    local maxValue = 500 * 1000
                    amount = math.min(maxStock, math.floor(maxValue / v.price))

-- but have at least a few
                    amount = math.max(amount, math.random(2, 5))

-- ... if max stock allows it
                    amount = math.min(amount, maxStock)
                end

entity:addCargo(v, amount)
            end
        end

table.insert(self.soldGoods, v)
    end

self.numBought = #self.boughtGoods
    self.numSold = #self.soldGoods

end

function TradingManager:requestGoods()
    self.boughtGoods = {}
    self.soldGoods = {}

self.numBought = 0
    self.numSold = 0

invokeServerFunction("sendGoods", Player().index)
end

function TradingManager:sendGoods(playerIndex)

local player = Player(playerIndex)

invokeClientFunction(player, "receiveGoods", self.buyPriceFactor, self.sellPriceFactor, self.boughtGoods, self.soldGoods, self.policies)
end

function TradingManager:receiveGoods(buyFactor, sellFactor, boughtGoods_in, soldGoods_in, policies_in)

self.buyPriceFactor = buyFactor
    self.sellPriceFactor = sellFactor

self.policies = policies_in

self.boughtGoods = boughtGoods_in
    self.soldGoods = soldGoods_in

self.numBought = #self.boughtGoods
    self.numSold = #self.soldGoods

local player = Player()
    local playerCraft = player.craft
    if playerCraft.factionIndex == player.allianceIndex then
        player = player.alliance
    end

for i, good in ipairs(self.boughtGoods) do
        self:updateBoughtGoodGui(i, good, self:getBuyPrice(good.name, player.index))
    end

for i, good in ipairs(self.soldGoods) do
        self:updateSoldGoodGui(i, good, self:getSellPrice(good.name, player.index))
    end

end

function TradingManager:updateBoughtGoodGui(index, good, price)

if not self.guiInitialized then return end

local maxAmount = self:getMaxStock(good.size)
    local amount = self:getNumGoods(good.name)

local line = self.boughtLines[index]

line.name.caption = good.displayName
    line.stock.caption = amount .. "/" .. maxAmount
    line.price.caption = createMonetaryString(price)
    line.size.caption = round(good.size, 2)
    line.icon.picture = good.icon

local ownCargo = 0
    local ship = Entity(Player().craftIndex)
    if ship then
        ownCargo = ship:getCargoAmount(good) or 0
    end
    if ownCargo == 0 then ownCargo = "-" end
    line.you.caption = tostring(ownCargo)

line:show()
end

function TradingManager:updateSoldGoodGui(index, good, price)

if not self.guiInitialized then return end

local maxAmount = self:getMaxStock(good.size)
    local amount = self:getNumGoods(good.name)

local line = self.soldLines[index]

line.icon.picture = good.icon
    line.name.caption = good.displayName
    line.stock.caption = amount .. "/" .. maxAmount
    line.price.caption = createMonetaryString(price)
    line.size.caption = round(good.size, 2)

for i, good in pairs(self.soldGoods) do
        local line = self.soldLines[i]

local ownCargo = 0
        local ship = Entity(Player().craftIndex)
        if ship then
            ownCargo = math.floor((ship.freeCargoSpace or 0) / good.size)
        end

if ownCargo == 0 then ownCargo = "-" end
        line.you.caption = tostring(ownCargo)
    end

line:show()

end

function TradingManager:updateBoughtGoodAmount(index)

local good = self.boughtGoods[index];

if good ~= nil then -- it's possible that the production may start before the initialization of the client version of the factory
        local player = Player()
        local playerCraft = player.craft
        if playerCraft.factionIndex == player.allianceIndex then
            player = player.alliance
        end

self:updateBoughtGoodGui(index, good, self:getBuyPrice(good.name, player.index))
    end

end

function TradingManager:updateSoldGoodAmount(index)

local good = self.soldGoods[index];

self:updateSoldGoodGui(index, good, self:getSellPrice(good.name, player.index))
    end
end

function TradingManager:buildBuyGui(window)
    self:buildGui(window, 1)
end

function TradingManager:buildSellGui(window)
    self:buildGui(window, 0)
end

function TradingManager:buildGui(window, guiType)

local buttonCaption = ""
    local buttonCallback = ""
    local textCallback = ""

if guiType == 1 then
        buttonCaption = "Buy"%_t
        buttonCallback = "onBuyButtonPressed"
        textCallback = "onBuyTextEntered"
    else
        buttonCaption = "Sell"%_t
        buttonCallback = "onSellButtonPressed"
        textCallback = "onSellTextEntered"
    end

local size = window.size

--    window:createFrame(Rect(size))

local pictureX = 270
    local nameX = 10
    local stockX = 310
    local volX = 460
    local priceX = 530
    local youX = 630
    local textBoxX = 720
    local buttonX = 790

local buttonSize = 70

-- header
    window:createLabel(vec2(nameX, 0), "Name"%_t, 15)
    window:createLabel(vec2(stockX, 0), "Stock"%_t, 15)
    window:createLabel(vec2(priceX, 0), "Cr"%_t, 15)
    window:createLabel(vec2(volX, 0), "Vol"%_t, 15)

if guiType == 1 then
        window:createLabel(vec2(youX, 0), "Max"%_t, 15)
    else
        window:createLabel(vec2(youX, 0), "You"%_t, 15)
    end

local y = 25
    for i = 1, 15 do

local yText = y + 6

local frame = window:createFrame(Rect(0, y, textBoxX - 10, 30 + y))

local icon = window:createPicture(Rect(pictureX, yText - 5, 29 + pictureX, 29 + yText - 5), "")
        local nameLabel = window:createLabel(vec2(nameX, yText), "", 15)
        local stockLabel = window:createLabel(vec2(stockX, yText), "", 15)
        local priceLabel = window:createLabel(vec2(priceX, yText), "", 15)
        local sizeLabel = window:createLabel(vec2(volX, yText), "", 15)
        local youLabel = window:createLabel(vec2(youX, yText), "", 15)
        local numberTextBox = window:createTextBox(Rect(textBoxX, yText - 6, 60 + textBoxX, 30 + yText - 6), textCallback)
        local button = window:createButton(Rect(buttonX, yText - 6, window.size.x, 30 + yText - 6), buttonCaption, buttonCallback)

button.maxTextSize = 16

numberTextBox.text = "0"
        numberTextBox.allowedCharacters = "0123456789"
        numberTextBox.clearOnClick = 1

icon.isIcon = 1

local show = function (self)
            self.icon:show()
            self.frame:show()
            self.name:show()
            self.stock:show()
            self.price:show()
            self.size:show()
            self.number:show()
            self.button:show()
            self.you:show()
        end
        local hide = function (self)
            self.icon:hide()
            self.frame:hide()
            self.name:hide()
            self.stock:hide()
            self.price:hide()
            self.size:hide()
            self.number:hide()
            self.button:hide()
            self.you:hide()
        end

if guiType == 1 then
            table.insert(self.soldLines, line)
        else
            table.insert(self.boughtLines, line)
        end

y = y + 35
    end

end

function TradingManager:onBuyTextEntered(textBox)

local enteredNumber = tonumber(textBox.text)
    if enteredNumber == nil then
        enteredNumber = 0
    end

local newNumber = enteredNumber

local goodIndex = nil
    for i, line in pairs(self.soldLines) do
        if line.number.index == textBox.index then
            goodIndex = i
            break
        end
    end

if goodIndex == nil then return end

local good = self.soldGoods[goodIndex]

if not good then
        print ("good with index " .. goodIndex .. " isn't sold.")
        printEntityDebugInfo()
        return
    end

-- make sure the player can't buy more than the station has in stock
    local stock = self:getNumGoods(good.name)

if stock < newNumber then
        newNumber = stock
    end

local player = Player()
    local ship = player.craft
    local shipFaction
    if ship.factionIndex == player.allianceIndex then
        shipFaction = player.alliance
    end
    if shipFaction == nil then
        shipFaction = player
    end
    if ship.freeCargoSpace == nil then return end --> no cargo bay

-- make sure the player does not buy more than he can have in his cargo bay
    local maxShipHold = math.floor(ship.freeCargoSpace / good.size)
    local msg

if maxShipHold < newNumber then
        newNumber = maxShipHold
        if newNumber == 0 then
            msg = "Not enough space in your cargo bay!"%_t
        else
            msg = "You can only store ${amount} of this good!"%_t % {amount = newNumber}
        end
    end

-- make sure the player does not buy more than he can afford (if this isn't his station)
    if Faction().index ~= shipFaction.index then
        local maxAffordable = math.floor(shipFaction.money / self:getSellPrice(good.name, shipFaction.index))
        if shipFaction.infiniteResources then maxAffordable = math.huge end

if maxAffordable < newNumber then
            newNumber = maxAffordable

if newNumber == 0 then
                msg = "You can't afford any of this good!"%_t
            else
                msg = "You can only afford ${amount} of this good!"%_t % {amount = newNumber}
            end
        end
    end

if msg then
        self:sendError(nil, msg)
    end

if newNumber ~= enteredNumber then
        textBox.text = newNumber
    end
end

function TradingManager:onSellTextEntered(textBox)

local enteredNumber = tonumber(textBox.text)
    if enteredNumber == nil then
        enteredNumber = 0
    end

local newNumber = enteredNumber

local goodIndex = nil
    for i, line in pairs(self.boughtLines) do
        if line.number.index == textBox.index then
            goodIndex = i
            break
        end
    end
    if goodIndex == nil then return end

local good = self.boughtGoods[goodIndex]
    if not good then
        print ("good with index " .. goodIndex .. " isn't bought")
        printEntityDebugInfo();
        return
    end

local stock = self:getNumGoods(good.name)

local maxAmountPlaceable = self:getMaxStock(good.size) - stock;
    if maxAmountPlaceable < newNumber then
        newNumber = maxAmountPlaceable
    end

local ship = Player().craft

local msg

-- make sure the player does not sell more than he has in his cargo bay
    local amountOnPlayerShip = ship:getCargoAmount(good)
    if amountOnPlayerShip == nil then return end --> no cargo bay

if amountOnPlayerShip < newNumber then
        newNumber = amountOnPlayerShip
        if newNumber == 0 then
            msg = "You don't have any of this!"%_t
        end
    end

if msg then
        self:sendError(nil, msg)
    end

-- maximum number of sellable things is the amount the player has on his ship
    if newNumber ~= enteredNumber then
        textBox.text = newNumber
    end
end

function TradingManager:onBuyButtonPressed(button)

local shipIndex = Player().craftIndex
    local goodIndex = nil

for i, line in ipairs(self.soldLines) do
        if line.button.index == button.index then
            goodIndex = i
        end
    end

if goodIndex == nil then
        print("internal error, good matching 'Buy' button doesn't exist.")
        return
    end

local amount = self.soldLines[goodIndex].number.text
    if amount == "" then
        amount = 0
    else
        amount = tonumber(amount)
    end

local good = self.soldGoods[goodIndex]
    if not good then
        print ("internal error, good with index " .. goodIndex .. " of buy button not found.")
        printEntityDebugInfo()
        return
    end

invokeServerFunction("sellToShip", shipIndex, good.name, amount)
end

function TradingManager:onSellButtonPressed(button)

local shipIndex = Player().craftIndex
    local goodIndex = nil

for i, line in ipairs(self.boughtLines) do
        if line.button.index == button.index then
            goodIndex = i
        end
    end

if goodIndex == nil then
        return
    end

local amount = self.boughtLines[goodIndex].number.text
    if amount == "" then
        amount = 0
    else
        amount = tonumber(amount)
    end

local good = self.boughtGoods[goodIndex]
    if not good then
        print ("internal error, good with index " .. goodIndex .. " of sell button not found.")
        printEntityDebugInfo()
        return
    end

invokeServerFunction("buyFromShip", shipIndex, good.name, amount)

end

function TradingManager:sendError(faction, msg, ...)
    if onServer() then
        if faction.isPlayer then
            Player(faction.index):sendChatMessage(Entity().title, 1, msg, ...)
        end
    elseif onClient() then
        displayChatMessage(msg, Entity().title, 1)
    end
end

function TradingManager:transferMoney(owner, from, to, amount, fromDescription, toDescription)
    if from.index == to.index then return end

local ownerMoney = amount * self.factionPaymentFactor

if owner.index == from.index then
        from:pay(fromDescription or "", ownerMoney)
        to:receive(toDescription or "", amount)
    elseif owner.index == to.index then
        from:pay(fromDescription or "", amount)
        to:receive(toDescription or "", ownerMoney)
    else
        from:pay(fromDescription or "", amount)
        to:receive(toDescription or "", amount)
    end

receiveTransactionTax(Entity(), amount * self.tax)
end

function TradingManager:buyFromShip(shipIndex, goodName, amount, noDockCheck)

-- check if the good can be bought
    if not self:getBoughtGoodByName(goodName) == nil then
        self:sendError(shipFaction, "%s isn't bought."%_t, goodName)
        return
    end

local shipFaction, ship = getInteractingFactionByShip(shipIndex, callingPlayer, AlliancePrivilege.SpendResources)
    if not shipFaction then return end

if ship.freeCargoSpace == nil then
        self:sendError(shipFaction, "Your ship has no cargo bay!"%_t)
        return
    end

-- check if the specific good from the player can be bought (ie. it's not illegal or something like that)
    local cargos = ship:findCargos(goodName)
    local good = nil
    local msg = "You don't have any %s that the station buys!"%_t
    local args = {goodName}

for g, amount in pairs(cargos) do
        local ok
        ok, msg = self:isBoughtBySelf(g)
        args = {}
        if ok then
            good = g
            break
        end
    end

if not good then
        self:sendError(shipFaction, msg, unpack(args))
        return
    end

local station = Entity()
    local stationFaction = Faction()

-- make sure the ship can not sell more than the station can have in stock
    local maxAmountPlaceable = self:getMaxStock(good.size) - self:getNumGoods(good.name);

if maxAmountPlaceable < amount then
        amount = maxAmountPlaceable

if maxAmountPlaceable == 0 then
            self:sendError(shipFaction, "This station is not able to take any more %s."%_t, good.translatablePlural)
        end
    end

-- make sure the player does not sell more than he has in his cargo bay
    local amountOnShip = ship:getCargoAmount(good)

if amountOnShip < amount then
        amount = amountOnShip

if amountOnShip == 0 then
            self:sendError(shipFaction, "You don't have any %s on your ship"%_t, good.translatablePlural)
        end
    end

if amount <= 0 then
        return
    end

-- begin transaction
    -- calculate price. if the seller is the owner of the station, the price is 0
    local price = self:getBuyPrice(good.name, shipFaction.index) * amount

local canPay, msg, args = stationFaction:canPay(price);
    if not canPay then
        self:sendError(shipFaction, "This station's faction doesn't have enough money."%_t)
        return
    end

if not noDockCheck then
        -- test the docking last so the player can know what he can buy from afar already
        local errors = {}
        errors[EntityType.Station] = "You must be docked to the station to trade."%_T
        errors[EntityType.Ship] = "You must be closer to the ship to trade."%_T
        if not CheckShipDocked(shipFaction, ship, station, errors) then
            return
        end
    end

local x, y = Sector():getCoordinates()
    local fromDescription = Format("\\s(%1%:%2%) %3% bought %4% %5% for %6% credits."%_T, x, y, station.translatedTitle, math.floor(amount), good.translatablePlural, createMonetaryString(price))
    local toDescription = Format("\\s(%1%:%2%) %3% sold %4% %5% for %6% credits."%_T, x, y, ship.name, math.floor(amount), good.translatablePlural, createMonetaryString(price))

-- give money to ship faction
    self:transferMoney(stationFaction, stationFaction, shipFaction, price, fromDescription, toDescription)

-- remove goods from ship
    ship:removeCargo(good, amount)

-- trading (non-military) ships get higher relation gain
    local relationsChange = GetRelationChangeFromMoney(price)
    if ship:getNumArmedTurrets() <= 1 then
        relationsChange = relationsChange * 1.5
    end

Galaxy():changeFactionRelations(shipFaction, stationFaction, relationsChange)

-- add goods to station, do this last so the UI update that comes with the sync already has the new relations
    self:increaseGoods(good.name, amount)
end

function TradingManager:sellToShip(shipIndex, goodName, amount, noDockCheck)

local good = self:getSoldGoodByName(goodName)
    if good == nil then return end

local shipFaction, ship = getInteractingFactionByShip(shipIndex, callingPlayer, AlliancePrivilege.SpendResources)
    if not shipFaction then return end

if ship.freeCargoSpace == nil then
        self:sendError(shipFaction, "Your ship has no cargo bay!"%_t)
        return
    end

local station = Entity()
    local stationFaction = Faction()

-- make sure the player can not buy more than the station has in stock
    local amountBuyable = self:getNumGoods(goodName)

if amountBuyable < amount then
        amount = amountBuyable

if amountBuyable == 0 then
             self:sendError(shipFaction, "This station has no more %s to sell."%_t, good.translatablePlural)
        end
    end

-- make sure the player does not buy more than he can have in his cargo bay
    local maxShipHold = math.floor(ship.freeCargoSpace / good.size)

if maxShipHold < amount then
        amount = maxShipHold

if maxShipHold == 0 then
            self:sendError(shipFaction, "Your ship can not take more %s."%_t, good.translatablePlural)
        end
    end

if amount <= 0 then
        return
    end

-- begin transaction
    -- calculate price. if the owner of the station wants to buy, the price is 0
    local price = self:getSellPrice(good.name, shipFaction.index) * amount

local canPay, msg, args = shipFaction:canPay(price);
    if not canPay then
        self:sendError(shipFaction, msg, unpack(args))
        return
    end

local x, y = Sector():getCoordinates()
    local fromDescription = Format("\\s(%1%:%2%) %3% bought %4% %5% for %6% credits."%_T, x, y, ship.translatedTitle, math.floor(amount), good.translatablePlural, createMonetaryString(price))
    local toDescription = Format("\\s(%1%:%2%) %3% sold %4% %5% for %6% credits."%_T, x, y, station.name, math.floor(amount), good.translatablePlural, createMonetaryString(price))

-- make player pay
    self:transferMoney(stationFaction, shipFaction, stationFaction, price, fromDescription, toDescription)

-- give goods to player
    ship:addCargo(good, amount)

Galaxy():changeFactionRelations(shipFaction, stationFaction, relationsChange)

-- remove goods from station, do this last so the UI update that comes with the sync already has the new relations
    self:decreaseGoods(good.name, amount)

end

-- convenience function for buying goods from another faction, meant to be called from external. They're not removed from another ship, they just appear
function TradingManager:buyGoods(good, amount, otherFactionIndex, monetaryTransactionOnly)

-- check if the good is even bought by the station
    if not self:getBoughtGoodByName(good.name) == nil then return 1 end

local ok = self:isBoughtBySelf(good)
    if not ok then return 4 end

local stationFaction = Faction()
    local otherFaction = Faction(otherFactionIndex)

-- make sure the transaction can not sell more than the station can have in stock
    local buyable = self:getMaxStock(good.size) - self:getNumGoods(good.name);
    amount = math.min(buyable, amount)
    if amount <= 0 then return 2 end

-- begin transaction
    -- calculate price. if the seller is the owner of the station, the price is 0
    local price = self:getBuyPrice(good.name, otherFactionIndex) * amount

local canPay, msg, args = stationFaction:canPay(price);
    if not canPay then return 3 end

local x, y = Sector():getCoordinates()
    local fromDescription = Format("\\s(%1%:%2%) %3% bought %4% %5% for %6% credits."%_T, x, y, Entity().translatedTitle, math.floor(amount), good.translatablePlural, createMonetaryString(price))
    local toDescription = Format("\\s(%1%:%2%): sold %3% %4% for %5% credits."%_T, x, y, math.floor(amount), good.translatablePlural, createMonetaryString(price))

-- give money to other faction
    self:transferMoney(stationFaction, stationFaction, otherFaction, price, fromDescription, toDescription)

local relationsChange = GetRelationChangeFromMoney(price)
    Galaxy():changeFactionRelations(otherFaction, stationFaction, relationsChange)

if not monetaryTransactionOnly then
        -- add goods to station, do this last so the UI update that comes with the sync already has the new relations
        self:increaseGoods(good.name, amount)
    end

return 0
end

-- convenience function for selling goods to another faction. They're not added to another ship, they just disappear
function TradingManager:sellGoods(good, amount, otherFactionIndex, monetaryTransactionOnly)

local stationFaction = Faction()
    local otherFaction = Faction(otherFactionIndex)

local sellable = self:getNumGoods(good.name)
    amount = math.min(sellable, amount)
    if amount <= 0 then return 1 end

local price = self:getSellPrice(good.name, otherFactionIndex) * amount
    local canPay = otherFaction:canPay(price);
    if not canPay then return 2 end

local x, y = Sector():getCoordinates()
    local toDescription = Format("\\s(%1%:%2%) %3% sold %4% %5% for %6% credits."%_T, x, y, Entity().translatedTitle, math.floor(amount), good.translatablePlural, createMonetaryString(price))
    local fromDescription = Format("\\s(%1%:%2%): Bought %3% %4% for %5% credits."%_T, x, y, math.floor(amount), good.translatablePlural, createMonetaryString(price))

-- make other faction pay
    self:transferMoney(stationFaction, otherFaction, stationFaction, price, fromDescription, toDescription)

local relationsChange = GetRelationChangeFromMoney(price)
    Galaxy():changeFactionRelations(otherFaction, stationFaction, relationsChange)

if not monetaryTransactionOnly then
        -- remove goods from station, do this last so the UI update that comes with the sync already has the new relations
        self:decreaseGoods(good.name, amount)
    end

return 0
end

function TradingManager:increaseGoods(name, delta)

local entity = Entity()

for i, good in pairs(self.soldGoods) do
        if good.name == name then
            -- increase
            local current = entity:getCargoAmount(good)
            delta = math.min(delta, self:getMaxStock(good.size) - current)
            delta = math.max(delta, 0)

entity:addCargo(good, delta)

broadcastInvokeClientFunction("updateSoldGoodAmount", i)
        end
    end

for i, good in pairs(self.boughtGoods) do
        if good.name == name then
            -- increase
            local current = entity:getCargoAmount(good)
            delta = math.min(delta, self:getMaxStock(good.size) - current)
            delta = math.max(delta, 0)

entity:addCargo(good, delta)

broadcastInvokeClientFunction("updateBoughtGoodAmount", i)
        end
    end

end

function TradingManager:decreaseGoods(name, amount)

local entity = Entity()

for i, good in pairs(self.soldGoods) do
        if good.name == name then
            entity:removeCargo(good, amount)

broadcastInvokeClientFunction("updateSoldGoodAmount", i)
        end
    end

for i, good in pairs(self.boughtGoods) do
        if good.name == name then
            entity:removeCargo(good, amount)

broadcastInvokeClientFunction("updateBoughtGoodAmount", i)
        end
    end

end

function TradingManager:useUpBoughtGoods(timeStep)

if not self.useUpGoodsEnabled then return end

self.useTimeCounter = self.useTimeCounter + timeStep

if self.useTimeCounter > 5 then
        self.useTimeCounter = 0

if math.random () < 0.5 then

local amount = math.random(1, 6)
            local good = self.boughtGoods[math.random(1, #self.boughtGoods)]

if good ~= nil then
                self:decreaseGoods(good.name, amount)
            end
        end
    end

end

function TradingManager:getBoughtGoods()
    local result = {}

for i, good in pairs(self.boughtGoods) do
        table.insert(result, good.name)
    end

return unpack(result)
end

function TradingManager:getSoldGoods()
    local result = {}

for i, good in pairs(self.soldGoods) do
        table.insert(result, good.name)
    end

return unpack(result)
end

function TradingManager:getStock(name)
    return self:getNumGoods(name), self:getMaxGoods(name)
end

function TradingManager:getNumGoods(name)
    local entity = Entity()

local g = goods[name]
    if not g then return 0 end

local good = g:good()
    if not good then return 0 end

return entity:getCargoAmount(good)
end

function TradingManager:getMaxGoods(name)
    local amount = 0

for i, good in pairs(self.soldGoods) do
        if good.name == name then
            return self:getMaxStock(good.size)
        end
    end

for i, good in pairs(self.boughtGoods) do
        if good.name == name then
            return self:getMaxStock(good.size)
        end
    end

return amount
end

function TradingManager:getGoodSize(name)

for i, good in pairs(self.soldGoods) do
        if good.name == name then
            return good.size
        end
    end

for i, good in pairs(self.boughtGoods) do
        if good.name == name then
            return good.size
        end
    end

print ("error: " .. name .. " is neither bought nor sold")
end

function TradingManager:getMaxStock(goodSize)

local entity = Entity()

local space = entity.maxCargoSpace
    local slots = self.numBought + self.numSold

if slots > 0 then space = space / slots end

if space / goodSize > 100 then
        -- round to 100
        return math.min(25000, round(space / goodSize / 100) * 100)
    else
        -- not very much space already, don't round
        return math.floor(space / goodSize)
    end
end

function TradingManager:getBoughtGoodByName(name)
    for _, good in pairs(self.boughtGoods) do
        if good.name == name then
            return good
        end
    end
end

function TradingManager:getSoldGoodByName(name)
    for _, good in pairs(self.soldGoods) do
        if good.name == name then
            return good
        end
    end
end

function TradingManager:getGoodByName(name)
    for _, good in pairs(self.boughtGoods) do
        if good.name == name then
            return good
        end
    end

for _, good in pairs(self.soldGoods) do
        if good.name == name then
            return good
        end
    end
end

-- price for which goods are bought by this from others
function TradingManager:getBuyPrice(goodName, sellingFaction)

local good = self:getBoughtGoodByName(goodName)
    if not good then return 0 end

-- empty stock -> higher price
    local maxStock = self:getMaxStock(good.size)
    local factor = 1

if maxStock > 0 then
        factor = self:getNumGoods(goodName) / maxStock -- 0 to 1 where 1 is 'full stock'
        factor = 1 - factor -- 1 to 0 where 0 is 'full stock'
        factor = factor * 0.4 -- 0.4 to 0
        factor = factor + 0.8 -- 1.2 to 0.8; 'no goods' to 'full'
    end

local relationFactor = 1
    if sellingFaction then
        local sellerIndex = nil
        if type(sellingFaction) == "number" then
            sellerIndex = sellingFaction
        else
            sellerIndex = sellingFaction.index
        end

if sellerIndex then
            local relations = Faction():getRelations(sellerIndex)

if relations < -10000 then
                -- bad relations: faction pays less for the goods
                -- 10% to 100% from -100.000 to -10.000
                relationFactor = lerp(relations, -100000, -10000, 0.1, 1.0)
            elseif relations >= 50000 then
                -- very good relations: factions pays MORE for the goods
                -- 100% to 120% from 80.000 to 100.000
                relationFactor = lerp(relations, 80000, 100000, 1.0, 1.15)
            end

if Faction().index == sellerIndex then relationFactor = 0 end
        end
    end

local basePrice = round(good.price * self.buyPriceFactor)
    local price = round(good.price * relationFactor * factor * self.buyPriceFactor)

return price, basePrice
end

-- price for which goods are sold from this to others
function TradingManager:getSellPrice(goodName, buyingFaction)

local good = self:getSoldGoodByName(goodName)
    if not good then return 0 end

-- empty stock -> higher price
    local maxStock = self:getMaxStock(good.size)
    local factor = 1

local relationFactor = 1
    if buyingFaction then
        local sellerIndex = nil
        if type(buyingFaction) == "number" then
            sellerIndex = buyingFaction
        else
            sellerIndex = buyingFaction.index
        end

if sellerIndex then
            local relations = Faction():getRelations(sellerIndex)

if relations < -10000 then
                -- bad relations: faction wants more for the goods
                -- 200% to 100% from -100.000 to -10.000
                relationFactor = lerp(relations, -100000, -10000, 2.0, 1.0)
            elseif relations > 30000 then
                -- good relations: factions start giving player better prices
                -- 100% to 80% from 30.000 to 90.000
                relationFactor = lerp(relations, 30000, 90000, 1.0, 0.8)
            end

if Faction().index == sellerIndex then relationFactor = 0 end
        end

end

local price = round(good.price * relationFactor * factor * self.sellPriceFactor)
    local basePrice = round(good.price * self.sellPriceFactor)

return price, basePrice
end

local r = Random(Seed(os.time()))

local organizeUpdateFrequency
local organizeUpdateTime

local organizeDescription = [[
Organize ${amount} ${good.displayPlural} in 30 Minutes.

You will be paid the double of the usual price, plus a bonus.

Time Limit: 30 minutes
Reward: $${reward}
]]%_t

function TradingManager:updateOrganizeGoodsBulletins(timeStep)

if not organizeUpdateFrequency then
        -- more frequent updates when there are more ingredients
        organizeUpdateFrequency = math.max(60 * 8, 60 * 60 - (#self.boughtGoods * 7.5 * 60))
    end

if not organizeUpdateTime then
        -- by adding half the time here, we have a chance that a factory immediately has a bulletin
        organizeUpdateTime = 0

local minutesSimulated = r:getInt(10, 80)
        for i = 1, minutesSimulated do -- simulate bulletin posting / removing
            self:updateOrganizeGoodsBulletins(60)
        end
    end

organizeUpdateTime = organizeUpdateTime + timeStep

-- don't execute the following code if the time hasn't exceeded the posting frequency
    if organizeUpdateTime < organizeUpdateFrequency then return end
    organizeUpdateTime = organizeUpdateTime - organizeUpdateFrequency

-- choose a random ingredient
    local good = self.boughtGoods[r:getInt(1, #self.boughtGoods)]
    if not good then return end

local cargoVolume = 50 + r:getFloat(0, 200)
    local amount = math.min(math.floor(100 / good.size), 150)
    local reward = good.price * amount * 2.0 + 20000
    local x, y = Sector():getCoordinates()

local bulletin =
    {
        brief = "Resource Shortage: ${amount} ${good.displayPlural}"%_T,
        description = organizeDescription,
        difficulty = "Easy"%_T,
        reward = string.format("$${reward}"%_T, createMonetaryString(reward)),
        script = "missions/organizegoods.lua",
        arguments = {good.name, amount, Entity().index, x, y, reward},
        formatArguments = {amount = amount, good = good, reward = createMonetaryString(reward)}
    }

-- since in this case "add" can override "remove", adding a bulletin is slightly more probable
    local add = r:getFloat() < 0.5
    local remove = r:getFloat() < 0.5

if not add and not remove then
        if r:getFloat() < 0.5 then
            add = true
        else
            remove = true
        end
    end

if add then
        -- randomly add bulletins
        Entity():invokeFunction("bulletinboard", "postBulletin", bulletin)
    elseif remove then
        -- randomly remove bulletins
        Entity():invokeFunction("bulletinboard", "removeBulletin", bulletin.brief)
    end

end

local deliveryDescription = [[
Deliver ${amount} ${good.displayPlural} to a station near this location in 20 minutes.

You will have to make a deposit of $${deposit},
which will be reimbursed when the goods are delivered.

Deposit: $${deposit}
Time Limit: 20 minutes
Reward: $${reward}
]]%_t

local deliveryUpdateFrequency
local deliveryUpdateTime

function TradingManager:updateDeliveryBulletins(timeStep)

if not deliveryUpdateFrequency then
        -- more frequent updates when there are more ingredients
        deliveryUpdateFrequency = math.max(60 * 8, 60 * 60 - (#self.soldGoods * 7.5 * 60))
    end

if not deliveryUpdateTime then
        -- by adding half the time here, we have a chance that a factory immediately has a bulletin
        deliveryUpdateTime = 0

local minutesSimulated = r:getInt(10, 80)
        for i = 1, minutesSimulated do -- simulate 1 hour of bulletin posting / removing
            self:updateDeliveryBulletins(60)
        end
    end

deliveryUpdateTime = deliveryUpdateTime + timeStep

-- don't execute the following code if the time hasn't exceeded the posting frequency
    if deliveryUpdateTime < deliveryUpdateFrequency then return end
    deliveryUpdateTime = deliveryUpdateTime - deliveryUpdateFrequency

-- choose a sold good
    local good = self.soldGoods[r:getInt(1, #self.soldGoods)]
    if not good then return end

local cargoVolume = 50 + r:getFloat(0, 200)
    local amount = math.min(math.floor(cargoVolume / good.size), 150)
    local reward = good.price * amount
    local x, y = Sector():getCoordinates()

-- add a maximum of earnable money
    local maxEarnable = 20000 * Balancing_GetSectorRichnessFactor(x, y)
    if reward > maxEarnable then
        amount = math.floor(maxEarnable / good.price)
        reward = good.price * amount
    end

if amount == 0 then return end

reward = reward * 0.5 + 5000
    local deposit = math.floor(good.price * amount * 0.75 / 100) * 100
    local reward = math.floor(reward / 100) * 100

-- todo: localization of entity titles
    local bulletin =
    {
        brief = "Delivery: ${good.displayPlural}"%_T,
        description = deliveryDescription,
        difficulty = "Easy"%_T,
        reward = string.format("$%s", createMonetaryString(reward)),
        formatArguments = {good = good, amount = amount, deposit = createMonetaryString(deposit), reward = createMonetaryString(reward)},

script = "missions/delivery.lua",
        arguments = {good.name, amount, Entity().index, deposit + reward},

checkAccept = [[
            local self, player = ...
            local ship = Entity(player.craftIndex)
            local space = ship.freeCargoSpace or 0
            if space < self.good.size * self.amount then
                player:sendChatMessage(self.sender, 1, self.msgCargo)
                return 0
            end
            if not Entity():isDocked(ship) then
                player:sendChatMessage(self.sender, 1, self.msgDock)
                return 0
            end
            local canPay = player:canPay(self.deposit)
            if not canPay then
                player:sendChatMessage(self.sender, 1, self.msgMoney)
                return 0
            end
            return 1
            ]],
        onAccept = [[
            local self, player = ...
            player:pay(self.deposit)
            local ship = Entity(player.craftIndex)
            ship:addCargo(goods[self.good.name]:good(), self.amount)
            ]],

cargoVolume = cargoVolume,
        amount = amount,
        good = good,
        deposit = deposit,
        sender = "Client"%_T,
        msgCargo = "Not enough cargo space on your ship."%_T,
        msgDock = "You have to be docked to the station."%_T,
        msgMoney = "You don't have enough money for the deposit."%_T
    }

-- since in this case "add" can override "remove", adding a bulletin is slightly more probable
    local add = r:getFloat() < 0.5
    local remove = r:getFloat() < 0.5

if not add and not remove then
        if r:getFloat() < 0.5 then
            add = true
        else
            remove = true
        end
    end

end

function TradingManager:getBuyGoodsErrorMessage(code)
    if code == 0 then
        return "No error."%_T
    elseif code == 1 then
        return "Good isn't bought."%_T
    elseif code == 2 then
        return "No more space."%_T
    elseif code == 3 then
        return "Not enough money."%_T
    elseif code == 4 then
        return "Good isn't bought."%_T
    end

return "Unknown error."%_T
end

function TradingManager:getSellGoodsErrorMessage(code)
    if code == 0 then
        return "No error."%_T
    elseif code == 1 then
        return "No more goods."%_T
    elseif code == 2 then
        return "Not enough money."%_T
    end

return "Unknown error."%_T
end

local PublicNamespace = {}
PublicNamespace.CreateTradingManager = setmetatable({new = new}, {__call = function(_, ...) return new(...) end})

function PublicNamespace.CreateTabbedWindow(caption)
    local menu = ScriptUI()

if not PublicNamespace.tabbedWindow then
        local res = getResolution()
        local size = vec2(950, 650)

local window = menu:createWindow(Rect(res * 0.5 - size * 0.5, res * 0.5 + size * 0.5));

window.caption = caption or ""
        window.showCloseButton = 1
        window.moveable = 1

-- create a tabbed window inside the main window
        PublicNamespace.tabbedWindow = window:createTabbedWindow(Rect(vec2(10, 10), size - 10))
        PublicNamespace.window = window
    end

-- registers the window for this script, enabling the default window interaction calls like onShowWindow(), renderUI(), etc.
    -- if the same window is registered more than once, an interaction option will only be shown for the first registration
    menu:registerWindow(PublicNamespace.window, "Trade Goods"%_t);

return PublicNamespace.tabbedWindow
end

function PublicNamespace.CreateNamespace()
    local result = {}

local trader = PublicNamespace.CreateTradingManager()
    result.trader = trader
    result.updateDeliveryBulletins = function(...) return trader:updateDeliveryBulletins(...) end
    result.updateOrganizeGoodsBulletins = function(...) return trader:updateOrganizeGoodsBulletins(...) end
    result.getSellPrice = function(...) return trader:getSellPrice(...) end
    result.getBuyPrice = function(...) return trader:getBuyPrice(...) end
    result.getGoodByName = function(...) return trader:getGoodByName(...) end
    result.getSoldGoodByName = function(...) return trader:getSoldGoodByName(...) end
    result.getBoughtGoodByName = function(...) return trader:getBoughtGoodByName(...) end
    result.getMaxStock = function(...) return trader:getMaxStock(...) end
    result.getGoodSize = function(...) return trader:getGoodSize(...) end
    result.getMaxGoods = function(...) return trader:getMaxGoods(...) end
    result.getNumGoods = function(...) return trader:getNumGoods(...) end
    result.getStock = function(...) return trader:getStock(...) end
    result.getSoldGoods = function(...) return trader:getSoldGoods(...) end
    result.getBoughtGoods = function(...) return trader:getBoughtGoods(...) end
    result.useUpBoughtGoods = function(...) return trader:useUpBoughtGoods(...) end
    result.decreaseGoods = function(...) return trader:decreaseGoods(...) end
    result.increaseGoods = function(...) return trader:increaseGoods(...) end
    result.sellToShip = function(...) return trader:sellToShip(...) end
    result.buyFromShip = function(...) return trader:buyFromShip(...) end
    result.onSellButtonPressed = function(...) return trader:onSellButtonPressed(...) end
    result.onBuyButtonPressed = function(...) return trader:onBuyButtonPressed(...) end
    result.onSellTextEntered = function(...) return trader:onSellTextEntered(...) end
    result.onBuyTextEntered = function(...) return trader:onBuyTextEntered(...) end
    result.buildGui = function(...) return trader:buildGui(...) end
    result.buildSellGui = function(...) return trader:buildSellGui(...) end
    result.buildBuyGui = function(...) return trader:buildBuyGui(...) end
    result.updateSoldGoodAmount = function(...) return trader:updateSoldGoodAmount(...) end
    result.updateBoughtGoodAmount = function(...) return trader:updateBoughtGoodAmount(...) end
    result.receiveGoods = function(...) return trader:receiveGoods(...) end
    result.sendGoods = function(...) return trader:sendGoods(...) end
    result.requestGoods = function(...) return trader:requestGoods(...) end
    result.initializeTrading = function(...) return trader:initializeTrading(...) end
    result.secureTradingGoods = function(...) return trader:secureTradingGoods(...) end
    result.restoreTradingGoods = function(...) return trader:restoreTradingGoods(...) end
    result.generateGoods = function(...) return trader:generateGoods(...) end
    result.sendError = function(...) return trader:sendError(...) end
    result.buyGoods = function(...) return trader:buyGoods(...) end
    result.sellGoods = function(...) return trader:sellGoods(...) end
    result.getBuysFromOthers = function(...) return trader:getBuysFromOthers(...) end
    result.getSellsToOthers = function(...) return trader:getSellsToOthers(...) end
    result.setBuysFromOthers = function(...) return trader:setBuysFromOthers(...) end
    result.setSellsToOthers = function(...) return trader:setSellsToOthers(...) end

result.setUseUpGoodsEnabled = function(enabled) trader.useUpGoodsEnabled = enabled end
    result.getBuyGoodsErrorMessage = function(enabled) trader.getBuyGoodsErrorMessage = enabled end
    result.getSellGoodsErrorMessage = function(enabled) trader.getSellGoodsErrorMessage = enabled end

return result
end

return PublicNamespace

परिवर्तित टेक्स्ट

फ़ाइल खोलें

package.path = package.path .. ";data/scripts/lib/?.lua"
require ("galaxy")
require ("utility")
require ("goods")
require ("stringutility")
require ("player")
require ("faction")

local PublicNamespace = {}

local TradingManager = {}
TradingManager.__index = TradingManager

local function new()
    local instance = {}

instance.buyPriceFactor = 1
    instance.sellPriceFactor = 1

instance.boughtGoods = {}
    instance.soldGoods = {}

instance.numSold = 0
    instance.numBought = 0

instance.policies =
    {
        sellsIllegal = false,
        buysIllegal = false,

sellsStolen = false,
        buysStolen = false,

sellsSuspicious = false,
        buysSuspicious = false,
    }

-- UI
    instance.boughtLines = {}
    instance.soldLines = {}

instance.guiInitialized = false
    instance.useTimeCounter = 0 -- time counter for using up bought products
    instance.useUpGoodsEnabled = true

return setmetatable(instance, TradingManager)
end

if good.stolen and not self.policies.sellsStolen then
        local msg = "This station doesn't sell stolen goods."%_t
        return false, msg
    end

if good.suspicious and not self.policies.sellsSuspicious then
        local msg = "This station doesn't sell suspicious goods."%_t
        return false, msg
    end

return true
end

if good.stolen and not self.policies.buysStolen then
        local msg = "This station doesn't buy stolen goods."%_t
        return false, msg
    end

if good.suspicious and not self.policies.buysSuspicious then
        local msg = "This station doesn't buy suspicious goods."%_t
        return false, msg
    end

return true
end

function TradingManager:generateGoods(min, max)
    min = min or 10
    max = max or 15

local numGoods = math.random(min, max)

local bought = {}
    local sold = {}
    local existingGoods = {}

local maxNumGoods = tablelength(goodsArray)

for i = 1, numGoods do
        local index = math.random(1, maxNumGoods)
        local g = goodsArray[index]
        local good = g:good()

-- don't trade potentially illegal goods
        if self:isBoughtBySelf(good) then

if existingGoods[good.name] == nil then

good.size = round(good.size, 2)
                good.price = round(good.price)
                table.insert(bought, good)
                existingGoods[good.name] = 1
            end

end
    end

for i = 1, numGoods do
        local index = math.random(1, maxNumGoods)
        local g = goodsArray[index]
        local good = g:good()

-- don't trade potentially illegal goods
        if self:isSoldBySelf(good.name) then

if existingGoods[good.name] == nil then
                good.size = round(good.size, 2)
                good.price = round(good.price)

table.insert(sold, good)
                existingGoods[good.name] = 1
            end
        end
    end

return bought, sold
end

function TradingManager:restoreTradingGoods(data)
    self.buyPriceFactor = data.buyPriceFactor
    self.sellPriceFactor = data.sellPriceFactor
    self.policies = data.policies

self.boughtGoods = {}
    for _, g in pairs(data.boughtGoods) do
        table.insert(self.boughtGoods, tableToGood(g))
    end

self.soldGoods = {}
    for _, g in pairs(data.soldGoods) do
        table.insert(self.soldGoods, tableToGood(g))
    end

self.numBought = #self.boughtGoods
    self.numSold = #self.soldGoods
end

function TradingManager:secureTradingGoods()
    local data = {}
    data.buyPriceFactor = self.buyPriceFactor
    data.sellPriceFactor = self.sellPriceFactor
    data.policies = self.policies

data.boughtGoods = {}
    for _, g in pairs(self.boughtGoods) do
        table.insert(data.boughtGoods, goodToTable(g))
    end

data.soldGoods = {}
    for _, g in pairs(self.soldGoods) do
        table.insert(data.soldGoods, goodToTable(g))
    end

return data
end

function TradingManager:initializeTrading(boughtGoodsIn, soldGoodsIn, policiesIn)

local entity = Entity()

self.policies = policiesIn or self.policies

boughtGoodsIn = boughtGoodsIn or {}
    soldGoodsIn = soldGoodsIn or {}

self.numBought = #boughtGoodsIn
    self.numSold = #soldGoodsIn

self.boughtGoods = {}

for i, v in ipairs(boughtGoodsIn) do
        if not generated then
            local maxStock = self:getMaxStock(v.size)
            if maxStock > 0 then

-- limit to 500k value at max
                    local maxValue = 200 * 10000 * Balancing_GetSectorRichnessFactor(Sector():getCoordinates())
                    amount = math.min(maxStock, math.floor(maxValue / v.price))

-- but have at least 7 - 10
                    amount = math.max(amount, math.random(7, 10))

-- ... if max stock allows it
                    amount = math.min(amount, maxStock)
                end

entity:addCargo(v, amount)
            end
        end

table.insert(self.boughtGoods, v)
    end

self.soldGoods = {}

for i, v in ipairs(soldGoodsIn) do
        if not generated then
            local maxStock = self:getMaxStock(v.size)
            if maxStock > 0 then

-- limit to 500k value at max
                    local maxValue = 5000000
                    amount = math.min(maxStock, math.floor(maxValue / v.price))

-- but have at least a few
                    amount = math.max(amount, math.random(2, 5))

-- ... if max stock allows it
                    amount = math.min(amount, maxStock)
                end

entity:addCargo(v, amount)
            end
        end

table.insert(self.soldGoods, v)
    end

self.numBought = #self.boughtGoods
    self.numSold = #self.soldGoods

end

function TradingManager:requestGoods()
    self.boughtGoods = {}
    self.soldGoods = {}

self.numBought = 0
    self.numSold = 0

invokeServerFunction("sendGoods", Player().index)
end

function TradingManager:sendGoods(playerIndex)

local player = Player(playerIndex)

invokeClientFunction(player, "receiveGoods", self.buyPriceFactor, self.sellPriceFactor, self.boughtGoods, self.soldGoods, self.policies)
end

function TradingManager:receiveGoods(buyFactor, sellFactor, boughtGoods_in, soldGoods_in, policies_in)

self.buyPriceFactor = buyFactor
    self.sellPriceFactor = sellFactor

self.policies = policies_in

self.boughtGoods = boughtGoods_in
    self.soldGoods = soldGoods_in

self.numBought = #self.boughtGoods
    self.numSold = #self.soldGoods

for i, good in ipairs(self.boughtGoods) do
        self:updateBoughtGoodGui(i, good, self:getBuyPrice(good.name, Player().index))
    end

for i, good in ipairs(self.soldGoods) do
        self:updateSoldGoodGui(i, good, self:getSellPrice(good.name, Player().index))
    end

end

function TradingManager:updateBoughtGoodGui(index, good, price)

if not self.guiInitialized then return end

local maxAmount = self:getMaxStock(good.size)
    local amount = self:getNumGoods(good.name)

local line = self.boughtLines[index]

line:show()
end

function TradingManager:updateSoldGoodGui(index, good, price)

if not self.guiInitialized then return end

local maxAmount = self:getMaxStock(good.size)
    local amount = self:getNumGoods(good.name)

local line = self.soldLines[index]

for i, good in pairs(self.soldGoods) do
        local line = self.soldLines[i]

local ownCargo = 0
        local ship = Entity(Player().craftIndex)
        if ship then
            ownCargo = math.floor((ship.freeCargoSpace or 0) / good.size)
        end

if ownCargo == 0 then ownCargo = "-" end
        line.you.caption = tostring(ownCargo)
    end

line:show()

end

function TradingManager:updateBoughtGoodAmount(index)

local good = self.boughtGoods[index];

if good ~= nil then -- it's possible that the production may start before the initialization of the client version of the factory
        self:updateBoughtGoodGui(index, good, self:getBuyPrice(good.name, Player().index))
    end

end

function TradingManager:updateSoldGoodAmount(index)

local good = self.soldGoods[index];

if good ~= nil then -- it's possible that the production may start before the initialization of the client version of the factory
        self:updateSoldGoodGui(index, good, self:getSellPrice(good.name, Player().index))
    end
end