118 lines
3.6 KiB
Lua
118 lines
3.6 KiB
Lua
BTtow = {}
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BTtow.Create = {}
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BTtow.Init = {}
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local TowbarVariantSize = 24
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local TowbarNormalStart = 0
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local TowbarLargeStart = 24
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local TowbarMaxIndex = TowbarVariantSize - 1
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local VanillaScaleMin = 1.5
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local VanillaScaleMax = 2.0
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local function getVehicleModelScale(script)
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if not script then return nil end
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local ok, result = pcall(function()
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return script:getModelScale()
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end)
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if ok and type(result) == "number" then
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return result
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end
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ok, result = pcall(function()
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local model = script:getModel()
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if model then
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return model:getScale()
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end
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return nil
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end)
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if ok and type(result) == "number" then
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return result
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end
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return nil
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end
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local function isVanillaScale(script)
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local modelScale = getVehicleModelScale(script)
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if modelScale == nil then
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return true
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end
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local configuredMin = TowBarMod and TowBarMod.Config and tonumber(TowBarMod.Config.vanillaTowbarModelScaleMin)
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local configuredMax = TowBarMod and TowBarMod.Config and tonumber(TowBarMod.Config.vanillaTowbarModelScaleMax)
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local minScale = configuredMin or VanillaScaleMin
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local maxScale = configuredMax or VanillaScaleMax
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return modelScale >= minScale and modelScale <= maxScale
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end
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local function getTowbarIndexVanilla(script)
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local z = script:getPhysicsChassisShape():z() / 2 - 0.1
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local index = math.floor((z * 2 / 3 - 1) * 10)
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return math.max(0, math.min(TowbarMaxIndex, index))
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end
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local function getTowbarIndexSmallScale(script)
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if not script then return nil end
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local maxAbsTowZ = nil
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local trailer = script:getAttachmentById("trailer")
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if trailer then
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maxAbsTowZ = math.abs(trailer:getOffset():z())
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end
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local trailerFront = script:getAttachmentById("trailerfront")
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if trailerFront then
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local frontAbsZ = math.abs(trailerFront:getOffset():z())
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if not maxAbsTowZ or frontAbsZ > maxAbsTowZ then
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maxAbsTowZ = frontAbsZ
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end
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end
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if maxAbsTowZ ~= nil then
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local index = math.floor((maxAbsTowZ + 0.1 - 1.0) * 10)
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return math.max(0, math.min(TowbarMaxIndex, index))
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end
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return nil
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end
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local function getTowbarModelSlot(script)
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local isVanilla = isVanillaScale(script)
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local index = getTowbarIndexVanilla(script)
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if not isVanilla then
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local attachmentIndex = getTowbarIndexSmallScale(script)
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if attachmentIndex ~= nil then
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index = attachmentIndex
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else
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local offset = TowBarMod and TowBarMod.Config and tonumber(TowBarMod.Config.smallScaleTowbarIndexOffset) or 2
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index = math.max(0, math.min(TowbarMaxIndex, index + offset))
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end
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end
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return index, isVanilla
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end
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function BTtow.Create.towbar(vehicle, part)
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if part == nil then return end
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for j=0, TowbarVariantSize - 1 do
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part:setModelVisible("towbar" .. j, false)
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end
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end
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function BTtow.Init.towbar(vehicle, part)
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if part == nil then return end
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for j=0, TowbarVariantSize - 1 do
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part:setModelVisible("towbar" .. j, false)
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end
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if vehicle:getModData()["isTowingByTowBar"] and vehicle:getModData()["towed"] then
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local script = vehicle:getScript()
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if script then
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local index, isVanilla = getTowbarModelSlot(script)
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local partId = part:getId()
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local shouldShowOnThisPart = (isVanilla and partId == "towbar") or ((not isVanilla) and partId == "towbarLarge")
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if shouldShowOnThisPart then
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part:setModelVisible("towbar" .. index, true)
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end
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end
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end
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end
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