Files
Towbar/42.13/media/lua/client/TowBar/TowSyncClient.lua
2026-02-13 13:00:40 -05:00

126 lines
4.0 KiB
Lua

if isServer() then return end
if not TowBarMod then TowBarMod = {} end
TowBarMod.Sync = TowBarMod.Sync or {}
if TowBarMod.Sync._towSyncClientLoaded then return end
TowBarMod.Sync._towSyncClientLoaded = true
local function resolveVehicle(id)
if not id then return nil end
return getVehicleById(id)
end
local function ensureAttachment(vehicle, attachmentId)
if not vehicle or not attachmentId then return false end
local script = vehicle:getScript()
if not script then return false end
if script:getAttachmentById(attachmentId) ~= nil then return true end
local wheelCount = script:getWheelCount()
local yOffset = -0.5
if wheelCount > 0 then
local wheel = script:getWheel(0)
if wheel and wheel:getOffset() then
yOffset = wheel:getOffset():y() + 0.1
end
end
local chassis = script:getPhysicsChassisShape()
if not chassis then return false end
local attach = ModelAttachment.new(attachmentId)
if attachmentId == "trailer" then
attach:getOffset():set(0, yOffset, -chassis:z() / 2 - 0.1)
attach:setZOffset(-1)
else
attach:getOffset():set(0, yOffset, chassis:z() / 2 + 0.1)
attach:setZOffset(1)
end
script:addAttachment(attach)
return true
end
local function isLinked(vehicleA, vehicleB)
if not vehicleA or not vehicleB then return false end
return vehicleA:getVehicleTowing() == vehicleB and vehicleB:getVehicleTowedBy() == vehicleA
end
local function reconcilePairState(vehicleA, vehicleB, attachmentA, attachmentB)
if TowBarMod.Utils and TowBarMod.Utils.updateAttachmentsForRigidTow then
TowBarMod.Utils.updateAttachmentsForRigidTow(vehicleA, vehicleB, attachmentA, attachmentB)
end
local towingMd = vehicleA:getModData()
local towedMd = vehicleB:getModData()
local currentScript = vehicleB:getScriptName()
if towingMd then
towingMd["isTowingByTowBar"] = true
vehicleA:transmitModData()
end
if towedMd then
if towedMd.towBarOriginalScriptName == nil and currentScript ~= "notTowingA_Trailer" then
towedMd.towBarOriginalScriptName = currentScript
end
if towedMd.towBarOriginalMass == nil then
towedMd.towBarOriginalMass = vehicleB:getMass()
end
if towedMd.towBarOriginalBrakingForce == nil then
towedMd.towBarOriginalBrakingForce = vehicleB:getBrakingForce()
end
towedMd["isTowingByTowBar"] = true
towedMd["towed"] = true
vehicleB:transmitModData()
end
vehicleB:setScriptName("notTowingA_Trailer")
if TowBarMod.Hook and TowBarMod.Hook.setVehiclePostAttach then
pcall(TowBarMod.Hook.setVehiclePostAttach, nil, vehicleB)
end
end
local function applyAttachSync(args)
if not args then return end
local vehicleA = resolveVehicle(args.vehicleA)
local vehicleB = resolveVehicle(args.vehicleB)
if not vehicleA or not vehicleB then return end
local attachmentA = args.attachmentA or "trailer"
local attachmentB = args.attachmentB or "trailerfront"
if not ensureAttachment(vehicleA, attachmentA) or not ensureAttachment(vehicleB, attachmentB) then
return
end
if not isLinked(vehicleA, vehicleB) then
vehicleA:addPointConstraint(nil, vehicleB, attachmentA, attachmentB)
end
reconcilePairState(vehicleA, vehicleB, attachmentA, attachmentB)
end
local function safeBreak(vehicle)
if not vehicle then return end
if vehicle:getVehicleTowing() == nil and vehicle:getVehicleTowedBy() == nil then return end
vehicle:breakConstraint(true, true)
end
local function applyDetachSync(args)
if not args then return end
safeBreak(resolveVehicle(args.vehicleA))
safeBreak(resolveVehicle(args.vehicleB))
end
local function onServerCommand(module, command, args)
if module ~= "towbar" then return end
if command == "forceAttachSync" then
applyAttachSync(args)
elseif command == "forceDetachSync" then
applyDetachSync(args)
end
end
Events.OnServerCommand.Add(onServerCommand)