cocos2dx-lua 3.x 热更新方法

概述cocos2dx-lua中有assetmanagerex的c++实现类，也有绑定到lua。不过在3.10之前有缺陷，问题是当有文件下载失败时会陷入死循环，导致业务链断裂。不过网上有解决办法，可简单修改源码解决。不过个人还是建议可以把高于3.10版本以后的assetmanagerex代码移植到旧的3.x版本，也可以选择新项目使用3.10以后版本。 以下是lua版本使用热更新的方法 local Aut

cocos2dx-lua中有assetmanagerex的c++实现类，也有绑定到lua。不过在3.10之前有缺陷，问题是当有文件下载失败时会陷入死循环，导致业务链断裂。不过网上有解决办法，可简单修改源码解决。不过个人还是建议可以把高于3.10版本以后的assetmanagerex代码移植到旧的3.x版本，也可以选择新项目使用3.10以后版本。

以下是lua版本使用热更新的方法

local autoUpdateScene = class("autoUpdateScene",cc.load("mvc").VIEwBase)local manifestPath = "project.manifest"local storagePath = "update"function autoUpdateScene:onCreate()    self._update_Failed_count = 0    local layer  = cc.Layer:create()    local am = nil    local function onEnter()        local ttfConfig = {}        ttfConfig.FontfilePath = "Fonts/arial.ttf"        ttfConfig.FontSize = 80        local  progress = cc.Label:createWithTTF(ttfConfig,"0%",cc.VERTICAL_TEXT_AlignmENT_CENTER)        progress:setposition(cc.p(display.center.x,display.center.y + 50))        layer:addChild(progress)        am = cc.AssetsManagerEx:create(manifestPath,cc.fileUtils:getInstance():getWritablePath() .. storagePath)        am:retain()        if not am:getLocalManifest():isLoaded() then            print("Fail to update assets,step skipped.")            self:onFail("本地资源错误，请重新下载游戏。")        else            local function onUpdateEvent(event)                local eventCode = event:getEventCode()                print("====== assetsmanagerex error code:",eventCode)                --[[ cc.EventAssetsManagerEx.EventCode = {                    ERROR_NO_LOCAL_MANIFEST = 0,ERROR_DOWNLOAD_MANIFEST = 1,ERROR_PARSE_MANIFEST = 2,NEW_VERSION_FOUND = 3,ALREADY_UP_TO_DATE = 4,UPDATE_PROGRESSION = 5,ASSET_UPDATED = 6,ERROR_UPDATING = 7,UPDATE_FINISHED = 8,UPDATE_Failed = 9,ERROR_DECOMPRESS = 10                } ]]                if eventCode == cc.EventAssetsManagerEx.EventCode.ERROR_NO_LOCAL_MANIFEST then                    print("No local manifest file found,skip assets update.")                    self:onFail(string.format("本地资源错误，请重新下载游戏。(错误码:%d)",eventCode))                elseif eventCode == cc.EventAssetsManagerEx.EventCode.UPDATE_PROGRESSION then                    local assetID = event:getAssetID()                    local percent = event:getPercent()                    local strInfo = ""                    if assetID == cc.AssetsManagerExStatic.VERSION_ID then                        strInfo = string.format("Version file: %d%%",percent)                    elseif assetID == cc.AssetsManagerExStatic.MANIFEST_ID then                        strInfo = string.format("Manifest file: %d%%",percent)                    else                        strInfo = string.format("%d%%",percent)                    end                    progress:setString(strInfo)                    self:setLoadingProgress(event:getPercentByfile())                elseif eventCode == cc.EventAssetsManagerEx.EventCode.ERROR_DOWNLOAD_MANIFEST or                        eventCode == cc.EventAssetsManagerEx.EventCode.ERROR_PARSE_MANIFEST then                    print("Fail to download manifest file,update skipped.")                    self:onFail(string.format("更新失败，请检查网络配置。(错误码:%d)",eventCode))                elseif eventCode == cc.EventAssetsManagerEx.EventCode.ALREADY_UP_TO_DATE or                        eventCode == cc.EventAssetsManagerEx.EventCode.UPDATE_FINISHED then                    print("Update finished.")                    self:onSuccess()                elseif eventCode == cc.EventAssetsManagerEx.EventCode.ERROR_UPDATING then                    print("Asset ",event:getAssetID(),",event:getMessage())                    -- self:onFail(string.format("更新资源失败，请检查网络后重试。(%d)",eventCode))                elseif eventCode == cc.EventAssetsManagerEx.EventCode.UPDATE_Failed then                    print("Fail to download resource files.")                    self._update_Failed_count = self._update_Failed_count + 1                    if self._update_Failed_count <= 3 then                        print("try again")                        am:downloadFailedAssets()                    else                        self:onFail(string.format("更新失败，请检查网络配置。(错误码:%d)",eventCode))                    end                elseif eventCode == cc.EventAssetsManagerEx.EventCode.NEW_VERSION_FOUND then                    print("new version found.")                    --am:update()                elseif eventCode == cc.EventAssetsManagerEx.EventCode.ASSET_UPDATED then                    print("assets updated.")                elseif eventCode == cc.EventAssetsManagerEx.EventCode.ERROR_DECOMPRESS then                    print("decompress error.")                end            end            local Listener = cc.EventListenerAssetsManagerEx:create(am,onUpdateEvent)            cc.Director:getInstance():getEventdispatcher():addEventListenerWithFixedPriority(Listener,1)                        am:update()            --am:checkUpdate()        end    end    local function onExit()        am:release()    end    local function onNodeEvent(event)        if "enter" == event then            onEnter()        elseif "exit" == event then            onExit()        end    end    layer:registerScriptHandler(onNodeEvent)    self:addChild(layer)endfunction autoUpdateScene:onFail(msg)    print("====== update fail ======",msg)        -- 热更新失败处理endfunction autoUpdateScene:onSuccess()    print("====== update success ======")    local writablePath = cc.fileUtils:getInstance():getWritablePath()    package.path = writablePath .. "update/src/?.lua;./?.lua;"    -- 启动热更新后的场景endreturn autoUpdateScene

总结

以上是内存溢出为你收集整理的cocos2dx-lua 3.x 热更新方法全部内容，希望文章能够帮你解决cocos2dx-lua 3.x 热更新方法所遇到的程序开发问题。

如果觉得内存溢出网站内容还不错，欢迎将内存溢出网站推荐给程序员好友。