LoadingController

--local MainSceneConfig = require "res.scripts.configs.MainSceneConfig" -- 暂时添加一个临时配置文件

--require "res.scripts.scenes.MainScene"

-- 加载事件

OnLoadingStart         = "OnLoadingStart";

OnLoadingProcess     = "OnLoadingProcess";

OnLoadingEnd         = "OnLoadingEnd";

-- 加载类型

SOUNDTYPE = "sounds";

TEXTURETYPE = "textures";

ATLASTYPE = "atlas";

ANIMATIONTYPE = "animations";

EFFECTTYPE   = "effects";

-- 加载控制逻辑

local LoadingController = class("LoadingController", Behavior);

function LoadingController:ctor(sceneName)

    LoadingController.super.ctor(self);

    -- 定义成员变量

    self.progress = ; -- 加载进度

    self.totalLoadingNum = ; --加载总数数量

    self.curLoadingNum = ;  -- 当前加载数量

    self.loadingConfig = ""; -- 资源配置文件

    self.log = nil;        -- 加载界面log

    self.btmLabel = nil; --进度显示标签

    self.uiLayout = nil; -- 加载界面布局

    self.uiLayer = nil; -- 加载界面层

    self.curScene = nil; -- 上一个场景

    self.nextScene = nil; -- 下一个场景

    self.config = res[sceneName];-- 配置文件

    self.curSceneName = sceneName;

    self.isLoaded = false;

    -- 随机抽取一只怪物

    local animKeys = table.keys(res.animations);

    if #animKeys >  then

        local index = math.random(, #animKeys);

        self.animName = tostring(animKeys[index]);

        self.loadingxml = res.animations[self.animName];

        self.loadingplist = string.gsub(self.loadingxml, ".xml", ".plist")

        self.loadingpng = string.gsub (self.loadingxml, ".xml", ".png")

    end

end

function LoadingController:run(  )

    self.curScene = SceneM.getRunningScene();

    self.nextScene = nil;

    -- 1.ui层

    self.uiLayer = ObjectFactory.newLayer();

    self.uiLayer:setColor(ccc3(, , ));

    -- 2.创建构成加载场景的元素

    self.btmLabel = ObjectFactory.newBMFontLabel({text = "Loading 0%", font = res.fonts.UIFont,})

    self.btmLabel:setPosition(ccp(Screen.cx, Screen.cy - ));

    self.uiLayer:addChild(self.btmLabel);

    if self.loadingxml then

        CCArmatureDataManager:sharedArmatureDataManager():addArmatureFileInfoAsync(self.loadingpng, self.loadingplist, self.loadingxml, function (  )

            if self.isLoaded then

                return;

            end

            local lion = ObjectFactory.newArmature(self.animName);

            lion:setPosition(ccp(Screen.cx,Screen.cy));

            lion:addParent(self.uiLayer);

            lion:getComponent("Animation"):play("run", WrapMode.Loop);

        end)

    end

    -- 3. 添加到场景

    SceneM.dontDestroy(self.uiLayer);

    -- 4. 关掉触摸消息

    CCDirector:sharedDirector():getTouchDispatcher():setDispatchEvents(false);

    -- 5. 关掉动作管理

    CCDirector:sharedDirector():getActionManager():removeAllActions();

    -- 6. 退出当前场景

    if self.curScene then

        self.curScene:setVisible(false);

    end

    -- 7. 重新初始化管理类

    SceneM.uiLayers = {};

    -- 8.延迟清除当前资源，并且加载下一个场景资源

    performWithDelay(function (  )

        self:cleanup();

        self:startLoading(self.config);

    end, 0.01)

    -- 9. 回收lua内存

    collectgarbage("collect")

end

function LoadingController:startLoading(theloadingconfig)

    if theloadingconfig == nil then

        self.isLoaded = true;

            -- 切换场景

            self.nextScene = ObjectFactory.newScene(self.curSceneName);

            SceneM.curScene = self.nextScene;

            self.nextScene:addComponent(self.curSceneName,SceneM.getSceneController(self.curSceneName));

            -- 关闭加载层

            SceneM.destroy(self.uiLayer);

            -- 开启触摸消息

            CCDirector:sharedDirector():getTouchDispatcher():setDispatchEvents(true);

            -- 记录配置文件路径

            SceneM.lastSceneName = self.curSceneName;

            -- 切换到新场景

            SceneM.replaceScene(self.nextScene, "crossfade", 0.2, Screen.COLOR_WHITE);

        return;

    end

    print ("start loading")

    self.loadingConfig = theloadingconfig;

    local resTypes = {"sounds","textures","atlas","animations","effects"}

    local curIndex = ;

    -- 1.开始当前场景加载资源

    self.curLoadingNum =

    local totalNum  =

    local function loopRes( t , resType)

        if self.curLoadingNum > self.totalLoadingNum then

            return;

        end

        if t == nil then

            curIndex = curIndex + ;

            local resType = resTypes[curIndex];

            print("加载类型：",resType);

            print("加载：",theloadingconfig[resType]);

            loopRes(theloadingconfig[resType], resType);

            return;

        end

        local keys = table.keys(t);

        totalNum = totalNum + #keys;

        local tempIndex = ;

        local function loadRes(  )

            self.curLoadingNum = self.curLoadingNum + ;

            if self.curLoadingNum > self.totalLoadingNum then

                return;

            end

            --print("====",self.curLoadingNum , totalNum)

            if self.curLoadingNum > totalNum then

                tempIndex = ;

                curIndex = curIndex + ;

                local resType = resTypes[curIndex];

                self.curLoadingNum = self.curLoadingNum - ;

                loopRes(theloadingconfig[resType], resType);

                return;

            end

            local key = keys[tempIndex];

            local value = t[key];

            tempIndex = tempIndex + ;

            if (tolua.type(value) == "table") then

                loopRes( value );

            elseif (tolua.type(value) == "string") then

                if resType == SOUNDTYPE then

                    -- 1.异步声音加载

                    --print("加载声音：", value);

                    Audio.preloadEffect(value);

                    performWithDelay(function (  )

                        loadRes();

                    end, CCDirector:sharedDirector():deltaTime())

                end

                if resType == TEXTURETYPE then

                    -- 2.异步纹理加载

                    --print("加载纹理：", value);

                    CCTextureCache:sharedTextureCache():addImageAsync(value, function ( )

                        self:CheckedResLoaded(); -- 检测下是否加载完毕

                        performWithDelay(function (  )

                            loadRes();

                        end, CCDirector:sharedDirector():deltaTime())

                    end);

                end

                if resType == ATLASTYPE then

                    -- 2.异步纹理加载

                    local png = string.gsub(value, ".plist", ".png")

                    --print("加载图集：",png);

                    CCTextureCache:sharedTextureCache():addImageAsync(png, function ( )

                        -- 添加plist 到 CCSpriteFrameCache

                        CCSpriteFrameCache:sharedSpriteFrameCache():addSpriteFramesWithFile(value)

                        self:CheckedResLoaded(); -- 检测下是否加载完毕

                        performWithDelay(function (  )

                            loadRes();

                        end, CCDirector:sharedDirector():deltaTime())

                    end);

                end

                if resType == ANIMATIONTYPE or resType == EFFECTTYPE then

                    --3.异步动画加载

                    local plist = string.gsub(value, ".xml", ".plist")

                    local png = string.gsub (value, ".xml", ".png")

                    --print("加载骨骼动画：",png, plist, value);

                    CCArmatureDataManager:sharedArmatureDataManager():addArmatureFileInfoAsync(png, plist, value, function (  )

                        self:CheckedResLoaded(); -- 检测下是否加载完毕

                        performWithDelay(function (  )

                            loadRes();

                        end, CCDirector:sharedDirector():deltaTime())

                    end)

                end

            end

        end

        loadRes();

    end

    -- 计算加载的资源总数

    local function size( config )

        return #table.keys(config.textures)

        + #table.keys(config.sounds)

        + #table.keys(config.fonts)

        + #table.keys(config.animations)

        + #table.keys(config.atlas)

        + #table.keys(config.effects);

    end

    self.totalLoadingNum = size(theloadingconfig);

    -- 加载场景资源

    local resType = resTypes[curIndex];

    print("加载类型：",resType);

    print("加载：",theloadingconfig[resType]);

    loopRes(theloadingconfig[resType], resType);

end

-- 检测是否加载完毕

function LoadingController:CheckedResLoaded(  )

    if self.curLoadingNum <= self.totalLoadingNum then

        -- 1.更新当前进度

        local percent = math.modf(self.curLoadingNum *  / self.totalLoadingNum)

        self.btmLabel:setString(string.format("Loading %s%%", percent));

    end

    -- 2.检测下是否加载完毕

    if (self.curLoadingNum == self.totalLoadingNum) then

        local function onComplete(event)

            print ("loading res finished!")

            self.isLoaded = true;

            -- 切换场景

            self.nextScene = ObjectFactory.newScene(self.curSceneName);

            SceneM.curScene = self.nextScene;

            self.nextScene:addComponent(self.curSceneName,SceneM.getSceneController(self.curSceneName));

            -- 关闭加载层

            SceneM.destroy(self.uiLayer);

            -- 开启触摸消息

            CCDirector:sharedDirector():getTouchDispatcher():setDispatchEvents(true);

            -- 记录配置文件路径

            SceneM.lastSceneName = self.curSceneName;

            -- 切换到新场景

            SceneM.replaceScene(self.nextScene, "crossfade", 0.2, Screen.COLOR_WHITE);

        end

        -- 等待一帧 不然最后一次无法绘制

        performWithDelay(onComplete, CCDirector:sharedDirector():deltaTime() * );

    end

end

-- 清理资源

function LoadingController:cleanup(  )

    CCDirector:sharedDirector():getActionManager():removeAllActions();

    -- 获得上一个场景配置，根据配置删除

    if SceneM.lastSceneName then

        local lastConfig = res[SceneM.lastSceneName];

        local function removeRes( t , resType)

            if t == nil or type(t) ~= "table" then

                return;

            end

            for key, value in pairs(t) do

                 if (tolua.type(value) == "table") then

                    loopRes( value );

                elseif (tolua.type(value) == "string") then

                    if resType == SOUNDTYPE then

                        -- 1.删除声音

                        Audio.unloadSound(value);

                    end

                    if resType == TEXTURETYPE then

                        -- 2.删除纹理

                        CCTextureCache:sharedTextureCache():removeTextureForKey(value);

                    end

                    if resType == ATLASTYPE then

                        -- 3.删除plist纹理

                        CCSpriteFrameCache:sharedSpriteFrameCache():removeSpriteFramesFromFile(value);

                        value = string.gsub(value, ".plist", ".png");

                        CCTextureCache:sharedTextureCache():removeTextureForKey(value);

                    end

                    if resType == ANIMATIONTYPE then

                        -- 4.删除动画

                        print("删除骨骼动画资源:",value);

                        value = string.gsub(value, ".xml", ".png");

                        CCTextureCache:sharedTextureCache():removeTextureForKey(value);

                        value = string.gsub(value, ".png", ".plist");

                        CCSpriteFrameCache:sharedSpriteFrameCache():removeSpriteFramesFromFile(value);

                        --CCArmatureDataManager:purge();

                    end

                end

            end

        end

        removeRes(lastConfig.sounds, SOUNDTYPE);          --删除声音资源

        removeRes(lastConfig.textures, TEXTURETYPE);       --删除纹理资源

        removeRes(lastConfig.atlas, ATLASTYPE);           --删除图集资源

        removeRes(lastConfig.animations, ANIMATIONTYPE);    --删除动画资源

        removeRes(lastConfig.effects, ANIMATIONTYPE);    --删除动画资源

        -- 移除临时动态公共资源

        if ResM.tempPathCache then

            removeRes(ResM.tempPathCache.sounds, SOUNDTYPE);          --删除声音资源

            removeRes(ResM.tempPathCache.textures, TEXTURETYPE);       --删除纹理资源

            removeRes(ResM.tempPathCache.atlas, ATLASTYPE);           --删除图集资源

            removeRes(ResM.tempPathCache.animations, ANIMATIONTYPE);    --删除动画资源

        end

        ResM.init();

        CCTextureCache:sharedTextureCache():dumpCachedTextureInfo();

    end

    -- CCSpriteFrameCache:purgeSharedSpriteFrameCache();

    -- CCTextureCache:sharedTextureCache():removeAllTextures();

    -- CCArmatureDataManager:purge();

end

return LoadingController;