-- avoid memory leak
collectgarbage("setpause", 100)
collectgarbage("setstepmul", 5000)

local cclog = function(...)
    print(string.format(...))
end

require "hello2"
cclog("result is " .. myadd(3, 5))

---------------

local winSize = CCDirector:sharedDirector():getWinSize()

-- add the moving dog
local function creatDog()
    local frameWidth = 105
    local frameHeight = 95

    -- create dog animate
    local textureDog = CCTextureCache:sharedTextureCache():addImage("dog.png")
    local rect = CCRectMake(0, 0, frameWidth, frameHeight)
    local frame0 = CCSpriteFrame:createWithTexture(textureDog, rect)
    rect = CCRectMake(frameWidth, 0, frameWidth, frameHeight)
    local frame1 = CCSpriteFrame:createWithTexture(textureDog, rect)

    local spriteDog = CCSprite:createWithSpriteFrame(frame0)
    spriteDog.isPaused = false
    spriteDog:setPosition(0, winSize.height / 4 * 3)

    local animFrames = CCArray:create(2)

    animFrames:addObject(frame0)
    animFrames:addObject(frame1)

    local animation = CCAnimation:create(animFrames, 0.5)
    local animate = CCAnimate:create(animation);
    spriteDog:runAction(CCRepeatForever:create(animate))

    -- moving dog at every frame
    local function tick()
        if spriteDog.isPaused then return end
        local x, y = spriteDog:getPosition()
        if x > winSize.width then
            x = 0
        else
            x = x + 1
        end

        spriteDog:setPositionX(x)
    end

    CCDirector:sharedDirector():getScheduler():scheduleScriptFunc(tick, 0, false)

    return spriteDog
end

-- create farm
local function createLayerFram()
    local layerFarm = CCLayer:create()

    -- add in farm background
    local bg = CCSprite:create("farm.jpg")
    bg:setPosition(winSize.width / 2 + 80, winSize.height / 2)
    layerFarm:addChild(bg)

    -- add land sprite
    for i = 0, 3 do
        for j = 0, 1 do
            local spriteLand = CCSprite:create("land.png")
            spriteLand:setPosition(200 + j * 180 - i % 2 * 90, 10 + i * 95 / 2)
            layerFarm:addChild(spriteLand)
        end
    end

    -- add crop
    local frameCrop = CCSpriteFrame:create("crop.png", CCRectMake(0, 0, 105, 95))
    for i = 0, 3 do
        for j = 0, 1 do
            local spriteCrop = CCSprite:create(frameCrop);
            spriteCrop:setPosition(10 + 200 + j * 180 - i % 2 * 90, 30 + 10 + i * 95 / 2)
            layerFarm:addChild(spriteCrop)
        end
    end

    -- add moving dog
    local spriteDog = creatDog()
    layerFarm:addChild(spriteDog)

    -- handing touch events
    local touchBeginPoint = nil

    local function onTouchBegan(x, y)
        cclog("onTouchBegan: %0.2f, %0.2f", x, y)
        touchBeginPoint = {x = x, y = y}
        spriteDog.isPaused = true
        -- CCTOUCHBEGAN event must return true
        return true
    end

    local function onTouchMoved(x, y)
        cclog("onTouchMoved: %0.2f, %0.2f", x, y)
        if touchBeginPoint then
            local cx, cy = layerFarm:getPosition()
            layerFarm:setPosition(cx + x - touchBeginPoint.x,
                                  cy + y - touchBeginPoint.y)
            touchBeginPoint = {x = x, y = y}
        end
    end

    local function onTouchEnded(x, y)
        cclog("onTouchEnded: %0.2f, %0.2f", x, y)
        touchBeginPoint = nil
        spriteDog.isPaused = false
    end

    local function onTouch(eventType, x, y)
        if eventType == CCTOUCHBEGAN then
            return onTouchBegan(x, y)
        elseif eventType == CCTOUCHMOVED then
            return onTouchMoved(x, y)
        else
            return onTouchEnded(x, y)
        end
    end

    layerFarm:registerScriptTouchHandler(onTouch)
    layerFarm:setTouchEnabled(true)

    return layerFarm
end


-- create menu
local function createLayerMenu()
    local layerMenu = CCLayer:create()

    local menuPopup, menuTools, effectID

    local function menuCallbackClosePopup()
        -- stop test sound effect
        SimpleAudioEngine:sharedEngine():stopEffect(effectID)
        menuPopup:setVisible(false)
    end

    local function menuCallbackOpenPopup()
        -- loop test sound effect
        effectID = SimpleAudioEngine:sharedEngine():playEffect("effect1.wav")
        menuPopup:setVisible(true)
    end

    -- add a popup menu
    local menuPopupItem = CCMenuItemImage:create("menu2.png", "menu2.png")
    menuPopupItem:setPosition(0, 0)
    menuPopupItem:registerScriptHandler(menuCallbackClosePopup)
    menuPopup = CCMenu:createWithItem(menuPopupItem)
    menuPopup:setPosition(winSize.width / 2, winSize.height / 2)
    menuPopup:setVisible(false)
    layerMenu:addChild(menuPopup)

    -- add the left-bottom "tools" menu to invoke menuPopup
    local menuToolsItem = CCMenuItemImage:create("menu1.png", "menu1.png")
    menuToolsItem:setPosition(0, 0)
    menuToolsItem:registerScriptHandler(menuCallbackOpenPopup)
    menuTools = CCMenu:createWithItem(menuToolsItem)
    menuTools:setPosition(30, 40)
    layerMenu:addChild(menuTools)

    return layerMenu
end

-- play background music, preload effect
SimpleAudioEngine:sharedEngine():playBackgroundMusic("background.mp3", true);
SimpleAudioEngine:sharedEngine():preloadEffect("effect1.wav");

-- run
local sceneGame = CCScene:create()
sceneGame:addChild(createLayerFram())
sceneGame:addChild(createLayerMenu())
CCDirector:sharedDirector():runWithScene(sceneGame)