Mac下cocos2dx3.1用Cocos IDE写的Lua binding篇01

本人Lua新手，写着玩玩。

新建一个模版project。

一、改动main.lua

require "Cocos2d"

require "Cocos2dConstants"

-- cclog

cclog = function(...)

    print(string.format(...))

end

-- for CCLuaEngine traceback

function __G__TRACKBACK__(msg)

    cclog("----------------------------------------")

    cclog("LUA ERROR: " .. tostring(msg) .. " ")

    cclog(debug.traceback())

    cclog("----------------------------------------")

    return msg

end

local function main()

    collectgarbage("collect")

    -- avoid memory leak

    collectgarbage("setpause", 100)

    collectgarbage("setstepmul", 5000)

    cc.Director:getInstance():getOpenGLView():setDesignResolutionSize(480, 320, 0)

    cc.FileUtils:getInstance():addSearchPath("src");

    cc.FileUtils:getInstance():addSearchPath("res");

    --support debug

    local targetPlatform = cc.Application:getInstance():getTargetPlatform()

    if (cc.PLATFORM_OS_IPHONE == targetPlatform) or (cc.PLATFORM_OS_IPAD == targetPlatform) or

        (cc.PLATFORM_OS_ANDROID == targetPlatform) or (cc.PLATFORM_OS_WINDOWS == targetPlatform) or

        (cc.PLATFORM_OS_MAC == targetPlatform) then

        cclog("result is ")

        --require('debugger')()

    end

    -- run

    local sceneGame = cc.Scene:create()

    sceneGame:addChild(require("scripts.StartScene"))

    if cc.Director:getInstance():getRunningScene() then

        cc.Director:getInstance():replaceScene(sceneGame)

    else

        cc.Director:getInstance():runWithScene(sceneGame)

    end

end

local status, msg = xpcall(main, __G__TRACKBACK__)

if not status then

    error(msg)

end

二、新建一个目录scripts,当中新建一个StartScene.lua文件

local sceneStart = nil

visibleSize = cc.Director:getInstance():getVisibleSize()

-- create text

local function createText()

    local alert = ccui.Text:create()

    alert:setString("Hello World")

    alert:setFontName("Marker Felt")

    alert:setFontSize(30)

    alert:setColor(cc.c3b(255, 255, 0))

    alert:setPosition(cc.p(visibleSize.width / 2.0, visibleSize.height / 2.0 ))

    return alert

end

-- create farm

local function createLayerFarm()

    local layerFarm = cc.Layer:create()

    -- add text

    local spriteText = createText()

    layerFarm:addChild(spriteText)

    return layerFarm

end

if sceneStart == nil then

    sceneStart = cc.Scene:create()

    sceneStart:addChild(createLayerFarm())

end

return sceneStart