cocos2d-x lua 函数笔记

—设置叠加模式，高亮
setBlend=function(sp,ctype)
    local blendType={
        {GL_ONE,GL_ONE_MINUS_SRC_ALPHA},
        {GL_SRC_ALPHA,GL_ONE}
    }
    local cc=ccBlendFunc();
    cc.src=blendType[ctype][1];
    cc.dst=blendType[ctype][2];
    sp:setBlendFunc(cc);
end

—赋值变量
function nvl(var,value)
    if var==nil then    
        return value;
    else
        return var;
    end
end

—延迟任务
setTimeout=function(timeout,fn)
    local cs=CCDirector::sharedDirector():getRunningScene();
    if cs~=nil then
        local wait=CCDelayTime::create(timeout);
        local arr=CCArray:create();
        arr:addObject(wait);
        arr:addObject(CCCallFuncN:create(funtion()
            fn();
        end
        ));
    local seq=CCSequence:create(arr);
    cs:runAction(seq);
end

—分割字符串
local split=function(s,p)
    local rt={}
    string.gsub(s,
    ‘[^’..p..’]+’,
    function(w)
        table.insert(rt,w);
    end);
    return rt;
end

—action+callfun
runAction=function(node,action,fn)
    if fn~=nil then
        local act=CCSequence:createWithTwoActions(action,CCCallFuncN:create(
        function()
            fn();
        end));
    else
        node:runAction(action);
    end
end