lua写项目常用知识点2

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lua有关网站http://blog.51cto.com/shahdza/1569003

复选框

local checkbox1=node:getChildByName("CheckBox_1")
music=userDefualt:getBoolForKey("yinyue1");
checkbox1:setSelected(music);
checkbox1:addEventListener(function ( sender,eventType)
-- 0==ccui.CheckBoxEventType.selected
-- 1==ccui.CheckBoxEventType.unselected
if eventType==0 then
cc.SimpleAudioEngine:getInstance():resumeMusic()
userDefualt:setBoolForKey("yinyue1",true);
userDefualt:flush();
slider:setEnabled(true );
print("点击")
elseif eventType==1 then
userDefualt:setBoolForKey("yinyue1",false);
userDefualt:flush();
slider:setEnabled(false );
cc.SimpleAudioEngine:getInstance():pauseMusic()
end

end)

手动滑块

用cocos2d studio拼

slider:setEnabled(music);
yinliang=userDefualt:getIntegerForKey("yinliang");
slider:setMaxPercent(10);
slider:setPercent(yinliang);
slider:addEventListener(function (sender,eventType)
if eventType==ccui.SliderEventType.percentChanged then
local voile=slider:getPercent();
self.volic=voile

cc.SimpleAudioEngine:getInstance():setMusicVolume(voile*0.1);
userDefualt:setIntegerForKey("yinliang",voile);
userDefualt:flush();
end

end)

-- 触摸接听

-- local listener=cc.EventListenerTouchOneByOne:create()

-- listener:registerScriptHandler(function ( touch,event )
-- print("began")
-- return true
-- end,cc.Handler.EVENT_TOUCH_BEGAN )

-- listener:registerScriptHandler(function ( touch,event )
-- print("ended")

-- end,cc.Handler.EVENT_TOUCH_ENDED)

-- listener:registerScriptHandler(function ( touch,event )
-- print("moved")
-- end,cc.Handler.EVENT_TOUCH_MOVED)

-- listener:registerScriptHandler(function ( touch,event )
-- print("canselled")
-- end,cc.Handler.EVENT_TOUCH_CANCELLED)
-- cc.Director:getInstance():getEventDispatcher():addEventListenerWithSceneGraphPriority(listener, layer)

或

layer:onTouch(function( event )
if event.name=="began" then
print(event.x,event.y)
return true
elseif event.name=="moved" then
print("moved")
elseif event.name=="ended" then
print("ended")
end

end)

碰撞

点面碰撞

if cc.rectContainsPoint(self.butterfly:getBoundingBox(),cc.p(event.x,event.y)) then

print("碰撞了。。。。。。。")

end

面面碰撞

cc.rectIntersectsRect(rect1, rect2）

-- -蝴蝶动画
--加载到精灵帧缓存
display.loadSpriteFrames("hudie.plist","hudie.png")

self.butterfly =display.newSprite("#1.png",display.right -150,display.top-150)
self.butterfly:setScale(2)
layer:addChild(self.butterfly)

self:startAnimate( )

function StartScene:startAnimate()
--创建精灵祯动画
local frames =display.newFrames("%d.png",0 ,8)
local animation =display.newAnimation(frames,0.1)
self.butterfly:playAnimationForever(animation)
local moveto1=cc.MoveTo:create(2 ,cc.p(display.left+150,display.top-150))
local moveto2= cc.MoveTo:create(1,cc.p(260,260))
seq= cc.Sequence: create(moveto1,moveto2)
self.butterfly: runAction(seq)

end

或

加载到精灵帧缓存

local spriteFrame = CCSpriteFrameCache:getInstance()

spriteFrame:addSpriteFrames("ant.plist", "ant.png")

local ant= cc.Sprite:createWithSpriteFrame(spriteFrame:getSpriteFrame("ants" .. antNum .. "_0.png"))

self.layer:addChild(ant)

其他都一样（红色字体）

时间调度器

self.antSharedScheduler = self.scene:getScheduler()

-- 或
--self.antShareScheduler = cc.Director:getInstance():getScheduler()

self.antScheduID = self.antSharedScheduler:scheduleScriptFunc(..., 1, false)

scheduleScriptFunc(unsigned int nHandler, float fInterval, bool bPaused)，见该函数原型。
第一个参数是你要注册的回调函数，第二个是执行该函数循环的秒数，第三个参数是是否暂停。
一般使用例子：
scheduleScriptFunc(callbackFunc,0,false)即可。

结束

self.antSharedScheduler:unscheduleScriptEntry(self.antScheduID)

写onEnter( )

local function onNodeEvent( event )
if "enter"==event then
self:onEnter()
elseif "exit"==event then
self:onExit()
end

end

--注册layer的进入退出事件用法
layer:registerScriptHandler(onNodeEvent)

return layer
end

function MainScene:onEnter( )
print("我是onEnter")
end
function MainScene:onExit( )
print("我是onExit")

end

--碰撞检测：蜗牛和刺
function gameScene:collisionListener()
--注册碰撞监听事件
local function onContactBegin(contact)
print("****************************")
local node1=contact:getShapeA():getBody():getNode()
local node2=contact:getShapeB():getBody():getNode()
if (node1:getTag()==600 and node2:getTag()==1000) or (node1:getTag()==1000 and node2:getTag()==600) then
self:flied( )
end
return true
end

local contactListener = cc.EventListenerPhysicsContact:create()
contactListener:registerScriptHandler(onContactBegin, cc.Handler.EVENT_PHYSICS_CONTACT_BEGIN);
local eventDispatcher = cc.Director:getInstance():getEventDispatcher()
eventDispatcher:addEventListenerWithSceneGraphPriority(contactListener, self.layer);