cocos2d-x lua 触摸事件

cocos2d-x lua 触摸事件

version: cocos2d-x 3.6

1.监听

function GameLayer:onEnter()
local eventDispatcher = self:getEventDispatcher()

local function onTouchBegan(touch, event)
local locationInNode = self:convertToNodeSpace(touch:getLocation())
local s = self:getContentSize()
local rect = cc.rect(0, 0, s.width, s.height)

if cc.rectContainsPoint(rect, locationInNode) then
self:setColor(cc.c3b(255, 0, 0))
return true
end

return false
end

local function onTouchMoved(touch, event)

end

local  function onTouchEnded(touch, event)
self:setColor(cc.c3b(255, 255, 255))
end

local listener = cc.EventListenerTouchOneByOne:create()
self._listener = listener
listener:setSwallowTouches(true)

listener:registerScriptHandler(onTouchBegan,cc.Handler.EVENT_TOUCH_BEGAN )
listener:registerScriptHandler(onTouchMoved,cc.Handler.EVENT_TOUCH_MOVED )
listener:registerScriptHandler(onTouchEnded,cc.Handler.EVENT_TOUCH_ENDED )

if 0 == self._fixedPriority then
eventDispatcher:addEventListenerWithSceneGraphPriority(listener, self)
else
eventDispatcher:addEventListenerWithFixedPriority(listener,self._fixedPriority)
end
end

2.移除

function TouchableSpriteWithFixedPriority:onExit()
local eventDispatcher = self:getEventDispatcher()
eventDispatcher:removeEventListener(self._listener)
end

3.注意

onEnter和onExit在lua中不会因节点别add和remove而直接被调用，当子节点被父节点add和remove时，会发送enter和exit的消息，所以需要再初始化节点的时候，监听消息，并在收到消息后调用onEnter或onExit。

http://blog.csdn.net/songcf_faith/article/details/46388899