cocos2d lua 设置触摸回调

最新推荐文章于 2018-07-17 15:24:05 发布

ningcaicheng

最新推荐文章于 2018-07-17 15:24:05 发布

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分类专栏： cocos2d 文章标签： lua cocos2d class 多点触摸

本文链接：https://blog.youkuaiyun.com/ningcaicheng/article/details/47297187

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本文介绍了一个使用 Cocos2d-x 框架实现的游戏主场景示例代码，该场景中包含了一个可移动的地图元素，并通过触摸事件实现了地图的拖动效果。

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local MainScene = class("MainScene", function()
return display.newScene("MainScene")
end)

function MainScene:ctor()
self.layer = cc.Layer:create()
cc.ui.UILabel.new({
UILabelType = 2, text = "Hello, World", size = 64})
:align(display.CENTER, display.cx, display.cy)
:addTo(self)
self.map = cc.TMXTiledMap:create("test.tmx")
self.layer:addChild(self.map, 0,1)
self.layer:addTo(self)

local function onTouchesMoved(touches, event )
--dump(event)
local n=#touches
local diff = touches[1]:getDelta()
local node = self.layer:getChildByTag(1)
local currentPosX, currentPosY= node:getPosition()
node:setPosition(cc.p(currentPosX + diff.x, currentPosY + diff.y))
end

local listener = cc.EventListenerTouchAllAtOnce:create()

--关键的地方handler(self,self.onTouchesMoved1),直接设置listener:registerScriptHandler(self.onTouchesMoved1,cc.Handler.EVENT_TOUCHES_MOVED) 运行时会出错

listener:registerScriptHandler(handler(self,self.onTouchesMoved1),cc.Handler.EVENT_TOUCHES_MOVED)
local eventDispatcher = self:getEventDispatcher()
eventDispatcher:addEventListenerWithSceneGraphPriority(listener, self.layer)

end

function MainScene:onTouchesMoved1(touches, event )
--dump(event)
local n=#touches
local diff = touches[1]:getDelta()
local node = self.layer:getChildByTag(1)
local currentPosX, currentPosY= node:getPosition()
node:setPosition(cc.p(currentPosX + diff.x, currentPosY + diff.y))
end

function MainScene:onEnter()
end

function MainScene:onExit()
end

return MainScene