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Cocos2d-x Lua实现长按事件,
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local MainScene = class("MainScene",cc.load("mvc").ViewBase)
local InfoLayer = class('InfoLayer',function ()
return cc.Layer:create()
end)
function InfoLayer:ctor()
self:setScale(0)
local winSize = cc.Director:getInstance():getWinSize()
local bg = cc.Sprite:create('HelloWorld.png')
bg:setScale(0.8)
bg:setPosition(winSize.width/2,winSize.height/2)
self:addChild(bg)
self:enableNodeEvents()
end
function InfoLayer:onEnter()
self:runAction(cc.EaseBackOut:create(cc.ScaleTo:create(0.3,1)))
end
function InfoLayer:onExit()
end
local touchNode = class('touchNode',function ()
return cc.Node:create()
end)
local longPressTime = 1.5
local preAccTime = 0.5
function touchNode:ctor(Img)
local bg = ccui.ImageView:create(Img)
self:addChild(bg)
local listener = cc.EventListenerTouchOneByOne:create()
listener:registerScriptHandler(function(touch,event)
self.beganPoint = touch:getLocation()
local point = bg:convertToNodeSpace(self.beganPoint)
local rect = cc.rect(0,0,bg:getContentSize().width,bg:getContentSize().height)
if cc.rectContainsPoint(rect,point) then
self.tick = 0
self.moved = false
self.ended = false
local seq = cc.Sequence:create(cc.CallFunc:create(function() self:accumate() end),cc.DelayTime:create(preAccTime))
self.acc = self:runAction(cc.RepeatForever:create(seq))
end
return true
end,cc.Handler.EVENT_TOUCH_BEGAN)
listener:registerScriptHandler(function(touch,event)
self.movedPoint = touch:getLocation()
self.moved = true
end,cc.Handler.EVENT_TOUCH_MOVED)
listener:registerScriptHandler(function(touch,event)
self:stopAction(self.acc)
self.ended = true
end,cc.Handler.EVENT_TOUCH_ENDED)
self:getEventDispatcher():addEventListenerWithSceneGraPHPriority(listener,self)
local function onNodeEvent(event)
if event == 'exit' then
self:getEventDispatcher():removeEventListener(listener)
end
end
self:registerScriptHandler(onNodeEvent)
end
function touchNode:accumate()
self.tick = self.tick + preAccTime
if self.tick > longPressTime - preAccTime / 2 and self.tick <= longPressTime + preAccTime / 2 then
self:stopAction(self.acc)
if not self.ended then
local function longPress()
local layer = InfoLayer.new()
cc.Director:getInstance():getRunningScene():addChild(layer)
end
if self.moved then
if math.abs(self.beganPoint.x - self.movedPoint.x) < 10 and math.abs(self.beganPoint.y - self.movedPoint.y) < 10 then
longPress()
end
else
longPress()
end
end
end
end
function MainScene:ctor()
local winSize = cc.Director:getInstance():getWinSize()
local touchNode = touchNode.new('DS07.png')
touchNode:setPosition(winSize.width/2,winSize.height/2)
self:addChild(touchNode)
end
return MainScene
原文链接:https://www.f2er.com/cocos2dx/339644.html