Quick Cocos2dx 与 EnterFrame事件

利用EnterFrame做出行走的效果，效果图如下：

具体操作：

1 给self多加一个bg1用作与bg无限循环换位

2 在AnotherScene:onEnter方法里面新增onEnterFrame的排成

3 写了一个简单的onEnterFrame方法用作每帧去更新

完整代码如下：

 1 local AnotherScene = class("AnotherScene", function()
 2     return display.newScene("AnotherScene")
 3 end)
 4 
 5 function AnotherScene:ctor()
 6     self.speed = 2;
 7     self.curBehaviorId = 1;
 8     self.layer = display.newLayer()
 9     self:addChild(self.layer)
10     self.layer:setTouchEnabled(true)
11     self.behaviors = {"anim_walk","anim_eat","anim_placeladder","anim_idle","anim_ladderwalk","anim_laddereat","anim_death"};
12     self.bg = display.newSprite("battle.png",display.cx, display.cy)
13     self.bg1 = display.newSprite("battle.png",display.cx+self.bg:getContentSize().width, display.cy)
14     self.layer:addChild(self.bg)
15     self.layer:addChild(self.bg1)
16 end
17 
18 function AnotherScene:onTouch(event, x, y)
19     print("Touched at %d %d",x,y)
20     self.curBehaviorId = self.curBehaviorId + 1;
21     if self.curBehaviorId > #self.behaviors then
22         self.curBehaviorId = 1;
23     end
24     print("Now playing ", self.curBehaviorId , #self.behaviors, self.behaviors[self.curBehaviorId])
25     self.animation:play(self.behaviors[self.curBehaviorId])
26 end
27 
28 function AnotherScene:onEnterFrame(dt)
29     local tempX = self.bg:getPositionX();
30     local tempW = self.bg:getContentSize().width;
31     tempX = tempX - self.speed;
32     if tempX <= display.cx - tempW then
33         self.bg:setPositionX(display.cx + tempW)
34     else
35         self.bg:setPositionX(tempX)
36     end
37 
38     tempX = self.bg1:getPositionX();
39     tempW = self.bg1:getContentSize().width;
40     tempX = tempX - self.speed;
41     if tempX <= display.cx - tempW then
42         self.bg1:setPositionX(display.cx + tempW)
43     else
44         self.bg1:setPositionX(tempX)
45     end
46 end
47 
48 function AnotherScene:onEnter()
49     ui.newTTFLabel({text = "Yo! Yo! Check Out!", size = 64, align = ui.TEXT_ALIGN_CENTER})
50         :pos(display.cx, display.cy)
51         :addTo(self.layer)
52 
53     local manager = CCArmatureDataManager:sharedArmatureDataManager()
54     manager:addArmatureFileInfo("Zombie.png","Zombie.plist","Zombie.xml")
55     local zombie = CCNodeExtend.extend(CCArmature:create("Zombie_ladder"))
56     zombie:connectMovementEventSignal(function(__evtType, __moveId)
57             echoInfo("movement, evtType: %d, moveId: %s", __evtType, __moveId)
58         end)
59     self.animation = zombie:getAnimation()
60     self.animation:setAnimationScale(0.5)
61     self.animation:play("anim_walk")
62     zombie:setPosition(display.cx, display.cy)
63     zombie:setScaleX(-1)
64     self.layer:addChild(zombie)
65     self.layer:addTouchEventListener(function(event,x,y)
66         return self:onTouch(event, x,y)
67         end)    
68     self.layer:setTouchEnabled(true)
69     self:scheduleUpdate(function(dt) 
70         self:onEnterFrame(dt)
71     end)
72 end
73 return AnotherScene

也可以去我的git里面下载源代码和资源：https://github.com/AdoBeatTheWorld/waytomobile

game003即为当前的项目，问我为啥没有把项目分出来，我只能说我.....很.....懒。