.h

#pragma once
#include "cocos2d.h"
#include <iostream>
#include <stdio.h>

USING_NS_CC;
using namespace std;
class FlowWorld :public Node
{
protected:
Node* _holder;
Sprite* _newsBg;
Label* _news;
DrawNode* _shap;
ClippingNode* _cliper;

public:

static FlowWorld* fWorld;
static FlowWorld* getIntance();

FlowWorld* createFW(Sprite* sp);

FlowWorld();
~FlowWorld();

void scrollText(float);

CREATE_FUNC(FlowWorld);
};

2..cpp

#include "FlowWorld.h" #include "ScriptData.h" #include "utill/SXMJUtill.h" FlowWorld::FlowWorld() { _holder = NULL; _newsBg = NULL; _news = NULL; _shap = NULL; _cliper = NULL; } FlowWorld::~FlowWorld() {} FlowWorld* FlowWorld::fWorld = NULL; FlowWorld* FlowWorld::getIntance(){ if (!fWorld) { fWorld = new FlowWorld(); } return fWorld; } FlowWorld* FlowWorld::createFW(Sprite* sp){ Point p = Point(130.0f,0.0f); float w = 600.0f; float h = 80.0f; auto shap = DrawNode::create(); shap->clear(); //标记显示的矩形区域 Point point[4] = { Point(p.x,p.y),Point(p.x + w,p.y + h),Point(p.x,h) };//标记显示的矩形区域 shap->drawPolygon(point,4,Color4F(355,255,255),2,Color4F(255,255)); shap->setColor(Color3B::RED);//剪切用于显示的矩形区域，参数对应；用于标识区域的Point(Vec2)数组指针，数组长度，填充颜色，边框宽度，边框颜色。 auto cliper = ClippingNode::create(); cliper->setStencil(shap); cliper->setAnchorPoint(Point(0.5,0.5)); vector<string>str; str.push_back(ScriptData<string>("Message1").Value()); str.push_back(ScriptData<string>("Message2").Value()); str.push_back(ScriptData<string>("Message3").Value()); str.push_back(ScriptData<string>("Message1").Value()); str.push_back(ScriptData<string>("Message2").Value()); str.push_back(ScriptData<string>("Message3").Value()); str.push_back(ScriptData<string>("Message1").Value()); _news = Label::create(SXMJUtill::getIntance()->vectorToString(str),"Microsoft Yahei",24); _news->setColor(Color3B::YELLOW); _news->setPosition(Point(p.x + w - 10,37)); _news->setAnchorPoint(Point::ZERO); cliper->addChild(_news); cliper->addChild(shap); sp->addChild(cliper); //layout(); schedule(schedule_selector(FlowWorld::scrollText));//实现公告文字滚动 return this; } void FlowWorld::scrollText(float) { _news->getPosition().x < (-1 * _news->getContentSize().width) ? _news->setPositionX(720) : _news->setPositionX(_news->getPositionX() - 2); }