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http://m.shnenglu.com/zdhsoft/archive/2014/07/25/207805.html用CCLabelTTF顯示的數(shù)字不好看，于是就想到用圖片來代理。目前網(wǎng)上的實(shí)現(xiàn)都是把每個(gè)數(shù)字做一個(gè)CCSprite組合的方式。但是我想，動(dòng)態(tài)生成紋理的方式。沒有就只好自己手動(dòng)寫一個(gè)。
頭文件
#ifndef _X_NUMBER_H_
#define _X_NUMBER_H_
#include <cocos2d.h>
#include <xtype.h>
namespace cocos2d
{
//基于圖片顯示的數(shù)字
/*
這個(gè)類不是用一個(gè)一個(gè)數(shù)字拼起來，而是渲染成一個(gè)獨(dú)立的紋理
zdh::XDDWord是一個(gè)64位無符號(hào)整數(shù)
*/
class CCPictureNumber : public CCSprite
{
public:
typedef CCSprite Inherited;
public:
CCPictureNumber();
~CCPictureNumber();
virtual bool init(void);
int BuildNumber(zdh::XDDWord paramNumber, const char * paramNumberResName);
int BuildNumber(zdh::XDDWord paramNumber, CCTexture2D * paramTexture);
int BuildNumber(zdh::XDDWord paramNumber);
CREATE_FUNC(CCPictureNumber);
void setNumberTexture(CCTexture2D * paramTexture);
void setNumberTexture(const char * paramNumberResName);
CCTexture2D * getNumberTexture();
zdh::XDDWord getNumber() const;
void setNumber(zdh::XDDWord paramNumber);
int Build();
private:
CCTexture2D * m_NumberTexture;
zdh::XDDWord m_Number;
};
}
#endif
源文件
#include "xpicture_number.h"
#include <xstring.h>
namespace cocos2d
{
//--------------------------------------------------------------------------------------
//從指定資源名稱構(gòu)建
int CCPictureNumber::BuildNumber(zdh::XDDWord paramNumber, const char * paramNumberResName)
{
this->setNumber(paramNumber);
this->setNumberTexture(CCTextureCache::sharedTextureCache()->addImage(paramNumberResName));
return this->Build();
}
//--------------------------------------------------------------------------------------
//從指定紋理構(gòu)建
int CCPictureNumber::BuildNumber(zdh::XDDWord paramNumber, CCTexture2D * paramTexture)
{
this->setNumber(paramNumber);
this->setNumberTexture(paramTexture);
return this->Build();
}
//--------------------------------------------------------------------------------------
int CCPictureNumber::BuildNumber(zdh::XDDWord paramNumber)
{
this->setNumber(paramNumber);
return this->Build();
}
//--------------------------------------------------------------------------------------
bool CCPictureNumber::init(void)
{
if (!Inherited::init()) return false;
return true;
}
//--------------------------------------------------------------------------------------
CCPictureNumber::CCPictureNumber()
{
m_NumberTexture = nullptr;
m_Number = 0;
}
//--------------------------------------------------------------------------------------
CCPictureNumber::~CCPictureNumber()
{
if (zdh::isNotNULL(m_NumberTexture))
{
m_NumberTexture->release();
}
}
//--------------------------------------------------------------------------------------
void CCPictureNumber::setNumberTexture(CCTexture2D * paramTexture)
{
if (m_NumberTexture == paramTexture) return;
if (zdh::isNotNULL(m_NumberTexture))
{
m_NumberTexture->release();
}
m_NumberTexture = paramTexture;
if (zdh::isNotNULL(m_NumberTexture))
{
m_NumberTexture->retain();
}
}
//--------------------------------------------------------------------------------------
void CCPictureNumber::setNumberTexture(const char * paramNumberResName)
{
this->setNumberTexture(CCTextureCache::sharedTextureCache()->addImage(paramNumberResName));
}
//--------------------------------------------------------------------------------------
CCTexture2D * CCPictureNumber::getNumberTexture()
{
return m_NumberTexture;
}
//--------------------------------------------------------------------------------------
int CCPictureNumber::Build()
{
if (zdh::isNULL(m_NumberTexture)) return zdh::ERR_FAIL;
zdh::XAnsiString strNumber(m_Number); //將整數(shù)轉(zhuǎn)換為字符串
int iNumCount = strNumber.getLength(); //取得字符個(gè)數(shù)
CCSize stSize = m_NumberTexture->getContentSize(); //取得紋理大小，要求紋理中每個(gè)數(shù)字都是等寬等高，并依照0123456789排列
int iNumWidth = (int)stSize.width / 10; //紋理中每個(gè)數(shù)字的寬度
int iNumHeight = (int)stSize.height; //紋理中每個(gè)數(shù)字的高度
CCRenderTexture * pRT = CCRenderTexture::create(iNumWidth * iNumCount, iNumHeight); //創(chuàng)建渲染紋理對(duì)象，并數(shù)字確定寬度
CCSprite * pSprite = CCSprite::create(); //創(chuàng)建精靈對(duì)象，用于繪制數(shù)字
pSprite->setAnchorPoint(0, 0);
pSprite->setTexture(m_NumberTexture);
CCRect stRect;
pRT->begin();
for (int i = 0; i < iNumCount; i++)
{
int iNumber = strNumber[i] - '0';
//設(shè)置要顯示數(shù)字的紋理區(qū)域，這個(gè)區(qū)域是指參數(shù)中paramTexture中區(qū)域
stRect.setRect(iNumber * iNumWidth, 0, iNumWidth, iNumHeight);
pSprite->setTextureRect(stRect, false, stRect.size);
pSprite->setPosition(i * iNumWidth, 0); //計(jì)算顯示的偏移位置
pSprite->visit(); //渲染到pRT中
}
pRT->end();
//取得生成的紋理
this->setTexture(pRT->getSprite()->getTexture());
//設(shè)置顯示的內(nèi)容
stRect.setRect(0, 0, iNumWidth * iNumCount, iNumHeight);
this->setTextureRect(stRect, false, stRect.size);
//默認(rèn)的情況下，通過CCRenderTexture得到的紋理是倒立的，這里需要做一下翻轉(zhuǎn)
this->setFlipY(true);
//釋放資源
delete pSprite;
delete pRT;
return zdh::ERR_OK;
}
//--------------------------------------------------------------------------------------
zdh::XDDWord CCPictureNumber::getNumber() const
{
return m_Number;
}
//--------------------------------------------------------------------------------------
void CCPictureNumber::setNumber(zdh::XDDWord paramNumber)
{
m_Number = paramNumber;
}
}
數(shù)字圖片文件
使用例子
CCPictureNumber * pNum = CCPictureNumber::create();
pNum->BuildNumber(1234567, "ui_play_num05.png");
pNum->setPosition(200, 200);
pNum->setAnchorPoint(0, 0);
this->addChild(pNum, 100);
//