cocos2dx原始碼:背景層封裝類
標頭檔案BackgroundLayer.h
#ifndef __BBACKGROUNDLAYER_H__
#define __BBACKGROUNDLAYER_H__
#include "cocos2d.h"
NS_CC_BEGIN
class BackgroundLayer : public LayerColor
{
protected:
GLuint m_wrapS;
GLuint m_wrapT;
public:
static BackgroundLayer* create(const Color4B& color);
static BackgroundLayer* create(const char* pszFileName, Size &winSize, GLuint wrapS = 0, GLuint wrapT = 0);
static BackgroundLayer* create(const char* pszFileName, GLuint wrapS = 0, GLuint wrapT = 0);
virtual bool init(const char* pszFileName, Size &winSize, GLuint wrapS, GLuint wrapT);
};
NS_CC_END
#endif
原始檔BackgroundLayer.cpp
#include "BackgroundLayer.h"
USING_NS_CC;
BackgroundLayer* BackgroundLayer::create(const char* pszFileName, Size &winSize, GLuint wrapS, GLuint wrapT)
{
BackgroundLayer* pobLayer = new BackgroundLayer();
if (pobLayer && pobLayer->init(pszFileName, winSize, wrapS, wrapT))
{
pobLayer->autorelease();
return pobLayer;
}
else
{
CC_SAFE_DELETE(pobLayer);
return NULL;
}
}
BackgroundLayer* BackgroundLayer::create(const char* pszFileName, GLuint wrapS, GLuint wrapT)
{
BackgroundLayer* pobLayer = new BackgroundLayer();
Size winSize = Director::getInstance()->getWinSize();
if (pobLayer && pobLayer->init(pszFileName, winSize, wrapS, wrapT))
{
pobLayer->autorelease();
return pobLayer;
}
else
{
CC_SAFE_DELETE(pobLayer);
return NULL;
}
}
BackgroundLayer* BackgroundLayer::create(const Color4B& color)
{
BackgroundLayer* pobLayer = new BackgroundLayer();
if (pobLayer && pobLayer->initWithColor(color))
{
pobLayer->autorelease();
return pobLayer;
}
else
{
CC_SAFE_DELETE(pobLayer);
return NULL;
}
}
bool BackgroundLayer::init(const char* pszFileName, Size &winSize, GLuint wrapS, GLuint wrapT)
{
if (LayerColor::init())
{
if (!wrapS && !wrapT)
{
Sprite* bgImage = Sprite::create(pszFileName);
if (bgImage)
{
Size bgImageSize = bgImage->getContentSize();
bgImage->setScale(winSize.width / bgImageSize.width, winSize.height / bgImageSize.height);
this->addChild(bgImage);
bgImage->setPosition(Point(winSize.width/2, winSize.height/2));
this->setContentSize(winSize);
return true;
}
}
else
{
Rect winRect(0, 0, winSize.width, winSize.height);
Sprite* bgImage = Sprite::create(pszFileName, winRect);
if (bgImage)
{
Texture2D::TexParams tp = {GL_LINEAR, GL_LINEAR, wrapS, wrapT};
bgImage->getTexture()->setTexParameters(tp);
Size bgImageSize = bgImage->getContentSize();
this->addChild(bgImage);
bgImage->setPosition(Point(winSize.width/2, winSize.height/2));
this->setContentSize(winSize);
return true;
}
}
}
return false;
}
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