cocos2d-x Number(图片显示数字)

// // Number.cpp // PetSprite // // Created by Wangzhexian on 13-4-10. // // #include "Number.h" #include <sstream> bool Number::init() { if (!CCLayer::init()) { return false; } m_aligment = NUMBER_ALIGNMENT_LEFT; m_strNumber[0] = '0'; m_strNumber[1] = '\0'; m_ready = false; m_offsetX = 0; m_numberLength = 0; m_NumberStore = new CCArray(); for (int i = 0; i<MAX_NUMBER_LENGTH; i++) { CCSprite* sprite = new CCSprite(); sprite->init(); sprite->autorelease(); sprite->setVisible(false); this->addChild(sprite); m_NumberStore->addObject(sprite); } return true; } void Number::setKeyName(const char* _keyName) { char buff[15]; sprintf(buff, "%s0.png",_keyName); CCTexture2D* texture = CCTextureCache::sharedTextureCache()->addImage(buff); if (texture) { m_ready = true; m_keyName = _keyName; }else{ CCLog("%s:图片关键字无效"); } } void Number::setNumber(const char* number) { if (!m_ready ) { return; } int len = strlen(number); if (len>MAX_NUMBER_LENGTH-1) { len = MAX_NUMBER_LENGTH-1; } m_numberLength = len; memcpy(m_strNumber, number, len); m_strNumber[MAX_NUMBER_LENGTH-1] = '\0'; updateNumber(); } void Number::setNumber(std::string &number) { setNumber(number.c_str()); } void Number::setNumber(float number) { char buff[MAX_NUMBER_LENGTH]; std::stringstream os; os<<number; os>>buff; setNumber(buff); } void Number::setNumber(int number) { char buff[MAX_NUMBER_LENGTH]; std::stringstream os; os<<number; os>>buff; setNumber(buff); } void Number::setOffsetX(float _rate) { m_offsetX = _rate; } void Number::updateNumber() { if (!m_ready) { return; } switch (m_aligment) { case NUMBER_ALIGNMENT_CENTER: { centerUpdate(); } break; case NUMBER_ALIGNMENT_LEFT: { leftUpdate(); break; } case NUMBER_ALIGNMENT_RIGHT: { rightUpdate(); break; } default: break; } } void Number::leftUpdate() { CCSprite* sp = (CCSprite*)m_NumberStore->objectAtIndex(0); CCSize size = sp->boundingBox().size; float startPos = size.width*0.5; float offset = size.width*(1-m_offsetX); showNumber(startPos,offset); } void Number::rightUpdate() { CCSprite* sp = (CCSprite*)m_NumberStore->objectAtIndex(0); CCSize size = sp->boundingBox().size; float offset = size.width*(1-m_offsetX); float startPos = -(size.width*0.5 + (m_numberLength - 1)*offset); showNumber(startPos,offset); } void Number::centerUpdate() { CCSprite* sp = (CCSprite*)m_NumberStore->objectAtIndex(0); CCSize size = sp->boundingBox().size; float offset = size.width*(1-m_offsetX); float startPos = -(size.width*0.5 + (m_numberLength - 1)*offset*0.5); showNumber(startPos,offset); } void Number::showNumber(float startPos,float offset) { std::string nameBuff; for (int i = 0; i<m_numberLength; i++) { CCSprite* sp = (CCSprite*)m_NumberStore->objectAtIndex(i); if (m_strNumber[i]=='.') { nameBuff = m_keyName+"p.png"; }else{ nameBuff = m_keyName; nameBuff+= m_strNumber[i]; nameBuff+=".png"; // sprintf(nameBuff, "%s%c.png",m_keyName.c_str(),m_strNumber[i]); } CCTexture2D* texture = CCTextureCache::sharedTextureCache()->addImage(nameBuff.c_str()); sp->setTexture(texture); CCRect rect = CCRectZero; rect.size = texture->getContentSize(); sp->setTextureRect(rect); sp->setPosition(ccp(startPos, 0)); startPos+=offset; sp->setVisible(true); nameBuff.clear(); } for (int i = m_numberLength; i<MAX_NUMBER_LENGTH; i++) { CCSprite* sp = (CCSprite*)m_NumberStore->objectAtIndex(i); sp->setVisible(false); } } void Number::setAlignment(NUMBER_ALIGNMENT _aligment) { if (_aligment != m_aligment && m_ready) { m_aligment = _aligment; updateNumber(); } } void Number::onExit() { m_NumberStore->release(); }