mirror of https://github.com/axmolengine/axmol.git
590 lines
18 KiB
C++
590 lines
18 KiB
C++
/****************************************************************************
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Copyright (c) 2010 cocos2d-x.org
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#include "CCProgressTimer.h"
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#include "ccMacros.h"
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#include "CCTextureCache.h"
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#include "CGPointExtension.h"
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#include <float.h>
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namespace cocos2d
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{
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#define kProgressTextureCoordsCount 4
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const char kProgressTextureCoords = 0x1e;
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CCProgressTimer* CCProgressTimer::progressWithFile(const char *pszFileName)
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{
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CCProgressTimer *pProgressTimer = new CCProgressTimer();
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if (pProgressTimer->initWithFile(pszFileName))
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{
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pProgressTimer->autorelease();
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}
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else
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{
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delete pProgressTimer;
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pProgressTimer = NULL;
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}
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return pProgressTimer;
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}
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bool CCProgressTimer::initWithFile(const char *pszFileName)
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{
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return this->initWithTexture(CCTextureCache::sharedTextureCache()->addImage(pszFileName));
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}
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CCProgressTimer* CCProgressTimer::progressWithTexture(cocos2d::CCTexture2D *pTexture)
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{
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CCProgressTimer *pProgressTimer = new CCProgressTimer();
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if (pProgressTimer->initWithTexture(pTexture))
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{
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pProgressTimer->autorelease();
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}
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else
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{
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delete pProgressTimer;
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pProgressTimer = NULL;
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}
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return pProgressTimer;
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}
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bool CCProgressTimer::initWithTexture(cocos2d::CCTexture2D *pTexture)
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{
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m_pSprite = CCSprite::spriteWithTexture(pTexture);
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m_fPercentage = 0.f;
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m_pVertexData = NULL;
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m_nVertexDataCount = 0;
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m_tAnchorPoint = ccp(0.5f, 0.5f);
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setContentSize(m_pSprite->getContentSize());
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m_eType = kCCProgressTimerTypeRadialCCW;
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return true;
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}
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CCProgressTimer::~CCProgressTimer(void)
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{
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if (m_pVertexData)
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{
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delete[] m_pVertexData;
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}
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m_pSprite->release();
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}
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void CCProgressTimer::setPercentage(float fPercentage)
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{
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if (m_fPercentage != fPercentage)
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{
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if (m_fPercentage < 0.f)
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{
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m_fPercentage = 0.f;
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} else
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if (fPercentage > 100.0f)
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{
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m_fPercentage = 100.f;
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}
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else
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{
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m_fPercentage = fPercentage;
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}
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updateProgress();
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}
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}
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void CCProgressTimer::setSprite(cocos2d::CCSprite *pSprite)
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{
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if (m_pSprite != pSprite)
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{
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CCX_SAFE_RELEASE(m_pSprite);
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}
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m_pSprite = pSprite;
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pSprite->retain();
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// Everytime we set a new sprite, we free the current vertex data
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if (m_pVertexData)
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{
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delete[] m_pVertexData;
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m_pVertexData = NULL;
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m_nVertexDataCount = 0;
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}
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}
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void CCProgressTimer::setType(cocos2d::CCProgressTimerType type)
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{
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if (type != m_eType)
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{
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// release all previous information
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if (m_pVertexData)
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{
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delete[] m_pVertexData;
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m_pVertexData = NULL;
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m_nVertexDataCount = 0;
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}
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m_eType = type;
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}
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}
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// Interval
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///
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// @returns the vertex position from the texture coordinate
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///
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CGPoint CCProgressTimer::vertexFromTexCoord(cocos2d::CGPoint texCoord)
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{
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if (m_pSprite->getTexture())
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{
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return ccp(m_pSprite->getTexture()->getContentSize().width * texCoord.x / m_pSprite->getTexture()->getMaxS(),
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m_pSprite->getTexture()->getContentSize().height * (1 - (texCoord.y / m_pSprite->getTexture()->getMaxT())));
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}
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else
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{
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return CGPointZero;
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}
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}
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void CCProgressTimer::updateColor(void)
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{
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ccColor4F color = ccc4FFromccc3B(m_pSprite->getColor());
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if (m_pSprite->getTexture()->getHasPremultipliedAlpha())
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{
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float op = m_pSprite->getOpacity() / 255.f;
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color.r *= op;
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color.g *= op;
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color.b *= op;
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color.a = op;
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}
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else
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{
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color.a = m_pSprite->getOpacity() / 255.f;
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}
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if (m_pVertexData)
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{
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for (int i = 0; i < m_nVertexDataCount; ++i)
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{
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m_pVertexData[i].colors = color;
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}
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}
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}
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void CCProgressTimer::updateProgress(void)
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{
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switch (m_eType)
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{
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case kCCProgressTimerTypeRadialCW:
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case kCCProgressTimerTypeRadialCCW:
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updateRadial();
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break;
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case kCCProgressTimerTypeHorizontalBarLR:
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case kCCProgressTimerTypeHorizontalBarRL:
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case kCCProgressTimerTypeVerticalBarBT:
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case kCCProgressTimerTypeVerticalBarTB:
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updateBar();
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break;
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default:
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break;
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}
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}
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///
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// Update does the work of mapping the texture onto the triangles
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// It now doesn't occur the cost of free/alloc data every update cycle.
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// It also only changes the percentage point but no other points if they have not
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// been modified.
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//
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// It now deals with flipped texture. If you run into this problem, just use the
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// sprite property and enable the methods flipX, flipY.
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///
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void CCProgressTimer::updateRadial(void)
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{
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// Texture Max is the actual max coordinates to deal with non-power of 2 textures
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CGPoint tMax = ccp(m_pSprite->getTexture()->getMaxS(),
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m_pSprite->getTexture()->getMaxT());
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// Grab the midpoint
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CGPoint midpoint = ccpCompMult(m_tAnchorPoint, tMax);
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float alpha = m_fPercentage / 100.f;
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// Otherwise we can get the angle from the alpha
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float angle = 2.f * ((float)M_PI) * (m_eType == kCCProgressTimerTypeRadialCW ? alpha : 1.f - alpha);
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// We find the vector to do a hit detection based on the percentage
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// We know the first vector is the one @ 12 o'clock (top,mid) so we rotate
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// from that by the progress angle around the midpoint pivot
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CGPoint topMid = ccp(midpoint.x, 0.f);
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CGPoint percentagePt = ccpRotateByAngle(topMid, midpoint, angle);
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int index = 0;
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CGPoint hit = CGPointZero;
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if (alpha == 0.f)
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{
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// More efficient since we don't always need to check intersection
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// If the alpha is zero then the hit point is top mid and the index is 0.
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hit = topMid;
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index = 0;
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} else
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if (alpha == 1.f)
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{
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// More efficient since we don't always need to check intersection
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// If the alpha is one then the hit point is top mid and the index is 4.
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hit = topMid;
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index = 4;
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}
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else
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{
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// We run a for loop checking the edges of the texture to find the
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// intersection point
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// We loop through five points since the top is split in half
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float min_t = FLT_MAX;
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for (int i = 0; i <= kProgressTextureCoordsCount; ++i)
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{
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int pIndex = (i + (kProgressTextureCoordsCount - 1)) % kProgressTextureCoordsCount;
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CGPoint edgePtA = ccpCompMult(boundaryTexCoord(i % kProgressTextureCoordsCount), tMax);
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CGPoint edgePtB = ccpCompMult(boundaryTexCoord(pIndex), tMax);
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// Remember that the top edge is split in half for the 12 o'clock position
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// Let's deal with that here by finding the correct endpoints
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if (i == 0)
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{
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edgePtB = ccpLerp(edgePtA, edgePtB, 0.5f);
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} else
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if (i == 4)
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{
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edgePtA = ccpLerp(edgePtA, edgePtB, 0.5f);
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}
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// s and t are returned by ccpLineIntersect
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float s = 0;
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float t = 0;
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if (ccpLineIntersect(edgePtA, edgePtB, midpoint, percentagePt, &s, &t))
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{
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// Since our hit test is on rays we have to deal with the top edge
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// being in split in half so we have to test as a segment
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if (i == 0 || i == 4)
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{
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// s represents the point between edgePtA--edgePtB
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if (!(0.f <= s && s <= 1.f))
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{
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continue;
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}
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}
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// As long as our t isn't negative we are at least finding a
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// correct hitpoint from midpoint to percentagePt.
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if (t >= 0.f)
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{
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// Because the percentage line and all the texture edges are
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// rays we should only account for the shortest intersection
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if (t < min_t)
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{
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min_t = t;
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index = i;
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}
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}
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}
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}
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// Now that we have the minimum magnitude we can use that to find our intersection
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hit = ccpAdd(midpoint, ccpMult(ccpSub(percentagePt, midpoint),min_t));
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}
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// The size of the vertex data is the index from the hitpoint
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// the 3 is for the midpoint, 12 o'clock point and hitpoint position.
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bool sameIndexCount = true;
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if (m_nVertexDataCount != index + 3)
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{
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sameIndexCount = false;
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if (m_pVertexData)
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{
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delete[] m_pVertexData;
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m_pVertexData = NULL;
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m_nVertexDataCount = 0;
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}
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}
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if (! m_pVertexData)
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{
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m_nVertexDataCount = index + 3;
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m_pVertexData = new ccV2F_C4F_T2F[m_nVertexDataCount];
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assert(m_pVertexData);
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updateColor();
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}
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if (! sameIndexCount)
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{
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// First we populate the array with the midpoint, then all
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// vertices/texcoords/colors of the 12 'o clock start and edges and the hitpoint
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m_pVertexData[0].texCoords = tex2(midpoint.x, midpoint.y);
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m_pVertexData[0].vertices = vertexFromTexCoord(midpoint);
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m_pVertexData[1].texCoords = tex2(midpoint.x, 0.f);
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m_pVertexData[1].vertices = vertexFromTexCoord(ccp(midpoint.x, 0.f));
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for (int i = 0; i < index; ++i)
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{
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CGPoint texCoords = ccpCompMult(boundaryTexCoord(i), tMax);
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m_pVertexData[i+2].texCoords = tex2(texCoords.x, texCoords.y);
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m_pVertexData[i+2].vertices = vertexFromTexCoord(texCoords);
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}
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// Flip the texture coordinates if set
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if (m_pSprite->isFlipX() || m_pSprite->isFlipY())
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{
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for (int i = 0; i < m_nVertexDataCount - 1; ++i)
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{
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if (m_pSprite->isFlipX())
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{
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m_pVertexData[i].texCoords.u = tMax.x - m_pVertexData[i].texCoords.u;
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}
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if (m_pSprite->isFlipY())
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{
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m_pVertexData[i].texCoords.v = tMax.y - m_pVertexData[i].texCoords.v;
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}
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}
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}
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}
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// hitpoint will go last
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m_pVertexData[m_nVertexDataCount - 1].texCoords = tex2(hit.x, hit.y);
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m_pVertexData[m_nVertexDataCount - 1].vertices = vertexFromTexCoord(hit);
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if (m_pSprite->isFlipX() || m_pSprite->isFlipY())
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{
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if (m_pSprite->isFlipX())
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{
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m_pVertexData[m_nVertexDataCount - 1].texCoords.u = tMax.x - m_pVertexData[m_nVertexDataCount - 1].texCoords.u;
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}
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if (m_pSprite->isFlipY())
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{
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m_pVertexData[m_nVertexDataCount - 1].texCoords.v = tMax.y - m_pVertexData[m_nVertexDataCount - 1].texCoords.v;
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}
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}
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}
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///
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// Update does the work of mapping the texture onto the triangles for the bar
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// It now doesn't occur the cost of free/alloc data every update cycle.
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// It also only changes the percentage point but no other points if they have not
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// been modified.
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//
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// It now deals with flipped texture. If you run into this problem, just use the
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// sprite property and enable the methods flipX, flipY.
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///
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void CCProgressTimer::updateBar(void)
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{
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float alpha = m_fPercentage / 100.f;
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CGPoint tMax = ccp(m_pSprite->getTexture()->getMaxS(), m_pSprite->getTexture()->getMaxT());
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unsigned char vIndexes[2] = {0, 0};
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// We know vertex data is always equal to the 4 corners
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// If we don't have vertex data then we create it here and populate
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// the side of the bar vertices that won't ever change.
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if (! m_pVertexData)
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{
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m_nVertexDataCount = kProgressTextureCoordsCount;
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m_pVertexData = new ccV2F_C4F_T2F[m_nVertexDataCount];
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assert(m_pVertexData);
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if (m_eType == kCCProgressTimerTypeHorizontalBarLR)
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{
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m_pVertexData[vIndexes[0] = 0].texCoords = tex2(0, 0);
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m_pVertexData[vIndexes[1] = 1].texCoords = tex2(0, tMax.y);
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} else
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if (m_eType == kCCProgressTimerTypeHorizontalBarRL)
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{
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m_pVertexData[vIndexes[0] = 2].texCoords = tex2(tMax.x, tMax.y);
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m_pVertexData[vIndexes[1] = 3].texCoords = tex2(tMax.x, 0.f);
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} else
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if (m_eType == kCCProgressTimerTypeVerticalBarBT)
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{
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m_pVertexData[vIndexes[0] = 1].texCoords = tex2(0, tMax.y);
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m_pVertexData[vIndexes[1] = 3].texCoords = tex2(tMax.x, tMax.y);
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} else
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if (m_eType == kCCProgressTimerTypeVerticalBarTB)
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{
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m_pVertexData[vIndexes[0] = 0].texCoords = tex2(0, 0);
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m_pVertexData[vIndexes[1] = 2].texCoords = tex2(tMax.x, 0);
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}
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unsigned char index = vIndexes[0];
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m_pVertexData[index].vertices = vertexFromTexCoord(ccp(m_pVertexData[index].texCoords.u,
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m_pVertexData[index].texCoords.v));
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index = vIndexes[1];
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m_pVertexData[index].vertices = vertexFromTexCoord(ccp(m_pVertexData[index].texCoords.u,
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m_pVertexData[index].texCoords.v));
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if (m_pSprite->isFlipY() || m_pSprite->isFlipX())
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{
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if (m_pSprite->isFlipX())
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{
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unsigned char index = vIndexes[0];
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m_pVertexData[index].texCoords.u = tMax.x - m_pVertexData[index].texCoords.u;
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index = vIndexes[1];
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m_pVertexData[index].texCoords.u = tMax.x - m_pVertexData[index].texCoords.u;
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}
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if (m_pSprite->isFlipY())
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{
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unsigned char index = vIndexes[0];
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m_pVertexData[index].texCoords.v = tMax.y - m_pVertexData[index].texCoords.v;
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index = vIndexes[1];
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m_pVertexData[index].texCoords.v = tMax.y - m_pVertexData[index].texCoords.v;
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}
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}
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updateColor();
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}
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if(m_eType == kCCProgressTimerTypeHorizontalBarLR)
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{
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m_pVertexData[vIndexes[0] = 3].texCoords = tex2(tMax.x*alpha, tMax.y);
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m_pVertexData[vIndexes[1] = 2].texCoords = tex2(tMax.x*alpha, 0);
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} else
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if (m_eType == kCCProgressTimerTypeHorizontalBarRL)
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{
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m_pVertexData[vIndexes[0] = 1].texCoords = tex2(tMax.x*(1.f - alpha), 0);
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m_pVertexData[vIndexes[1] = 0].texCoords = tex2(tMax.x*(1.f - alpha), tMax.y);
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} else
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if (m_eType == kCCProgressTimerTypeVerticalBarBT)
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{
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m_pVertexData[vIndexes[0] = 0].texCoords = tex2(0, tMax.y*(1.f - alpha));
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m_pVertexData[vIndexes[1] = 2].texCoords = tex2(tMax.x, tMax.y*(1.f - alpha));
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} else
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if (m_eType == kCCProgressTimerTypeVerticalBarTB)
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{
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m_pVertexData[vIndexes[0] = 1].texCoords = tex2(0, tMax.y*alpha);
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m_pVertexData[vIndexes[1] = 3].texCoords = tex2(tMax.x, tMax.y*alpha);
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}
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unsigned char index = vIndexes[0];
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m_pVertexData[index].vertices = vertexFromTexCoord(ccp(m_pVertexData[index].texCoords.u,
|
|
m_pVertexData[index].texCoords.v));
|
|
index = vIndexes[1];
|
|
m_pVertexData[index].vertices = vertexFromTexCoord(ccp(m_pVertexData[index].texCoords.u,
|
|
m_pVertexData[index].texCoords.v));
|
|
|
|
if (m_pSprite->isFlipY() || m_pSprite->isFlipX())
|
|
{
|
|
if (m_pSprite->isFlipX())
|
|
{
|
|
unsigned char index = vIndexes[0];
|
|
m_pVertexData[index].texCoords.u = tMax.x - m_pVertexData[index].texCoords.u;
|
|
index = vIndexes[1];
|
|
m_pVertexData[index].texCoords.u = tMax.x - m_pVertexData[index].texCoords.u;
|
|
}
|
|
|
|
if (m_pSprite->isFlipY())
|
|
{
|
|
unsigned char index = vIndexes[0];
|
|
m_pVertexData[index].texCoords.v = tMax.y - m_pVertexData[index].texCoords.v;
|
|
index = vIndexes[1];
|
|
m_pVertexData[index].texCoords.v = tMax.y - m_pVertexData[index].texCoords.v;
|
|
}
|
|
}
|
|
}
|
|
|
|
CGPoint CCProgressTimer::boundaryTexCoord(char index)
|
|
{
|
|
if (index < kProgressTextureCoordsCount)
|
|
{
|
|
switch (m_eType)
|
|
{
|
|
case kCCProgressTimerTypeRadialCW:
|
|
return ccp( (float)((kProgressTextureCoords>>((index<<1)+1))&1), (float)((kProgressTextureCoords>>(index<<1))&1) );
|
|
case kCCProgressTimerTypeRadialCCW:
|
|
return ccp( (float)((kProgressTextureCoords>>(7-(index<<1)))&1), (float)((kProgressTextureCoords>>(7-((index<<1)+1)))&1));
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
return CGPointZero;
|
|
}
|
|
|
|
void CCProgressTimer::draw(void)
|
|
{
|
|
if(! m_pVertexData)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if(! m_pSprite)
|
|
{
|
|
return;
|
|
}
|
|
|
|
bool newBlend = false;
|
|
|
|
ccBlendFunc bf = m_pSprite->getBlendFunc();
|
|
if (bf.src != CC_BLEND_SRC || bf.dst != CC_BLEND_DST)
|
|
{
|
|
newBlend = true;
|
|
glBlendFunc(bf.src, bf.dst);
|
|
}
|
|
|
|
/// ========================================================================
|
|
// Replaced [texture_ drawAtPoint:CGPointZero] with my own vertexData
|
|
// Everything above me and below me is copied from CCTextureNode's draw
|
|
glBindTexture(GL_TEXTURE_2D, m_pSprite->getTexture()->getName());
|
|
glVertexPointer(2, GL_FLOAT, sizeof(ccV2F_C4F_T2F), &m_pVertexData[0].vertices);
|
|
glTexCoordPointer(2, GL_FLOAT, sizeof(ccV2F_C4F_T2F), &m_pVertexData[0].texCoords);
|
|
glColorPointer(4, GL_FLOAT, sizeof(ccV2F_C4F_T2F), &m_pVertexData[0].colors);
|
|
|
|
if(m_eType == kCCProgressTimerTypeRadialCCW || m_eType == kCCProgressTimerTypeRadialCW)
|
|
{
|
|
glDrawArrays(GL_TRIANGLE_FAN, 0, m_nVertexDataCount);
|
|
} else
|
|
if ( m_eType == kCCProgressTimerTypeHorizontalBarLR ||
|
|
m_eType == kCCProgressTimerTypeHorizontalBarRL ||
|
|
m_eType == kCCProgressTimerTypeVerticalBarBT ||
|
|
m_eType == kCCProgressTimerTypeVerticalBarTB)
|
|
{
|
|
glDrawArrays(GL_TRIANGLE_STRIP, 0, m_nVertexDataCount);
|
|
}
|
|
//glDrawElements(GL_TRIANGLES, indicesCount_, GL_UNSIGNED_BYTE, indices_);
|
|
/// ========================================================================
|
|
|
|
if( newBlend )
|
|
glBlendFunc(CC_BLEND_SRC, CC_BLEND_DST);
|
|
}
|
|
}
|