mirror of https://github.com/axmolengine/axmol.git
271 lines
8.3 KiB
C++
271 lines
8.3 KiB
C++
/****************************************************************************
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Copyright (c) 2010-2011 cocos2d-x.org
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Copyright (c) 2008-2010 Ricardo Quesada
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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 "CCTileMapAtlas.h"
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#include "CCFileUtils.h"
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#include "CCTextureAtlas.h"
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#include "support/image_support/TGAlib.h"
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#include "ccConfig.h"
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namespace cocos2d {
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// implementation CCTileMapAtlas
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CCTileMapAtlas * CCTileMapAtlas::tileMapAtlasWithTileFile(const char *tile, const char *mapFile, int tileWidth, int tileHeight)
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{
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CCTileMapAtlas *pRet = new CCTileMapAtlas();
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if (pRet->initWithTileFile(tile, mapFile, tileWidth, tileHeight))
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{
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pRet->autorelease();
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return pRet;
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}
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CC_SAFE_DELETE(pRet);
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return NULL;
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}
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bool CCTileMapAtlas::initWithTileFile(const char *tile, const char *mapFile, int tileWidth, int tileHeight)
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{
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this->loadTGAfile(mapFile);
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this->calculateItemsToRender();
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if( CCAtlasNode::initWithTileFile(tile, tileWidth, tileHeight, m_nItemsToRender) )
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{
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m_pPosToAtlasIndex = new StringToIntegerDictionary();
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this->updateAtlasValues();
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this->setContentSize(CCSizeMake((float)(m_pTGAInfo->width*m_nItemWidth),
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(float)(m_pTGAInfo->height*m_nItemHeight)));
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return true;
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}
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return false;
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}
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CCTileMapAtlas::CCTileMapAtlas()
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:m_pPosToAtlasIndex(NULL)
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,m_pTGAInfo(NULL)
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,m_nItemsToRender(0)
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{
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}
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CCTileMapAtlas::~CCTileMapAtlas()
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{
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if (m_pTGAInfo)
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{
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tgaDestroy(m_pTGAInfo);
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}
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if (m_pPosToAtlasIndex)
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{
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m_pPosToAtlasIndex->clear();
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delete m_pPosToAtlasIndex;
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m_pPosToAtlasIndex = NULL;
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}
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}
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void CCTileMapAtlas::releaseMap()
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{
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if (m_pTGAInfo)
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{
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tgaDestroy(m_pTGAInfo);
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}
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m_pTGAInfo = NULL;
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if (m_pPosToAtlasIndex)
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{
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m_pPosToAtlasIndex->clear();
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delete m_pPosToAtlasIndex;
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m_pPosToAtlasIndex = NULL;
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}
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}
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void CCTileMapAtlas::calculateItemsToRender()
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{
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CCAssert( m_pTGAInfo != NULL, "tgaInfo must be non-nil");
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m_nItemsToRender = 0;
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for(int x=0;x < m_pTGAInfo->width; x++ )
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{
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for( int y=0; y < m_pTGAInfo->height; y++ )
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{
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ccColor3B *ptr = (ccColor3B*) m_pTGAInfo->imageData;
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ccColor3B value = ptr[x + y * m_pTGAInfo->width];
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if( value.r )
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{
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++m_nItemsToRender;
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}
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}
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}
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}
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void CCTileMapAtlas::loadTGAfile(const char *file)
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{
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CCAssert( file != NULL, "file must be non-nil");
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// //Find the path of the file
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// NSBundle *mainBndl = [CCDirector sharedDirector].loadingBundle;
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// CCString *resourcePath = [mainBndl resourcePath];
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// CCString * path = [resourcePath stringByAppendingPathComponent:file];
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m_pTGAInfo = tgaLoad( CCFileUtils::fullPathFromRelativePath(file) );
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#if 1
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if( m_pTGAInfo->status != TGA_OK )
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{
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CCAssert(0, "TileMapAtlasLoadTGA : TileMapAtas cannot load TGA file");
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}
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#endif
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}
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// CCTileMapAtlas - Atlas generation / updates
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void CCTileMapAtlas::setTile(ccColor3B tile, ccGridSize position)
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{
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CCAssert( m_pTGAInfo != NULL, "tgaInfo must not be nil");
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CCAssert( m_pPosToAtlasIndex != NULL, "posToAtlasIndex must not be nil");
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CCAssert( position.x < m_pTGAInfo->width, "Invalid position.x");
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CCAssert( position.y < m_pTGAInfo->height, "Invalid position.x");
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CCAssert( tile.r != 0, "R component must be non 0");
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ccColor3B *ptr = (ccColor3B*)m_pTGAInfo->imageData;
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ccColor3B value = ptr[position.x + position.y * m_pTGAInfo->width];
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if( value.r == 0 )
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{
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CCLOG("cocos2d: Value.r must be non 0.");
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}
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else
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{
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ptr[position.x + position.y * m_pTGAInfo->width] = tile;
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// XXX: this method consumes a lot of memory
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// XXX: a tree of something like that shall be impolemented
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char buffer[32];
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/*std::string key = itoa(position.x, buffer, 10);*/
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sprintf(buffer, "%d", position.x);
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std::string key = buffer;
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key += ",";
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/*key += itoa(position.y, buffer, 10);*/
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sprintf(buffer, "%d", position.y);
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key += buffer;
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int num = m_pPosToAtlasIndex->find(key)->second;
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this->updateAtlasValueAt(position, tile, num);
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}
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}
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ccColor3B CCTileMapAtlas::tileAt(ccGridSize position)
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{
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CCAssert( m_pTGAInfo != NULL, "tgaInfo must not be nil");
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CCAssert( position.x < m_pTGAInfo->width, "Invalid position.x");
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CCAssert( position.y < m_pTGAInfo->height, "Invalid position.y");
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ccColor3B *ptr = (ccColor3B*)m_pTGAInfo->imageData;
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ccColor3B value = ptr[position.x + position.y * m_pTGAInfo->width];
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return value;
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}
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void CCTileMapAtlas::updateAtlasValueAt(ccGridSize pos, ccColor3B value, int index)
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{
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ccV3F_C4B_T2F_Quad quad;
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int x = pos.x;
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int y = pos.y;
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float row = (float) (value.r % m_nItemsPerRow);
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float col = (float) (value.r / m_nItemsPerRow);
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float textureWide = (float) (m_pTextureAtlas->getTexture()->getPixelsWide());
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float textureHigh = (float) (m_pTextureAtlas->getTexture()->getPixelsHigh());
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#if CC_FIX_ARTIFACTS_BY_STRECHING_TEXEL
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float left = (2 * row * m_nItemWidth + 1) / (2 * textureWide);
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float right = left + (m_nItemWidth * 2 - 2) / (2 * textureWide);
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float top = (2 * col * m_nItemHeight + 1) / (2 * textureHigh);
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float bottom = top + (m_nItemHeight * 2 - 2) / (2 * textureHigh);
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#else
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float left = (row * m_nItemWidth) / textureWide;
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float right = left + m_nItemWidth / textureWide;
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float top = (col * m_nItemHeight) / textureHigh;
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float bottom = top + m_nItemHeight / textureHigh;
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#endif
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quad.tl.texCoords.u = left;
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quad.tl.texCoords.v = top;
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quad.tr.texCoords.u = right;
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quad.tr.texCoords.v = top;
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quad.bl.texCoords.u = left;
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quad.bl.texCoords.v = bottom;
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quad.br.texCoords.u = right;
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quad.br.texCoords.v = bottom;
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quad.bl.vertices.x = (float) (x * m_nItemWidth);
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quad.bl.vertices.y = (float) (y * m_nItemHeight);
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quad.bl.vertices.z = 0.0f;
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quad.br.vertices.x = (float)(x * m_nItemWidth + m_nItemWidth);
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quad.br.vertices.y = (float)(y * m_nItemHeight);
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quad.br.vertices.z = 0.0f;
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quad.tl.vertices.x = (float)(x * m_nItemWidth);
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quad.tl.vertices.y = (float)(y * m_nItemHeight + m_nItemHeight);
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quad.tl.vertices.z = 0.0f;
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quad.tr.vertices.x = (float)(x * m_nItemWidth + m_nItemWidth);
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quad.tr.vertices.y = (float)(y * m_nItemHeight + m_nItemHeight);
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quad.tr.vertices.z = 0.0f;
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m_pTextureAtlas->updateQuad(&quad, index);
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}
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void CCTileMapAtlas::updateAtlasValues()
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{
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CCAssert( m_pTGAInfo != NULL, "tgaInfo must be non-nil");
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int total = 0;
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for(int x=0;x < m_pTGAInfo->width; x++ )
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{
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for( int y=0; y < m_pTGAInfo->height; y++ )
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{
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if( total < m_nItemsToRender )
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{
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ccColor3B *ptr = (ccColor3B*) m_pTGAInfo->imageData;
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ccColor3B value = ptr[x + y * m_pTGAInfo->width];
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if( value.r != 0 )
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{
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this->updateAtlasValueAt(ccg(x,y), value, total);
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char buffer[32];
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/*std::string key = itoa(x, buffer, 10);*/
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sprintf(buffer, "%d", x);
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std::string key = buffer;
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key += ",";
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/*key += itoa(y, buffer, 10);*/
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sprintf(buffer, "%d", y);
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key += buffer;
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m_pPosToAtlasIndex->insert(StringToIntegerPair(key, total));
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total++;
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}
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}
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}
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}
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}
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void CCTileMapAtlas::setTGAInfo(struct sImageTGA* var)
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{
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m_pTGAInfo = var;
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}
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struct sImageTGA * CCTileMapAtlas::getTGAInfo()
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{
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return m_pTGAInfo;
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}
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} // namespace cocos2d
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