mirror of https://github.com/axmolengine/axmol.git
109 lines
4.1 KiB
C++
109 lines
4.1 KiB
C++
/****************************************************************************
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Copyright (c) 2008-2010 Ricardo Quesada
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Copyright (c) 2010-2012 cocos2d-x.org
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Copyright (c) 2011 Zynga Inc.
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Copyright (c) 2013-2014 Chukong Technologies Inc.
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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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#ifndef COCOS_2D_CCAUTOPOLYGON_H__
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#define COCOS_2D_CCAUTOPOLYGON_H__
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#include <string>
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#include <vector>
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#include "platform/CCImage.h"
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#include "renderer/CCTrianglesCommand.h"
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NS_CC_BEGIN
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class CC_DLL PolygonInfo
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{
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public:
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PolygonInfo():
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triangles(),
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isVertsOwner(true),
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rect()
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{
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};
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PolygonInfo(const PolygonInfo& other);
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PolygonInfo(V3F_C4B_T2F_Quad *quad);
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PolygonInfo& operator= (const PolygonInfo &other);
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~PolygonInfo();
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Rect rect;
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std::string filename;
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TrianglesCommand::Triangles triangles;
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const unsigned int getVertCount() const;
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const float getArea() const;
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protected:
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bool isVertsOwner;
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};
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class CC_DLL AutoPolygon
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{
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public:
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AutoPolygon(const std::string &filename);
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AutoPolygon();
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~AutoPolygon();
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//using Ramer–Douglas–Peucker algorithm
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std::vector<Vec2> trace(const cocos2d::Rect& rect, const float& threshold = 0.0);
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std::vector<Vec2> reduce(const std::vector<Vec2>& points, const Rect& rect, const float& epsilon = 2.0);
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std::vector<Vec2> expand(const std::vector<Vec2>& points, const Rect& rect, const float& epsilon);
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TrianglesCommand::Triangles triangulate(const std::vector<Vec2>& points);
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void calculateUV(const Rect& rect, V3F_C4B_T2F* verts, const ssize_t& count);
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PolygonInfo generateTriangles(const Rect& rect = Rect::ZERO, const float& epsilon = 2.0, const float& threshold = 0.05);
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static PolygonInfo generatePolygon(const std::string& filename, const Rect& rect = Rect::ZERO, const float epsilon = 2.0, const float threshold = 0.05);
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protected:
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Vec2 findFirstNoneTransparentPixel(const Rect& rect, const float& threshold);
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std::vector<cocos2d::Vec2> marchSquare(const Rect& rect, const Vec2& first, const float& threshold);
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unsigned int getSquareValue(const unsigned int& x, const unsigned int& y, const Rect& rect, const float& threshold);
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unsigned char getAlphaByIndex(const unsigned int& i);
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unsigned char getAlphaByPos(const Vec2& i);
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int getIndexFromPos(const unsigned int& x, const unsigned int& y){return y*_width+x;};
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cocos2d::Vec2 getPosFromIndex(const unsigned int& i){return cocos2d::Vec2(i%_width, i/_width);};
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std::vector<cocos2d::Vec2> rdp(std::vector<cocos2d::Vec2> v, const float& optimization);
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float perpendicularDistance(const cocos2d::Vec2& i, const cocos2d::Vec2& start, const cocos2d::Vec2& end);
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bool isAConvexPoint(const cocos2d::Vec2& p1, const cocos2d::Vec2& p2);
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//real rect is the size that is in scale with the texture file
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Rect getRealRect(const Rect& rect);
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Image* _image;
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unsigned char * _data;
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std::string _filename;
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unsigned int _width;
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unsigned int _height;
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float _scaleFactor;
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unsigned int _threshold;
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};
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NS_CC_END
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#endif // #ifndef COCOS_2D_CCAUTOPOLYGON_H__
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