00001 /* 00002 ----------------------------------------------------------------------------- 00003 This source file is part of OGRE 00004 (Object-oriented Graphics Rendering Engine) 00005 For the latest info, see http://www.ogre3d.org/ 00006 00007 Copyright (c) 2000-2011 Torus Knot Software Ltd 00008 00009 Permission is hereby granted, free of charge, to any person obtaining a copy 00010 of this software and associated documentation files (the "Software"), to deal 00011 in the Software without restriction, including without limitation the rights 00012 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 00013 copies of the Software, and to permit persons to whom the Software is 00014 furnished to do so, subject to the following conditions: 00015 00016 The above copyright notice and this permission notice shall be included in 00017 all copies or substantial portions of the Software. 00018 00019 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 00020 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00021 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 00022 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 00023 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00024 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 00025 THE SOFTWARE. 00026 ----------------------------------------------------------------------------- 00027 */ 00028 00029 #ifndef __Ogre_Grid2DPageStrategy_H__ 00030 #define __Ogre_Grid2DPageStrategy_H__ 00031 00032 #include "OgrePagingPrerequisites.h" 00033 #include "OgrePageStrategy.h" 00034 #include "OgreVector2.h" 00035 #include "OgreVector3.h" 00036 #include "OgreQuaternion.h" 00037 00038 namespace Ogre 00039 { 00047 00048 00050 enum Grid2DMode 00051 { 00053 G2D_X_Z = 0, 00055 G2D_X_Y = 1, 00057 G2D_Y_Z = 2 00058 }; 00119 class _OgrePagingExport Grid2DPageStrategyData : public PageStrategyData 00120 { 00121 protected: 00123 Grid2DMode mMode; 00125 Vector3 mWorldOrigin; 00127 Vector2 mOrigin; 00129 Real mCellSize; 00131 Real mLoadRadius; 00133 Real mHoldRadius; 00134 Real mLoadRadiusInCells; 00135 Real mHoldRadiusInCells; 00136 int32 mMinCellX; 00137 int32 mMinCellY; 00138 int32 mMaxCellX; 00139 int32 mMaxCellY; 00140 00141 void updateDerivedMetrics(); 00142 00143 public: 00144 static const uint32 CHUNK_ID; 00145 static const uint16 CHUNK_VERSION; 00146 00147 Grid2DPageStrategyData(); 00148 ~Grid2DPageStrategyData(); 00149 00151 virtual void setMode(Grid2DMode mode); 00152 00154 virtual Grid2DMode getMode() const { return mMode; } 00155 00157 virtual void setOrigin(const Vector3& worldOrigin); 00159 virtual const Vector3& getOrigin(const Vector3& worldOrigin) { return mWorldOrigin; } 00161 virtual void setCellSize(Real sz); 00163 virtual Real getCellSize() const { return mCellSize; } 00165 virtual void setLoadRadius(Real sz); 00167 virtual Real getLoadRadius() const { return mLoadRadius; } 00169 virtual void setHoldRadius(Real sz); 00171 virtual Real getHoldRadius() const { return mHoldRadius; } 00173 virtual Real getLoadRadiusInCells() { return mLoadRadiusInCells; } 00175 virtual Real getHoldRadiusInCells(){ return mHoldRadiusInCells; } 00176 00178 virtual void setCellRange(int32 minX, int32 minY, int32 maxX, int32 maxY); 00180 virtual void setCellRangeMinX(int32 minX); 00182 virtual void setCellRangeMinY(int32 minY); 00184 virtual void setCellRangeMaxX(int32 maxX); 00186 virtual void setCellRangeMaxY(int32 maxY); 00188 virtual int32 getCellRangeMinX() const { return mMinCellX; } 00190 virtual int32 getCellRangeMinY() const { return mMinCellY; } 00192 virtual int32 getCellRangeMaxX() const { return mMaxCellX; } 00194 virtual int32 getCellRangeMaxY() const { return mMaxCellY; } 00195 00197 bool load(StreamSerialiser& stream); 00199 void save(StreamSerialiser& stream); 00200 00202 virtual void convertWorldToGridSpace(const Vector3& world, Vector2& grid); 00204 virtual void convertGridToWorldSpace(const Vector2& grid, Vector3& world); 00206 virtual void getMidPointGridSpace(int32 x, int32 y, Vector2& mid); 00208 virtual void getBottomLeftGridSpace(int32 x, int32 y, Vector2& bl); 00213 virtual void getCornersGridSpace(int32 x, int32 y, Vector2* pFourPoints); 00214 00216 void determineGridLocation(const Vector2& gridpos, int32* x, int32* y); 00217 00218 PageID calculatePageID(int32 x, int32 y); 00219 void calculateCell(PageID inPageID, int32* x, int32* y); 00220 00221 }; 00222 00223 00230 class _OgrePagingExport Grid2DPageStrategy : public PageStrategy 00231 { 00232 public: 00233 Grid2DPageStrategy(PageManager* manager); 00234 00235 ~Grid2DPageStrategy(); 00236 00237 // Overridden members 00238 void notifyCamera(Camera* cam, PagedWorldSection* section); 00239 PageStrategyData* createData(); 00240 void destroyData(PageStrategyData* d); 00241 void updateDebugDisplay(Page* p, SceneNode* sn); 00242 PageID getPageID(const Vector3& worldPos, PagedWorldSection* section); 00243 }; 00244 00247 } 00248 00249 #endif
Copyright © 2008 Torus Knot Software Ltd
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
Last modified Sat Jan 14 2012 18:40:43