00001 // 00002 // Redistribution and use in source and binary forms, with or without 00003 // modification, are permitted provided that the following conditions 00004 // are met: 00005 // * Redistributions of source code must retain the above copyright 00006 // notice, this list of conditions and the following disclaimer. 00007 // * Redistributions in binary form must reproduce the above copyright 00008 // notice, this list of conditions and the following disclaimer in the 00009 // documentation and/or other materials provided with the distribution. 00010 // * Neither the name of NVIDIA CORPORATION nor the names of its 00011 // contributors may be used to endorse or promote products derived 00012 // from this software without specific prior written permission. 00013 // 00014 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY 00015 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00016 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 00017 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 00018 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00019 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 00020 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00021 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 00022 // OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00023 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 00024 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00025 // 00026 // Copyright (c) 2008-2018 NVIDIA Corporation. All rights reserved. 00027 // Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved. 00028 // Copyright (c) 2001-2004 NovodeX AG. All rights reserved. 00029 00030 #ifndef PX_VEHICLE_TIREFRICTION_H 00031 #define PX_VEHICLE_TIREFRICTION_H 00032 00036 #include "foundation/PxSimpleTypes.h" 00037 00038 #if !PX_DOXYGEN 00039 namespace physx 00040 { 00041 #endif 00042 00043 class PxMaterial; 00044 00049 struct PxVehicleDrivableSurfaceType 00050 { 00051 enum 00052 { 00053 eSURFACE_TYPE_UNKNOWN=0xffffffff 00054 }; 00055 PxU32 mType; 00056 }; 00057 00062 class PxVehicleDrivableSurfaceToTireFrictionPairs 00063 { 00064 public: 00065 00066 friend class VehicleSurfaceTypeHashTable; 00067 00068 enum 00069 { 00070 eMAX_NB_SURFACE_TYPES=256 00071 }; 00072 00084 static PxVehicleDrivableSurfaceToTireFrictionPairs* allocate 00085 (const PxU32 maxNbTireTypes, const PxU32 maxNbSurfaceTypes); 00086 00101 void setup 00102 (const PxU32 nbTireTypes, const PxU32 nbSurfaceTypes, 00103 const PxMaterial** drivableSurfaceMaterials, const PxVehicleDrivableSurfaceType* drivableSurfaceTypes); 00104 00108 void release(); 00109 00117 void setTypePairFriction(const PxU32 surfaceType, const PxU32 tireType, const PxReal value); 00118 00126 PxReal getTypePairFriction(const PxU32 surfaceType, const PxU32 tireType) const; 00127 00133 PxU32 getMaxNbSurfaceTypes() const {return mMaxNbSurfaceTypes;} 00134 00140 PxU32 getMaxNbTireTypes() const {return mMaxNbTireTypes;} 00141 00142 private: 00143 00150 PxReal* mPairs; 00151 00162 const PxMaterial** mDrivableSurfaceMaterials; 00163 00174 PxVehicleDrivableSurfaceType* mDrivableSurfaceTypes; 00175 00183 PxU32 mNbSurfaceTypes; 00184 00190 PxU32 mMaxNbSurfaceTypes; 00191 00197 PxU32 mNbTireTypes; 00198 00204 PxU32 mMaxNbTireTypes; 00205 00206 00207 #if !PX_P64_FAMILY 00208 PxU32 mPad[1]; 00209 #else 00210 PxU32 mPad[2]; 00211 #endif 00212 00213 PxVehicleDrivableSurfaceToTireFrictionPairs(){} 00214 ~PxVehicleDrivableSurfaceToTireFrictionPairs(){} 00215 }; 00216 PX_COMPILE_TIME_ASSERT(0==(sizeof(PxVehicleDrivableSurfaceToTireFrictionPairs) & 15)); 00217 00218 #if !PX_DOXYGEN 00219 } // namespace physx 00220 #endif 00221 00223 #endif //PX_VEHICLE_TIREFRICTION_H