00001 // This code contains NVIDIA Confidential Information and is disclosed to you 00002 // under a form of NVIDIA software license agreement provided separately to you. 00003 // 00004 // Notice 00005 // NVIDIA Corporation and its licensors retain all intellectual property and 00006 // proprietary rights in and to this software and related documentation and 00007 // any modifications thereto. Any use, reproduction, disclosure, or 00008 // distribution of this software and related documentation without an express 00009 // license agreement from NVIDIA Corporation is strictly prohibited. 00010 // 00011 // ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES 00012 // NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO 00013 // THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT, 00014 // MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE. 00015 // 00016 // Information and code furnished is believed to be accurate and reliable. 00017 // However, NVIDIA Corporation assumes no responsibility for the consequences of use of such 00018 // information or for any infringement of patents or other rights of third parties that may 00019 // result from its use. No license is granted by implication or otherwise under any patent 00020 // or patent rights of NVIDIA Corporation. Details are subject to change without notice. 00021 // This code supersedes and replaces all information previously supplied. 00022 // NVIDIA Corporation products are not authorized for use as critical 00023 // components in life support devices or systems without express written approval of 00024 // NVIDIA Corporation. 00025 // 00026 // Copyright (c) 2008-2017 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