PxHairSystemDesc.h

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#ifndef PX_HAIRSYSTEM_DESC_H
#define PX_HAIRSYSTEM_DESC_H
#include "foundation/PxFlags.h"
#include "common/PxCoreUtilityTypes.h"
 
#if PX_ENABLE_FEATURES_UNDER_CONSTRUCTION
 
#if !PX_DOXYGEN
namespace physx
{
#endif
 
    struct PxHairSystemDescFlag
    {
        enum Enum
        {
            eDEVICE_MEMORY = (1<<0)
        };
    };
 
    typedef PxFlags<PxHairSystemDescFlag::Enum, PxU16> PxHairSystemDescFlags;
    PX_FLAGS_OPERATORS(PxHairSystemDescFlag::Enum, PxU16)
 
    
    class PxHairSystemDesc
    {
    public:
        PxU32 numStrands;
 
        PxReal segmentLength;
 
        PxReal segmentRadius;
 
        PxBoundedData numVerticesPerStrand;
 
        PxBoundedData vertices;
 
        PxBoundedData velocities;
 
        PxHairSystemDescFlags flags;
 
        PX_INLINE PxHairSystemDesc();
 
        PX_INLINE void setToDefault();
 
        PX_INLINE bool isValid() const;
    };
 
    PX_INLINE PxHairSystemDesc::PxHairSystemDesc()
    {
        numStrands = 0;
        segmentLength = 0.1f;
        segmentRadius = 0.01f;
    }
 
    PX_INLINE void PxHairSystemDesc::setToDefault()
    {
        *this = PxHairSystemDesc();
    }
 
    PX_INLINE bool PxHairSystemDesc::isValid() const
    {
        if (segmentLength < 0.0f || segmentRadius < 0.0f)
            return false;
 
        if (2.0f * segmentRadius >= segmentLength)
            return false;
 
        if (numStrands == 0)
            return false;
 
        if (numVerticesPerStrand.count != numStrands)
            return false;
 
        PxU32 totalNumVertices = 0;
        for (PxU32 i = 0; i < numVerticesPerStrand.count; i++)
        {
            const PxU32 numVertices = numVerticesPerStrand.at<PxU32>(i);
            totalNumVertices += numVertices;
            if (numVertices < 2)
            {
                return false;
            }
        }
 
        if (vertices.count != totalNumVertices && vertices.count != numStrands)
            return false;
 
        if (velocities.count != totalNumVertices && velocities.count != 0)
            return false;
 
        return true;
    }
 
#if !PX_DOXYGEN
} // namespace physx
#endif
 
#endif
 
#endif