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//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of NVIDIA CORPORATION nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (c) 2018 NVIDIA Corporation. All rights reserved.
#ifndef __DESTRUCTIBLEHELPERS_H__
#define __DESTRUCTIBLEHELPERS_H__
#include "Apex.h"
#include "ApexSDKHelpers.h"
#include "PsUserAllocated.h"
#include "PsMemoryBuffer.h"
#include "DestructibleAsset.h"
#include "NxPhysicsSDK.h"
/*
For managing mesh cooking at various scales
*/
namespace nvidia
{
namespace destructible
{
class ConvexHullAtScale
{
public:
ConvexHullAtScale() : scale(1), convexMesh(NULL) {}
ConvexHullAtScale(const PxVec3& inScale) : scale(inScale), convexMesh(NULL) {}
PxVec3 scale;
PxConvexMesh* convexMesh;
physx::Array<uint8_t> cookedHullData;
};
class MultiScaledConvexHull : public UserAllocated
{
public:
ConvexHullAtScale* getConvexHullAtScale(const PxVec3& scale, float tolerance = 0.0001f)
{
// Find mesh at scale. If not found, create one.
for (uint32_t index = 0; index < meshes.size(); ++index)
{
if (PxVec3equals(meshes[index].scale, scale, tolerance))
{
return &meshes[index];
}
}
meshes.insert();
return new(&meshes.back()) ConvexHullAtScale(scale);
}
void releaseConvexMeshes()
{
for (uint32_t index = 0; index < meshes.size(); ++index)
{
if (meshes[index].convexMesh != NULL)
{
GetApexSDK()->getPhysXSDK()->releaseConvexMesh(*meshes[index].convexMesh);
meshes[index].convexMesh = NULL;
}
}
}
Array<ConvexHullAtScale> meshes;
};
}
} // end namespace nvidia
#endif // __DESTRUCTIBLEHELPERS_H__
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