367 lines
10 KiB
C++
367 lines
10 KiB
C++
/****************************************************************************
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Copyright (c) 2011-2013,WebJet Business Division,CYOU
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http://www.genesis-3d.com.cn
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#if __USE_PHYSX__ || __GENESIS_EDITOR__
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#include "stdneb.h"
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#include "appframework/actor.h"
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#include "PhysicsMeshShape.h"
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#include "PhysicsConvexShape.h"
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#include "graphicfeature/components/meshrendercomponent.h"
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#include "graphicfeature/graphicsfeatureprotocol.h"
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#include "resource/resourcemanager.h"
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#include "util/array.h"
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#include "PhysicsServer.h"
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#include "PxPhysics.h"
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#include "PxCooking.h"
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#include "PxTriangleMesh.h"
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#include "PxTriangleMeshGeometry.h"
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#include "PxShape.h"
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#include "PhysicsUtil.h"
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#include "UserStream.h"
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#include "physXfeature/PhysicsBodyComponent.h"
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using namespace physx;
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namespace App
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{
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__ImplementClass(App::PhysicsMeshShape, 'PYMS', App::PhysicsShape);
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using namespace Resources;
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PhysicsMeshShape::PhysicsMeshShape()
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: m_Scale(1.0f, 1.0f, 1.0f)
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, m_RightScale(1.0f, 1.0f, 1.0f)
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, m_ActorScale(1.f,1.f,1.f)
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, m_UseActorMesh(true)
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, m_MeshFileName("sys:box.mesh")
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{
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m_ShapeType = MESHSHAPE;
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}
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PhysicsMeshShape::~PhysicsMeshShape()
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{
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OnDestory();
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}
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bool PhysicsMeshShape::OnCreate(GPtr<PhysicsBodyComponent> component)
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{
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if (component.isvalid() && component->GetActor())
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{
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const Math::vector& _scale = component->GetActor()->GetWorldScale();
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m_ActorScale = Math::float3(_scale.x(),_scale.y(),_scale.z());
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return CreateShape(component);
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}
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return false;
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}
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//------------------------------------------------------------------------
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bool PhysicsMeshShape::CreateShape(GPtr<PhysicsBodyComponent> component)
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{
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Math::float3* pPosData = NULL;
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SizeT nVertexCount = 0;
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uint* pIndex32 = NULL;
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ushort* pIndex16 = NULL;
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SizeT indexCount = 0;
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SizeT triCount = 0;
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GPtr<MeshRes> physXMeshRes(NULL);
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if (m_UseActorMesh && component.isvalid())
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{
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GPtr<Component> comObject = component->GetActor()->FindComponent( MeshRenderComponent::RTTI );
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if (!comObject.isvalid() )
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{
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n_warning("MeshRenderComponent is not exist when create phyx mesh collider, changed to default!");
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m_UseActorMesh = false;
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return CreateShape(component);// Create a default shape
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}
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GPtr<MeshRenderComponent> pMeshComponent = comObject.downcast<MeshRenderComponent>();
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const GPtr<MeshRes>& meshRes = pMeshComponent->GetMesh();
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m_MeshFileName = pMeshComponent->GetMeshID().AsString();
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if(!meshRes.isvalid())
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{
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n_warning("meshRes is empty when create phyx mesh collider, changed to default!");
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m_UseActorMesh = false;
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return CreateShape(component);// Create a default shape
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}
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else if (meshRes->GetState() != Resource::Loaded)
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{
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CreatePhysicsMeshFromFile(m_MeshFileName);
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}
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pPosData = meshRes->GetVertexData<PositionData>();
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nVertexCount = meshRes->GetVertexCount();
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indexCount = meshRes->GetIndexCount();
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triCount = indexCount / 3;
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physXMeshRes = meshRes;
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}
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else
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{
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if (m_MeshFileName=="")
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{
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m_MeshFileName = "sys:box.mesh";
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}
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GPtr<Resources::PrimitiveResInfo> primitiveResInfo=CreatePhysicsMeshFromFile(m_MeshFileName);
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if ( !(primitiveResInfo->GetRes().downcast<Resources::MeshRes>()->GetState() == Resource::Loaded) )
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{
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n_warning("Create Shape failed. Read meshRes from file faile when create phyx mesh collider");
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return false;
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}
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pPosData = primitiveResInfo->GetRes().downcast<Resources::MeshRes>()->GetVertexData<PositionData>();
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nVertexCount = primitiveResInfo->GetRes().downcast<Resources::MeshRes>()->GetVertexCount();
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indexCount = primitiveResInfo->GetRes().downcast<Resources::MeshRes>()->GetIndexCount();
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triCount = indexCount / 3;
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physXMeshRes = primitiveResInfo->GetRes().downcast<Resources::MeshRes>();
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}
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if (indexCount > 65535)
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{
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pIndex32 = physXMeshRes->GetIndex32();
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n_assert(pIndex32);
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}
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else
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{
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pIndex16 = physXMeshRes->GetIndex16();
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n_assert(pIndex16);
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}
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PxTriangleMesh* _pPxMesh = CreatePxMesh(pPosData, nVertexCount, indexCount, pIndex32, pIndex16);
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if ( _pPxMesh )
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{
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Math::float3 _realScale = _GetRealScale();
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m_pGeometry = new PxTriangleMeshGeometry(_pPxMesh, PxMeshScale((PxVec3&)_realScale, PxQuat(0.f,0.f,0.f,1.f)));
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if ( ((PxTriangleMeshGeometry*)m_pGeometry)->isValid() )
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{
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m_RightScale = _realScale;
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}
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else
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{
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n_warning("Could not generate triangle mesh, reset to last operation \n");
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((PxTriangleMeshGeometry*)m_pGeometry)->scale.scale = Float3ToPxVec(m_RightScale);
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}
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}
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else
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{
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return false;
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}
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return true;
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}
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PxTriangleMesh* PhysicsMeshShape::CreatePxMesh( Math::float3* pData, SizeT nVertexCount, SizeT nIndexCount, uint* pIndex32, ushort* pIndex16 )
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{
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Util::Array<Math::float3> cookedPosData;
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cookedPosData.Reserve(nVertexCount);
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n_assert(pData);
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for (IndexT i = 0; i<nVertexCount; ++i)
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{
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Math::float3 pos( pData[i].x(), pData[i].y(), pData[i].z());
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cookedPosData.Append(pos);
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}
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PxTriangleMeshDesc triMeshDesc;
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triMeshDesc.points.count = nVertexCount;
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triMeshDesc.points.stride = sizeof(Math::float3);
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triMeshDesc.points.data = &cookedPosData[0];
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triMeshDesc.triangles.count = nIndexCount/3;
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if (nIndexCount > 65535)
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{
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triMeshDesc.triangles.data = pIndex32;
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triMeshDesc.triangles.stride = 3*sizeof(uint);
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}
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else
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{
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triMeshDesc.triangles.data = pIndex16;
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triMeshDesc.triangles.stride = 3*sizeof(ushort);
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triMeshDesc.flags |= PxMeshFlag::e16_BIT_INDICES;
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}
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if ( !triMeshDesc.isValid() )
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{
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return NULL;
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}
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PxCooking* pCooking = PhysicsServer::Instance()->GetCookingInterface();
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MemoryOutputStream buf;
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bool ret = true;
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try
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{
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ret = pCooking->cookTriangleMesh(triMeshDesc, buf);
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}
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catch (...)
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{
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ret = false;
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}
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if (ret)
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{
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MemoryInputData input(buf.getData(),buf.getSize());
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return PhysicsServer::Instance()->GetPhysics()->createTriangleMesh(input);
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}
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return false;
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}
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//------------------------------------------------------------------------
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GPtr<Resources::PrimitiveResInfo> PhysicsMeshShape::CreatePhysicsMeshFromFile(const Util::String &fileName)
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{
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if (! fileName.IsEmpty() )
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{
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return ResourceManager::Instance()->CreatePrimitiveInfo(fileName, 0);
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}
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return NULL;
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}
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//------------------------------------------------------------------------
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void PhysicsMeshShape::SetMeshFileName(const Util::String& strName)
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{
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if (m_MeshFileName==strName)
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{
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return;
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}
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m_UseActorMesh = false;
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m_MeshFileName = strName;
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if (m_pGeometry)
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{
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delete m_pGeometry;
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m_pGeometry = NULL;
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}
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CreateShape(NULL);
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if (m_pShape)
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{
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if (m_pGeometry && m_pShape->getGeometryType() == m_pGeometry->getType())
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{
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m_pShape->setGeometry(*m_pGeometry);
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}
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else
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{
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ReleasePxShape();
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if(m_pEntity != NULL)
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m_pEntity->UpdateEntityMass();
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}
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}
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else
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{
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if(m_pEntity != NULL)
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m_pEntity->OnShapeReBuild(this);
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}
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}
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//------------------------------------------------------------------------
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bool PhysicsMeshShape::CopyFrom( const GPtr<PhysicsShape>& pShape )
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{
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if ( !pShape.isvalid() )
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{
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return false;
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}
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Super::CopyFrom(pShape);
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if ( pShape->GetType() == m_ShapeType )
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{
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SetScale(pShape.downcast<PhysicsMeshShape>()->m_Scale);
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SetMeshFileName(pShape.downcast<PhysicsMeshShape>()->m_MeshFileName);
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}
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else if (pShape->GetType() == CONVEXSHAPE)
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{
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SetScale(pShape.downcast<PhysicsConvexShape>()->GetScale());
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SetMeshFileName(pShape.downcast<PhysicsConvexShape>()->GetMeshFileName());
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}
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return true;
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}
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Math::float3 PhysicsMeshShape::_GetRealScale()
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{
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if (Math::n_nearequal(m_ActorScale.x(), 0.0f, MinPrecision))
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{
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m_ActorScale.x()= 0.0f;
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}
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if (Math::n_nearequal(m_ActorScale.y(), 0.0f, MinPrecision))
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{
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m_ActorScale.y() = 0.0f;
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}
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if (Math::n_nearequal(m_ActorScale.z(), 0.0f, MinPrecision))
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{
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m_ActorScale.z()= 0.0f;
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}
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Math::float3 scale = m_ActorScale * m_Scale;
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scale.set(Math::n_abs(scale.x()), Math::n_abs(scale.y()), Math::n_abs(scale.z()));
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scale.x() = Math::n_nearequal(scale.x(), 0.0f, MinPrecision)? MinPrecision:scale.x();
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scale.y() = Math::n_nearequal(scale.y(), 0.0f, MinPrecision)? MinPrecision:scale.y();
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scale.z() = Math::n_nearequal(scale.z(), 0.0f, MinPrecision)? MinPrecision:scale.z();
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if ( scale.x() > 10000.f)
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{
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scale.x() = 10000.f;
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}
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if ( scale.y() > 10000.f)
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{
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scale.y() = 10000.f;
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}
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if ( scale.z() > 10000.f)
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{
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scale.z() = 10000.f;
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}
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return scale;
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}
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void PhysicsMeshShape::Save( AppWriter* pSerialize )
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{
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Super::Save(pSerialize);
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pSerialize->SerializeBool("UseActorMesh", m_UseActorMesh);
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pSerialize->SerializeFloat3("Scale", m_Scale);
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pSerialize->SerializeString("MeshFileName", m_MeshFileName);
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}
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void PhysicsMeshShape::Load( Version ver, AppReader* pReader )
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{
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Super::Load(ver,pReader);
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pReader->SerializeBool("UseActorMesh", m_UseActorMesh);
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pReader->SerializeFloat3("Scale", m_Scale);
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pReader->SerializeString("MeshFileName", m_MeshFileName);
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}
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void PhysicsMeshShape::SetScaleDo( Math::float3 scale )
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{
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if ( m_pGeometry )
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{
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((PxTriangleMeshGeometry*)m_pGeometry)->scale.scale = Float3ToPxVec(scale);
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if ( m_pShape && m_pShape->getGeometryType() == m_pGeometry->getType() )
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{
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m_pShape->setGeometry(*m_pGeometry);
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}
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}
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}
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bool PhysicsMeshShape::IsGeometryValid()
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{
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return IsValid() && ((PxTriangleMeshGeometry*)m_pGeometry)->isValid();
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}
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}
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#endif
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