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cleanup ShapeFactory implementation

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This commit is contained in:
Andrew Meadows 2017-10-27 08:56:26 -07:00
parent d45febf1db
commit 137fccbd91
2 changed files with 35 additions and 44 deletions
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63
libraries/physics/src/ShapeFactory.cpp
View file

@ -16,6 +16,40 @@
#include "ShapeFactory.h"
#include "BulletUtil.h"
class StaticMeshShape : public btBvhTriangleMeshShape {
public:
StaticMeshShape() = delete;
StaticMeshShape(btTriangleIndexVertexArray* dataArray)
: btBvhTriangleMeshShape(dataArray, true), _dataArray(dataArray) {
assert(_dataArray);
}
~StaticMeshShape() {
assert(_dataArray);
IndexedMeshArray& meshes = _dataArray->getIndexedMeshArray();
for (int32_t i = 0; i < meshes.size(); ++i) {
btIndexedMesh mesh = meshes[i];
mesh.m_numTriangles = 0;
delete [] mesh.m_triangleIndexBase;
mesh.m_triangleIndexBase = nullptr;
mesh.m_numVertices = 0;
delete [] mesh.m_vertexBase;
mesh.m_vertexBase = nullptr;
}
meshes.clear();
delete _dataArray;
_dataArray = nullptr;
}
private:
// the StaticMeshShape owns its vertex/index data
btTriangleIndexVertexArray* _dataArray;
};
// the dataArray must be created before we create the StaticMeshShape
// These are the same normalized directions used by the btShapeHull class.
// 12 points for the face centers of a dodecahedron plus another 30 points
// for the midpoints the edges, for a total of 42.
@ -230,23 +264,6 @@ btTriangleIndexVertexArray* createStaticMeshArray(const ShapeInfo& info) {
return dataArray;
}
// util method
void deleteStaticMeshArray(btTriangleIndexVertexArray* dataArray) {
assert(dataArray);
IndexedMeshArray& meshes = dataArray->getIndexedMeshArray();
for (int32_t i = 0; i < meshes.size(); ++i) {
btIndexedMesh mesh = meshes[i];
mesh.m_numTriangles = 0;
delete [] mesh.m_triangleIndexBase;
mesh.m_triangleIndexBase = nullptr;
mesh.m_numVertices = 0;
delete [] mesh.m_vertexBase;
mesh.m_vertexBase = nullptr;
}
meshes.clear();
delete dataArray;
}
const btCollisionShape* ShapeFactory::createShapeFromInfo(const ShapeInfo& info) {
btCollisionShape* shape = NULL;
int type = info.getType();
@ -431,7 +448,6 @@ void ShapeFactory::deleteShape(const btCollisionShape* shape) {
assert(shape);
// ShapeFactory is responsible for deleting all shapes, even the const ones that are stored
// in the ShapeManager, so we must cast to non-const here when deleting.
// so we cast to non-const here when deleting memory.
btCollisionShape* nonConstShape = const_cast<btCollisionShape*>(shape);
if (nonConstShape->getShapeType() == (int)COMPOUND_SHAPE_PROXYTYPE) {
btCompoundShape* compoundShape = static_cast<btCompoundShape*>(nonConstShape);
@ -448,14 +464,3 @@ void ShapeFactory::deleteShape(const btCollisionShape* shape) {
}
delete nonConstShape;
}
// the dataArray must be created before we create the StaticMeshShape
ShapeFactory::StaticMeshShape::StaticMeshShape(btTriangleIndexVertexArray* dataArray)
: btBvhTriangleMeshShape(dataArray, true), _dataArray(dataArray) {
assert(dataArray);
}
ShapeFactory::StaticMeshShape::~StaticMeshShape() {
deleteStaticMeshArray(_dataArray);
_dataArray = nullptr;
}

16
libraries/physics/src/ShapeFactory.h
View file

@ -17,25 +17,11 @@
#include <ShapeInfo.h>
// translates between ShapeInfo and btShape
// The ShapeFactory assembles and correctly disassembles btCollisionShapes.
namespace ShapeFactory {
const btCollisionShape* createShapeFromInfo(const ShapeInfo& info);
void deleteShape(const btCollisionShape* shape);
//btTriangleIndexVertexArray* createStaticMeshArray(const ShapeInfo& info);
//void deleteStaticMeshArray(btTriangleIndexVertexArray* dataArray);
class StaticMeshShape : public btBvhTriangleMeshShape {
public:
StaticMeshShape() = delete;
StaticMeshShape(btTriangleIndexVertexArray* dataArray);
~StaticMeshShape();
private:
// the StaticMeshShape owns its vertex/index data
btTriangleIndexVertexArray* _dataArray;
};
};
#endif // hifi_ShapeFactory_h