mirror of
https://github.com/OpenMW/openmw.git
synced 2025-11-04 06:26:39 +00:00
102 lines
2.9 KiB
C++
102 lines
2.9 KiB
C++
#include "bulletshape.hpp"
|
|
|
|
#include <stdexcept>
|
|
|
|
#include <BulletCollision/CollisionShapes/btBoxShape.h>
|
|
#include <BulletCollision/CollisionShapes/btTriangleMesh.h>
|
|
#include <BulletCollision/CollisionShapes/btScaledBvhTriangleMeshShape.h>
|
|
#include <BulletCollision/CollisionShapes/btCompoundShape.h>
|
|
|
|
namespace Resource
|
|
{
|
|
|
|
BulletShape::BulletShape()
|
|
: mCollisionShape(NULL)
|
|
{
|
|
|
|
}
|
|
|
|
BulletShape::~BulletShape()
|
|
{
|
|
deleteShape(mCollisionShape);
|
|
}
|
|
|
|
void BulletShape::deleteShape(btCollisionShape* shape)
|
|
{
|
|
if(shape!=NULL)
|
|
{
|
|
if(shape->isCompound())
|
|
{
|
|
btCompoundShape* ms = static_cast<btCompoundShape*>(shape);
|
|
int a = ms->getNumChildShapes();
|
|
for(int i=0; i <a;i++)
|
|
deleteShape(ms->getChildShape(i));
|
|
}
|
|
delete shape;
|
|
}
|
|
}
|
|
|
|
btCollisionShape* BulletShape::duplicateCollisionShape(btCollisionShape *shape) const
|
|
{
|
|
if(shape->isCompound())
|
|
{
|
|
btCompoundShape *comp = static_cast<btCompoundShape*>(shape);
|
|
btCompoundShape *newShape = new btCompoundShape;
|
|
|
|
int numShapes = comp->getNumChildShapes();
|
|
for(int i = 0;i < numShapes;++i)
|
|
{
|
|
btCollisionShape *child = duplicateCollisionShape(comp->getChildShape(i));
|
|
btTransform trans = comp->getChildTransform(i);
|
|
newShape->addChildShape(trans, child);
|
|
}
|
|
|
|
return newShape;
|
|
}
|
|
|
|
if(btBvhTriangleMeshShape* trishape = dynamic_cast<btBvhTriangleMeshShape*>(shape))
|
|
{
|
|
#if BT_BULLET_VERSION >= 283
|
|
btScaledBvhTriangleMeshShape* newShape = new btScaledBvhTriangleMeshShape(trishape, btVector3(1.f, 1.f, 1.f));
|
|
#else
|
|
// work around btScaledBvhTriangleMeshShape bug ( https://code.google.com/p/bullet/issues/detail?id=371 ) in older bullet versions
|
|
btTriangleMesh* oldMesh = static_cast<btTriangleMesh*>(trishape->getMeshInterface());
|
|
btTriangleMesh* newMesh = new btTriangleMesh(*oldMesh);
|
|
TriangleMeshShape* newShape = new TriangleMeshShape(newMesh, true);
|
|
#endif
|
|
return newShape;
|
|
}
|
|
|
|
if (btBoxShape* boxshape = dynamic_cast<btBoxShape*>(shape))
|
|
{
|
|
return new btBoxShape(*boxshape);
|
|
}
|
|
|
|
throw std::logic_error(std::string("Unhandled Bullet shape duplication: ")+shape->getName());
|
|
}
|
|
|
|
btCollisionShape *BulletShape::getCollisionShape()
|
|
{
|
|
return mCollisionShape;
|
|
}
|
|
|
|
osg::ref_ptr<BulletShapeInstance> BulletShape::makeInstance()
|
|
{
|
|
osg::ref_ptr<BulletShapeInstance> instance (new BulletShapeInstance(this));
|
|
return instance;
|
|
}
|
|
|
|
BulletShapeInstance::BulletShapeInstance(osg::ref_ptr<BulletShape> source)
|
|
: BulletShape()
|
|
, mSource(source)
|
|
{
|
|
mCollisionBoxHalfExtents = source->mCollisionBoxHalfExtents;
|
|
mCollisionBoxTranslate = source->mCollisionBoxTranslate;
|
|
|
|
mAnimatedShapes = source->mAnimatedShapes;
|
|
|
|
if (source->mCollisionShape)
|
|
mCollisionShape = duplicateCollisionShape(source->mCollisionShape);
|
|
}
|
|
|
|
}
|