void BulletNifLoader::handleNiTriShape(const Nif::NiTriShape *shape, int flags, const osg::Matrixf &transform,
bool isAnimated, bool avoid)
{
assert(shape != nullptr);
// If the object was marked "NCO" earlier, it shouldn't collide with
// anything. So don't do anything.
if ((flags & 0x800))
{
return;
}
if (!shape->skin.empty())
isAnimated = false;
if (shape->data.empty())
return;
if (shape->data->triangles.empty())
return;
if (isAnimated)
{
if (!mCompoundShape)
mCompoundShape.reset(new btCompoundShape);
std::unique_ptr<btTriangleMesh> childMesh(new btTriangleMesh);
fillTriangleMesh(*childMesh, shape->data.get());
std::unique_ptr<Resource::TriangleMeshShape> childShape(new Resource::TriangleMeshShape(childMesh.get(), true));
childMesh.release();
float scale = shape->trafo.scale;
const Nif::Node* parent = shape;
while (parent->parent)
{
parent = parent->parent;
scale *= parent->trafo.scale;
}
osg::Quat q = transform.getRotate();
osg::Vec3f v = transform.getTrans();
childShape->setLocalScaling(btVector3(scale, scale, scale));
btTransform trans(btQuaternion(q.x(), q.y(), q.z(), q.w()), btVector3(v.x(), v.y(), v.z()));
mShape->mAnimatedShapes.insert(std::make_pair(shape->recIndex, mCompoundShape->getNumChildShapes()));
mCompoundShape->addChildShape(trans, childShape.get());
childShape.release();
}
else if (avoid)
{
if (!mAvoidStaticMesh)
mAvoidStaticMesh.reset(new btTriangleMesh(false));
fillTriangleMeshWithTransform(*mAvoidStaticMesh, shape->data.get(), transform);
}
else
{
if (!mStaticMesh)
mStaticMesh.reset(new btTriangleMesh(false));
// Static shape, just transform all vertices into position
fillTriangleMeshWithTransform(*mStaticMesh, shape->data.get(), transform);
}
}
void BulletNifLoader::handleNiTriShape(const Nif::NiTriShape *shape, int flags, const osg::Matrixf &transform, bool isAnimated)
{
assert(shape != NULL);
// If the object was marked "NCO" earlier, it shouldn't collide with
// anything. So don't do anything.
if ((flags & 0x800))
{
return;
}
if (!shape->skin.empty())
isAnimated = false;
if (shape->data.empty())
return;
if (shape->data->triangles.empty())
return;
if (isAnimated)
{
if (!mCompoundShape)
mCompoundShape = new btCompoundShape();
btTriangleMesh* childMesh = new btTriangleMesh();
const Nif::NiTriShapeData *data = shape->data.getPtr();
childMesh->preallocateVertices(data->vertices.size());
childMesh->preallocateIndices(data->triangles.size());
const std::vector<osg::Vec3f> &vertices = data->vertices;
const std::vector<unsigned short> &triangles = data->triangles;
for(size_t i = 0;i < data->triangles.size();i+=3)
{
osg::Vec3f b1 = vertices[triangles[i+0]];
osg::Vec3f b2 = vertices[triangles[i+1]];
osg::Vec3f b3 = vertices[triangles[i+2]];
childMesh->addTriangle(getbtVector(b1), getbtVector(b2), getbtVector(b3));
}
Resource::TriangleMeshShape* childShape = new Resource::TriangleMeshShape(childMesh,true);
float scale = shape->trafo.scale;
const Nif::Node* parent = shape;
while (parent->parent)
{
parent = parent->parent;
scale *= parent->trafo.scale;
}
osg::Quat q = transform.getRotate();
osg::Vec3f v = transform.getTrans();
childShape->setLocalScaling(btVector3(scale, scale, scale));
btTransform trans(btQuaternion(q.x(), q.y(), q.z(), q.w()), btVector3(v.x(), v.y(), v.z()));
mShape->mAnimatedShapes.insert(std::make_pair(shape->recIndex, mCompoundShape->getNumChildShapes()));
mCompoundShape->addChildShape(trans, childShape);
}
else
{
if (!mStaticMesh)
mStaticMesh = new btTriangleMesh(false);
// Static shape, just transform all vertices into position
const Nif::NiTriShapeData *data = shape->data.getPtr();
const std::vector<osg::Vec3f> &vertices = data->vertices;
const std::vector<unsigned short> &triangles = data->triangles;
mStaticMesh->preallocateVertices(data->vertices.size());
mStaticMesh->preallocateIndices(data->triangles.size());
size_t numtris = data->triangles.size();
for(size_t i = 0;i < numtris;i+=3)
{
osg::Vec3f b1 = vertices[triangles[i+0]]*transform;
osg::Vec3f b2 = vertices[triangles[i+1]]*transform;
osg::Vec3f b3 = vertices[triangles[i+2]]*transform;
mStaticMesh->addTriangle(getbtVector(b1), getbtVector(b2), getbtVector(b3));
}
}
}