141 lines
5.0 KiB
C++
141 lines
5.0 KiB
C++
// Filename: eggJointNodePointer.cxx
|
|
// Created by: drose (26Feb01)
|
|
//
|
|
////////////////////////////////////////////////////////////////////
|
|
//
|
|
// PANDA 3D SOFTWARE
|
|
// Copyright (c) 2001, Disney Enterprises, Inc. All rights reserved
|
|
//
|
|
// All use of this software is subject to the terms of the Panda 3d
|
|
// Software license. You should have received a copy of this license
|
|
// along with this source code; you will also find a current copy of
|
|
// the license at http://www.panda3d.org/license.txt .
|
|
//
|
|
// To contact the maintainers of this program write to
|
|
// panda3d@yahoogroups.com .
|
|
//
|
|
////////////////////////////////////////////////////////////////////
|
|
|
|
#include "eggJointNodePointer.h"
|
|
|
|
#include "dcast.h"
|
|
#include "eggObject.h"
|
|
#include "eggGroup.h"
|
|
#include "pointerTo.h"
|
|
|
|
|
|
TypeHandle EggJointNodePointer::_type_handle;
|
|
|
|
////////////////////////////////////////////////////////////////////
|
|
// Function: EggJointNodePointer::Constructor
|
|
// Access: Public
|
|
// Description:
|
|
////////////////////////////////////////////////////////////////////
|
|
EggJointNodePointer::
|
|
EggJointNodePointer(EggObject *object) {
|
|
_joint = DCAST(EggGroup, object);
|
|
|
|
if (_joint != (EggGroup *)NULL) {
|
|
// Quietly insist that the joint has a transform, for neatness. If
|
|
// it does not, give it the identity transform.
|
|
if (!_joint->has_transform()) {
|
|
_joint->set_transform(LMatrix4d::ident_mat());
|
|
}
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////
|
|
// Function: EggJointNodePointer::get_num_frames
|
|
// Access: Public, Virtual
|
|
// Description: Returns the number of frames of animation for this
|
|
// particular joint.
|
|
//
|
|
// In the case of a EggJointNodePointer, which just
|
|
// stores a pointer to a <Joint> entry for a character
|
|
// model (not an animation table), there is always
|
|
// exactly one frame: the rest pose.
|
|
////////////////////////////////////////////////////////////////////
|
|
int EggJointNodePointer::
|
|
get_num_frames() const {
|
|
return 1;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////
|
|
// Function: EggJointNodePointer::get_frame
|
|
// Access: Public, Virtual
|
|
// Description: Returns the transform matrix corresponding to this
|
|
// joint position in the nth frame.
|
|
//
|
|
// In the case of a EggJointNodePointer, which just
|
|
// stores a pointer to a <Joint> entry for a character
|
|
// model (not an animation table), there is always
|
|
// exactly one frame: the rest pose.
|
|
////////////////////////////////////////////////////////////////////
|
|
LMatrix4d EggJointNodePointer::
|
|
get_frame(int n) const {
|
|
nassertr(n == 0, LMatrix4d::ident_mat());
|
|
return _joint->get_transform();
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////
|
|
// Function: EggJointNodePointer::set_frame
|
|
// Access: Public, Virtual
|
|
// Description: Sets the transform matrix corresponding to this
|
|
// joint position in the nth frame.
|
|
//
|
|
// In the case of a EggJointNodePointer, which just
|
|
// stores a pointer to a <Joint> entry for a character
|
|
// model (not an animation table), there is always
|
|
// exactly one frame: the rest pose.
|
|
////////////////////////////////////////////////////////////////////
|
|
void EggJointNodePointer::
|
|
set_frame(int n, const LMatrix4d &mat) {
|
|
nassertv(n == 0);
|
|
_joint->set_transform(mat);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////
|
|
// Function: EggJointNodePointer::add_rebuild_frame
|
|
// Access: Public, Virtual
|
|
// Description: Adds a new frame to the set of rebuild frames. See
|
|
// begin_rebuild() and do_rebuild(). Returns true if
|
|
// this is valid, false otherwise (e.g. adding multiple
|
|
// frames to a static joint).
|
|
////////////////////////////////////////////////////////////////////
|
|
bool EggJointNodePointer::
|
|
add_rebuild_frame(const LMatrix4d &mat) {
|
|
if (!_rebuild_frames.empty()) {
|
|
// Only one frame may be added to a <Joint>.
|
|
return false;
|
|
}
|
|
return EggJointPointer::add_rebuild_frame(mat);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////
|
|
// Function: EggJointNodePointer::do_rebuild
|
|
// Access: Public, Virtual
|
|
// Description: Rebuilds the entire table all at once, based on the
|
|
// frames added by repeated calls to add_rebuild_frame()
|
|
// since the last call to begin_rebuild().
|
|
//
|
|
// Until do_rebuild() is called, the animation table is
|
|
// not changed.
|
|
//
|
|
// The return value is true if all frames are
|
|
// acceptable, or false if there is some problem.
|
|
////////////////////////////////////////////////////////////////////
|
|
bool EggJointNodePointer::
|
|
do_rebuild() {
|
|
if (_rebuild_frames.empty()) {
|
|
return true;
|
|
}
|
|
|
|
if (_rebuild_frames.size() != 1) {
|
|
return false;
|
|
}
|
|
|
|
_joint->set_transform(_rebuild_frames[0]);
|
|
_rebuild_frames.clear();
|
|
return true;
|
|
}
|