117 lines
3.6 KiB
C++
117 lines
3.6 KiB
C++
// Filename: physicsObject.cxx
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// Created by: charles (13Jun00)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) 2001, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://www.panda3d.org/license.txt .
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//
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// To contact the maintainers of this program write to
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// panda3d@yahoogroups.com .
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//
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////////////////////////////////////////////////////////////////////
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#include "physicsObject.h"
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TypeHandle PhysicsObject::_type_handle;
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////////////////////////////////////////////////////////////////////
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// Function : PhysicsObject
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// Access : Public
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// Description : Default Constructor
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////////////////////////////////////////////////////////////////////
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PhysicsObject::
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PhysicsObject(void) :
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_terminal_velocity(_default_terminal_velocity),
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_mass(1.0f),
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_process_me(false),
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_oriented(true)
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{
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_position.set(0, 0, 0);
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_last_position = _position;
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_velocity.set(0, 0, 0);
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_orientation.set(1, 0, 0, 0);
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_rotation.set(0, 0, 0);
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}
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////////////////////////////////////////////////////////////////////
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// Function : PhysicsObject
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// Access : Public
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// Description : copy constructor
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////////////////////////////////////////////////////////////////////
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PhysicsObject::
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PhysicsObject(const PhysicsObject& copy) {
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operator=(copy);
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}
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////////////////////////////////////////////////////////////////////
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// Function : ~PhysicsObject
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// Access : Public
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// Description : Destructor
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////////////////////////////////////////////////////////////////////
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PhysicsObject::
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~PhysicsObject(void) {
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}
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////////////////////////////////////////////////////////////////////
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// Function : Assignment operator
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// Access : Public
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// Description :
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////////////////////////////////////////////////////////////////////
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const PhysicsObject &PhysicsObject::
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operator =(const PhysicsObject &other) {
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_process_me = other._process_me;
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_mass = other._mass;
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_position = other._position;
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_last_position = other._last_position;
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_velocity = other._velocity;
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_orientation = other._orientation;
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_rotation = other._rotation;
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_terminal_velocity = other._terminal_velocity;
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_oriented = other._oriented;
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return *this;
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}
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////////////////////////////////////////////////////////////////////
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// Function : make_copy
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// Access : Public, virtual
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// Description : dynamic copy.
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////////////////////////////////////////////////////////////////////
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PhysicsObject *PhysicsObject::
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make_copy(void) const {
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return new PhysicsObject(*this);
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}
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////////////////////////////////////////////////////////////////////
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// Function : get_lcs
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// Access : Public
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// Description : returns a transform matrix to this object's
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// local coordinate system.
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////////////////////////////////////////////////////////////////////
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LMatrix4f PhysicsObject::
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get_lcs(void) const {
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LMatrix4f m = LMatrix4f::translate_mat(_position);
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if (_oriented == true)
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_orientation.extract_to_matrix(m);
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return m;
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}
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////////////////////////////////////////////////////////////////////
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// Function : get_inertial_tensor
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// Access : Public
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// Description : returns a transform matrix that represents the
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// object's willingness to be forced.
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////////////////////////////////////////////////////////////////////
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LMatrix4f PhysicsObject::
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get_inertial_tensor(void) const {
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return LMatrix4f::ident_mat();
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}
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