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trackerData.I
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// Filename: trackerData.I
// Created by: jason (04Aug00)
//
////////////////////////////////////////////////////////////////////
//
// PANDA 3D SOFTWARE
// Copyright (c) Carnegie Mellon University. All rights reserved.
//
// All use of this software is subject to the terms of the revised BSD
// license. You should have received a copy of this license along
// with this source code in a file named "LICENSE."
//
////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////
// Function: TrackerData::Default Constructor
// Access: Public
// Description:
////////////////////////////////////////////////////////////////////
INLINE TrackerData::
TrackerData() :
_flags(0)
{
}
////////////////////////////////////////////////////////////////////
// Function: TrackerData::Copy Constructor
// Access: Public
// Description:
////////////////////////////////////////////////////////////////////
INLINE TrackerData::
TrackerData(const TrackerData ©) {
(*this) = copy;
}
////////////////////////////////////////////////////////////////////
// Function: TrackerData::clear
// Access: Public
// Description: Removes all data from the structure.
////////////////////////////////////////////////////////////////////
INLINE void TrackerData::
clear() {
_flags = 0;
}
////////////////////////////////////////////////////////////////////
// Function: TrackerData::set_time
// Access: Public
// Description: Indicates the time at which the position information
// (pos and orient) are effective. This is a time
// elapsed in seconds since some undefined epoch; it may
// or may not correspond to the clock time indicated in
// the global ClockObject.
////////////////////////////////////////////////////////////////////
INLINE void TrackerData::
set_time(double time) {
_time = time;
_flags |= F_has_time;
}
////////////////////////////////////////////////////////////////////
// Function: TrackerData::has_time
// Access: Public
// Description: Returns true if the position information time is
// available. See set_time().
////////////////////////////////////////////////////////////////////
INLINE bool TrackerData::
has_time() const {
return (_flags & F_has_time) != 0;
}
////////////////////////////////////////////////////////////////////
// Function: TrackerData::get_time
// Access: Public
// Description: Returns the time at which the position information
// (pos and orient) are effective. It is an error to
// call this if has_time() does not return true. See
// set_time().
////////////////////////////////////////////////////////////////////
INLINE double TrackerData::
get_time() const {
nassertr(has_time(), 0.0);
return _time;
}
////////////////////////////////////////////////////////////////////
// Function: TrackerData::set_pos
// Access: Public
// Description: Indicates the current position of the tracker sensor
// in space. The coordinate system of this position is
// defined by the tracker.
////////////////////////////////////////////////////////////////////
INLINE void TrackerData::
set_pos(const LPoint3 &pos) {
_pos = pos;
_flags |= F_has_pos;
}
////////////////////////////////////////////////////////////////////
// Function: TrackerData::has_pos
// Access: Public
// Description: Returns true if the current position is available.
// See set_pos().
////////////////////////////////////////////////////////////////////
INLINE bool TrackerData::
has_pos() const {
return (_flags & F_has_pos) != 0;
}
////////////////////////////////////////////////////////////////////
// Function: TrackerData::get_pos
// Access: Public
// Description: Returns the current position of the tracker. It is
// legal to call this if has_pos() returns false; in
// this case, the position will always be (0, 0, 0).
////////////////////////////////////////////////////////////////////
INLINE const LPoint3 &TrackerData::
get_pos() const {
if (has_pos()) {
return _pos;
} else {
static LPoint3 zero(0.0, 0.0, 0.0);
return zero;
}
}
////////////////////////////////////////////////////////////////////
// Function: TrackerData::set_orient
// Access: Public
// Description: Indicates the current orientation of the tracker
// sensor in space. The coordinate system of this
// orientation is defined by the tracker, but should be
// the same coordinate system as that reflected by
// set_pos().
////////////////////////////////////////////////////////////////////
INLINE void TrackerData::
set_orient(const LOrientation &orient) {
_orient = orient;
_flags |= F_has_orient;
}
////////////////////////////////////////////////////////////////////
// Function: TrackerData::has_orient
// Access: Public
// Description: Returns true if the current orientation is available.
// See set_orient().
////////////////////////////////////////////////////////////////////
INLINE bool TrackerData::
has_orient() const {
return (_flags & F_has_orient) != 0;
}
////////////////////////////////////////////////////////////////////
// Function: TrackerData::get_orient
// Access: Public
// Description: Returns the current orientation of the tracker. It
// is legal to call this if has_orient() returns false;
// in this case, the result is always the identity
// orientation.
////////////////////////////////////////////////////////////////////
INLINE const LOrientation &TrackerData::
get_orient() const {
if (has_orient()) {
return _orient;
} else {
static LOrientation ident = LOrientation::ident_quat();
return ident;
}
}
////////////////////////////////////////////////////////////////////
// Function: TrackerData::set_dt
// Access: Public
// Description: Indicates the amount of elapsed time over which which
// the information (pos and orient) were computed. This
// only makes sense if the information represents
// velocity or acceleration, rather than position. This
// is an elapsed time in seconds.
////////////////////////////////////////////////////////////////////
INLINE void TrackerData::
set_dt(double dt) {
_dt = dt;
_flags |= F_has_dt;
}
////////////////////////////////////////////////////////////////////
// Function: TrackerData::has_dt
// Access: Public
// Description: Returns true if the computed elapsed time is
// available. See set_dt().
////////////////////////////////////////////////////////////////////
INLINE bool TrackerData::
has_dt() const {
return (_flags & F_has_dt) != 0;
}
////////////////////////////////////////////////////////////////////
// Function: TrackerData::get_dt
// Access: Public
// Description: Returns the amount of elapsed time over which the
// information (pos and orient) were computed. It
// is an error to call this if has_dt() does not return
// true. See set_dt().
////////////////////////////////////////////////////////////////////
INLINE double TrackerData::
get_dt() const {
nassertr(has_dt(), 0.0);
return _dt;
}