85 lines
3.0 KiB
C++
85 lines
3.0 KiB
C++
// Filename: cConstrainHprInterval.cxx
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// Created by: pratt (10Mar08)
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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) Carnegie Mellon University. All rights reserved.
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//
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// All use of this software is subject to the terms of the revised BSD
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// license. You should have received a copy of this license along
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// with this source code in a file named "LICENSE."
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//
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////////////////////////////////////////////////////////////////////
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#include "cConstrainHprInterval.h"
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#include "config_interval.h"
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#include "lvecBase3.h"
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TypeHandle CConstrainHprInterval::_type_handle;
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////////////////////////////////////////////////////////////////////
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// Function: CConstrainHprInterval::Constructor
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// Access: Published
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// Description: Constructs a constraint interval that will constrain
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// the orientation of one node to the orientation of
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// another, possibly with an added rotation.
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//
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// If wrt is true, the node's orientation will be
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// transformed into the target node's parent's space
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// before being copied. If wrt is false, the target
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// node's local orientation will be copied unaltered.
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////////////////////////////////////////////////////////////////////
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CConstrainHprInterval::
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CConstrainHprInterval(const string &name, double duration,
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const NodePath &node, const NodePath &target,
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bool wrt, const LVecBase3f hprOffset) :
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CConstraintInterval(name, duration),
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_node(node),
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_target(target),
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_wrt(wrt)
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{
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_quatOffset.set_hpr(hprOffset);
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}
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////////////////////////////////////////////////////////////////////
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// Function: CConstrainHprInterval::step
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// Access: Published, Virtual
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// Description: Advances the time on the interval. The time may
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// either increase (the normal case) or decrease
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// (e.g. if the interval is being played by a slider).
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////////////////////////////////////////////////////////////////////
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void CConstrainHprInterval::
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priv_step(double t) {
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check_started(get_class_type(), "priv_step");
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_state = S_started;
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_curr_t = t;
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if(! _target.is_empty()) {
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if(_wrt) {
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if(! _node.is_same_graph(_target)){
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interval_cat.warning()
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<< "Unable to copy orientation in CConstrainHprInterval::priv_step;\n"
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<< "node (" << _node.get_name()
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<< ") and target (" << _target.get_name()
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<< ") are not in the same graph.\n";
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return;
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}
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_target.set_quat(_node, _quatOffset);
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} else {
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_target.set_quat(_quatOffset*_node.get_quat());
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}
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}
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}
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////////////////////////////////////////////////////////////////////
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// Function: CConstrainHprInterval::output
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// Access: Published, Virtual
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// Description:
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////////////////////////////////////////////////////////////////////
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void CConstrainHprInterval::
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output(ostream &out) const {
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out << get_name() << ":";
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out << " dur " << get_duration();
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}
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