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cLerpAnimEffectInterval.cxx
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1/**
2 * PANDA 3D SOFTWARE
3 * Copyright (c) Carnegie Mellon University. All rights reserved.
4 *
5 * All use of this software is subject to the terms of the revised BSD
6 * license. You should have received a copy of this license along
7 * with this source code in a file named "LICENSE."
8 *
9 * @file cLerpAnimEffectInterval.cxx
10 * @author drose
11 * @date 2002-08-27
12 */
13
14#include "cLerpAnimEffectInterval.h"
15#include "lerp_helpers.h"
16#include "partBundle.h"
17
18 TypeHandle CLerpAnimEffectInterval::_type_handle;
19
20/**
21 * Advances the time on the interval. The time may either increase (the
22 * normal case) or decrease (e.g. if the interval is being played by a
23 * slider).
24 */
25 void CLerpAnimEffectInterval::
26 priv_step(double t) {
27 check_started(get_class_type(), "priv_step");
28 _state = S_started;
29 double d = compute_delta(t);
30
31 Controls::iterator ci;
32 for (ci = _controls.begin(); ci != _controls.end(); ++ci) {
33 ControlDef &def = (*ci);
34 float effect;
35 lerp_value(effect, d, def._begin_effect, def._end_effect);
36 def._control->get_part()->set_control_effect(def._control, effect);
37 }
38
39 _curr_t = t;
40}
41
42/**
43 *
44 */
45 void CLerpAnimEffectInterval::
46output(std::ostream &out) const {
47 out << get_name() << ": ";
48
49 if (_controls.empty()) {
50 out << "(no controls)";
51 } else {
52 Controls::const_iterator ci;
53 ci = _controls.begin();
54 out << (*ci)._name;
55 ++ci;
56 while (ci != _controls.end()) {
57 out << ", " << (*ci)._name;
58 ++ci;
59 }
60 }
61
62 out << " dur " << get_duration();
63}
cLerpAnimEffectInterval.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
CInterval::get_name
get_name
Returns the interval's name.
Definition cInterval.h:126
CInterval::get_duration
get_duration
Returns the duration of the interval in seconds.
Definition cInterval.h:127
CLerpAnimEffectInterval::priv_step
virtual void priv_step(double t)
Advances the time on the interval.
Definition cLerpAnimEffectInterval.cxx:26
TypeHandle
TypeHandle is the identifier used to differentiate C++ class types.
Definition typeHandle.h:81
lerp_helpers.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
lerp_value
void lerp_value(NumericType &current_value, double d, const NumericType &starting_value, const NumericType &ending_value)
Applies the linear lerp computation for a single parameter.
Definition lerp_helpers.h:27
partBundle.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.