IkConstraintTimeline.cpp
7.28 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
/******************************************************************************
* Spine Runtimes License Agreement
* Last updated May 1, 2019. Replaces all prior versions.
*
* Copyright (c) 2013-2019, Esoteric Software LLC
*
* Integration of the Spine Runtimes into software or otherwise creating
* derivative works of the Spine Runtimes is permitted under the terms and
* conditions of Section 2 of the Spine Editor License Agreement:
* http://esotericsoftware.com/spine-editor-license
*
* Otherwise, it is permitted to integrate the Spine Runtimes into software
* or otherwise create derivative works of the Spine Runtimes (collectively,
* "Products"), provided that each user of the Products must obtain their own
* Spine Editor license and redistribution of the Products in any form must
* include this license and copyright notice.
*
* THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, BUSINESS
* INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
#ifdef SPINE_UE4
#include "SpinePluginPrivatePCH.h"
#endif
#include <spine/IkConstraintTimeline.h>
#include <spine/Skeleton.h>
#include <spine/Event.h>
#include <spine/Animation.h>
#include <spine/TimelineType.h>
#include <spine/Slot.h>
#include <spine/SlotData.h>
#include <spine/IkConstraint.h>
#include <spine/IkConstraintData.h>
using namespace spine;
RTTI_IMPL(IkConstraintTimeline, CurveTimeline)
const int IkConstraintTimeline::ENTRIES = 6;
const int IkConstraintTimeline::PREV_TIME = -6;
const int IkConstraintTimeline::PREV_MIX = -5;
const int IkConstraintTimeline::PREV_SOFTNESS = -4;
const int IkConstraintTimeline::PREV_BEND_DIRECTION = -3;
const int IkConstraintTimeline::PREV_COMPRESS = -2;
const int IkConstraintTimeline::PREV_STRETCH = -1;
const int IkConstraintTimeline::MIX = 1;
const int IkConstraintTimeline::SOFTNESS = 2;
const int IkConstraintTimeline::BEND_DIRECTION = 3;
const int IkConstraintTimeline::COMPRESS = 4;
const int IkConstraintTimeline::STRETCH = 5;
IkConstraintTimeline::IkConstraintTimeline(int frameCount) : CurveTimeline(frameCount), _ikConstraintIndex(0) {
_frames.setSize(frameCount * ENTRIES, 0);
}
void IkConstraintTimeline::apply(Skeleton &skeleton, float lastTime, float time, Vector<Event *> *pEvents, float alpha,
MixBlend blend, MixDirection direction) {
SP_UNUSED(lastTime);
SP_UNUSED(pEvents);
IkConstraint *constraintP = skeleton._ikConstraints[_ikConstraintIndex];
IkConstraint &constraint = *constraintP;
if (!constraint.isActive()) return;
if (time < _frames[0]) {
switch (blend) {
case MixBlend_Setup:
constraint._mix = constraint._data._mix;
constraint._softness = constraint._data._softness;
constraint._bendDirection = constraint._data._bendDirection;
constraint._compress = constraint._data._compress;
constraint._stretch = constraint._data._stretch;
return;
case MixBlend_First:
constraint._mix += (constraint._data._mix - constraint._mix) * alpha;
constraint._softness += (constraint._data._softness - constraint._softness) * alpha;
constraint._bendDirection = constraint._data._bendDirection;
constraint._compress = constraint._data._compress;
constraint._stretch = constraint._data._stretch;
return;
default:
return;
}
}
if (time >= _frames[_frames.size() - ENTRIES]) {
// Time is after last frame.
if (blend == MixBlend_Setup) {
constraint._mix =
constraint._data._mix + (_frames[_frames.size() + PREV_MIX] - constraint._data._mix) * alpha;
constraint._softness = constraint._data._softness
+ (_frames[_frames.size() + PREV_SOFTNESS] - constraint._data._softness) * alpha;
if (direction == MixDirection_Out) {
constraint._bendDirection = constraint._data._bendDirection;
constraint._compress = constraint._data._compress;
constraint._stretch = constraint._data._stretch;
} else {
constraint._bendDirection = (int) _frames[_frames.size() + PREV_BEND_DIRECTION];
constraint._compress = _frames[_frames.size() + PREV_COMPRESS] != 0;
constraint._stretch = _frames[_frames.size() + PREV_STRETCH] != 0;
}
} else {
constraint._mix += (_frames[_frames.size() + PREV_MIX] - constraint._mix) * alpha;
constraint._softness += (_frames[_frames.size() + PREV_SOFTNESS] - constraint._softness) * alpha;
if (direction == MixDirection_In) {
constraint._bendDirection = (int) _frames[_frames.size() + PREV_BEND_DIRECTION];
constraint._compress = _frames[_frames.size() + PREV_COMPRESS] != 0;
constraint._stretch = _frames[_frames.size() + PREV_STRETCH] != 0;
}
}
return;
}
// Interpolate between the previous frame and the current frame.
int frame = Animation::binarySearch(_frames, time, ENTRIES);
float mix = _frames[frame + PREV_MIX];
float softness = _frames[frame + PREV_SOFTNESS];
float frameTime = _frames[frame];
float percent = getCurvePercent(frame / ENTRIES - 1,
1 - (time - frameTime) / (_frames[frame + PREV_TIME] - frameTime));
if (blend == MixBlend_Setup) {
constraint._mix =
constraint._data._mix + (mix + (_frames[frame + MIX] - mix) * percent - constraint._data._mix) * alpha;
constraint._softness = constraint._data._softness
+ (softness + (_frames[frame + SOFTNESS] - softness) * percent - constraint._data._softness) * alpha;
if (direction == MixDirection_Out) {
constraint._bendDirection = constraint._data._bendDirection;
constraint._compress = constraint._data._compress;
constraint._stretch = constraint._data._stretch;
} else {
constraint._bendDirection = (int) _frames[_frames.size() + PREV_BEND_DIRECTION];
constraint._compress = _frames[frame + PREV_COMPRESS] != 0;
constraint._stretch = _frames[frame + PREV_STRETCH] != 0;
}
} else {
constraint._mix += (mix + (_frames[frame + MIX] - mix) * percent - constraint._mix) * alpha;
constraint._softness += (softness + (_frames[frame + SOFTNESS] - softness) * percent - constraint._softness) * alpha;
if (direction == MixDirection_In) {
constraint._bendDirection = (int) _frames[frame + PREV_BEND_DIRECTION];
constraint._compress = _frames[frame + PREV_COMPRESS] != 0;
constraint._stretch = _frames[frame + PREV_STRETCH] != 0;
}
}
}
int IkConstraintTimeline::getPropertyId() {
return ((int) TimelineType_IkConstraint << 24) + _ikConstraintIndex;
}
void IkConstraintTimeline::setFrame(int frameIndex, float time, float mix, float softness, int bendDirection, bool compress, bool stretch) {
frameIndex *= ENTRIES;
_frames[frameIndex] = time;
_frames[frameIndex + MIX] = mix;
_frames[frameIndex + SOFTNESS] = softness;
_frames[frameIndex + BEND_DIRECTION] = (float)bendDirection;
_frames[frameIndex + COMPRESS] = compress ? 1 : 0;
_frames[frameIndex + STRETCH] = stretch ? 1 : 0;
}