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146 lines
6.7 KiB
146 lines
6.7 KiB
/******************************************************************************
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* Spine Runtimes License Agreement
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* Last updated January 1, 2020. Replaces all prior versions.
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*
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* Copyright (c) 2013-2020, Esoteric Software LLC
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*
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* Integration of the Spine Runtimes into software or otherwise creating
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* derivative works of the Spine Runtimes is permitted under the terms and
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* conditions of Section 2 of the Spine Editor License Agreement:
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* http://esotericsoftware.com/spine-editor-license
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*
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* Otherwise, it is permitted to integrate the Spine Runtimes into software
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* or otherwise create derivative works of the Spine Runtimes (collectively,
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* "Products"), provided that each user of the Products must obtain their own
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* Spine Editor license and redistribution of the Products in any form must
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* include this license and copyright notice.
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*
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* THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
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* BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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#ifdef SPINE_UE4
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#include "SpinePluginPrivatePCH.h"
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#endif
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#include <spine/TransformConstraintTimeline.h>
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#include <spine/Event.h>
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#include <spine/Skeleton.h>
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#include <spine/Animation.h>
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#include <spine/Slot.h>
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#include <spine/SlotData.h>
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#include <spine/TimelineType.h>
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#include <spine/TransformConstraint.h>
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#include <spine/TransformConstraintData.h>
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using namespace spine;
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RTTI_IMPL(TransformConstraintTimeline, CurveTimeline)
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const int TransformConstraintTimeline::ENTRIES = 5;
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const int TransformConstraintTimeline::PREV_TIME = -5;
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const int TransformConstraintTimeline::PREV_ROTATE = -4;
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const int TransformConstraintTimeline::PREV_TRANSLATE = -3;
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const int TransformConstraintTimeline::PREV_SCALE = -2;
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const int TransformConstraintTimeline::PREV_SHEAR = -1;
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const int TransformConstraintTimeline::ROTATE = 1;
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const int TransformConstraintTimeline::TRANSLATE = 2;
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const int TransformConstraintTimeline::SCALE = 3;
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const int TransformConstraintTimeline::SHEAR = 4;
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TransformConstraintTimeline::TransformConstraintTimeline(int frameCount) : CurveTimeline(frameCount),
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_transformConstraintIndex(0) {
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_frames.setSize(frameCount * ENTRIES, 0);
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}
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void TransformConstraintTimeline::apply(Skeleton &skeleton, float lastTime, float time, Vector<Event *> *pEvents,
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float alpha, MixBlend blend, MixDirection direction) {
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SP_UNUSED(lastTime);
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SP_UNUSED(pEvents);
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SP_UNUSED(direction);
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TransformConstraint *constraintP = skeleton._transformConstraints[_transformConstraintIndex];
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TransformConstraint &constraint = *constraintP;
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if (!constraint.isActive()) return;
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if (time < _frames[0]) {
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switch (blend) {
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case MixBlend_Setup:
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constraint._rotateMix = constraint._data._rotateMix;
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constraint._translateMix = constraint._data._translateMix;
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constraint._scaleMix = constraint._data._scaleMix;
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constraint._shearMix = constraint._data._shearMix;
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return;
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case MixBlend_First:
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constraint._rotateMix += (constraint._data._rotateMix - constraint._rotateMix) * alpha;
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constraint._translateMix += (constraint._data._translateMix - constraint._translateMix) * alpha;
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constraint._scaleMix += (constraint._data._scaleMix - constraint._scaleMix) * alpha;
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constraint._shearMix += (constraint._data._shearMix - constraint._shearMix) * alpha;
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return;
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default:
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return;
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}
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}
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float rotate, translate, scale, shear;
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if (time >= _frames[_frames.size() - ENTRIES]) {
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// Time is after last frame.
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size_t i = _frames.size();
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rotate = _frames[i + PREV_ROTATE];
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translate = _frames[i + PREV_TRANSLATE];
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scale = _frames[i + PREV_SCALE];
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shear = _frames[i + PREV_SHEAR];
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} else {
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// Interpolate between the previous frame and the current frame.
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int frame = Animation::binarySearch(_frames, time, ENTRIES);
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rotate = _frames[frame + PREV_ROTATE];
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translate = _frames[frame + PREV_TRANSLATE];
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scale = _frames[frame + PREV_SCALE];
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shear = _frames[frame + PREV_SHEAR];
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float frameTime = _frames[frame];
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float percent = getCurvePercent(frame / ENTRIES - 1,
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1 - (time - frameTime) / (_frames[frame + PREV_TIME] - frameTime));
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rotate += (_frames[frame + ROTATE] - rotate) * percent;
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translate += (_frames[frame + TRANSLATE] - translate) * percent;
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scale += (_frames[frame + SCALE] - scale) * percent;
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shear += (_frames[frame + SHEAR] - shear) * percent;
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}
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if (blend == MixBlend_Setup) {
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TransformConstraintData &data = constraint._data;
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constraint._rotateMix = data._rotateMix + (rotate - data._rotateMix) * alpha;
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constraint._translateMix = data._translateMix + (translate - data._translateMix) * alpha;
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constraint._scaleMix = data._scaleMix + (scale - data._scaleMix) * alpha;
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constraint._shearMix = data._shearMix + (shear - data._shearMix) * alpha;
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} else {
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constraint._rotateMix += (rotate - constraint._rotateMix) * alpha;
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constraint._translateMix += (translate - constraint._translateMix) * alpha;
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constraint._scaleMix += (scale - constraint._scaleMix) * alpha;
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constraint._shearMix += (shear - constraint._shearMix) * alpha;
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}
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}
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int TransformConstraintTimeline::getPropertyId() {
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return ((int)TimelineType_TransformConstraint << 24) + _transformConstraintIndex;
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}
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void TransformConstraintTimeline::setFrame(size_t frameIndex, float time, float rotateMix, float translateMix, float scaleMix,
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float shearMix) {
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frameIndex *= ENTRIES;
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_frames[frameIndex] = time;
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_frames[frameIndex + ROTATE] = rotateMix;
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_frames[frameIndex + TRANSLATE] = translateMix;
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_frames[frameIndex + SCALE] = scaleMix;
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_frames[frameIndex + SHEAR] = shearMix;
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}
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