mirror of
https://github.com/EsotericSoftware/spine-runtimes.git
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99 lines
3.7 KiB
C++
99 lines
3.7 KiB
C++
/******************************************************************************
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* Spine Runtimes Software License v2.5
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*
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* Copyright (c) 2013-2016, Esoteric Software
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* All rights reserved.
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*
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* You are granted a perpetual, non-exclusive, non-sublicensable, and
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* non-transferable license to use, install, execute, and perform the Spine
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* Runtimes software and derivative works solely for personal or internal
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* use. Without the written permission of Esoteric Software (see Section 2 of
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* the Spine Software License Agreement), you may not (a) modify, translate,
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* adapt, or develop new applications using the Spine Runtimes or otherwise
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* create derivative works or improvements of the Spine Runtimes or (b) remove,
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* delete, alter, or obscure any trademarks or any copyright, trademark, patent,
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* or other intellectual property or proprietary rights notices on or in the
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* Software, including any copy thereof. Redistributions in binary or source
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* form must include this license and terms.
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*
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* THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "AS IS" AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL ESOTERIC SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, BUSINESS INTERRUPTION, OR LOSS OF
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* USE, DATA, OR PROFITS) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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#include <spine/ShearTimeline.h>
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#include <spine/Skeleton.h>
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#include <spine/Event.h>
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#include <spine/Slot.h>
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#include <spine/SlotData.h>
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#include <spine/Bone.h>
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#include <spine/BoneData.h>
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using namespace Spine;
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RTTI_IMPL(ShearTimeline, TranslateTimeline);
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ShearTimeline::ShearTimeline(int frameCount) : TranslateTimeline(frameCount) {
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}
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void ShearTimeline::apply(Skeleton &skeleton, float lastTime, float time, Vector<Event *> *pEvents, float alpha,
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MixPose pose, MixDirection direction) {
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Bone *boneP = skeleton._bones[_boneIndex];
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Bone &bone = *boneP;
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if (time < _frames[0]) {
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switch (pose) {
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case MixPose_Setup:
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bone._shearX = bone._data._shearX;
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bone._shearY = bone._data._shearY;
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return;
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case MixPose_Current:
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bone._shearX += (bone._data._shearX - bone._shearX) * alpha;
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bone._shearY += (bone._data._shearY - bone._shearY) * alpha;
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return;
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case MixPose_CurrentLayered:
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default:
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return;
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}
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}
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float x, y;
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if (time >= _frames[_frames.size() - ENTRIES]) {
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// Time is after last frame.
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x = _frames[_frames.size() + PREV_X];
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y = _frames[_frames.size() + PREV_Y];
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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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x = _frames[frame + PREV_X];
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y = _frames[frame + PREV_Y];
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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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x = x + (_frames[frame + X] - x) * percent;
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y = y + (_frames[frame + Y] - y) * percent;
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}
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if (pose == MixPose_Setup) {
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bone._shearX = bone._data._shearX + x * alpha;
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bone._shearY = bone._data._shearY + y * alpha;
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} else {
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bone._shearX += (bone._data._shearX + x - bone._shearX) * alpha;
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bone._shearY += (bone._data._shearY + y - bone._shearY) * alpha;
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}
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}
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int ShearTimeline::getPropertyId() {
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return ((int) TimelineType_Shear << 24) + _boneIndex;
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}
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