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297 lines
12 KiB
297 lines
12 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/DeformTimeline.h>
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#include <spine/Event.h>
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#include <spine/Skeleton.h>
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#include <spine/VertexAttachment.h>
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#include <spine/Animation.h>
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#include <spine/Bone.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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using namespace spine;
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RTTI_IMPL(DeformTimeline, CurveTimeline)
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DeformTimeline::DeformTimeline(int frameCount) : CurveTimeline(frameCount), _slotIndex(0), _attachment(NULL) {
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_frames.ensureCapacity(frameCount);
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_frameVertices.ensureCapacity(frameCount);
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_frames.setSize(frameCount, 0);
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for (int i = 0; i < frameCount; ++i) {
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Vector<float> vec;
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_frameVertices.add(vec);
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}
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}
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void DeformTimeline::apply(Skeleton &skeleton, float lastTime, float time, Vector<Event *> *pEvents, float alpha,
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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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Slot *slotP = skeleton._slots[_slotIndex];
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Slot &slot = *slotP;
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if (!slot._bone.isActive()) return;
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Attachment *slotAttachment = slot.getAttachment();
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if (slotAttachment == NULL || !slotAttachment->getRTTI().instanceOf(VertexAttachment::rtti)) {
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return;
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}
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VertexAttachment *attachment = static_cast<VertexAttachment *>(slotAttachment);
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if (attachment->_deformAttachment != _attachment) {
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return;
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}
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Vector<float> &deformArray = slot._deform;
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if (deformArray.size() == 0) {
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blend = MixBlend_Setup;
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}
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Vector<Vector<float> > &frameVertices = _frameVertices;
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size_t vertexCount = frameVertices[0].size();
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Vector<float> &frames = _frames;
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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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deformArray.clear();
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return;
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case MixBlend_First: {
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if (alpha == 1) {
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deformArray.clear();
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return;
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}
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deformArray.setSize(vertexCount, 0);
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Vector<float> &deformInner = deformArray;
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if (attachment->getBones().size() == 0) {
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// Unweighted vertex positions.
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Vector<float> &setupVertices = attachment->getVertices();
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for (size_t i = 0; i < vertexCount; i++)
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deformInner[i] += (setupVertices[i] - deformInner[i]) * alpha;
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} else {
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// Weighted deform offsets.
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alpha = 1 - alpha;
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for (size_t i = 0; i < vertexCount; i++)
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deformInner[i] *= alpha;
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}
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}
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case MixBlend_Replace:
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case MixBlend_Add:
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return;
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}
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}
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deformArray.setSize(vertexCount, 0);
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Vector<float> &deform = deformArray;
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if (time >= frames[frames.size() - 1]) { // Time is after last frame.
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Vector<float> &lastVertices = frameVertices[frames.size() - 1];
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if (alpha == 1) {
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if (blend == MixBlend_Add) {
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VertexAttachment *vertexAttachment = static_cast<VertexAttachment *>(slotAttachment);
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if (vertexAttachment->getBones().size() == 0) {
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// Unweighted vertex positions, no alpha.
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Vector<float> &setupVertices = vertexAttachment->getVertices();
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for (size_t i = 0; i < vertexCount; i++)
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deform[i] += lastVertices[i] - setupVertices[i];
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} else {
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// Weighted deform offsets, no alpha.
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for (size_t i = 0; i < vertexCount; i++)
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deform[i] += lastVertices[i];
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}
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} else {
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// Vertex positions or deform offsets, no alpha.
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memcpy(deform.buffer(), lastVertices.buffer(), vertexCount * sizeof(float));
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}
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} else {
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switch (blend) {
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case MixBlend_Setup: {
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VertexAttachment *vertexAttachment = static_cast<VertexAttachment *>(slotAttachment);
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if (vertexAttachment->getBones().size() == 0) {
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// Unweighted vertex positions, with alpha.
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Vector<float> &setupVertices = vertexAttachment->getVertices();
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for (size_t i = 0; i < vertexCount; i++) {
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float setup = setupVertices[i];
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deform[i] = setup + (lastVertices[i] - setup) * alpha;
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}
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} else {
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// Weighted deform offsets, with alpha.
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for (size_t i = 0; i < vertexCount; i++)
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deform[i] = lastVertices[i] * alpha;
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}
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break;
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}
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case MixBlend_First:
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case MixBlend_Replace:
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// Vertex positions or deform offsets, with alpha.
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for (size_t i = 0; i < vertexCount; i++)
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deform[i] += (lastVertices[i] - deform[i]) * alpha;
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break;
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case MixBlend_Add:
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VertexAttachment *vertexAttachment = static_cast<VertexAttachment *>(slotAttachment);
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if (vertexAttachment->getBones().size() == 0) {
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// Unweighted vertex positions, no alpha.
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Vector<float> &setupVertices = vertexAttachment->getVertices();
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for (size_t i = 0; i < vertexCount; i++)
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deform[i] += (lastVertices[i] - setupVertices[i]) * alpha;
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} else {
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// Weighted deform offsets, alpha.
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for (size_t i = 0; i < vertexCount; i++)
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deform[i] += lastVertices[i] * alpha;
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}
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}
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}
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return;
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}
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// Interpolate between the previous frame and the current frame.
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int frame = Animation::binarySearch(frames, time);
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Vector<float> &prevVertices = frameVertices[frame - 1];
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Vector<float> &nextVertices = frameVertices[frame];
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float frameTime = frames[frame];
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float percent = getCurvePercent(frame - 1, 1 - (time - frameTime) / (frames[frame - 1] - frameTime));
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if (alpha == 1) {
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if (blend == MixBlend_Add) {
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VertexAttachment *vertexAttachment = static_cast<VertexAttachment *>(slotAttachment);
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if (vertexAttachment->getBones().size() == 0) {
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// Unweighted vertex positions, no alpha.
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Vector<float> &setupVertices = vertexAttachment->getVertices();
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for (size_t i = 0; i < vertexCount; i++) {
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float prev = prevVertices[i];
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deform[i] += prev + (nextVertices[i] - prev) * percent - setupVertices[i];
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}
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} else {
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// Weighted deform offsets, no alpha.
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for (size_t i = 0; i < vertexCount; i++) {
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float prev = prevVertices[i];
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deform[i] += prev + (nextVertices[i] - prev) * percent;
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}
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}
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} else {
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// Vertex positions or deform offsets, no alpha.
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for (size_t i = 0; i < vertexCount; i++) {
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float prev = prevVertices[i];
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deform[i] = prev + (nextVertices[i] - prev) * percent;
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}
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}
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} else {
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switch (blend) {
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case MixBlend_Setup: {
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VertexAttachment *vertexAttachment = static_cast<VertexAttachment *>(slotAttachment);
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if (vertexAttachment->getBones().size() == 0) {
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// Unweighted vertex positions, with alpha.
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Vector<float> &setupVertices = vertexAttachment->getVertices();
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for (size_t i = 0; i < vertexCount; i++) {
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float prev = prevVertices[i], setup = setupVertices[i];
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deform[i] = setup + (prev + (nextVertices[i] - prev) * percent - setup) * alpha;
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}
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} else {
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// Weighted deform offsets, with alpha.
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for (size_t i = 0; i < vertexCount; i++) {
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float prev = prevVertices[i];
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deform[i] = (prev + (nextVertices[i] - prev) * percent) * alpha;
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}
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}
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break;
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}
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case MixBlend_First:
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case MixBlend_Replace:
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// Vertex positions or deform offsets, with alpha.
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for (size_t i = 0; i < vertexCount; i++) {
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float prev = prevVertices[i];
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deform[i] += (prev + (nextVertices[i] - prev) * percent - deform[i]) * alpha;
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}
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break;
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case MixBlend_Add:
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VertexAttachment *vertexAttachment = static_cast<VertexAttachment *>(slotAttachment);
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if (vertexAttachment->getBones().size() == 0) {
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// Unweighted vertex positions, with alpha.
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Vector<float> &setupVertices = vertexAttachment->getVertices();
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for (size_t i = 0; i < vertexCount; i++) {
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float prev = prevVertices[i];
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deform[i] += (prev + (nextVertices[i] - prev) * percent - setupVertices[i]) * alpha;
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}
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} else {
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// Weighted deform offsets, with alpha.
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for (size_t i = 0; i < vertexCount; i++) {
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float prev = prevVertices[i];
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deform[i] += (prev + (nextVertices[i] - prev) * percent) * alpha;
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}
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}
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}
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}
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}
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int DeformTimeline::getPropertyId() {
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assert(_attachment != NULL);
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return ((int)TimelineType_Deform << 24) + _attachment->_id + _slotIndex;
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}
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void DeformTimeline::setFrame(int frameIndex, float time, Vector<float> &vertices) {
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_frames[frameIndex] = time;
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_frameVertices[frameIndex].clear();
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_frameVertices[frameIndex].addAll(vertices);
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}
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int DeformTimeline::getSlotIndex() {
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return _slotIndex;
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}
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void DeformTimeline::setSlotIndex(int inValue) {
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_slotIndex = inValue;
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}
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Vector<float> &DeformTimeline::getFrames() {
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return _frames;
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}
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Vector<Vector<float> > &DeformTimeline::getVertices() {
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return _frameVertices;
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}
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VertexAttachment *DeformTimeline::getAttachment() {
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return _attachment;
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}
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void DeformTimeline::setAttachment(VertexAttachment *inValue) {
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_attachment = inValue;
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}
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