mirror of https://github.com/axmolengine/axmol.git
499 lines
17 KiB
C++
499 lines
17 KiB
C++
/*******************************************************************************
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* Copyright (c) 2013, Esoteric Software
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY 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 THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY 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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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 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 THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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******************************************************************************/
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#include <spine/Animation.h>
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#include <math.h>
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#include <spine/extension.h>
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namespace cocos2d { namespace extension {
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Animation* Animation_create (const char* name, int timelineCount) {
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Animation* self = NEW(Animation);
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MALLOC_STR(self->name, name);
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self->timelineCount = timelineCount;
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self->timelines = MALLOC(Timeline*, timelineCount);
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return self;
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}
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void Animation_dispose (Animation* self) {
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int i;
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for (i = 0; i < self->timelineCount; ++i)
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Timeline_dispose(self->timelines[i]);
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FREE(self->timelines);
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FREE(self->name);
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FREE(self);
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}
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void Animation_apply (const Animation* self, Skeleton* skeleton, float time, int/*bool*/loop) {
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int i, n = self->timelineCount;
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#ifdef __STDC_VERSION__
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if (loop && self->duration) time = fmodf(time, self->duration);
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#else
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if (loop && self->duration) time = (float)fmod(time, self->duration);
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#endif
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for (i = 0; i < n; ++i)
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Timeline_apply(self->timelines[i], skeleton, time, 1);
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}
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void Animation_mix (const Animation* self, Skeleton* skeleton, float time, int/*bool*/loop, float alpha) {
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int i, n = self->timelineCount;
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#ifdef __STDC_VERSION__
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if (loop && self->duration) time = fmodf(time, self->duration);
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#else
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if (loop && self->duration) time = (float)fmod(time, self->duration);
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#endif
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for (i = 0; i < n; ++i)
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Timeline_apply(self->timelines[i], skeleton, time, alpha);
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}
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/**/
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typedef struct _TimelineVtable {
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void (*apply) (const Timeline* self, Skeleton* skeleton, float time, float alpha);
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void (*dispose) (Timeline* self);
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} _TimelineVtable;
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void _Timeline_init (Timeline* self, /**/
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void (*dispose) (Timeline* self), /**/
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void (*apply) (const Timeline* self, Skeleton* skeleton, float time, float alpha)) {
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CONST_CAST(_TimelineVtable*, self->vtable) = NEW(_TimelineVtable);
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VTABLE(Timeline, self) ->dispose = dispose;
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VTABLE(Timeline, self) ->apply = apply;
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}
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void _Timeline_deinit (Timeline* self) {
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FREE(self->vtable);
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}
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void Timeline_dispose (Timeline* self) {
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VTABLE(Timeline, self) ->dispose(self);
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}
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void Timeline_apply (const Timeline* self, Skeleton* skeleton, float time, float alpha) {
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VTABLE(Timeline, self) ->apply(self, skeleton, time, alpha);
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}
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/**/
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static const float CURVE_LINEAR = 0;
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static const float CURVE_STEPPED = -1;
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static const int CURVE_SEGMENTS = 10;
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void _CurveTimeline_init (CurveTimeline* self, int frameCount, /**/
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void (*dispose) (Timeline* self), /**/
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void (*apply) (const Timeline* self, Skeleton* skeleton, float time, float alpha)) {
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_Timeline_init(SUPER(self), dispose, apply);
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self->curves = CALLOC(float, (frameCount - 1) * 6);
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}
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void _CurveTimeline_deinit (CurveTimeline* self) {
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_Timeline_deinit(SUPER(self));
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FREE(self->curves);
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}
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void CurveTimeline_setLinear (CurveTimeline* self, int frameIndex) {
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self->curves[frameIndex * 6] = CURVE_LINEAR;
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}
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void CurveTimeline_setStepped (CurveTimeline* self, int frameIndex) {
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self->curves[frameIndex * 6] = CURVE_STEPPED;
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}
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void CurveTimeline_setCurve (CurveTimeline* self, int frameIndex, float cx1, float cy1, float cx2, float cy2) {
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float subdiv_step = 1.0f / CURVE_SEGMENTS;
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float subdiv_step2 = subdiv_step * subdiv_step;
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float subdiv_step3 = subdiv_step2 * subdiv_step;
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float pre1 = 3 * subdiv_step;
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float pre2 = 3 * subdiv_step2;
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float pre4 = 6 * subdiv_step2;
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float pre5 = 6 * subdiv_step3;
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float tmp1x = -cx1 * 2 + cx2;
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float tmp1y = -cy1 * 2 + cy2;
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float tmp2x = (cx1 - cx2) * 3 + 1;
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float tmp2y = (cy1 - cy2) * 3 + 1;
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int i = frameIndex * 6;
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self->curves[i] = cx1 * pre1 + tmp1x * pre2 + tmp2x * subdiv_step3;
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self->curves[i + 1] = cy1 * pre1 + tmp1y * pre2 + tmp2y * subdiv_step3;
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self->curves[i + 2] = tmp1x * pre4 + tmp2x * pre5;
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self->curves[i + 3] = tmp1y * pre4 + tmp2y * pre5;
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self->curves[i + 4] = tmp2x * pre5;
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self->curves[i + 5] = tmp2y * pre5;
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}
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float CurveTimeline_getCurvePercent (const CurveTimeline* self, int frameIndex, float percent) {
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float dfy;
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float ddfx;
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float ddfy;
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float dddfx;
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float dddfy;
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float x, y;
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int i;
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int curveIndex = frameIndex * 6;
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float dfx = self->curves[curveIndex];
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if (dfx == CURVE_LINEAR) return percent;
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if (dfx == CURVE_STEPPED) return 0;
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dfy = self->curves[curveIndex + 1];
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ddfx = self->curves[curveIndex + 2];
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ddfy = self->curves[curveIndex + 3];
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dddfx = self->curves[curveIndex + 4];
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dddfy = self->curves[curveIndex + 5];
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x = dfx, y = dfy;
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i = CURVE_SEGMENTS - 2;
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while (1) {
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if (x >= percent) {
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float lastX = x - dfx;
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float lastY = y - dfy;
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return lastY + (y - lastY) * (percent - lastX) / (x - lastX);
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}
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if (i == 0) break;
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i--;
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dfx += ddfx;
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dfy += ddfy;
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ddfx += dddfx;
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ddfy += dddfy;
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x += dfx;
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y += dfy;
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}
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return y + (1 - y) * (percent - x) / (1 - x); /* Last point is 1,1. */
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}
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/* @param target After the first and before the last entry. */
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static int binarySearch (float *values, int valuesLength, float target, int step) {
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int low = 0, current;
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int high = valuesLength / step - 2;
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if (high == 0) return step;
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current = high >> 1;
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while (1) {
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if (values[(current + 1) * step] <= target)
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low = current + 1;
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else
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high = current;
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if (low == high) return (low + 1) * step;
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current = (low + high) >> 1;
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}
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return 0;
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}
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/*static int linearSearch (float *values, int valuesLength, float target, int step) {
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int i, last = valuesLength - step;
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for (i = 0; i <= last; i += step) {
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if (values[i] <= target) continue;
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return i;
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}
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return -1;
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}*/
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/**/
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void _BaseTimeline_dispose (Timeline* timeline) {
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struct BaseTimeline* self = SUB_CAST(struct BaseTimeline, timeline);
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_CurveTimeline_deinit(SUPER(self));
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FREE(self->frames);
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FREE(self);
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}
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/* Many timelines have structure identical to struct BaseTimeline and extend CurveTimeline. **/
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struct BaseTimeline* _BaseTimeline_create (int frameCount, int frameSize, /**/
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void (*apply) (const Timeline* self, Skeleton* skeleton, float time, float alpha)) {
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struct BaseTimeline* self = NEW(struct BaseTimeline);
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_CurveTimeline_init(SUPER(self), frameCount, _BaseTimeline_dispose, apply);
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CONST_CAST(int, self->framesLength) = frameCount * frameSize;
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CONST_CAST(float*, self->frames) = CALLOC(float, self->framesLength);
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return self;
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}
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/**/
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static const int ROTATE_LAST_FRAME_TIME = -2;
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static const int ROTATE_FRAME_VALUE = 1;
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void _RotateTimeline_apply (const Timeline* timeline, Skeleton* skeleton, float time, float alpha) {
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Bone *bone;
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int frameIndex;
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float lastFrameValue, frameTime, percent, amount;
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RotateTimeline* self = SUB_CAST(RotateTimeline, timeline);
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if (time < self->frames[0]) return; /* Time is before first frame. */
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bone = skeleton->bones[self->boneIndex];
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if (time >= self->frames[self->framesLength - 2]) { /* Time is after last frame. */
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float amount = bone->data->rotation + self->frames[self->framesLength - 1] - bone->rotation;
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while (amount > 180)
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amount -= 360;
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while (amount < -180)
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amount += 360;
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bone->rotation += amount * alpha;
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return;
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}
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/* Interpolate between the last frame and the current frame. */
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frameIndex = binarySearch(self->frames, self->framesLength, time, 2);
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lastFrameValue = self->frames[frameIndex - 1];
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frameTime = self->frames[frameIndex];
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percent = 1 - (time - frameTime) / (self->frames[frameIndex + ROTATE_LAST_FRAME_TIME] - frameTime);
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percent = CurveTimeline_getCurvePercent(SUPER(self), frameIndex / 2 - 1, percent < 0 ? 0 : (percent > 1 ? 1 : percent));
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amount = self->frames[frameIndex + ROTATE_FRAME_VALUE] - lastFrameValue;
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while (amount > 180)
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amount -= 360;
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while (amount < -180)
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amount += 360;
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amount = bone->data->rotation + (lastFrameValue + amount * percent) - bone->rotation;
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while (amount > 180)
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amount -= 360;
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while (amount < -180)
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amount += 360;
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bone->rotation += amount * alpha;
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}
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RotateTimeline* RotateTimeline_create (int frameCount) {
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return _BaseTimeline_create(frameCount, 2, _RotateTimeline_apply);
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}
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void RotateTimeline_setFrame (RotateTimeline* self, int frameIndex, float time, float angle) {
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frameIndex *= 2;
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self->frames[frameIndex] = time;
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self->frames[frameIndex + 1] = angle;
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}
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/**/
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static const int TRANSLATE_LAST_FRAME_TIME = -3;
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static const int TRANSLATE_FRAME_X = 1;
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static const int TRANSLATE_FRAME_Y = 2;
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void _TranslateTimeline_apply (const Timeline* timeline, Skeleton* skeleton, float time, float alpha) {
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Bone *bone;
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int frameIndex;
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float lastFrameX, lastFrameY, frameTime, percent;
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TranslateTimeline* self = SUB_CAST(TranslateTimeline, timeline);
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if (time < self->frames[0]) return; /* Time is before first frame. */
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bone = skeleton->bones[self->boneIndex];
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if (time >= self->frames[self->framesLength - 3]) { /* Time is after last frame. */
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bone->x += (bone->data->x + self->frames[self->framesLength - 2] - bone->x) * alpha;
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bone->y += (bone->data->y + self->frames[self->framesLength - 1] - bone->y) * alpha;
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return;
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}
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/* Interpolate between the last frame and the current frame. */
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frameIndex = binarySearch(self->frames, self->framesLength, time, 3);
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lastFrameX = self->frames[frameIndex - 2];
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lastFrameY = self->frames[frameIndex - 1];
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frameTime = self->frames[frameIndex];
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percent = 1 - (time - frameTime) / (self->frames[frameIndex + TRANSLATE_LAST_FRAME_TIME] - frameTime);
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percent = CurveTimeline_getCurvePercent(SUPER(self), frameIndex / 3 - 1, percent < 0 ? 0 : (percent > 1 ? 1 : percent));
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bone->x += (bone->data->x + lastFrameX + (self->frames[frameIndex + TRANSLATE_FRAME_X] - lastFrameX) * percent - bone->x)
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* alpha;
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bone->y += (bone->data->y + lastFrameY + (self->frames[frameIndex + TRANSLATE_FRAME_Y] - lastFrameY) * percent - bone->y)
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* alpha;
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}
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TranslateTimeline* TranslateTimeline_create (int frameCount) {
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return _BaseTimeline_create(frameCount, 3, _TranslateTimeline_apply);
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}
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void TranslateTimeline_setFrame (TranslateTimeline* self, int frameIndex, float time, float x, float y) {
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frameIndex *= 3;
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self->frames[frameIndex] = time;
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self->frames[frameIndex + 1] = x;
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self->frames[frameIndex + 2] = y;
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}
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/**/
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void _ScaleTimeline_apply (const Timeline* timeline, Skeleton* skeleton, float time, float alpha) {
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Bone *bone;
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int frameIndex;
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float lastFrameX, lastFrameY, frameTime, percent;
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ScaleTimeline* self = SUB_CAST(ScaleTimeline, timeline);
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if (time < self->frames[0]) return; /* Time is before first frame. */
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bone = skeleton->bones[self->boneIndex];
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if (time >= self->frames[self->framesLength - 3]) { /* Time is after last frame. */
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bone->scaleX += (bone->data->scaleX - 1 + self->frames[self->framesLength - 2] - bone->scaleX) * alpha;
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bone->scaleY += (bone->data->scaleY - 1 + self->frames[self->framesLength - 1] - bone->scaleY) * alpha;
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return;
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}
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/* Interpolate between the last frame and the current frame. */
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frameIndex = binarySearch(self->frames, self->framesLength, time, 3);
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lastFrameX = self->frames[frameIndex - 2];
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lastFrameY = self->frames[frameIndex - 1];
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frameTime = self->frames[frameIndex];
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percent = 1 - (time - frameTime) / (self->frames[frameIndex + TRANSLATE_LAST_FRAME_TIME] - frameTime);
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percent = CurveTimeline_getCurvePercent(SUPER(self), frameIndex / 3 - 1, percent < 0 ? 0 : (percent > 1 ? 1 : percent));
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bone->scaleX += (bone->data->scaleX - 1 + lastFrameX + (self->frames[frameIndex + TRANSLATE_FRAME_X] - lastFrameX) * percent
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- bone->scaleX) * alpha;
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bone->scaleY += (bone->data->scaleY - 1 + lastFrameY + (self->frames[frameIndex + TRANSLATE_FRAME_Y] - lastFrameY) * percent
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- bone->scaleY) * alpha;
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}
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ScaleTimeline* ScaleTimeline_create (int frameCount) {
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return _BaseTimeline_create(frameCount, 3, _ScaleTimeline_apply);
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}
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void ScaleTimeline_setFrame (ScaleTimeline* self, int frameIndex, float time, float x, float y) {
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TranslateTimeline_setFrame(self, frameIndex, time, x, y);
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}
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/**/
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static const int COLOR_LAST_FRAME_TIME = -5;
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static const int COLOR_FRAME_R = 1;
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static const int COLOR_FRAME_G = 2;
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static const int COLOR_FRAME_B = 3;
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static const int COLOR_FRAME_A = 4;
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void _ColorTimeline_apply (const Timeline* timeline, Skeleton* skeleton, float time, float alpha) {
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Slot *slot;
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int frameIndex;
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float lastFrameR, lastFrameG, lastFrameB, lastFrameA, percent, frameTime;
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float r, g, b, a;
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ColorTimeline* self = (ColorTimeline*)timeline;
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if (time < self->frames[0]) return; /* Time is before first frame. */
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slot = skeleton->slots[self->slotIndex];
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if (time >= self->frames[self->framesLength - 5]) { /* Time is after last frame. */
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int i = self->framesLength - 1;
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slot->r = self->frames[i - 3];
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slot->g = self->frames[i - 2];
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slot->b = self->frames[i - 1];
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slot->a = self->frames[i];
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return;
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}
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/* Interpolate between the last frame and the current frame. */
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frameIndex = binarySearch(self->frames, self->framesLength, time, 5);
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lastFrameR = self->frames[frameIndex - 4];
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lastFrameG = self->frames[frameIndex - 3];
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lastFrameB = self->frames[frameIndex - 2];
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lastFrameA = self->frames[frameIndex - 1];
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frameTime = self->frames[frameIndex];
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percent = 1 - (time - frameTime) / (self->frames[frameIndex + COLOR_LAST_FRAME_TIME] - frameTime);
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percent = CurveTimeline_getCurvePercent(SUPER(self), frameIndex / 5 - 1, percent < 0 ? 0 : (percent > 1 ? 1 : percent));
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r = lastFrameR + (self->frames[frameIndex + COLOR_FRAME_R] - lastFrameR) * percent;
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g = lastFrameG + (self->frames[frameIndex + COLOR_FRAME_G] - lastFrameG) * percent;
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b = lastFrameB + (self->frames[frameIndex + COLOR_FRAME_B] - lastFrameB) * percent;
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a = lastFrameA + (self->frames[frameIndex + COLOR_FRAME_A] - lastFrameA) * percent;
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if (alpha < 1) {
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slot->r += (r - slot->r) * alpha;
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slot->g += (g - slot->g) * alpha;
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slot->b += (b - slot->b) * alpha;
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slot->a += (a - slot->a) * alpha;
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} else {
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slot->r = r;
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slot->g = g;
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slot->b = b;
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slot->a = a;
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}
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}
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ColorTimeline* ColorTimeline_create (int frameCount) {
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return (ColorTimeline*)_BaseTimeline_create(frameCount, 5, _ColorTimeline_apply);
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}
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void ColorTimeline_setFrame (ColorTimeline* self, int frameIndex, float time, float r, float g, float b, float a) {
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frameIndex *= 5;
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self->frames[frameIndex] = time;
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self->frames[frameIndex + 1] = r;
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self->frames[frameIndex + 2] = g;
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self->frames[frameIndex + 3] = b;
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self->frames[frameIndex + 4] = a;
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}
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/**/
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void _AttachmentTimeline_apply (const Timeline* timeline, Skeleton* skeleton, float time, float alpha) {
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int frameIndex;
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const char* attachmentName;
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AttachmentTimeline* self = (AttachmentTimeline*)timeline;
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|
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if (time < self->frames[0]) return; /* Time is before first frame. */
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|
|
|
if (time >= self->frames[self->framesLength - 1]) /* Time is after last frame. */
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|
frameIndex = self->framesLength - 1;
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else
|
|
frameIndex = binarySearch(self->frames, self->framesLength, time, 1) - 1;
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|
|
|
attachmentName = self->attachmentNames[frameIndex];
|
|
Slot_setAttachment(skeleton->slots[self->slotIndex],
|
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attachmentName ? Skeleton_getAttachmentForSlotIndex(skeleton, self->slotIndex, attachmentName) : 0);
|
|
}
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|
|
|
void _AttachmentTimeline_dispose (Timeline* timeline) {
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|
AttachmentTimeline* self;
|
|
int i;
|
|
|
|
_Timeline_deinit(timeline);
|
|
self = (AttachmentTimeline*)timeline;
|
|
|
|
for (i = 0; i < self->framesLength; ++i)
|
|
FREE(self->attachmentNames[i]);
|
|
FREE(self->attachmentNames);
|
|
FREE(self->frames);
|
|
FREE(self);
|
|
}
|
|
|
|
AttachmentTimeline* AttachmentTimeline_create (int frameCount) {
|
|
AttachmentTimeline* self = NEW(AttachmentTimeline);
|
|
_Timeline_init(SUPER(self), _AttachmentTimeline_dispose, _AttachmentTimeline_apply);
|
|
|
|
CONST_CAST(char**, self->attachmentNames) = CALLOC(char*, frameCount);
|
|
CONST_CAST(int, self->framesLength) = frameCount;
|
|
CONST_CAST(float*, self->frames) = CALLOC(float, frameCount);
|
|
|
|
return self;
|
|
}
|
|
|
|
void AttachmentTimeline_setFrame (AttachmentTimeline* self, int frameIndex, float time, const char* attachmentName) {
|
|
self->frames[frameIndex] = time;
|
|
FREE(self->attachmentNames[frameIndex]);
|
|
if (attachmentName)
|
|
MALLOC_STR(self->attachmentNames[frameIndex], attachmentName);
|
|
else
|
|
self->attachmentNames[frameIndex] = 0;
|
|
}
|
|
|
|
}} // namespace cocos2d { namespace extension {
|