mirror of
https://github.com/EsotericSoftware/spine-runtimes.git
synced 2026-02-06 15:24:55 +08:00
621 lines
20 KiB
Java
621 lines
20 KiB
Java
/******************************************************************************
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* Spine Runtime Software License - Version 1.1
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*
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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 in whole or in part, with
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* or without modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. A Spine Single User License, Professional License, or Education License must
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* be purchased from Esoteric Software and the license must remain valid:
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* http://esotericsoftware.com/
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* 2. Redistributions of source code must retain this license, which is the
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* above copyright notice, this declaration of conditions and the following
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* disclaimer.
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* 3. Redistributions in binary form must reproduce this license, which is the
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* above copyright notice, this declaration of conditions and the following
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* disclaimer, in the documentation and/or other materials provided with the
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* 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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package com.esotericsoftware.spine;
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import com.badlogic.gdx.graphics.Color;
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import com.badlogic.gdx.math.MathUtils;
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import com.badlogic.gdx.utils.Array;
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public class Animation {
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final String name;
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private final Array<Timeline> timelines;
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private float duration;
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public Animation (String name, Array<Timeline> timelines, float duration) {
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if (name == null) throw new IllegalArgumentException("name cannot be null.");
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if (timelines == null) throw new IllegalArgumentException("timelines cannot be null.");
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this.name = name;
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this.timelines = timelines;
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this.duration = duration;
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}
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public Array<Timeline> getTimelines () {
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return timelines;
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}
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/** Returns the duration of the animation in seconds. */
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public float getDuration () {
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return duration;
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}
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public void setDuration (float duration) {
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this.duration = duration;
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}
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/** @deprecated */
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public void apply (Skeleton skeleton, float time, boolean loop) {
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apply(skeleton, time, time, loop, null);
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}
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/** Poses the skeleton at the specified time for this animation.
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* @param lastTime The last time the animation was applied. Can be equal to time if events shouldn't be fired.
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* @param events Any triggered events are added. May be null if lastTime is known to not cause any events to trigger. */
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public void apply (Skeleton skeleton, float lastTime, float time, boolean loop, Array<Event> events) {
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if (skeleton == null) throw new IllegalArgumentException("skeleton cannot be null.");
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if (loop && duration != 0) {
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time %= duration;
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lastTime %= duration;
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}
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Array<Timeline> timelines = this.timelines;
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for (int i = 0, n = timelines.size; i < n; i++)
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timelines.get(i).apply(skeleton, lastTime, time, events, 1);
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}
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/** @deprecated */
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public void mix (Skeleton skeleton, float time, boolean loop, float alpha) {
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mix(skeleton, time, time, loop, null, alpha);
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}
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/** Poses the skeleton at the specified time for this animation mixed with the current pose.
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* @param lastTime The last time the animation was applied. Can be equal to time if events shouldn't be fired.
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* @param events Any triggered events are added. May be null if lastTime is known to not cause any events to trigger.
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* @param alpha The amount of this animation that affects the current pose. */
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public void mix (Skeleton skeleton, float lastTime, float time, boolean loop, Array<Event> events, float alpha) {
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if (skeleton == null) throw new IllegalArgumentException("skeleton cannot be null.");
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if (loop && duration != 0) {
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lastTime %= duration;
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time %= duration;
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}
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Array<Timeline> timelines = this.timelines;
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for (int i = 0, n = timelines.size; i < n; i++)
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timelines.get(i).apply(skeleton, lastTime, time, events, alpha);
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}
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public String getName () {
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return name;
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}
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public String toString () {
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return name;
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}
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/** @param target After the first and before the last value.
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* @return index of first value greater than the target. */
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static int binarySearch (float[] values, float target, int step) {
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int low = 0;
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int high = values.length / step - 2;
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if (high == 0) return step;
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int current = high >>> 1;
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while (true) {
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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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}
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static int linearSearch (float[] values, float target, int step) {
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for (int i = 0, last = values.length - step; i <= last; i += step)
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if (values[i] > target) return i;
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return -1;
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}
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static public interface Timeline {
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/** Sets the value(s) for the specified time. */
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public void apply (Skeleton skeleton, float lastTime, float time, Array<Event> events, float alpha);
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}
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/** Base class for frames that use an interpolation bezier curve. */
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abstract static public class CurveTimeline implements Timeline {
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static public final float LINEAR = 0;
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static public final float STEPPED = -1;
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static public final float BEZIER = -2;
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static private final int BEZIER_SEGMENTS = 10;
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private final float[] curves; // dfx, dfy, ddfx, ddfy, dddfx, dddfy, ...
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public CurveTimeline (int frameCount) {
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curves = new float[(frameCount - 1) * 6];
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}
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public int getFrameCount () {
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return curves.length / 6 + 1;
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}
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public void setLinear (int frameIndex) {
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curves[frameIndex * 6] = LINEAR;
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}
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public void setStepped (int frameIndex) {
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curves[frameIndex * 6] = STEPPED;
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}
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public float getCurveType (int frameIndex) {
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int index = frameIndex * 6;
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if (index == curves.length) return LINEAR;
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float type = curves[index];
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if (type == LINEAR) return LINEAR;
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if (type == STEPPED) return STEPPED;
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return BEZIER;
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}
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/** Sets the control handle positions for an interpolation bezier curve used to transition from this keyframe to the next.
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* cx1 and cx2 are from 0 to 1, representing the percent of time between the two keyframes. cy1 and cy2 are the percent of
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* the difference between the keyframe's values. */
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public void setCurve (int frameIndex, float cx1, float cy1, float cx2, float cy2) {
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float subdiv_step = 1f / BEZIER_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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float[] curves = this.curves;
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curves[i] = cx1 * pre1 + tmp1x * pre2 + tmp2x * subdiv_step3;
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curves[i + 1] = cy1 * pre1 + tmp1y * pre2 + tmp2y * subdiv_step3;
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curves[i + 2] = tmp1x * pre4 + tmp2x * pre5;
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curves[i + 3] = tmp1y * pre4 + tmp2y * pre5;
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curves[i + 4] = tmp2x * pre5;
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curves[i + 5] = tmp2y * pre5;
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}
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public float getCurvePercent (int frameIndex, float percent) {
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int curveIndex = frameIndex * 6;
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float[] curves = this.curves;
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float dfx = curves[curveIndex];
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if (dfx == LINEAR) return percent;
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if (dfx == STEPPED) return 0;
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float dfy = curves[curveIndex + 1];
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float ddfx = curves[curveIndex + 2];
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float ddfy = curves[curveIndex + 3];
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float dddfx = curves[curveIndex + 4];
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float dddfy = curves[curveIndex + 5];
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float x = dfx, y = dfy;
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int i = BEZIER_SEGMENTS - 2;
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while (true) {
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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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}
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static public class RotateTimeline extends CurveTimeline {
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static private final int LAST_FRAME_TIME = -2;
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static private final int FRAME_VALUE = 1;
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int boneIndex;
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private final float[] frames; // time, angle, ...
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public RotateTimeline (int frameCount) {
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super(frameCount);
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frames = new float[frameCount * 2];
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}
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public void setBoneIndex (int boneIndex) {
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this.boneIndex = boneIndex;
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}
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public int getBoneIndex () {
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return boneIndex;
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}
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public float[] getFrames () {
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return frames;
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}
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/** Sets the time and angle of the specified keyframe. */
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public void setFrame (int frameIndex, float time, float angle) {
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frameIndex *= 2;
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frames[frameIndex] = time;
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frames[frameIndex + 1] = angle;
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}
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public void apply (Skeleton skeleton, float lastTime, float time, Array<Event> events, float alpha) {
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float[] frames = this.frames;
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if (time < frames[0]) return; // Time is before first frame.
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Bone bone = skeleton.bones.get(boneIndex);
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if (time >= frames[frames.length - 2]) { // Time is after last frame.
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float amount = bone.data.rotation + frames[frames.length - 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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int frameIndex = binarySearch(frames, time, 2);
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float lastFrameValue = frames[frameIndex - 1];
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float frameTime = frames[frameIndex];
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float percent = MathUtils.clamp(1 - (time - frameTime) / (frames[frameIndex + LAST_FRAME_TIME] - frameTime), 0, 1);
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percent = getCurvePercent(frameIndex / 2 - 1, percent);
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float amount = frames[frameIndex + 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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}
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static public class TranslateTimeline extends CurveTimeline {
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static final int LAST_FRAME_TIME = -3;
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static final int FRAME_X = 1;
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static final int FRAME_Y = 2;
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int boneIndex;
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final float[] frames; // time, x, y, ...
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public TranslateTimeline (int frameCount) {
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super(frameCount);
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frames = new float[frameCount * 3];
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}
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public void setBoneIndex (int boneIndex) {
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this.boneIndex = boneIndex;
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}
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public int getBoneIndex () {
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return boneIndex;
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}
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public float[] getFrames () {
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return frames;
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}
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/** Sets the time and value of the specified keyframe. */
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public void setFrame (int frameIndex, float time, float x, float y) {
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frameIndex *= 3;
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frames[frameIndex] = time;
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frames[frameIndex + 1] = x;
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frames[frameIndex + 2] = y;
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}
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public void apply (Skeleton skeleton, float lastTime, float time, Array<Event> events, float alpha) {
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float[] frames = this.frames;
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if (time < frames[0]) return; // Time is before first frame.
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Bone bone = skeleton.bones.get(boneIndex);
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if (time >= frames[frames.length - 3]) { // Time is after last frame.
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bone.x += (bone.data.x + frames[frames.length - 2] - bone.x) * alpha;
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bone.y += (bone.data.y + frames[frames.length - 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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int frameIndex = binarySearch(frames, time, 3);
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float lastFrameX = frames[frameIndex - 2];
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float lastFrameY = frames[frameIndex - 1];
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float frameTime = frames[frameIndex];
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float percent = MathUtils.clamp(1 - (time - frameTime) / (frames[frameIndex + LAST_FRAME_TIME] - frameTime), 0, 1);
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percent = getCurvePercent(frameIndex / 3 - 1, percent);
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bone.x += (bone.data.x + lastFrameX + (frames[frameIndex + FRAME_X] - lastFrameX) * percent - bone.x) * alpha;
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bone.y += (bone.data.y + lastFrameY + (frames[frameIndex + FRAME_Y] - lastFrameY) * percent - bone.y) * alpha;
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}
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}
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static public class ScaleTimeline extends TranslateTimeline {
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public ScaleTimeline (int frameCount) {
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super(frameCount);
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}
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public void apply (Skeleton skeleton, float lastTime, float time, Array<Event> events, float alpha) {
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float[] frames = this.frames;
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if (time < frames[0]) return; // Time is before first frame.
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Bone bone = skeleton.bones.get(boneIndex);
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if (time >= frames[frames.length - 3]) { // Time is after last frame.
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bone.scaleX += (bone.data.scaleX - 1 + frames[frames.length - 2] - bone.scaleX) * alpha;
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bone.scaleY += (bone.data.scaleY - 1 + frames[frames.length - 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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int frameIndex = binarySearch(frames, time, 3);
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float lastFrameX = frames[frameIndex - 2];
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float lastFrameY = frames[frameIndex - 1];
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float frameTime = frames[frameIndex];
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float percent = MathUtils.clamp(1 - (time - frameTime) / (frames[frameIndex + LAST_FRAME_TIME] - frameTime), 0, 1);
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percent = getCurvePercent(frameIndex / 3 - 1, percent);
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bone.scaleX += (bone.data.scaleX - 1 + lastFrameX + (frames[frameIndex + FRAME_X] - lastFrameX) * percent - bone.scaleX)
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* alpha;
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bone.scaleY += (bone.data.scaleY - 1 + lastFrameY + (frames[frameIndex + FRAME_Y] - lastFrameY) * percent - bone.scaleY)
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* alpha;
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}
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}
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static public class ColorTimeline extends CurveTimeline {
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static private final int LAST_FRAME_TIME = -5;
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static private final int FRAME_R = 1;
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static private final int FRAME_G = 2;
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static private final int FRAME_B = 3;
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static private final int FRAME_A = 4;
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int slotIndex;
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private final float[] frames; // time, r, g, b, a, ...
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public ColorTimeline (int frameCount) {
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super(frameCount);
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frames = new float[frameCount * 5];
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}
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public void setSlotIndex (int slotIndex) {
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this.slotIndex = slotIndex;
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}
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public int getSlotIndex () {
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return slotIndex;
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}
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public float[] getFrames () {
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return frames;
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}
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/** Sets the time and value of the specified keyframe. */
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public void setFrame (int frameIndex, float time, float r, float g, float b, float a) {
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frameIndex *= 5;
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frames[frameIndex] = time;
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frames[frameIndex + 1] = r;
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frames[frameIndex + 2] = g;
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frames[frameIndex + 3] = b;
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frames[frameIndex + 4] = a;
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}
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public void apply (Skeleton skeleton, float lastTime, float time, Array<Event> events, float alpha) {
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float[] frames = this.frames;
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if (time < frames[0]) return; // Time is before first frame.
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Color color = skeleton.slots.get(slotIndex).color;
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if (time >= frames[frames.length - 5]) { // Time is after last frame.
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int i = frames.length - 1;
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float r = frames[i - 3];
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float g = frames[i - 2];
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float b = frames[i - 1];
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float a = frames[i];
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color.set(r, g, b, a);
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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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int frameIndex = binarySearch(frames, time, 5);
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float lastFrameR = frames[frameIndex - 4];
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float lastFrameG = frames[frameIndex - 3];
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float lastFrameB = frames[frameIndex - 2];
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float lastFrameA = frames[frameIndex - 1];
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float frameTime = frames[frameIndex];
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float percent = MathUtils.clamp(1 - (time - frameTime) / (frames[frameIndex + LAST_FRAME_TIME] - frameTime), 0, 1);
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percent = getCurvePercent(frameIndex / 5 - 1, percent);
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float r = lastFrameR + (frames[frameIndex + FRAME_R] - lastFrameR) * percent;
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float g = lastFrameG + (frames[frameIndex + FRAME_G] - lastFrameG) * percent;
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float b = lastFrameB + (frames[frameIndex + FRAME_B] - lastFrameB) * percent;
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float a = lastFrameA + (frames[frameIndex + FRAME_A] - lastFrameA) * percent;
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if (alpha < 1)
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color.add((r - color.r) * alpha, (g - color.g) * alpha, (b - color.b) * alpha, (a - color.a) * alpha);
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else
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color.set(r, g, b, a);
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}
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}
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static public class AttachmentTimeline implements Timeline {
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int slotIndex;
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private final float[] frames; // time, ...
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private final String[] attachmentNames;
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public AttachmentTimeline (int frameCount) {
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frames = new float[frameCount];
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attachmentNames = new String[frameCount];
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}
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public int getFrameCount () {
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return frames.length;
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}
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public int getSlotIndex () {
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return slotIndex;
|
|
}
|
|
|
|
public void setSlotIndex (int slotIndex) {
|
|
this.slotIndex = slotIndex;
|
|
}
|
|
|
|
public float[] getFrames () {
|
|
return frames;
|
|
}
|
|
|
|
public String[] getAttachmentNames () {
|
|
return attachmentNames;
|
|
}
|
|
|
|
/** Sets the time and value of the specified keyframe. */
|
|
public void setFrame (int frameIndex, float time, String attachmentName) {
|
|
frames[frameIndex] = time;
|
|
attachmentNames[frameIndex] = attachmentName;
|
|
}
|
|
|
|
public void apply (Skeleton skeleton, float lastTime, float time, Array<Event> events, float alpha) {
|
|
float[] frames = this.frames;
|
|
if (time < frames[0]) return; // Time is before first frame.
|
|
|
|
int frameIndex;
|
|
if (time >= frames[frames.length - 1]) // Time is after last frame.
|
|
frameIndex = frames.length - 1;
|
|
else
|
|
frameIndex = binarySearch(frames, time, 1) - 1;
|
|
|
|
String attachmentName = attachmentNames[frameIndex];
|
|
skeleton.slots.get(slotIndex).setAttachment(
|
|
attachmentName == null ? null : skeleton.getAttachment(slotIndex, attachmentName));
|
|
}
|
|
}
|
|
|
|
static public class EventTimeline implements Timeline {
|
|
private final float[] frames; // time, ...
|
|
private final Event[] events;
|
|
|
|
public EventTimeline (int frameCount) {
|
|
frames = new float[frameCount];
|
|
events = new Event[frameCount];
|
|
}
|
|
|
|
public int getFrameCount () {
|
|
return frames.length;
|
|
}
|
|
|
|
public float[] getFrames () {
|
|
return frames;
|
|
}
|
|
|
|
public Event[] getEvents () {
|
|
return events;
|
|
}
|
|
|
|
/** Sets the time of the specified keyframe. */
|
|
public void setFrame (int frameIndex, float time, Event event) {
|
|
frames[frameIndex] = time;
|
|
events[frameIndex] = event;
|
|
}
|
|
|
|
public void apply (Skeleton skeleton, float lastTime, float time, Array<Event> firedEvents, float alpha) {
|
|
float[] frames = this.frames;
|
|
int frameCount = frames.length;
|
|
|
|
if (lastTime > time) { // Fire events after last time for looped animations.
|
|
apply(skeleton, lastTime, Integer.MAX_VALUE, firedEvents, alpha);
|
|
lastTime = 0;
|
|
} else if (lastTime >= frames[frameCount - 1]) return; // Last time is after last frame.
|
|
|
|
int frameIndex;
|
|
if (lastTime <= frames[0] || frameCount == 1)
|
|
frameIndex = 0;
|
|
else {
|
|
frameIndex = binarySearch(frames, lastTime, 1);
|
|
float frame = frames[frameIndex];
|
|
while (frameIndex > 0) { // Fire multiple events with the same frame.
|
|
if (frames[frameIndex - 1] != frame) break;
|
|
frameIndex--;
|
|
}
|
|
}
|
|
for (; frameIndex < frameCount && time >= frames[frameIndex]; frameIndex++)
|
|
firedEvents.add(events[frameIndex]);
|
|
}
|
|
}
|
|
|
|
static public class DrawOrderTimeline implements Timeline {
|
|
private final float[] frames; // time, ...
|
|
private final int[][] drawOrders;
|
|
|
|
public DrawOrderTimeline (int frameCount) {
|
|
frames = new float[frameCount];
|
|
drawOrders = new int[frameCount][];
|
|
}
|
|
|
|
public int getFrameCount () {
|
|
return frames.length;
|
|
}
|
|
|
|
public float[] getFrames () {
|
|
return frames;
|
|
}
|
|
|
|
public int[][] getDrawOrders () {
|
|
return drawOrders;
|
|
}
|
|
|
|
/** Sets the time of the specified keyframe.
|
|
* @param drawOrder May be null to use bind pose draw order. */
|
|
public void setFrame (int frameIndex, float time, int[] drawOrder) {
|
|
frames[frameIndex] = time;
|
|
drawOrders[frameIndex] = drawOrder;
|
|
}
|
|
|
|
public void apply (Skeleton skeleton, float lastTime, float time, Array<Event> firedEvents, float alpha) {
|
|
float[] frames = this.frames;
|
|
if (time < frames[0]) return; // Time is before first frame.
|
|
|
|
int frameIndex;
|
|
if (time >= frames[frames.length - 1]) // Time is after last frame.
|
|
frameIndex = frames.length - 1;
|
|
else
|
|
frameIndex = binarySearch(frames, time, 1) - 1;
|
|
|
|
Array<Slot> drawOrder = skeleton.drawOrder;
|
|
Array<Slot> slots = skeleton.slots;
|
|
int[] drawOrderToSetupIndex = drawOrders[frameIndex];
|
|
if (drawOrderToSetupIndex == null)
|
|
System.arraycopy(slots.items, 0, drawOrder.items, 0, slots.size);
|
|
else {
|
|
for (int i = 0, n = drawOrderToSetupIndex.length; i < n; i++)
|
|
drawOrder.set(i, slots.get(drawOrderToSetupIndex[i]));
|
|
}
|
|
}
|
|
}
|
|
}
|