mirror of
https://github.com/EsotericSoftware/spine-runtimes.git
synced 2026-03-26 22:49:01 +08:00
99 lines
3.6 KiB
Java
99 lines
3.6 KiB
Java
/******************************************************************************
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* Spine Runtimes Software License
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* Version 2
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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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* You are granted a perpetual, non-exclusive, non-sublicensable and
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* non-transferable license to install, execute and perform the Spine Runtimes
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* Software (the "Software") solely for internal use. Without the written
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* permission of Esoteric Software, you may not (a) modify, translate, adapt or
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* otherwise create derivative works, improvements of the Software or develop
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* new applications using the Software or (b) remove, delete, alter or obscure
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* any trademarks or any copyright, trademark, patent or other intellectual
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* property or proprietary rights notices on or in the Software, including
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* any copy thereof. Redistributions in binary or source form must include
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* this license and terms. THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTARE 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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* 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
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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package com.esotericsoftware.spine.attachments;
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import com.esotericsoftware.spine.Slot;
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import com.badlogic.gdx.graphics.g2d.TextureRegion;
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import com.badlogic.gdx.math.MathUtils;
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/** Attachment that displays various texture regions over time. */
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public class RegionSequenceAttachment extends RegionAttachment {
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private Mode mode;
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private float frameTime;
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private TextureRegion[] regions;
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public RegionSequenceAttachment (String name) {
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super(name);
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}
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public void updateWorldVertices (Slot slot, boolean premultipliedAlpha) {
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if (regions == null) throw new IllegalStateException("Regions have not been set: " + this);
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int frameIndex = (int)(slot.getAttachmentTime() / frameTime);
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switch (mode) {
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case forward:
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frameIndex = Math.min(regions.length - 1, frameIndex);
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break;
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case forwardLoop:
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frameIndex = frameIndex % regions.length;
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break;
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case pingPong:
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frameIndex = frameIndex % (regions.length * 2);
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if (frameIndex >= regions.length) frameIndex = regions.length - 1 - (frameIndex - regions.length);
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break;
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case random:
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frameIndex = MathUtils.random(regions.length - 1);
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break;
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case backward:
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frameIndex = Math.max(regions.length - frameIndex - 1, 0);
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break;
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case backwardLoop:
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frameIndex = frameIndex % regions.length;
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frameIndex = regions.length - frameIndex - 1;
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break;
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}
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setRegion(regions[frameIndex]);
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super.updateWorldVertices(slot, premultipliedAlpha);
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}
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public TextureRegion[] getRegions () {
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if (regions == null) throw new IllegalStateException("Regions have not been set: " + this);
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return regions;
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}
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public void setRegions (TextureRegion[] regions) {
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this.regions = regions;
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}
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/** Sets the time in seconds each frame is shown. */
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public void setFrameTime (float frameTime) {
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this.frameTime = frameTime;
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}
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public void setMode (Mode mode) {
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this.mode = mode;
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}
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static public enum Mode {
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forward, backward, forwardLoop, backwardLoop, pingPong, random
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}
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}
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