mirror of
https://github.com/EsotericSoftware/spine-runtimes.git
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89 lines
3.9 KiB
TypeScript
89 lines
3.9 KiB
TypeScript
/******************************************************************************
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* Spine Runtimes License Agreement
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* Last updated April 5, 2025. Replaces all prior versions.
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*
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* Copyright (c) 2013-2025, 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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import type { Animation } from "./Animation.js";
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import type { SkeletonData } from "./SkeletonData.js";
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import type { StringMap } from "./Utils.js";
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/** Stores mix (crossfade) durations to be applied when {@link AnimationState} animations are changed. */
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export class AnimationStateData {
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/** The SkeletonData to look up animations when they are specified by name. */
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skeletonData: SkeletonData;
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animationToMixTime: StringMap<number> = {};
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/** The mix duration to use when no mix duration has been defined between two animations. */
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defaultMix = 0;
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constructor (skeletonData: SkeletonData) {
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if (!skeletonData) throw new Error("skeletonData cannot be null.");
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this.skeletonData = skeletonData;
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}
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/** Sets a mix duration by animation name.
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*
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* See {@link #setMix()}. */
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setMix (fromName: string, to: string, duration: number): void;
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/** Sets the mix duration when changing from the specified animation to the other.
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*
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* See {@link TrackEntry#mixDuration}. */
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setMix (from: Animation, to: Animation, duration: number): void;
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setMix (from: string | Animation, to: string | Animation, duration: number) {
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if (typeof from === "string")
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return this.setMix1(from, to as string, duration);
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return this.setMix2(from, to as Animation, duration);
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}
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private setMix1 (fromName: string, toName: string, duration: number) {
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const from = this.skeletonData.findAnimation(fromName);
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if (!from) throw new Error(`Animation not found: ${fromName}`);
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const to = this.skeletonData.findAnimation(toName);
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if (!to) throw new Error(`Animation not found: ${toName}`);
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this.setMix2(from, to, duration);
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}
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private setMix2 (from: Animation, to: Animation, duration: number) {
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if (!from) throw new Error("from cannot be null.");
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if (!to) throw new Error("to cannot be null.");
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const key = `${from.name}.${to.name}`;
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this.animationToMixTime[key] = duration;
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}
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/** Returns the mix duration to use when changing from the specified animation to the other, or the {@link #defaultMix} if
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* no mix duration has been set. */
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getMix (from: Animation, to: Animation) {
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const key = `${from.name}.${to.name}`;
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const value = this.animationToMixTime[key];
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return value === undefined ? this.defaultMix : value;
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}
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}
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