WXGame/box1/Assets/Spine Examples/Scripts/Sample Components/SpineEventUnityHandler.cs

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 * Spine Runtimes License Agreement
 * Last updated July 28, 2023. Replaces all prior versions.
 *
 * Copyright (c) 2013-2023, Esoteric Software LLC
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using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Events;

namespace Spine.Unity.Prototyping {

	public class SpineEventUnityHandler : MonoBehaviour {

		[System.Serializable]
		public class EventPair {
			[SpineEvent] public string spineEvent;
			public UnityEvent unityHandler;
			public AnimationState.TrackEntryEventDelegate eventDelegate;
		}

		public List<EventPair> events = new List<EventPair>();

		ISkeletonComponent skeletonComponent;
		IAnimationStateComponent animationStateComponent;

		void Start () {
			if (skeletonComponent == null)
				skeletonComponent = GetComponent<ISkeletonComponent>();
			if (skeletonComponent == null) return;
			if (animationStateComponent == null)
				animationStateComponent = skeletonComponent as IAnimationStateComponent;
			if (animationStateComponent == null) return;
			Skeleton skeleton = skeletonComponent.Skeleton;
			if (skeleton == null) return;


			SkeletonData skeletonData = skeleton.Data;
			AnimationState state = animationStateComponent.AnimationState;
			foreach (EventPair ep in events) {
				EventData eventData = skeletonData.FindEvent(ep.spineEvent);
				ep.eventDelegate = ep.eventDelegate ?? delegate (TrackEntry trackEntry, Event e) { if (e.Data == eventData) ep.unityHandler.Invoke(); };
				state.Event += ep.eventDelegate;
			}
		}

		void OnDestroy () {
			if (animationStateComponent == null) animationStateComponent = GetComponent<IAnimationStateComponent>();
			if (animationStateComponent.IsNullOrDestroyed()) return;

			AnimationState state = animationStateComponent.AnimationState;
			foreach (EventPair ep in events) {
				if (ep.eventDelegate != null) state.Event -= ep.eventDelegate;
				ep.eventDelegate = null;
			}
		}

	}
}