mmorpg2d/Assets/Spine Examples/Scripts/SpineboyBodyTilt.cs

/******************************************************************************
 * Spine Runtimes License Agreement
 * Last updated January 1, 2020. Replaces all prior versions.
 *
 * Copyright (c) 2013-2020, Esoteric Software LLC
 *
 * Integration of the Spine Runtimes into software or otherwise creating
 * derivative works of the Spine Runtimes is permitted under the terms and
 * conditions of Section 2 of the Spine Editor License Agreement:
 * http://esotericsoftware.com/spine-editor-license
 *
 * Otherwise, it is permitted to integrate the Spine Runtimes into software
 * or otherwise create derivative works of the Spine Runtimes (collectively,
 * "Products"), provided that each user of the Products must obtain their own
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using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace Spine.Unity.Examples {
	public class SpineboyBodyTilt : MonoBehaviour {

		[Header("Settings")]
		public SpineboyFootplanter planter;

		[SpineBone]
		public string hip = "hip", head = "head";
		public float hipTiltScale = 7;
		public float headTiltScale = 0.7f;
		public float hipRotationMoveScale = 60f;

		[Header("Debug")]
		public float hipRotationTarget;
		public float hipRotationSmoothed;
		public float baseHeadRotation;

		Bone hipBone, headBone;

		void Start () {
			var skeletonAnimation = GetComponent<SkeletonAnimation>();
			var skeleton = skeletonAnimation.Skeleton;

			hipBone = skeleton.FindBone(hip);
			headBone = skeleton.FindBone(head);
			baseHeadRotation = headBone.Rotation;

			skeletonAnimation.UpdateLocal += UpdateLocal;
		}

		private void UpdateLocal (ISkeletonAnimation animated) {
			hipRotationTarget = planter.Balance * hipTiltScale;
			hipRotationSmoothed = Mathf.MoveTowards(hipRotationSmoothed, hipRotationTarget, Time.deltaTime * hipRotationMoveScale * Mathf.Abs(2f * planter.Balance / planter.offBalanceThreshold));
			hipBone.Rotation = hipRotationSmoothed;
			headBone.Rotation = baseHeadRotation + (-hipRotationSmoothed * headTiltScale);
		}
	}

}