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

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+/******************************************************************************
+ * 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
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+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);
+		}
+	}
+
+}