initial upload

Unity-Master/Assets/Plugins/RootMotion/FinalIK/Constraints/Constraints.cs

@@ -0,0 +1,95 @@
+using UnityEngine;
+using System.Collections;
+
+namespace RootMotion.FinalIK {
+
+	/// <summary>
+	/// Contains and manages a set of constraints.
+	/// </summary>
+	[System.Serializable]
+	public class Constraints {
+		
+		#region Main Interface
+
+		/// <summary>
+		/// The transform.
+		/// </summary>
+		public Transform transform;
+		/// <summary>
+		/// The target.
+		/// </summary>
+		public Transform target;
+		/// <summary>
+		/// The position offset.
+		/// </summary>
+		public Vector3 positionOffset;
+		/// <summary>
+		/// The position to lerp to by positionWeight
+		/// </summary>
+		public Vector3 position;
+		/// <summary>
+		/// The weight of lerping to position
+		/// </summary>
+		[Range(0f, 1f)]
+		public float positionWeight;
+		/// <summary>
+		/// The rotation offset.
+		/// </summary>
+		public Vector3 rotationOffset;
+		/// <summary>
+		/// The rotation to slerp to by rotationWeight
+		/// </summary>
+		public Vector3 rotation;
+		/// <summary>
+		/// The weight of slerping to rotation
+		/// </summary>
+		[Range(0f, 1f)]
+		public float rotationWeight;
+
+        private Vector3 defaultLocalPosition;
+        private Quaternion defaultLocalRotation;
+
+		/// <summary>
+		/// Determines whether this instance is valid.
+		/// </summary>
+		public bool IsValid() {
+			return transform != null;
+		}
+
+		/// <summary>
+		/// Initiate to the specified transform.
+		/// </summary>
+		public void Initiate(Transform transform) {
+			this.transform = transform;
+			this.position = transform.position;
+			this.rotation = transform.eulerAngles;
+            defaultLocalPosition = transform.localPosition;
+            defaultLocalRotation = transform.localRotation;
+		}
+
+        public void FixTransforms()
+        {
+            transform.localPosition = defaultLocalPosition;
+            transform.localRotation = defaultLocalRotation;
+        }
+
+		/// <summary>
+		/// Updates the constraints.
+		/// </summary>
+		public void Update() {
+			if (!IsValid()) return;
+
+			// Position
+			if (target != null) position = target.position;
+			transform.position += positionOffset;
+			if (positionWeight > 0f) transform.position = Vector3.Lerp(transform.position, position, positionWeight);
+
+			// Rotation
+			if (target != null) rotation = target.eulerAngles;
+			transform.rotation = Quaternion.Euler(rotationOffset) * transform.rotation;
+			if (rotationWeight > 0f) transform.rotation = Quaternion.Slerp(transform.rotation, Quaternion.Euler(rotation), rotationWeight);
+		}
+		
+		#endregion Main Interface
+	}
+}