Added FinalIK

Assets/Plugins/RootMotion/FinalIK/Constraints/Constraint.cs

@@ -0,0 +1,42 @@
+using UnityEngine;
+using System.Collections;
+
+namespace RootMotion.FinalIK {
+
+	/// <summary>
+	/// The base abstract class for all Transform constraints.
+	/// </summary>
+	[System.Serializable]
+	public abstract class Constraint {
+		
+		#region Main Interface
+		
+		/// <summary>
+		/// The transform to constrain.
+		/// </summary>
+		public Transform transform;
+		/// <summary>
+		/// %Constraint weight.
+		/// </summary>
+		public float weight;
+		
+		/// <summary>
+		/// Gets a value indicating whether this <see cref="Constraint"/> is valid.
+		/// </summary>
+		/// <value>
+		/// <c>true</c> if is valid; otherwise, <c>false</c>.
+		/// </value>
+		public bool isValid {
+			get {
+				return transform != null;
+			}
+		}
+		
+		/// <summary>
+		/// Updates the constraint.
+		/// </summary>
+		public abstract void UpdateConstraint();
+		
+		#endregion Main Interface
+	}
+}