1 files changed, 53 insertions, 0 deletions
diff --git a/Samples/AnimTest/Animation/PathAnimation.cs b/Samples/AnimTest/Animation/PathAnimation.cs
new file mode 100644
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+++ b/Samples/AnimTest/Animation/PathAnimation.cs
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+// Copyright (c) 2015-2021  Jean-Philippe Bruyère <jp_bruyere@hotmail.com>
+//
+// This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT)
+
+using System;
+using System.Numerics;
+
+namespace vke
+{
+	public class PathAnimation : Animation<Vector3>
+	{
+		Path path;
+		int stepCount, currentStep;
+
+		#region CTOR
+		public PathAnimation(Object instance, string _propertyName, Path _path, int _stepCount = 20)
+			: base(instance, _propertyName)
+		{
+			path = _path;
+			stepCount = _stepCount;
+		}
+
+		#endregion
+
+		bool smooth = true;
+
+		float smoothedStep (float step) => (-MathF.Cos (step * MathF.PI) + 1)/2.0f;
+
+		public override void Process()
+		{
+			currentStep++;
+
+			float t = (float)currentStep / (float)stepCount;
+			if (smooth)
+				t = smoothedStep (t);
+
+			Vector3 pos = path.GetStep (t);
+			setValue(pos);
+
+			if (currentStep < stepCount)
+				return;
+
+			AnimationList.Remove(this);
+			RaiseAnimationFinishedEvent ();
+		}
+
+		public override string ToString ()
+		{
+			return string.Format ("{0}:->{1}:{2}",base.ToString(),TargetValue,Step);
+		}
+	}
+}
+