1 files changed, 57 insertions, 0 deletions
diff --git a/Assets/Scripts/MathFunctionLibrary.cs b/Assets/Scripts/MathFunctionLibrary.cs
new file mode 100644
index 0000000..d83b673
--- /dev/null
+++ b/Assets/Scripts/MathFunctionLibrary.cs
@@ -0,0 +1,57 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+using static UnityEngine.Mathf;
+
+public static class MathFunctionLibrary 
+{
+	public delegate float Function(float x, float t);
+
+	public static float GetFunction(float x, float t)
+	{
+		if(index == 0)
+		{
+			return Wave;
+		}
+		else if(index == 1)
+		{
+			return MultiWave;
+		}
+		else //if(index == 2)
+		{
+			return Ripple;
+		}
+	}
+
+	public static float Wave(float x, float t)
+	{
+		return Sin(PI * (x + t));
+	}
+
+	public static float MultiWave(float x, float t)
+	{
+		float y = MathFunctionLibrary.Wave(x, t * 0.5f);
+		y += Sin(2f * PI * (x + t)) * 0.5f;
+		return y * (2f / 3f);
+	}
+
+	public static float Ripple(float x, float t) {
+		float d = Abs(x);
+		float y = Sin(PI * (4f * d - (2f * t)));
+		return y / (1f + 10f * d);
+	}
+	/*
+    // Start is called before the first frame update
+    void Start()
+    {
+        
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        
+    }
+	*/
+}