Add Vector4.cs

tools/core/math/Vector4.cs

@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2012-2016 Daniele Bartolini and individual contributors.
+ * License: https://github.com/taylor001/crown/blob/master/LICENSE
+ */
+
+using System.Collections;
+using System;
+
+namespace Crown
+{
+	public struct Vector4
+	{
+		public float x, y, z, w;
+
+		public Vector4(float x, float y, float z, float w)
+		{
+			this.x = x;
+			this.y = y;
+			this.z = z;
+			this.w = w;
+		}
+
+		public Vector4(ArrayList arr)
+		{
+			this.x = (float)(double)arr[0];
+			this.y = (float)(double)arr[1];
+			this.z = (float)(double)arr[2];
+			this.w = (float)(double)arr[3];
+		}
+
+		public static Vector4 operator+(Vector4 a, Vector4 b)
+		{
+			return new Vector4(a.x + b.x, a.y + b.y, a.z + b.z, a.w + b.w);
+		}
+
+		public static Vector4 operator-(Vector4 a, Vector4 b)
+		{
+			return new Vector4(a.x - b.x, a.y - b.y, a.z - b.z, a.w - b.w);
+		}
+
+		public static Vector4 operator*(Vector4 a, float k)
+		{
+			return new Vector4(a.x * k, a.y * k, a.z * k, a.w * k);
+		}
+
+		public static Vector4 operator*(float k, Vector4 a)
+		{
+			return a * k;
+		}
+
+		public override string ToString()
+		{
+			return string.Format("{0}, {1}, {2}, {3}", x, y, z, w);
+		}
+	}
+}