Port NBT impl from LibAC Dart

Utilities/Vector2d.cs

@@ -0,0 +1,90 @@
+using System;
+
+namespace LibAC.Utilities
+{
+    public class Vector2d
+    {
+        public static readonly Vector2d ZERO = new Vector2d(0, 0);
+        public double X { get; set; }
+        public double Z { get; set; }
+
+        public Vector2d(double X = 0.0, double Z = 0.0)
+        {
+            this.X = X;
+            this.Z = Z;
+        }
+
+        public override bool Equals(object other)
+        {
+            if (other is Vector2d)
+            {
+                Vector2d otherVector = (Vector2d)other;
+                return X == otherVector.X && Z == otherVector.Z;
+            }
+            return false;
+        }
+
+        public static Vector2d operator +(Vector2d v1, Vector2d v2)
+        {
+            Vector2d result = v1.Clone();
+            result.X += v2.X;
+            result.Z += v2.Z;
+            return result;
+        }
+
+        public static Vector2d operator -(Vector2d v1, Vector2d v2)
+        {
+            Vector2d result = v1.Clone();
+            result.X -= v2.X;
+            result.Z -= v2.Z;
+            return result;
+        }
+
+        public static Vector2d operator *(Vector2d v1, Vector2d v2)
+        {
+            Vector2d result = v1.Clone();
+            result.X *= v2.X;
+            result.Z *= v2.Z;
+            return result;
+        }
+
+        public static Vector2d operator /(Vector2d v1, Vector2d v2)
+        {
+            Vector2d result = v1.Clone();
+            result.X /= v2.X;
+            result.Z /= v2.Z;
+            return result;
+        }
+
+        public static bool operator >(Vector2d v1, Vector2d v2)
+        {
+            return (v1.X > v2.X) || (v1.X > v2.Z);
+        }
+
+        public static bool operator <(Vector2d v1, Vector2d v2)
+        {
+            return (v1.X < v2.X) || (v1.X < v2.Z);
+        }
+
+        public Vector2d Clone()
+        {
+            return new Vector2d(X, Z);
+        }
+
+        public override string ToString()
+        {
+            return $"<{X}, {Z}>";
+        }
+
+        public bool Inside(Vector2d min, Vector2d max)
+        {
+            return (min.X <= X && max.X >= X) && (min.Z <= Z && max.Z >= Z);
+        }
+
+        // Override GetHashCode if you override Equals
+        public override int GetHashCode()
+        {
+            return HashCode.Combine(X, Z);
+        }
+    }
+}