Initial commit

Library/PackageCache/com.unity.2d.animation@3.2.6/Runtime/Triangle/Geometry/Point.cs

@@ -0,0 +1,181 @@
+// -----------------------------------------------------------------------
+// <copyright file="Point.cs" company="">
+// Triangle.NET code by Christian Woltering, http://triangle.codeplex.com/
+// </copyright>
+// -----------------------------------------------------------------------
+
+namespace UnityEngine.U2D.Animation.TriangleNet
+    .Geometry
+{
+    using System;
+    using System.Diagnostics;
+
+    /// <summary>
+    /// Represents a 2D point.
+    /// </summary>
+#if USE_Z
+    [DebuggerDisplay("ID {ID} [{X}, {Y}, {Z}]")]
+#else
+    [DebuggerDisplay("ID {ID} [{X}, {Y}]")]
+#endif
+    internal class Point : IComparable<Point>, IEquatable<Point>
+    {
+        internal int id;
+        internal int label;
+
+        internal double x;
+        internal double y;
+#if USE_Z
+        internal double z;
+#endif
+
+        public Point()
+            : this(0.0, 0.0, 0)
+        {
+        }
+
+        public Point(double x, double y)
+            : this(x, y, 0)
+        {
+        }
+
+        public Point(double x, double y, int label)
+        {
+            this.x = x;
+            this.y = y;
+            this.label = label;
+        }
+
+        #region Public properties
+
+        /// <summary>
+        /// Gets or sets the vertex id.
+        /// </summary>
+        public int ID
+        {
+            get { return this.id; }
+            set { this.id = value; }
+        }
+
+        /// <summary>
+        /// Gets or sets the vertex x coordinate.
+        /// </summary>
+        public double X
+        {
+            get { return this.x; }
+            set { this.x = value; }
+        }
+
+        /// <summary>
+        /// Gets or sets the vertex y coordinate.
+        /// </summary>
+        public double Y
+        {
+            get { return this.y; }
+            set { this.y = value; }
+        }
+
+#if USE_Z
+        /// <summary>
+        /// Gets or sets the vertex z coordinate.
+        /// </summary>
+        public double Z
+        {
+            get { return this.z; }
+            set { this.z = value; }
+        }
+#endif
+
+        /// <summary>
+        /// Gets or sets a general-purpose label.
+        /// </summary>
+        /// <remarks>
+        /// This is used for the vertex boundary mark.
+        /// </remarks>
+        public int Label
+        {
+            get { return this.label; }
+            set { this.label = value; }
+        }
+
+        #endregion
+
+        #region Operator overloading / overriding Equals
+
+        // Compare "Guidelines for Overriding Equals() and Operator =="
+        // http://msdn.microsoft.com/en-us/library/ms173147.aspx
+
+        public static bool operator==(Point a, Point b)
+        {
+            // If both are null, or both are same instance, return true.
+            if (Object.ReferenceEquals(a, b))
+            {
+                return true;
+            }
+
+            // If one is null, but not both, return false.
+            if (((object)a == null) || ((object)b == null))
+            {
+                return false;
+            }
+
+            return a.Equals(b);
+        }
+
+        public static bool operator!=(Point a, Point b)
+        {
+            return !(a == b);
+        }
+
+        public override bool Equals(object obj)
+        {
+            // If parameter is null return false.
+            if (obj == null)
+            {
+                return false;
+            }
+
+            Point p = obj as Point;
+
+            if ((object)p == null)
+            {
+                return false;
+            }
+
+            return (x == p.x) && (y == p.y);
+        }
+
+        public bool Equals(Point p)
+        {
+            // If vertex is null return false.
+            if ((object)p == null)
+            {
+                return false;
+            }
+
+            // Return true if the fields match:
+            return (x == p.x) && (y == p.y);
+        }
+
+        #endregion
+
+        public int CompareTo(Point other)
+        {
+            if (x == other.x && y == other.y)
+            {
+                return 0;
+            }
+
+            return (x < other.x || (x == other.x && y < other.y)) ? -1 : 1;
+        }
+
+        public override int GetHashCode()
+        {
+            int hash = 19;
+            hash = hash * 31 + x.GetHashCode();
+            hash = hash * 31 + y.GetHashCode();
+
+            return hash;
+        }
+    }
+}