Initial commit

Library/PackageCache/com.unity.2d.animation@3.2.6/Runtime/Triangle/IO/TriangleFormat.cs

@@ -0,0 +1,92 @@
+// -----------------------------------------------------------------------
+// <copyright file="TriangleFormat.cs" company="">
+// Triangle.NET code by Christian Woltering, http://triangle.codeplex.com/
+// </copyright>
+// -----------------------------------------------------------------------
+
+namespace UnityEngine.U2D.Animation.TriangleNet
+    .IO
+{
+    using System;
+    using System.Collections.Generic;
+    using System.IO;
+    using Animation.TriangleNet.Geometry;
+    using Animation.TriangleNet.Meshing;
+
+    /// <summary>
+    /// Implements geometry and mesh file formats of the the original Triangle code.
+    /// </summary>
+    internal class TriangleFormat : IPolygonFormat, IMeshFormat
+    {
+        public bool IsSupported(string file)
+        {
+            string ext = Path.GetExtension(file).ToLower();
+
+            if (ext == ".node" || ext == ".poly" || ext == ".ele")
+            {
+                return true;
+            }
+
+            return false;
+        }
+
+        public IMesh Import(string filename)
+        {
+            string ext = Path.GetExtension(filename);
+
+            if (ext == ".node" || ext == ".poly" || ext == ".ele")
+            {
+                List<ITriangle> triangles;
+                Polygon geometry;
+
+                (new TriangleReader()).Read(filename, out geometry, out triangles);
+
+                if (geometry != null && triangles != null)
+                {
+                    return Converter.ToMesh(geometry, triangles.ToArray());
+                }
+            }
+
+            throw new NotSupportedException("Could not load '" + filename + "' file.");
+        }
+
+        public void Write(IMesh mesh, string filename)
+        {
+            var writer = new TriangleWriter();
+
+            writer.WritePoly((Mesh)mesh, Path.ChangeExtension(filename, ".poly"));
+            writer.WriteElements((Mesh)mesh, Path.ChangeExtension(filename, ".ele"));
+        }
+
+        public void Write(IMesh mesh, Stream stream)
+        {
+            throw new NotImplementedException();
+        }
+
+        public IPolygon Read(string filename)
+        {
+            string ext = Path.GetExtension(filename);
+
+            if (ext == ".node")
+            {
+                return (new TriangleReader()).ReadNodeFile(filename);
+            }
+            else if (ext == ".poly")
+            {
+                return (new TriangleReader()).ReadPolyFile(filename);
+            }
+
+            throw new NotSupportedException("File format '" + ext + "' not supported.");
+        }
+
+        public void Write(IPolygon polygon, string filename)
+        {
+            (new TriangleWriter()).WritePoly(polygon, filename);
+        }
+
+        public void Write(IPolygon polygon, Stream stream)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}