@ re-added source code with new directory structure

Source/Core/Geometry/EarClipVertex.cs

@@ -0,0 +1,156 @@
+
+#region ================== Copyright (c) 2007 Pascal vd Heiden
+
+/*
+ * Copyright (c) 2007 Pascal vd Heiden, www.codeimp.com
+ * This program is released under GNU General Public License
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ */
+
+#endregion
+
+#region ================== Namespaces
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Text;
+using CodeImp.DoomBuilder.Geometry;
+using CodeImp.DoomBuilder.Rendering;
+using SlimDX.Direct3D9;
+using System.Drawing;
+using CodeImp.DoomBuilder.Map;
+
+#endregion
+
+namespace CodeImp.DoomBuilder.Geometry
+{
+	public sealed class EarClipVertex
+	{
+		#region ================== Variables
+		
+		// Position
+		private Vector2D pos;
+		
+		// Along a sidedef?
+		private Sidedef sidedef;
+		
+		// Lists
+		private LinkedListNode<EarClipVertex> vertslink;
+		private LinkedListNode<EarClipVertex> reflexlink;
+		private LinkedListNode<EarClipVertex> eartiplink;
+		
+		#endregion
+
+		#region ================== Properties
+
+		public Vector2D Position { get { return pos; } }
+		internal LinkedListNode<EarClipVertex> MainListNode { get { return vertslink; } }
+		public bool IsReflex { get { return (reflexlink != null); } }
+		public bool IsEarTip { get { return (eartiplink != null); } }
+		internal Sidedef Sidedef { get { return sidedef; } set { sidedef = value; } }
+		
+		#endregion
+
+		#region ================== Constructor / Disposer
+
+		// Copy constructor
+		internal EarClipVertex(EarClipVertex v)
+		{
+			// Initialize
+			this.pos = v.pos;
+			this.sidedef = v.sidedef;
+
+			// We have no destructor
+			GC.SuppressFinalize(this);
+		}
+
+		// Copy constructor
+		internal EarClipVertex(EarClipVertex v, Sidedef sidedef)
+		{
+			// Initialize
+			this.pos = v.pos;
+			this.sidedef = sidedef;
+			
+			// We have no destructor
+			GC.SuppressFinalize(this);
+		}
+
+		// Constructor
+		internal EarClipVertex(Vector2D v, Sidedef sidedef)
+		{
+			// Initialize
+			this.pos = v;
+			this.sidedef = sidedef;
+			
+			// We have no destructor
+			GC.SuppressFinalize(this);
+		}
+
+		// Disposer
+		internal void Dispose()
+		{
+			reflexlink = null;
+			eartiplink = null;
+			vertslink = null;
+			sidedef = null;
+		}
+		
+		#endregion
+
+		#region ================== Methods
+
+		// This sets the main linked list node
+		internal void SetVertsLink(LinkedListNode<EarClipVertex> link)
+		{
+			this.vertslink = link;
+		}
+		
+		// This removes the item from all lists
+		internal void Remove()
+		{
+			vertslink.List.Remove(vertslink);
+			if(reflexlink != null) reflexlink.List.Remove(reflexlink);
+			if(eartiplink != null) eartiplink.List.Remove(eartiplink);
+			reflexlink = null;
+			eartiplink = null;
+			vertslink = null;
+		}
+
+		// This adds to reflexes list
+		public void AddReflex(LinkedList<EarClipVertex> reflexes)
+		{
+			if(vertslink == null) throw new Exception();
+			if(reflexlink == null) reflexlink = reflexes.AddLast(this);
+		}
+
+		// This removes from reflexes list
+		internal void RemoveReflex()
+		{
+			if(reflexlink != null) reflexlink.List.Remove(reflexlink);
+			reflexlink = null;
+		}
+
+		// This adds to eartips list
+		internal void AddEarTip(LinkedList<EarClipVertex> eartips)
+		{
+			if(vertslink == null) throw new Exception();
+			if(eartiplink == null) eartiplink = eartips.AddLast(this);
+		}
+
+		// This removes from eartips list
+		internal void RemoveEarTip()
+		{
+			if(eartiplink != null) eartiplink.List.Remove(eartiplink);
+			eartiplink = null;
+		}
+		
+		#endregion
+	}
+}