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102 lines
2.2 KiB
C#
Executable file
102 lines
2.2 KiB
C#
Executable file
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#region ================== Copyright (c) 2007 Pascal vd Heiden
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/*
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* Copyright (c) 2007 Pascal vd Heiden, www.codeimp.com
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* This program is released under GNU General Public License
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#endregion
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#region ================== Namespaces
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using System.Collections.Generic;
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using CodeImp.DoomBuilder.Map;
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#endregion
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namespace CodeImp.DoomBuilder.Geometry
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{
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public sealed class SidedefsTracePath : List<Sidedef>
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{
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#region ================== Constants
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#endregion
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#region ================== Variables
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#endregion
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#region ================== Properties
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#endregion
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#region ================== Constructor / Disposer
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// Constructor
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public SidedefsTracePath()
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{
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// Initialize
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}
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// Constructor
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public SidedefsTracePath(SidedefsTracePath p, Sidedef add) : base(p)
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{
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// Initialize
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base.Add(add);
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}
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#endregion
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#region ================== Methods
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// This checks if the polygon is closed
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public bool CheckIsClosed()
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{
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// There must be at least 2 sidedefs
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if(base.Count > 1)
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{
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// The end sidedef must share a vertex with the first
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return (base[0].Line.Start == base[base.Count - 1].Line.Start) ||
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(base[0].Line.Start == base[base.Count - 1].Line.End) ||
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(base[0].Line.End == base[base.Count - 1].Line.Start) ||
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(base[0].Line.End == base[base.Count - 1].Line.End);
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}
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else
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{
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// Not closed
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return false;
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}
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}
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// This makes a polygon from the path
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public EarClipPolygon MakePolygon()
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{
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EarClipPolygon p = new EarClipPolygon();
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// Any sides at all?
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if(base.Count > 0)
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{
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// Add all sides
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for(int i = 0; i < base.Count; i++)
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{
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// On front or back?
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if(base[i].IsFront)
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p.AddLast(new EarClipVertex(base[i].Line.End.Position, base[i]));
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else
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p.AddLast(new EarClipVertex(base[i].Line.Start.Position, base[i]));
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}
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}
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return p;
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}
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#endregion
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}
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}
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