CentralizedControl/Veldrid.Common/Poly2Tri/Triangulation/TriangulationContext.cs

/* Poly2Tri
 * Copyright (c) 2009-2010, Poly2Tri Contributors
 * http://code.google.com/p/poly2tri/
 *
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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using System.Collections.Generic;
using Veldrid.Common.Poly2Tri.Triangulation.Delaunay;
using Veldrid.Common.Poly2Tri.Triangulation.Delaunay.Sweep;

namespace Veldrid.Common.Poly2Tri.Triangulation
{
	public abstract class TriangulationContext {
		public TriangulationDebugContext DebugContext { get; protected set; }

		public readonly List<DelaunayTriangle> Triangles = new List<DelaunayTriangle>();
		public readonly List<TriangulationPoint> Points = new List<TriangulationPoint>(200);
		public TriangulationMode TriangulationMode { get; protected set; }
		public Triangulatable Triangulatable { get; private set; }

		public int StepCount { get; private set; }

		public void Done() {
			StepCount++;
		}

		public abstract TriangulationAlgorithm Algorithm { get; }

		public virtual void PrepareTriangulation(Triangulatable t) {
			Triangulatable = t;
			TriangulationMode = t.TriangulationMode;
			t.Prepare(this);
		}

		public abstract TriangulationConstraint NewConstraint(TriangulationPoint a, TriangulationPoint b);

		public void Update(string message) {}

		public virtual void Clear() {
			Points.Clear();
			if (DebugContext != null) DebugContext.Clear();
			StepCount = 0;
		}

		public virtual bool IsDebugEnabled { get; protected set; }

		public DTSweepDebugContext DTDebugContext { get { return DebugContext as DTSweepDebugContext; } }
	}
}