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SharpSteer2.WinDemo/SharpSteer2.WinDemo/DeferredDraw.cs

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+// Copyright (c) 2002-2003, Sony Computer Entertainment America
+// Copyright (c) 2002-2003, Craig Reynolds <craig_reynolds@playstation.sony.com>
+// Copyright (C) 2007 Bjoern Graf <bjoern.graf@gmx.net>
+// Copyright (C) 2007 Michael Coles <michael@digini.com>
+// All rights reserved.
+//
+// This software is licensed as described in the file license.txt, which
+// you should have received as part of this distribution. The terms
+// are also available at http://www.codeplex.com/SharpSteer/Project/License.aspx.
+
+using System;
+using System.Collections.Generic;
+using Microsoft.Xna.Framework.Graphics;
+using Microsoft.Xna.Framework;
+
+namespace Bnoerj.AI.Steering
+{
+	public class DeferredLine
+	{
+		static DeferredLine()
+		{
+			deferredLineArray = new DeferredLine[size];
+			for (int i = 0; i < size; i++)
+			{
+				deferredLineArray[i] = new DeferredLine();
+			}
+		}
+
+		public static void AddToBuffer(Vector3 s, Vector3 e, Color c)
+		{
+			if (index < size)
+			{
+				deferredLineArray[index].startPoint = s;
+				deferredLineArray[index].endPoint = e;
+				deferredLineArray[index].color = c;
+				index++;
+			}
+			else
+			{
+				System.Diagnostics.Debug.WriteLine("overflow in deferredDrawLine buffer");
+			}
+		}
+
+		public static void DrawAll()
+		{
+			// draw all lines in the buffer
+			for (int i = 0; i < index; i++)
+			{
+				DeferredLine dl = deferredLineArray[i];
+				Drawing.iDrawLine(dl.startPoint, dl.endPoint, dl.color);
+			}
+
+			// reset buffer index
+			index = 0;
+		}
+
+		Vector3 startPoint;
+		Vector3 endPoint;
+		Color color;
+
+		static int index = 0;
+		const int size = 3000;
+		static DeferredLine[] deferredLineArray;
+	}
+
+	public class DeferredCircle
+	{
+		static DeferredCircle()
+		{
+			deferredCircleArray = new DeferredCircle[size];
+			for (int i = 0; i < size; i++)
+			{
+				deferredCircleArray[i] = new DeferredCircle();
+			}
+		}
+
+		public static void AddToBuffer(float radius, Vector3 axis, Vector3 center, Color color, int segments, bool filled, bool in3d)
+		{
+			if (index < size)
+			{
+				deferredCircleArray[index].radius = radius;
+				deferredCircleArray[index].axis = axis;
+				deferredCircleArray[index].center = center;
+				deferredCircleArray[index].color = color;
+				deferredCircleArray[index].segments = segments;
+				deferredCircleArray[index].filled = filled;
+				deferredCircleArray[index].in3d = in3d;
+				index++;
+			}
+			else
+			{
+				System.Diagnostics.Debug.WriteLine("overflow in deferredDrawCircle buffer");
+			}
+		}
+
+		public static void DrawAll()
+		{
+			// draw all circles in the buffer
+			for (int i = 0; i < index; i++)
+			{
+				DeferredCircle dc = deferredCircleArray[i];
+				Drawing.DrawCircleOrDisk(dc.radius, dc.axis, dc.center, dc.color, dc.segments, dc.filled, dc.in3d);
+			}
+
+			// reset buffer index
+			index = 0;
+		}
+
+		float radius;
+		Vector3 axis;
+		Vector3 center;
+		Color color;
+		int segments;
+		bool filled;
+		bool in3d;
+
+		static int index = 0;
+		const int size = 500;
+		static DeferredCircle[] deferredCircleArray;
+	}
+}