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115 lines
4.5 KiB
C#
115 lines
4.5 KiB
C#
/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSim Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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using System;
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using System.IO;
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using System.Text;
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using OpenSim.Region.Environment.Interfaces;
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namespace OpenSim.Region.Environment.Modules.Terrain.FileLoaders
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{
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/// <summary>
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/// Terragen File Format Loader
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/// Built from specification at
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/// http://www.planetside.co.uk/terragen/dev/tgterrain.html
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/// </summary>
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class Terragen : ITerrainLoader
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{
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private static readonly log4net.ILog m_log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
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#region ITerrainLoader Members
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public ITerrainChannel LoadFile(string filename)
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{
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TerrainChannel retval = new TerrainChannel();
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FileInfo file = new FileInfo(filename);
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FileStream s = file.Open(FileMode.Open, FileAccess.Read);
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BinaryReader bs = new BinaryReader(s);
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bool eof = false;
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if (ASCIIEncoding.ASCII.GetString(bs.ReadBytes(16)) == "TERRAGENTERRAIN ")
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{
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// Terragen file
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while (eof == false)
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{
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int w = 256;
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int h = 256;
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string tmp = ASCIIEncoding.ASCII.GetString(bs.ReadBytes(4));
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switch (tmp)
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{
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case "SIZE":
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int sztmp = bs.ReadInt16() + 1;
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w = sztmp;
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h = sztmp;
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bs.ReadInt16();
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break;
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case "XPTS":
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w = bs.ReadInt16();
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bs.ReadInt16();
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break;
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case "YPTS":
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h = bs.ReadInt16();
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bs.ReadInt16();
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break;
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case "ALTW":
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eof = true;
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Int16 heightScale = bs.ReadInt16();
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Int16 baseHeight = bs.ReadInt16();
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retval = new TerrainChannel(w, h);
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int x, y;
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for (x = 0; x < w; x++)
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{
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for (y = 0; y < h; y++)
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{
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retval[x, y] = (double)baseHeight + (double)bs.ReadInt16() * (double)heightScale / 65536.0;
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}
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}
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break;
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default:
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bs.ReadInt32();
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break;
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}
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}
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}
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bs.Close();
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s.Close();
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return retval;
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}
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public void SaveFile(string filename, ITerrainChannel map)
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{
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char[] header = "TERRAGENTERRAIN".ToCharArray();
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throw new NotImplementedException();
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}
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#endregion
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}
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}
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