2007-04-06 18:48:23 +00:00
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using System;
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using System.Collections.Generic;
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using System.Text;
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2007-04-11 05:19:27 +00:00
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using libTerrain;
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2007-04-06 18:48:23 +00:00
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namespace OpenSim.Terrain
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{
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public class TerrainEngine
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{
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2007-04-07 17:30:11 +00:00
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/// <summary>
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/// A [normally] 256x256 heightmap
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/// </summary>
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2007-04-11 05:19:27 +00:00
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public Channel heightmap;
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2007-04-06 18:48:23 +00:00
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int w, h;
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2007-04-07 17:30:11 +00:00
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/// <summary>
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/// Generate a new TerrainEngine instance and creates a new heightmap
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/// </summary>
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2007-04-06 18:48:23 +00:00
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public TerrainEngine()
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{
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w = 256;
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h = 256;
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2007-04-11 05:19:27 +00:00
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heightmap = new Channel(w, h);
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2007-04-06 18:48:23 +00:00
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}
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2007-04-07 16:48:38 +00:00
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/// <summary>
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/// Converts the heightmap to a 65536 value 1D floating point array
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/// </summary>
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/// <returns>A float[65536] array containing the heightmap</returns>
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2007-04-06 18:53:18 +00:00
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public float[] getHeights1D()
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{
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2007-04-11 09:45:48 +00:00
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float[] heights = new float[w * h];
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2007-04-06 18:53:18 +00:00
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int i;
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2007-04-11 09:45:48 +00:00
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for (i = 0; i < w * h; i++)
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{
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2007-04-11 05:19:27 +00:00
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heights[i] = (float)heightmap.map[i / w, i % w];
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}
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2007-04-11 09:45:48 +00:00
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2007-04-11 05:19:27 +00:00
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return heights;
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}
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public float[,] getHeights2D()
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{
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float[,] heights = new float[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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heights[x, y] = (float)heightmap.map[x, y];
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}
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2007-04-06 18:53:18 +00:00
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}
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return heights;
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}
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2007-04-07 16:48:38 +00:00
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/// <summary>
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/// Imports a 1D floating point array into the 2D heightmap array
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/// </summary>
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/// <param name="heights">The array to import (must have 65536 members)</param>
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2007-04-07 16:30:16 +00:00
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public void setHeights1D(float[] heights)
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{
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int i;
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for (i = 0; i < w * h; i++)
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{
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2007-04-11 05:19:27 +00:00
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heightmap.map[i / w, i % w] = heights[i];
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}
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}
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public float[,] setHeights2D(float[,] heights)
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{
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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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heightmap.set(x,y,(double)heights[x,y]);
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}
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2007-04-07 16:30:16 +00:00
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}
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2007-04-11 05:19:27 +00:00
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return heights;
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2007-04-07 16:30:16 +00:00
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}
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2007-04-20 14:49:24 +00:00
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public void setRange(float min, float max)
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{
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heightmap.normalise((double)min, (double)max);
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}
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2007-04-07 16:30:16 +00:00
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2007-04-07 16:48:38 +00:00
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/// <summary>
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/// Loads a file consisting of 256x256 doubles and imports it as an array into the map.
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/// </summary>
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2007-04-11 05:19:27 +00:00
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/// <remarks>TODO: Move this to libTerrain itself</remarks>
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2007-04-07 16:48:38 +00:00
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/// <param name="filename">The filename of the double array to import</param>
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public void loadFromFileF64(string filename)
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{
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System.IO.FileInfo file = new System.IO.FileInfo(filename);
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System.IO.FileStream s = file.Open(System.IO.FileMode.Open, System.IO.FileAccess.Read);
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System.IO.BinaryReader bs = new System.IO.BinaryReader(s);
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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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2007-04-11 05:19:27 +00:00
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heightmap.map[x, y] = bs.ReadDouble();
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2007-04-07 16:48:38 +00:00
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}
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}
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2007-04-20 05:50:50 +00:00
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bs.Close();
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s.Close();
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2007-04-07 16:48:38 +00:00
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}
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2007-04-20 05:39:01 +00:00
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/// <summary>
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/// Loads a file consisting of 256x256 floats and imports it as an array into the map.
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/// </summary>
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/// <remarks>TODO: Move this to libTerrain itself</remarks>
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/// <param name="filename">The filename of the float array to import</param>
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public void loadFromFileF32(string filename)
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{
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System.IO.FileInfo file = new System.IO.FileInfo(filename);
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System.IO.FileStream s = file.Open(System.IO.FileMode.Open, System.IO.FileAccess.Read);
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System.IO.BinaryReader bs = new System.IO.BinaryReader(s);
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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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heightmap.map[x, y] = (double)bs.ReadSingle();
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}
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}
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2007-04-20 05:50:50 +00:00
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bs.Close();
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s.Close();
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2007-04-20 05:39:01 +00:00
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}
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public void writeToFileF64(string filename)
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{
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System.IO.FileInfo file = new System.IO.FileInfo(filename);
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System.IO.FileStream s = file.Open(System.IO.FileMode.CreateNew, System.IO.FileAccess.Write);
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System.IO.BinaryWriter bs = new System.IO.BinaryWriter(s);
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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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bs.Write(heightmap.get(x,y));
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}
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}
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2007-04-20 05:50:50 +00:00
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bs.Close();
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s.Close();
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2007-04-20 05:39:01 +00:00
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}
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public void writeToFileF32(string filename)
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{
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System.IO.FileInfo file = new System.IO.FileInfo(filename);
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System.IO.FileStream s = file.Open(System.IO.FileMode.CreateNew, System.IO.FileAccess.Write);
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System.IO.BinaryWriter bs = new System.IO.BinaryWriter(s);
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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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bs.Write((float)heightmap.get(x, y));
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}
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}
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2007-04-20 05:50:50 +00:00
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bs.Close();
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s.Close();
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2007-04-20 05:39:01 +00:00
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}
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public void setSeed(int val)
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{
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heightmap.seed = val;
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}
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2007-04-06 18:48:23 +00:00
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/// <summary>
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/// Raises land in a sphere around the specified coordinates
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/// </summary>
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/// <param name="rx">Center of the sphere on the X axis</param>
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/// <param name="ry">Center of the sphere on the Y axis</param>
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/// <param name="size">The radius of the sphere</param>
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/// <param name="amount">Scale the height of the sphere by this amount (recommended 0..2)</param>
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public void raise(double rx, double ry, double size, double amount)
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{
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2007-04-11 05:19:27 +00:00
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lock (heightmap)
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2007-04-06 18:48:23 +00:00
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{
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2007-04-11 05:19:27 +00:00
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heightmap.raise(rx, ry, size, amount);
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2007-04-06 18:48:23 +00:00
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}
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}
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2007-04-07 17:30:11 +00:00
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/// <summary>
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/// Lowers the land in a sphere around the specified coordinates
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/// </summary>
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/// <param name="rx">The center of the sphere at the X axis</param>
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/// <param name="ry">The center of the sphere at the Y axis</param>
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/// <param name="size">The radius of the sphere in meters</param>
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/// <param name="amount">Scale the height of the sphere by this amount (recommended 0..2)</param>
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2007-04-06 18:48:23 +00:00
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public void lower(double rx, double ry, double size, double amount)
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{
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2007-04-11 05:19:27 +00:00
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lock (heightmap)
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2007-04-06 18:48:23 +00:00
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{
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2007-04-11 05:19:27 +00:00
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heightmap.lower(rx, ry, size, amount);
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2007-04-06 18:48:23 +00:00
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}
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}
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2007-04-07 17:30:11 +00:00
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/// <summary>
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/// Generates a simple set of hills in the shape of an island
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/// </summary>
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2007-04-06 18:48:23 +00:00
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public void hills()
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{
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2007-04-11 05:19:27 +00:00
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lock (heightmap)
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2007-04-06 18:48:23 +00:00
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{
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2007-04-11 05:19:27 +00:00
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heightmap.hillsSpheres(200, 20, 40, true, true, false);
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heightmap.normalise();
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heightmap *= 60.0; // Raise to 60m
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2007-04-06 18:48:23 +00:00
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}
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}
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2007-04-20 14:53:38 +00:00
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public static TerrainEngine operator *(TerrainEngine meep, Double val) {
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meep.heightmap *= val;
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return meep;
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}
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2007-04-11 05:19:27 +00:00
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public float this[int x, int y]
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{
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get
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{
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return (float)heightmap.get(x,y);
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}
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set
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{
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heightmap.set(x,y,(double)value);
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}
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}
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2007-04-06 18:48:23 +00:00
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}
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}
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