From 3376b82501000692d6dac24b051af738cdaf2737 Mon Sep 17 00:00:00 2001
From: MW
Date: Thu, 24 May 2007 12:16:50 +0000
Subject: Some more code refactoring, plus a restructuring of the directories
so that the Grid servers can be a separate solution to the region server.
---
OpenSim.Terrain.BasicTerrain/TerrainEngine.cs | 453 --------------------------
1 file changed, 453 deletions(-)
delete mode 100644 OpenSim.Terrain.BasicTerrain/TerrainEngine.cs
(limited to 'OpenSim.Terrain.BasicTerrain/TerrainEngine.cs')
diff --git a/OpenSim.Terrain.BasicTerrain/TerrainEngine.cs b/OpenSim.Terrain.BasicTerrain/TerrainEngine.cs
deleted file mode 100644
index a0f37f9..0000000
--- a/OpenSim.Terrain.BasicTerrain/TerrainEngine.cs
+++ /dev/null
@@ -1,453 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Text;
-using System.Drawing;
-using libTerrain;
-
-namespace OpenSim.Terrain
-{
- public class TerrainEngine
- {
- ///
- /// A [normally] 256x256 heightmap
- ///
- public Channel heightmap;
-
- ///
- /// Whether or not the terrain has been modified since it was last saved and sent to the Physics engine.
- /// Counts the number of modifications since the last save. (0 = Untainted)
- ///
- public int tainted;
-
- int w, h;
-
- ///
- /// Generate a new TerrainEngine instance and creates a new heightmap
- ///
- public TerrainEngine()
- {
- w = 256;
- h = 256;
- heightmap = new Channel(w, h);
-
- tainted++;
- }
-
- ///
- /// Converts the heightmap to a 65536 value 1D floating point array
- ///
- /// A float[65536] array containing the heightmap
- public float[] getHeights1D()
- {
- float[] heights = new float[w * h];
- int i;
-
- for (i = 0; i < w * h; i++)
- {
- heights[i] = (float)heightmap.map[i / w, i % w];
- }
-
- return heights;
- }
-
- ///
- /// Converts the heightmap to a 256x256 value 2D floating point array.
- ///
- /// An array of 256,256 values containing the heightmap
- public float[,] getHeights2D()
- {
- float[,] heights = new float[w, h];
- int x, y;
- for (x = 0; x < w; x++)
- {
- for (y = 0; y < h; y++)
- {
- heights[x, y] = (float)heightmap.map[x, y];
- }
- }
- return heights;
- }
-
- ///
- /// Imports a 1D floating point array into the 2D heightmap array
- ///
- /// The array to import (must have 65536 members)
- public void setHeights1D(float[] heights)
- {
- int i;
- for (i = 0; i < w * h; i++)
- {
- heightmap.map[i / w, i % w] = heights[i];
- }
-
- tainted++;
- }
-
- ///
- /// Loads a 2D array of values into the heightmap
- ///
- /// An array of 256,256 float values
- public void setHeights2D(float[,] heights)
- {
- int x, y;
- for (x = 0; x < w; x++)
- {
- for (y = 0; y < h; y++)
- {
- heightmap.set(x,y,(double)heights[x,y]);
- }
- }
- tainted++;
- }
-
- ///
- /// Processes a terrain-specific command
- ///
- /// Commandline arguments (space seperated)
- /// Reference that returns error or help text if returning false
- /// If the operation was successful (if not, the error is placed into resultText)
- public bool RunTerrainCmd(string[] args, ref string resultText)
- {
- string command = args[0];
-
- try
- {
-
- switch (command)
- {
- case "help":
- resultText += "terrain regenerate - rebuilds the sims terrain using a default algorithm\n";
- resultText += "terrain seed - sets the random seed value to \n";
- resultText += "terrain load - loads a terrain from disk, type can be 'F32', 'F64' or 'IMG'\n";
- resultText += "terrain save - saves a terrain to disk, type can be 'F32' or 'F64'\n";
- resultText += "terrain save grdmap - creates a PNG snapshot of the region using a named gradient map\n";
- resultText += "terrain rescale - rescales a terrain to be between and meters high\n";
- resultText += "terrain erode aerobic \n";
- resultText += "terrain erode thermal \n";
- resultText += "terrain multiply - multiplies a terrain by \n";
- return false;
-
- case "seed":
- setSeed(Convert.ToInt32(args[1]));
- break;
-
- case "erode":
- switch (args[1].ToLower())
- {
- case "aerobic":
- // WindSpeed, PickupMinimum,DropMinimum,Carry,Rounds,Lowest
- heightmap.AerobicErosion(Convert.ToDouble(args[2]), Convert.ToDouble(args[3]), Convert.ToDouble(args[4]), Convert.ToDouble(args[5]), Convert.ToInt32(args[6]), Convert.ToBoolean(args[7]));
- break;
- case "thermal":
- heightmap.thermalWeathering(Convert.ToDouble(args[2]), Convert.ToInt32(args[3]), Convert.ToDouble(args[4]));
- break;
- default:
- resultText = "Unknown erosion type";
- return false;
- }
- break;
-
- case "regenerate":
- hills();
- break;
-
- case "rescale":
- setRange(Convert.ToSingle(args[1]), Convert.ToSingle(args[2]));
- break;
-
- case "multiply":
- heightmap *= Convert.ToDouble(args[1]);
- break;
-
- case "load":
- switch (args[1].ToLower())
- {
- case "f32":
- loadFromFileF32(args[2]);
- break;
-
- case "f64":
- loadFromFileF64(args[2]);
- break;
-
- case "img":
- resultText = "Error - IMG mode is presently unsupported.";
- return false;
-
- default:
- resultText = "Unknown image or data format";
- return false;
- }
- break;
-
- case "save":
- switch (args[1].ToLower())
- {
- case "f32":
- writeToFileF32(args[2]);
- break;
-
- case "f64":
- writeToFileF64(args[2]);
- break;
-
- case "grdmap":
- exportImage(args[2], args[3]);
- break;
-
- default:
- resultText = "Unknown image or data format";
- return false;
- }
- break;
-
- default:
- resultText = "Unknown terrain command";
- return false;
- }
- return true;
- }
- catch (Exception e)
- {
- resultText = "Error running terrain command: " + e.ToString();
- return false;
- }
- }
-
- ///
- /// Renormalises the array between min and max
- ///
- /// Minimum value of the new array
- /// Maximum value of the new array
- public void setRange(float min, float max)
- {
- heightmap.normalise((double)min, (double)max);
- tainted++;
- }
-
- ///
- /// Loads a file consisting of 256x256 doubles and imports it as an array into the map.
- ///
- /// TODO: Move this to libTerrain itself
- /// The filename of the double array to import
- public void loadFromFileF64(string filename)
- {
- System.IO.FileInfo file = new System.IO.FileInfo(filename);
- System.IO.FileStream s = file.Open(System.IO.FileMode.Open, System.IO.FileAccess.Read);
- System.IO.BinaryReader bs = new System.IO.BinaryReader(s);
- int x, y;
- for (x = 0; x < w; x++)
- {
- for (y = 0; y < h; y++)
- {
- heightmap.map[x, y] = bs.ReadDouble();
- }
- }
-
- bs.Close();
- s.Close();
-
- tainted++;
- }
-
- ///
- /// Loads a file consisting of 256x256 floats and imports it as an array into the map.
- ///
- /// TODO: Move this to libTerrain itself
- /// The filename of the float array to import
- public void loadFromFileF32(string filename)
- {
- System.IO.FileInfo file = new System.IO.FileInfo(filename);
- System.IO.FileStream s = file.Open(System.IO.FileMode.Open, System.IO.FileAccess.Read);
- System.IO.BinaryReader bs = new System.IO.BinaryReader(s);
- int x, y;
- for (x = 0; x < w; x++)
- {
- for (y = 0; y < h; y++)
- {
- heightmap.map[x, y] = (double)bs.ReadSingle();
- }
- }
-
- bs.Close();
- s.Close();
-
- tainted++;
- }
-
- ///
- /// Writes the current terrain heightmap to disk, in the format of a 65536 entry double[] array.
- ///
- /// The desired output filename
- public void writeToFileF64(string filename)
- {
- System.IO.FileInfo file = new System.IO.FileInfo(filename);
- System.IO.FileStream s = file.Open(System.IO.FileMode.CreateNew, System.IO.FileAccess.Write);
- System.IO.BinaryWriter bs = new System.IO.BinaryWriter(s);
-
- int x, y;
- for (x = 0; x < w; x++)
- {
- for (y = 0; y < h; y++)
- {
- bs.Write(heightmap.get(x,y));
- }
- }
-
- bs.Close();
- s.Close();
- }
-
- ///
- /// Writes the current terrain heightmap to disk, in the format of a 65536 entry float[] array
- ///
- /// The desired output filename
- public void writeToFileF32(string filename)
- {
- System.IO.FileInfo file = new System.IO.FileInfo(filename);
- System.IO.FileStream s = file.Open(System.IO.FileMode.CreateNew, System.IO.FileAccess.Write);
- System.IO.BinaryWriter bs = new System.IO.BinaryWriter(s);
-
- int x, y;
- for (x = 0; x < w; x++)
- {
- for (y = 0; y < h; y++)
- {
- bs.Write((float)heightmap.get(x, y));
- }
- }
-
- bs.Close();
- s.Close();
- }
-
- ///
- /// Sets the random seed to be used by procedural functions which involve random numbers.
- ///
- /// The desired seed
- public void setSeed(int val)
- {
- heightmap.seed = val;
- }
-
- ///
- /// Raises land in a sphere around the specified coordinates
- ///
- /// Center of the sphere on the X axis
- /// Center of the sphere on the Y axis
- /// The radius of the sphere
- /// Scale the height of the sphere by this amount (recommended 0..2)
- public void raise(double rx, double ry, double size, double amount)
- {
- lock (heightmap)
- {
- heightmap.raise(rx, ry, size, amount);
- }
-
- tainted++;
- }
-
- ///
- /// Lowers the land in a sphere around the specified coordinates
- ///
- /// The center of the sphere at the X axis
- /// The center of the sphere at the Y axis
- /// The radius of the sphere in meters
- /// Scale the height of the sphere by this amount (recommended 0..2)
- public void lower(double rx, double ry, double size, double amount)
- {
- lock (heightmap)
- {
- heightmap.lower(rx, ry, size, amount);
- }
-
- tainted++;
- }
-
- ///
- /// Generates a simple set of hills in the shape of an island
- ///
- public void hills()
- {
- lock (heightmap)
- {
- heightmap.hillsSpheres(200, 20, 40, true, true, false);
- heightmap.normalise();
- heightmap *= 60.0; // Raise to 60m
- }
-
- tainted++;
- }
-
- ///
- /// Multiplies the heightfield by val
- ///
- /// The heightfield
- /// The multiplier
- ///
- public static TerrainEngine operator *(TerrainEngine meep, Double val) {
- meep.heightmap *= val;
- meep.tainted++;
- return meep;
- }
-
- ///
- /// Returns the height at the coordinates x,y
- ///
- /// X Coordinate
- /// Y Coordinate
- ///
- public float this[int x, int y]
- {
- get
- {
- return (float)heightmap.get(x,y);
- }
- set
- {
- tainted++;
- heightmap.set(x,y,(double)value);
- }
- }
-
- ///
- /// Exports the current heightmap to a PNG file
- ///
- /// The destination filename for the image
- /// A 1x*height* image which contains the colour gradient to export with. Must be at least 1x2 pixels, 1x256 or more is ideal.
- public void exportImage(string filename, string gradientmap)
- {
- try
- {
- Bitmap gradientmapLd = new Bitmap(gradientmap);
-
- int pallete = gradientmapLd.Width;
-
- Bitmap bmp = new Bitmap(heightmap.w, heightmap.h);
- Color[] colours = new Color[pallete];
-
- for (int i = 0; i < pallete; i++)
- {
- colours[i] = gradientmapLd.GetPixel(1, i);
- }
-
- Channel copy = heightmap.copy();
- for (int x = 0; x < copy.w; x++)
- {
- for (int y = 0; y < copy.h; y++)
- {
- // 512 is the largest possible height before colours clamp
- int colorindex = (int)(Math.Max(Math.Min(1.0, copy.get(x, y) / 512.0), 0.0) * pallete);
- bmp.SetPixel(x, y, colours[colorindex]);
- }
- }
-
- bmp.Save(filename, System.Drawing.Imaging.ImageFormat.Png);
- }
- catch (Exception e)
- {
- Console.WriteLine("Failed generating terrain map: " + e.ToString());
- }
- }
- }
-}
--
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