From 2a3c79df83e800d5dfe75a1a3b140ed81da2b1d6 Mon Sep 17 00:00:00 2001 From: Sean Dague Date: Mon, 16 Jul 2007 15:40:11 +0000 Subject: changed to native line ending encoding --- .../Region/Terrain.BasicTerrain/TerrainEngine.cs | 1906 ++++++++++---------- 1 file changed, 953 insertions(+), 953 deletions(-) (limited to 'OpenSim/Region/Terrain.BasicTerrain/TerrainEngine.cs') diff --git a/OpenSim/Region/Terrain.BasicTerrain/TerrainEngine.cs b/OpenSim/Region/Terrain.BasicTerrain/TerrainEngine.cs index f017e44..6f3afea 100644 --- a/OpenSim/Region/Terrain.BasicTerrain/TerrainEngine.cs +++ b/OpenSim/Region/Terrain.BasicTerrain/TerrainEngine.cs @@ -1,954 +1,954 @@ -/* -* Copyright (c) Contributors, http://www.openmetaverse.org/ -* See CONTRIBUTORS.TXT for a full list of copyright holders. -* -* Redistribution and use in source and binary forms, with or without -* modification, are permitted provided that the following conditions are met: -* * Redistributions of source code must retain the above copyright -* notice, this list of conditions and the following disclaimer. -* * Redistributions in binary form must reproduce the above copyright -* notice, this list of conditions and the following disclaimer in the -* documentation and/or other materials provided with the distribution. -* * Neither the name of the OpenSim Project nor the -* names of its contributors may be used to endorse or promote products -* derived from this software without specific prior written permission. -* -* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY -* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED -* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE -* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY -* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; -* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND -* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS -* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -* -*/ -using System; -using System.Collections.Generic; -using System.Drawing; -using System.Drawing.Imaging; -using System.IO; -using libTerrain; -using OpenJPEGNet; - -namespace OpenSim.Region.Terrain -{ - public class TerrainCommand - { - public virtual bool run(string[] cmdargs, ref string output) - { - return false; - } - - public string args; - public string help; - } - - public class TerrainEngine - { - /// - /// Plugin library for scripts - /// - public FilterHost customFilters = new FilterHost(); - - /// - /// A [normally] 256x256 heightmap - /// - public Channel heightmap; - - /// - /// A copy of heightmap at the last save point (for reverting) - /// - public Channel revertmap; - - /// - /// Water heightmap (needs clientside mods to work) - /// - public Channel watermap; - - /// - /// 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; - } - - /// - /// Converts the heightmap to a 256x256 value 2D floating point array. Double precision version. - /// - /// An array of 256,256 values containing the heightmap - public double[,] getHeights2DD() - { - return heightmap.map; - } - - /// - /// 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++; - } - - /// - /// Loads a 2D array of values into the heightmap (Double Precision Version) - /// - /// An array of 256,256 float values - public void setHeights2D(double[,] heights) - { - int x, y; - for (x = 0; x < w; x++) - { - for (y = 0; y < h; y++) - { - heightmap.set(x, y, heights[x, y]); - } - } - tainted++; - } - - /// - /// Swaps the two heightmap buffers (the 'revert map' and the heightmap) - /// - public void swapRevertMaps() - { - Channel backup = heightmap.copy(); - heightmap = revertmap; - revertmap = backup; - } - - /// - /// Saves the current heightmap into the revertmap - /// - public void saveRevertMap() - { - revertmap = heightmap.copy(); - } - - /// - /// 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 simName) - { - string command = args[0]; - - try - { - - switch (command) - { - case "help": - resultText += "terrain regenerate - rebuilds the sims terrain using a default algorithm\n"; - resultText += "terrain voronoi - generates a worley fractal with X points per block"; - resultText += "terrain seed - sets the random seed value to \n"; - resultText += "terrain load - loads a terrain from disk, type can be 'F32', 'F64', 'RAW' or 'IMG'\n"; - resultText += "terrain save - saves a terrain to disk, type can be 'F32', 'F64', 'PNG', 'RAW' or 'HIRAW'\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"; - resultText += "terrain revert - reverts the terrain to the stored original\n"; - resultText += "terrain bake - saves the current terrain into the revert map\n"; - resultText += "terrain csfilter - loads a new filter from the specified .cs file\n"; - resultText += "terrain jsfilter - loads a new filter from the specified .js file\n"; - foreach (KeyValuePair filter in customFilters.filters) - { - resultText += filter.Value.Help(); - } - - return false; - - case "revert": - swapRevertMaps(); - saveRevertMap(); - break; - - case "bake": - saveRevertMap(); - break; - - case "seed": - setSeed(Convert.ToInt32(args[1])); - break; - - case "erode": - return consoleErosion(args, ref resultText); - - case "voronoi": - double[] c = new double[2]; - c[0] = -1; - c[1] = 1; - heightmap.voronoiDiagram(Convert.ToInt32(args[1]), Convert.ToInt32(args[2]), c); - break; - - case "hills": - return consoleHills(args, ref resultText); - - 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": - args[2].Replace("%name%", simName); - switch (args[1].ToLower()) - { - case "f32": - loadFromFileF32(args[2]); - break; - - case "f64": - loadFromFileF64(args[2]); - break; - - case "raw": - loadFromFileSLRAW(args[2]); - break; - - case "img": - heightmap.loadImage(args[2]); - return false; - - default: - resultText = "Unknown image or data format"; - return false; - } - break; - - case "save": - args[2].Replace("%name%", simName); - switch (args[1].ToLower()) - { - case "f32": - writeToFileF32(args[2]); - break; - - case "f64": - writeToFileF64(args[2]); - break; - - case "grdmap": - exportImage(args[2], args[3]); - break; - - case "png": - heightmap.saveImage(args[2]); - break; - - case "raw": - writeToFileRAW(args[2]); - break; - - case "hiraw": - writeToFileHiRAW(args[2]); - break; - - default: - resultText = "Unknown image or data format"; - return false; - } - break; - - case "csfilter": - customFilters.LoadFilterCSharp(args[1]); - break; - case "jsfilter": - customFilters.LoadFilterJScript(args[1]); - break; - - default: - // Run any custom registered filters - if (customFilters.filters.ContainsKey(command)) - { - customFilters.filters[command].Filter(heightmap, args); - break; - } - else - { - resultText = "Unknown terrain command"; - return false; - } - } - return true; - } - catch (Exception e) - { - resultText = "Error running terrain command: " + e.ToString(); - return false; - } - } - - private bool consoleErosion(string[] args, ref string resultText) - { - 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; - } - return true; - } - - private bool consoleHills(string[] args, ref string resultText) - { - int count; - double sizeMin; - double sizeRange; - bool island; - bool additive; - bool noisy; - - if (args.GetLength(0) > 2) - { - count = Convert.ToInt32(args[2]); - sizeMin = Convert.ToDouble(args[3]); - sizeRange = Convert.ToDouble(args[4]); - island = Convert.ToBoolean(args[5]); - additive = Convert.ToBoolean(args[6]); - noisy = Convert.ToBoolean(args[7]); - } - else - { - count = 200; - sizeMin = 20; - sizeRange = 40; - island = true; - additive = true; - noisy = false; - } - - switch (args[1].ToLower()) - { - case "blocks": - heightmap.hillsBlocks(count, sizeMin, sizeRange, island, additive, noisy); - break; - case "cones": - heightmap.hillsCones(count, sizeMin, sizeRange, island, additive, noisy); - break; - case "spheres": - heightmap.hillsSpheres(count, sizeMin, sizeRange, island, additive, noisy); - break; - case "squared": - heightmap.hillsSquared(count, sizeMin, sizeRange, island, additive, noisy); - break; - default: - resultText = "Unknown hills type"; - return false; - } - return true; - } - - /// - /// 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) - { - FileInfo file = new FileInfo(filename); - FileStream s = file.Open(FileMode.Open, FileAccess.Read); - BinaryReader bs = new 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) - { - FileInfo file = new FileInfo(filename); - FileStream s = file.Open(FileMode.Open, FileAccess.Read); - BinaryReader bs = new 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++; - } - - /// - /// Loads a file formatted in the SL .RAW Format used on the main grid - /// - /// This file format stinks and is best avoided. - /// A path to the .RAW format - public void loadFromFileSLRAW(string filename) - { - FileInfo file = new FileInfo(filename); - FileStream s = file.Open(FileMode.Open, FileAccess.Read); - BinaryReader bs = new BinaryReader(s); - int x, y; - for (x = 0; x < w; x++) - { - for (y = 0; y < h; y++) - { - heightmap.map[x, y] = (double)bs.ReadByte() * ((double)bs.ReadByte() / 127.0); - bs.ReadBytes(11); // Advance the stream to next bytes. - } - } - - 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) - { - FileInfo file = new FileInfo(filename); - FileStream s = file.Open(FileMode.CreateNew, FileAccess.Write); - BinaryWriter bs = new 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) - { - FileInfo file = new FileInfo(filename); - FileStream s = file.Open(FileMode.CreateNew, FileAccess.Write); - BinaryWriter bs = new 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(); - } - - /// - /// A very fast LL-RAW file output mechanism - lower precision mechanism but wont take 5 minutes to run either. - /// (is also editable in an image application) - /// - /// Filename to write to - public void writeToFileRAW(string filename) - { - FileInfo file = new FileInfo(filename); - FileStream s = file.Open(FileMode.CreateNew, FileAccess.Write); - BinaryWriter bs = new BinaryWriter(s); - - int x, y; - - // Used for the 'green' channel. - byte avgMultiplier = (byte)heightmap.avg(); - byte backupMultiplier = (byte)revertmap.avg(); - - // Limit the multiplier so it can represent points >64m. - if (avgMultiplier > 196) - avgMultiplier = 196; - if(backupMultiplier > 196) - backupMultiplier = 196; - // Make sure it's at least one to prevent a div by zero - if (avgMultiplier < 1) - avgMultiplier = 1; - if(backupMultiplier < 1) - backupMultiplier = 1; - - for (x = 0; x < w; x++) - { - for (y = 0; y < h; y++) - { - byte red = (byte)(heightmap.get(x, y) / ((double)avgMultiplier / 128.0)); - byte green = avgMultiplier; - byte blue = (byte)watermap.get(x, y); - byte alpha1 = 0; // Land Parcels - byte alpha2 = 0; // For Sale Land - byte alpha3 = 0; // Public Edit Object - byte alpha4 = 0; // Public Edit Land - byte alpha5 = 255; // Safe Land - byte alpha6 = 255; // Flying Allowed - byte alpha7 = 255; // Create Landmark - byte alpha8 = 255; // Outside Scripts - byte alpha9 = (byte)(revertmap.get(x, y) / ((double)backupMultiplier / 128.0)); - byte alpha10 = backupMultiplier; - - bs.Write(red); - bs.Write(green); - bs.Write(blue); - bs.Write(alpha1); - bs.Write(alpha2); - bs.Write(alpha3); - bs.Write(alpha4); - bs.Write(alpha5); - bs.Write(alpha6); - bs.Write(alpha7); - bs.Write(alpha8); - bs.Write(alpha9); - bs.Write(alpha10); - } - } - bs.Close(); - s.Close(); - } - - /// - /// Outputs to a LL compatible RAW in the most efficient manner possible - /// - /// Does not calculate the revert map - /// The filename to output to - public void writeToFileHiRAW(string filename) - { - FileInfo file = new FileInfo(filename); - FileStream s = file.Open(FileMode.CreateNew, FileAccess.Write); - BinaryWriter bs = new BinaryWriter(s); - - // Generate a smegging big lookup table to speed the operation up (it needs it) - double[] lookupTable = new double[65536]; - int i, j, x, y; - for (i = 0; i < 256; i++) - { - for (j = 0; j < 256; j++) - { - lookupTable[i + (j * 256)] = ((double)i * ((double)j / 127.0)); - } - } - - // Output the calculated raw - for (x = 0; x < w; x++) - { - for (y = 0; y < h; y++) - { - double t = heightmap.get(x, y); - double min = double.MaxValue; - int index = 0; - - for (i = 0; i < 65536; i++) - { - if (Math.Abs(t - lookupTable[i]) < min) - { - min = Math.Abs(t - lookupTable[i]); - index = i; - } - } - - byte red = (byte)(index & 0xFF); - byte green = (byte)((index >> 8) & 0xFF); - byte blue = (byte)watermap.get(x, y); - byte alpha1 = 0; // Land Parcels - byte alpha2 = 0; // For Sale Land - byte alpha3 = 0; // Public Edit Object - byte alpha4 = 0; // Public Edit Land - byte alpha5 = 255; // Safe Land - byte alpha6 = 255; // Flying Allowed - byte alpha7 = 255; // Create Landmark - byte alpha8 = 255; // Outside Scripts - byte alpha9 = red; - byte alpha10 = green; - - bs.Write(red); - bs.Write(green); - bs.Write(blue); - bs.Write(alpha1); - bs.Write(alpha2); - bs.Write(alpha3); - bs.Write(alpha4); - bs.Write(alpha5); - bs.Write(alpha6); - bs.Write(alpha7); - bs.Write(alpha8); - bs.Write(alpha9); - bs.Write(alpha10); - } - } - - 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++; - } - - /// - /// Flattens the land under the brush of specified coordinates (spherical mask) - /// - /// Center of sphere - /// Center of sphere - /// Radius of the sphere - /// Thickness of the mask (0..2 recommended) - public void flatten(double rx, double ry, double size, double amount) - { - lock (heightmap) - { - heightmap.flatten(rx, ry, size, amount); - } - - tainted++; - } - - /// - /// Creates noise within the specified bounds - /// - /// Center of the bounding sphere - /// Center of the bounding sphere - /// The radius of the sphere - /// Strength of the mask (0..2) recommended - public void noise(double rx, double ry, double size, double amount) - { - lock (heightmap) - { - Channel smoothed = new Channel(); - smoothed.noise(); - - Channel mask = new Channel(); - mask.raise(rx, ry, size, amount); - - heightmap.blend(smoothed, mask); - } - - tainted++; - } - - /// - /// Reverts land within the specified bounds - /// - /// Center of the bounding sphere - /// Center of the bounding sphere - /// The radius of the sphere - /// Strength of the mask (0..2) recommended - public void revert(double rx, double ry, double size, double amount) - { - lock (heightmap) - { - Channel mask = new Channel(); - mask.raise(rx, ry, size, amount); - - heightmap.blend(revertmap, mask); - } - - tainted++; - } - - /// - /// Smooths land under the brush of specified coordinates (spherical mask) - /// - /// Center of the sphere - /// Center of the sphere - /// Radius of the sphere - /// Thickness of the mask (0..2 recommended) - public void smooth(double rx, double ry, double size, double amount) - { - lock (heightmap) - { - Channel smoothed = heightmap.copy(); - smoothed.smooth(amount); - - Channel mask = new Channel(); - mask.raise(rx,ry,size,amount); - - heightmap.blend(smoothed, mask); - } - - 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++; - } - - /// - /// Wrapper to heightmap.get() - /// - /// X coord - /// Y coord - /// Height at specified coordinates - public double get(int x, int y) - { - return heightmap.get(x, y); - } - - /// - /// Multiplies the heightfield by val - /// - /// The heightfield - /// The multiplier - /// - public static TerrainEngine operator *(TerrainEngine meep, Double val) - { - meep.heightmap *= val; - meep.tainted++; - return meep; - } - - /// - /// 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.Height; - - Bitmap bmp = new Bitmap(heightmap.w, heightmap.h); - Color[] colours = new Color[pallete]; - - for (int i = 0; i < pallete; i++) - { - colours[i] = gradientmapLd.GetPixel(0, 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, ImageFormat.Png); - } - catch (Exception e) - { - Console.WriteLine("Failed generating terrain map: " + e.ToString()); - } - } - - /// - /// Exports the current heightmap in Jpeg2000 format to a byte[] - /// - /// A 1x*height* image which contains the colour gradient to export with. Must be at least 1x2 pixels, 1x256 or more is ideal. - public byte[] exportJpegImage(string gradientmap) - { - byte[] imageData = null; - try - { - Bitmap gradientmapLd = new Bitmap(gradientmap); - - int pallete = gradientmapLd.Height; - - Bitmap bmp = new Bitmap(heightmap.w, heightmap.h); - Color[] colours = new Color[pallete]; - - for (int i = 0; i < pallete; i++) - { - colours[i] = gradientmapLd.GetPixel(0, 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(copy.h - y, x) / 512.0), 0.0) * pallete); - bmp.SetPixel(x, y, colours[colorindex]); - } - } - - //bmp.Save(filename, System.Drawing.Imaging.ImageFormat.Png); - imageData = OpenJPEG.EncodeFromImage(bmp, true ); - - } - catch (Exception e) - { - Console.WriteLine("Failed generating terrain map: " + e.ToString()); - } - - return imageData; - } - } +/* +* Copyright (c) Contributors, http://www.openmetaverse.org/ +* See CONTRIBUTORS.TXT for a full list of copyright holders. +* +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions are met: +* * Redistributions of source code must retain the above copyright +* notice, this list of conditions and the following disclaimer. +* * Redistributions in binary form must reproduce the above copyright +* notice, this list of conditions and the following disclaimer in the +* documentation and/or other materials provided with the distribution. +* * Neither the name of the OpenSim Project nor the +* names of its contributors may be used to endorse or promote products +* derived from this software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY +* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY +* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +* +*/ +using System; +using System.Collections.Generic; +using System.Drawing; +using System.Drawing.Imaging; +using System.IO; +using libTerrain; +using OpenJPEGNet; + +namespace OpenSim.Region.Terrain +{ + public class TerrainCommand + { + public virtual bool run(string[] cmdargs, ref string output) + { + return false; + } + + public string args; + public string help; + } + + public class TerrainEngine + { + /// + /// Plugin library for scripts + /// + public FilterHost customFilters = new FilterHost(); + + /// + /// A [normally] 256x256 heightmap + /// + public Channel heightmap; + + /// + /// A copy of heightmap at the last save point (for reverting) + /// + public Channel revertmap; + + /// + /// Water heightmap (needs clientside mods to work) + /// + public Channel watermap; + + /// + /// 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; + } + + /// + /// Converts the heightmap to a 256x256 value 2D floating point array. Double precision version. + /// + /// An array of 256,256 values containing the heightmap + public double[,] getHeights2DD() + { + return heightmap.map; + } + + /// + /// 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++; + } + + /// + /// Loads a 2D array of values into the heightmap (Double Precision Version) + /// + /// An array of 256,256 float values + public void setHeights2D(double[,] heights) + { + int x, y; + for (x = 0; x < w; x++) + { + for (y = 0; y < h; y++) + { + heightmap.set(x, y, heights[x, y]); + } + } + tainted++; + } + + /// + /// Swaps the two heightmap buffers (the 'revert map' and the heightmap) + /// + public void swapRevertMaps() + { + Channel backup = heightmap.copy(); + heightmap = revertmap; + revertmap = backup; + } + + /// + /// Saves the current heightmap into the revertmap + /// + public void saveRevertMap() + { + revertmap = heightmap.copy(); + } + + /// + /// 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 simName) + { + string command = args[0]; + + try + { + + switch (command) + { + case "help": + resultText += "terrain regenerate - rebuilds the sims terrain using a default algorithm\n"; + resultText += "terrain voronoi - generates a worley fractal with X points per block"; + resultText += "terrain seed - sets the random seed value to \n"; + resultText += "terrain load - loads a terrain from disk, type can be 'F32', 'F64', 'RAW' or 'IMG'\n"; + resultText += "terrain save - saves a terrain to disk, type can be 'F32', 'F64', 'PNG', 'RAW' or 'HIRAW'\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"; + resultText += "terrain revert - reverts the terrain to the stored original\n"; + resultText += "terrain bake - saves the current terrain into the revert map\n"; + resultText += "terrain csfilter - loads a new filter from the specified .cs file\n"; + resultText += "terrain jsfilter - loads a new filter from the specified .js file\n"; + foreach (KeyValuePair filter in customFilters.filters) + { + resultText += filter.Value.Help(); + } + + return false; + + case "revert": + swapRevertMaps(); + saveRevertMap(); + break; + + case "bake": + saveRevertMap(); + break; + + case "seed": + setSeed(Convert.ToInt32(args[1])); + break; + + case "erode": + return consoleErosion(args, ref resultText); + + case "voronoi": + double[] c = new double[2]; + c[0] = -1; + c[1] = 1; + heightmap.voronoiDiagram(Convert.ToInt32(args[1]), Convert.ToInt32(args[2]), c); + break; + + case "hills": + return consoleHills(args, ref resultText); + + 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": + args[2].Replace("%name%", simName); + switch (args[1].ToLower()) + { + case "f32": + loadFromFileF32(args[2]); + break; + + case "f64": + loadFromFileF64(args[2]); + break; + + case "raw": + loadFromFileSLRAW(args[2]); + break; + + case "img": + heightmap.loadImage(args[2]); + return false; + + default: + resultText = "Unknown image or data format"; + return false; + } + break; + + case "save": + args[2].Replace("%name%", simName); + switch (args[1].ToLower()) + { + case "f32": + writeToFileF32(args[2]); + break; + + case "f64": + writeToFileF64(args[2]); + break; + + case "grdmap": + exportImage(args[2], args[3]); + break; + + case "png": + heightmap.saveImage(args[2]); + break; + + case "raw": + writeToFileRAW(args[2]); + break; + + case "hiraw": + writeToFileHiRAW(args[2]); + break; + + default: + resultText = "Unknown image or data format"; + return false; + } + break; + + case "csfilter": + customFilters.LoadFilterCSharp(args[1]); + break; + case "jsfilter": + customFilters.LoadFilterJScript(args[1]); + break; + + default: + // Run any custom registered filters + if (customFilters.filters.ContainsKey(command)) + { + customFilters.filters[command].Filter(heightmap, args); + break; + } + else + { + resultText = "Unknown terrain command"; + return false; + } + } + return true; + } + catch (Exception e) + { + resultText = "Error running terrain command: " + e.ToString(); + return false; + } + } + + private bool consoleErosion(string[] args, ref string resultText) + { + 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; + } + return true; + } + + private bool consoleHills(string[] args, ref string resultText) + { + int count; + double sizeMin; + double sizeRange; + bool island; + bool additive; + bool noisy; + + if (args.GetLength(0) > 2) + { + count = Convert.ToInt32(args[2]); + sizeMin = Convert.ToDouble(args[3]); + sizeRange = Convert.ToDouble(args[4]); + island = Convert.ToBoolean(args[5]); + additive = Convert.ToBoolean(args[6]); + noisy = Convert.ToBoolean(args[7]); + } + else + { + count = 200; + sizeMin = 20; + sizeRange = 40; + island = true; + additive = true; + noisy = false; + } + + switch (args[1].ToLower()) + { + case "blocks": + heightmap.hillsBlocks(count, sizeMin, sizeRange, island, additive, noisy); + break; + case "cones": + heightmap.hillsCones(count, sizeMin, sizeRange, island, additive, noisy); + break; + case "spheres": + heightmap.hillsSpheres(count, sizeMin, sizeRange, island, additive, noisy); + break; + case "squared": + heightmap.hillsSquared(count, sizeMin, sizeRange, island, additive, noisy); + break; + default: + resultText = "Unknown hills type"; + return false; + } + return true; + } + + /// + /// 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) + { + FileInfo file = new FileInfo(filename); + FileStream s = file.Open(FileMode.Open, FileAccess.Read); + BinaryReader bs = new 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) + { + FileInfo file = new FileInfo(filename); + FileStream s = file.Open(FileMode.Open, FileAccess.Read); + BinaryReader bs = new 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++; + } + + /// + /// Loads a file formatted in the SL .RAW Format used on the main grid + /// + /// This file format stinks and is best avoided. + /// A path to the .RAW format + public void loadFromFileSLRAW(string filename) + { + FileInfo file = new FileInfo(filename); + FileStream s = file.Open(FileMode.Open, FileAccess.Read); + BinaryReader bs = new BinaryReader(s); + int x, y; + for (x = 0; x < w; x++) + { + for (y = 0; y < h; y++) + { + heightmap.map[x, y] = (double)bs.ReadByte() * ((double)bs.ReadByte() / 127.0); + bs.ReadBytes(11); // Advance the stream to next bytes. + } + } + + 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) + { + FileInfo file = new FileInfo(filename); + FileStream s = file.Open(FileMode.CreateNew, FileAccess.Write); + BinaryWriter bs = new 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) + { + FileInfo file = new FileInfo(filename); + FileStream s = file.Open(FileMode.CreateNew, FileAccess.Write); + BinaryWriter bs = new 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(); + } + + /// + /// A very fast LL-RAW file output mechanism - lower precision mechanism but wont take 5 minutes to run either. + /// (is also editable in an image application) + /// + /// Filename to write to + public void writeToFileRAW(string filename) + { + FileInfo file = new FileInfo(filename); + FileStream s = file.Open(FileMode.CreateNew, FileAccess.Write); + BinaryWriter bs = new BinaryWriter(s); + + int x, y; + + // Used for the 'green' channel. + byte avgMultiplier = (byte)heightmap.avg(); + byte backupMultiplier = (byte)revertmap.avg(); + + // Limit the multiplier so it can represent points >64m. + if (avgMultiplier > 196) + avgMultiplier = 196; + if(backupMultiplier > 196) + backupMultiplier = 196; + // Make sure it's at least one to prevent a div by zero + if (avgMultiplier < 1) + avgMultiplier = 1; + if(backupMultiplier < 1) + backupMultiplier = 1; + + for (x = 0; x < w; x++) + { + for (y = 0; y < h; y++) + { + byte red = (byte)(heightmap.get(x, y) / ((double)avgMultiplier / 128.0)); + byte green = avgMultiplier; + byte blue = (byte)watermap.get(x, y); + byte alpha1 = 0; // Land Parcels + byte alpha2 = 0; // For Sale Land + byte alpha3 = 0; // Public Edit Object + byte alpha4 = 0; // Public Edit Land + byte alpha5 = 255; // Safe Land + byte alpha6 = 255; // Flying Allowed + byte alpha7 = 255; // Create Landmark + byte alpha8 = 255; // Outside Scripts + byte alpha9 = (byte)(revertmap.get(x, y) / ((double)backupMultiplier / 128.0)); + byte alpha10 = backupMultiplier; + + bs.Write(red); + bs.Write(green); + bs.Write(blue); + bs.Write(alpha1); + bs.Write(alpha2); + bs.Write(alpha3); + bs.Write(alpha4); + bs.Write(alpha5); + bs.Write(alpha6); + bs.Write(alpha7); + bs.Write(alpha8); + bs.Write(alpha9); + bs.Write(alpha10); + } + } + bs.Close(); + s.Close(); + } + + /// + /// Outputs to a LL compatible RAW in the most efficient manner possible + /// + /// Does not calculate the revert map + /// The filename to output to + public void writeToFileHiRAW(string filename) + { + FileInfo file = new FileInfo(filename); + FileStream s = file.Open(FileMode.CreateNew, FileAccess.Write); + BinaryWriter bs = new BinaryWriter(s); + + // Generate a smegging big lookup table to speed the operation up (it needs it) + double[] lookupTable = new double[65536]; + int i, j, x, y; + for (i = 0; i < 256; i++) + { + for (j = 0; j < 256; j++) + { + lookupTable[i + (j * 256)] = ((double)i * ((double)j / 127.0)); + } + } + + // Output the calculated raw + for (x = 0; x < w; x++) + { + for (y = 0; y < h; y++) + { + double t = heightmap.get(x, y); + double min = double.MaxValue; + int index = 0; + + for (i = 0; i < 65536; i++) + { + if (Math.Abs(t - lookupTable[i]) < min) + { + min = Math.Abs(t - lookupTable[i]); + index = i; + } + } + + byte red = (byte)(index & 0xFF); + byte green = (byte)((index >> 8) & 0xFF); + byte blue = (byte)watermap.get(x, y); + byte alpha1 = 0; // Land Parcels + byte alpha2 = 0; // For Sale Land + byte alpha3 = 0; // Public Edit Object + byte alpha4 = 0; // Public Edit Land + byte alpha5 = 255; // Safe Land + byte alpha6 = 255; // Flying Allowed + byte alpha7 = 255; // Create Landmark + byte alpha8 = 255; // Outside Scripts + byte alpha9 = red; + byte alpha10 = green; + + bs.Write(red); + bs.Write(green); + bs.Write(blue); + bs.Write(alpha1); + bs.Write(alpha2); + bs.Write(alpha3); + bs.Write(alpha4); + bs.Write(alpha5); + bs.Write(alpha6); + bs.Write(alpha7); + bs.Write(alpha8); + bs.Write(alpha9); + bs.Write(alpha10); + } + } + + 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++; + } + + /// + /// Flattens the land under the brush of specified coordinates (spherical mask) + /// + /// Center of sphere + /// Center of sphere + /// Radius of the sphere + /// Thickness of the mask (0..2 recommended) + public void flatten(double rx, double ry, double size, double amount) + { + lock (heightmap) + { + heightmap.flatten(rx, ry, size, amount); + } + + tainted++; + } + + /// + /// Creates noise within the specified bounds + /// + /// Center of the bounding sphere + /// Center of the bounding sphere + /// The radius of the sphere + /// Strength of the mask (0..2) recommended + public void noise(double rx, double ry, double size, double amount) + { + lock (heightmap) + { + Channel smoothed = new Channel(); + smoothed.noise(); + + Channel mask = new Channel(); + mask.raise(rx, ry, size, amount); + + heightmap.blend(smoothed, mask); + } + + tainted++; + } + + /// + /// Reverts land within the specified bounds + /// + /// Center of the bounding sphere + /// Center of the bounding sphere + /// The radius of the sphere + /// Strength of the mask (0..2) recommended + public void revert(double rx, double ry, double size, double amount) + { + lock (heightmap) + { + Channel mask = new Channel(); + mask.raise(rx, ry, size, amount); + + heightmap.blend(revertmap, mask); + } + + tainted++; + } + + /// + /// Smooths land under the brush of specified coordinates (spherical mask) + /// + /// Center of the sphere + /// Center of the sphere + /// Radius of the sphere + /// Thickness of the mask (0..2 recommended) + public void smooth(double rx, double ry, double size, double amount) + { + lock (heightmap) + { + Channel smoothed = heightmap.copy(); + smoothed.smooth(amount); + + Channel mask = new Channel(); + mask.raise(rx,ry,size,amount); + + heightmap.blend(smoothed, mask); + } + + 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++; + } + + /// + /// Wrapper to heightmap.get() + /// + /// X coord + /// Y coord + /// Height at specified coordinates + public double get(int x, int y) + { + return heightmap.get(x, y); + } + + /// + /// Multiplies the heightfield by val + /// + /// The heightfield + /// The multiplier + /// + public static TerrainEngine operator *(TerrainEngine meep, Double val) + { + meep.heightmap *= val; + meep.tainted++; + return meep; + } + + /// + /// 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.Height; + + Bitmap bmp = new Bitmap(heightmap.w, heightmap.h); + Color[] colours = new Color[pallete]; + + for (int i = 0; i < pallete; i++) + { + colours[i] = gradientmapLd.GetPixel(0, 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, ImageFormat.Png); + } + catch (Exception e) + { + Console.WriteLine("Failed generating terrain map: " + e.ToString()); + } + } + + /// + /// Exports the current heightmap in Jpeg2000 format to a byte[] + /// + /// A 1x*height* image which contains the colour gradient to export with. Must be at least 1x2 pixels, 1x256 or more is ideal. + public byte[] exportJpegImage(string gradientmap) + { + byte[] imageData = null; + try + { + Bitmap gradientmapLd = new Bitmap(gradientmap); + + int pallete = gradientmapLd.Height; + + Bitmap bmp = new Bitmap(heightmap.w, heightmap.h); + Color[] colours = new Color[pallete]; + + for (int i = 0; i < pallete; i++) + { + colours[i] = gradientmapLd.GetPixel(0, 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(copy.h - y, x) / 512.0), 0.0) * pallete); + bmp.SetPixel(x, y, colours[colorindex]); + } + } + + //bmp.Save(filename, System.Drawing.Imaging.ImageFormat.Png); + imageData = OpenJPEG.EncodeFromImage(bmp, true ); + + } + catch (Exception e) + { + Console.WriteLine("Failed generating terrain map: " + e.ToString()); + } + + return imageData; + } + } } \ No newline at end of file -- cgit v1.1