256 lines
12 KiB
C#
256 lines
12 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 OpenSimulator 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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using System;
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using System.Drawing;
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using System.Reflection;
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using log4net;
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using Nini.Config;
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using OpenSim.Framework;
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using OpenSim.Region.Framework.Interfaces;
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using OpenSim.Region.Framework.Scenes;
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namespace OpenSim.Region.CoreModules.World.LegacyMap
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{
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public class ShadedMapTileRenderer : IMapTileTerrainRenderer
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{
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private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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private static readonly string LogHeader = "[SHADED MAPTILE RENDERER]";
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private Scene m_scene;
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private IConfigSource m_config;
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private Color m_color_water;
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public void Initialise(Scene scene, IConfigSource config)
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{
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m_scene = scene;
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m_config = config;
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string[] configSections = new string[] { "Map", "Startup" };
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m_color_water = System.Drawing.ColorTranslator.FromHtml(Util.GetConfigVarFromSections<string>(m_config, "MapColorWater", configSections, "#1D475F"));
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}
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public void TerrainToBitmap(Bitmap mapbmp)
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{
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m_log.DebugFormat("{0} Generating Maptile Step 1: Terrain", LogHeader);
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int tc = Environment.TickCount;
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ITerrainChannel hm = m_scene.Heightmap;
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if (mapbmp.Width != hm.Width || mapbmp.Height != hm.Height)
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{
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m_log.ErrorFormat("{0} TerrainToBitmap. Passed bitmap wrong dimensions. passed=<{1},{2}>, size=<{3},{4}>",
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LogHeader, mapbmp.Width, mapbmp.Height, hm.Width, hm.Height);
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}
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bool ShadowDebugContinue = true;
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bool terraincorruptedwarningsaid = false;
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float low = 255;
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float high = 0;
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for (int x = 0; x < hm.Width; x++)
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{
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for (int y = 0; y < hm.Height; y++)
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{
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float hmval = (float)hm[x, y];
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if (hmval < low)
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low = hmval;
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if (hmval > high)
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high = hmval;
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}
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}
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float waterHeight = (float)m_scene.RegionInfo.RegionSettings.WaterHeight;
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for (int x = 0; x < hm.Width; x++)
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{
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for (int y = 0; y < hm.Height; y++)
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{
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// Y flip the cordinates for the bitmap: hf origin is lower left, bm origin is upper left
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int yr = ((int)hm.Height - 1) - y;
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float heightvalue = (float)hm[x, y];
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if (heightvalue > waterHeight)
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{
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// scale height value
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// No, that doesn't scale it:
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// heightvalue = low + mid * (heightvalue - low) / mid; => low + (heightvalue - low) * mid / mid = low + (heightvalue - low) * 1 = low + heightvalue - low = heightvalue
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if (Single.IsInfinity(heightvalue) || Single.IsNaN(heightvalue))
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heightvalue = 0;
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else if (heightvalue > 255f)
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heightvalue = 255f;
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else if (heightvalue < 0f)
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heightvalue = 0f;
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Color color = Color.FromArgb((int)heightvalue, 100, (int)heightvalue);
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mapbmp.SetPixel(x, yr, color);
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try
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{
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//X
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// .
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//
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// Shade the terrain for shadows
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if (x < (hm.Width - 1) && yr < (hm.Height - 1))
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{
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float hfvalue = (float)hm[x, y];
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float hfvaluecompare = 0f;
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if ((x + 1 < hm.Width) && (y + 1 < hm.Height))
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{
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hfvaluecompare = (float)hm[x + 1, y + 1]; // light from north-east => look at land height there
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}
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if (Single.IsInfinity(hfvalue) || Single.IsNaN(hfvalue))
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hfvalue = 0f;
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if (Single.IsInfinity(hfvaluecompare) || Single.IsNaN(hfvaluecompare))
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hfvaluecompare = 0f;
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float hfdiff = hfvalue - hfvaluecompare; // => positive if NE is lower, negative if here is lower
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int hfdiffi = 0;
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int hfdiffihighlight = 0;
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float highlightfactor = 0.18f;
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try
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{
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// hfdiffi = Math.Abs((int)((hfdiff * 4) + (hfdiff * 0.5))) + 1;
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hfdiffi = Math.Abs((int)(hfdiff * 4.5f)) + 1;
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if (hfdiff % 1f != 0)
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{
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// hfdiffi = hfdiffi + Math.Abs((int)(((hfdiff % 1) * 0.5f) * 10f) - 1);
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hfdiffi = hfdiffi + Math.Abs((int)((hfdiff % 1f) * 5f) - 1);
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}
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hfdiffihighlight = Math.Abs((int)((hfdiff * highlightfactor) * 4.5f)) + 1;
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if (hfdiff % 1f != 0)
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{
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// hfdiffi = hfdiffi + Math.Abs((int)(((hfdiff % 1) * 0.5f) * 10f) - 1);
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hfdiffihighlight = hfdiffihighlight + Math.Abs((int)(((hfdiff * highlightfactor) % 1f) * 5f) - 1);
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}
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}
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catch (OverflowException)
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{
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m_log.Debug("[MAPTILE]: Shadow failed at value: " + hfdiff.ToString());
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ShadowDebugContinue = false;
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}
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if (hfdiff > 0.3f)
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{
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// NE is lower than here
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// We have to desaturate and lighten the land at the same time
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// we use floats, colors use bytes, so shrink are space down to
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// 0-255
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if (ShadowDebugContinue)
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{
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int r = color.R;
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int g = color.G;
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int b = color.B;
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color = Color.FromArgb((r + hfdiffihighlight < 255) ? r + hfdiffihighlight : 255,
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(g + hfdiffihighlight < 255) ? g + hfdiffihighlight : 255,
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(b + hfdiffihighlight < 255) ? b + hfdiffihighlight : 255);
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}
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}
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else if (hfdiff < -0.3f)
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{
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// here is lower than NE:
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// We have to desaturate and blacken the land at the same time
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// we use floats, colors use bytes, so shrink are space down to
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// 0-255
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if (ShadowDebugContinue)
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{
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if ((x - 1 > 0) && (yr + 1 < hm.Height))
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{
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color = mapbmp.GetPixel(x - 1, yr + 1);
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int r = color.R;
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int g = color.G;
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int b = color.B;
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color = Color.FromArgb((r - hfdiffi > 0) ? r - hfdiffi : 0,
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(g - hfdiffi > 0) ? g - hfdiffi : 0,
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(b - hfdiffi > 0) ? b - hfdiffi : 0);
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mapbmp.SetPixel(x-1, yr+1, color);
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}
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}
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}
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}
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}
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catch (ArgumentException)
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{
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if (!terraincorruptedwarningsaid)
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{
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m_log.WarnFormat("[SHADED MAP TILE RENDERER]: Your terrain is corrupted in region {0}, it might take a few minutes to generate the map image depending on the corruption level", m_scene.RegionInfo.RegionName);
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terraincorruptedwarningsaid = true;
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}
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color = Color.Black;
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mapbmp.SetPixel(x, yr, color);
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}
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}
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else
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{
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// We're under the water level with the terrain, so paint water instead of land
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// Y flip the cordinates
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heightvalue = waterHeight - heightvalue;
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if (Single.IsInfinity(heightvalue) || Single.IsNaN(heightvalue))
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heightvalue = 0f;
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else if (heightvalue > 19f)
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heightvalue = 19f;
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else if (heightvalue < 0f)
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heightvalue = 0f;
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heightvalue = 100f - (heightvalue * 100f) / 19f;
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try
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{
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mapbmp.SetPixel(x, yr, m_color_water);
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}
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catch (ArgumentException)
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{
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if (!terraincorruptedwarningsaid)
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{
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m_log.WarnFormat("[SHADED MAP TILE RENDERER]: Your terrain is corrupted in region {0}, it might take a few minutes to generate the map image depending on the corruption level", m_scene.RegionInfo.RegionName);
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terraincorruptedwarningsaid = true;
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}
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Color black = Color.Black;
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mapbmp.SetPixel(x, (hm.Width - y) - 1, black);
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}
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}
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}
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}
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m_log.Debug("[SHADED MAP TILE RENDERER]: Generating Maptile Step 1: Done in " + (Environment.TickCount - tc) + " ms");
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}
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}
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}
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