From 2b42ea0a429c722bd7c5c67d3815c2ddc8399e78 Mon Sep 17 00:00:00 2001
From: MW
Date: Wed, 25 Jul 2007 18:19:38 +0000
Subject: Start of the OpenSim library , for now only contains a few textures.
---
.../Channel/Manipulators/ThermalWeathering.cs | 224 ++++++++++-----------
1 file changed, 112 insertions(+), 112 deletions(-)
(limited to 'OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Channel/Manipulators/ThermalWeathering.cs')
diff --git a/OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Channel/Manipulators/ThermalWeathering.cs b/OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Channel/Manipulators/ThermalWeathering.cs
index 07c7d66..695d501 100644
--- a/OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Channel/Manipulators/ThermalWeathering.cs
+++ b/OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Channel/Manipulators/ThermalWeathering.cs
@@ -1,112 +1,112 @@
-/*
-* 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.Text;
-
-namespace libTerrain
-{
- partial class Channel
- {
- ///
- /// A thermal weathering implementation based on Musgrave's original 1989 algorithm. This is Adam's custom implementation which may differ slightly from the original.
- ///
- /// The rock angle (represented as a dy/dx ratio) at which point it will be succeptible to breakage
- /// The number of erosion rounds
- /// The amount of rock to carry each round
- public Channel ThermalWeathering(double talus, int rounds, double c)
- {
- SetDiff();
-
- double[,] lastFrame;
- double[,] thisFrame;
-
- lastFrame = (double[,])map.Clone();
- thisFrame = (double[,])map.Clone();
-
- NeighbourSystem type = NeighbourSystem.Moore; // Using moore neighbourhood (twice as computationally expensive)
- int NEIGHBOUR_ME = 4; // I am always 4 in both systems.
-
- int NEIGHBOUR_MAX = type == NeighbourSystem.Moore ? 9 : 5;
-
- int frames = rounds; // Number of thermal erosion iterations to run
- int i, j;
- int x, y;
-
- for (i = 0; i < frames; i++)
- {
- for (x = 0; x < w; x++)
- {
- for (y = 0; y < h; y++)
- {
- for (j = 0; j < NEIGHBOUR_MAX; j++)
- {
- if (j != NEIGHBOUR_ME)
- {
- int[] coords = Neighbours(type, j);
-
- coords[0] += x;
- coords[1] += y;
-
- if (coords[0] > w - 1)
- coords[0] = w - 1;
- if (coords[1] > h - 1)
- coords[1] = h - 1;
- if (coords[0] < 0)
- coords[0] = 0;
- if (coords[1] < 0)
- coords[1] = 0;
-
- double heightF = thisFrame[x, y];
- double target = thisFrame[coords[0], coords[1]];
-
- if (target > heightF + talus)
- {
- double calc = c * ((target - heightF) - talus);
- heightF += calc;
- target -= calc;
- }
-
- thisFrame[x, y] = heightF;
- thisFrame[coords[0], coords[1]] = target;
-
- }
- }
- }
- }
- lastFrame = (double[,])thisFrame.Clone();
- }
-
- map = thisFrame;
-
- Normalise(); // Just to guaruntee a smooth 0..1 value
- return this;
- }
- }
-}
+/*
+* 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.Text;
+
+namespace libTerrain
+{
+ partial class Channel
+ {
+ ///
+ /// A thermal weathering implementation based on Musgrave's original 1989 algorithm. This is Adam's custom implementation which may differ slightly from the original.
+ ///
+ /// The rock angle (represented as a dy/dx ratio) at which point it will be succeptible to breakage
+ /// The number of erosion rounds
+ /// The amount of rock to carry each round
+ public Channel ThermalWeathering(double talus, int rounds, double c)
+ {
+ SetDiff();
+
+ double[,] lastFrame;
+ double[,] thisFrame;
+
+ lastFrame = (double[,])map.Clone();
+ thisFrame = (double[,])map.Clone();
+
+ NeighbourSystem type = NeighbourSystem.Moore; // Using moore neighbourhood (twice as computationally expensive)
+ int NEIGHBOUR_ME = 4; // I am always 4 in both systems.
+
+ int NEIGHBOUR_MAX = type == NeighbourSystem.Moore ? 9 : 5;
+
+ int frames = rounds; // Number of thermal erosion iterations to run
+ int i, j;
+ int x, y;
+
+ for (i = 0; i < frames; i++)
+ {
+ for (x = 0; x < w; x++)
+ {
+ for (y = 0; y < h; y++)
+ {
+ for (j = 0; j < NEIGHBOUR_MAX; j++)
+ {
+ if (j != NEIGHBOUR_ME)
+ {
+ int[] coords = Neighbours(type, j);
+
+ coords[0] += x;
+ coords[1] += y;
+
+ if (coords[0] > w - 1)
+ coords[0] = w - 1;
+ if (coords[1] > h - 1)
+ coords[1] = h - 1;
+ if (coords[0] < 0)
+ coords[0] = 0;
+ if (coords[1] < 0)
+ coords[1] = 0;
+
+ double heightF = thisFrame[x, y];
+ double target = thisFrame[coords[0], coords[1]];
+
+ if (target > heightF + talus)
+ {
+ double calc = c * ((target - heightF) - talus);
+ heightF += calc;
+ target -= calc;
+ }
+
+ thisFrame[x, y] = heightF;
+ thisFrame[coords[0], coords[1]] = target;
+
+ }
+ }
+ }
+ }
+ lastFrame = (double[,])thisFrame.Clone();
+ }
+
+ map = thisFrame;
+
+ Normalise(); // Just to guaruntee a smooth 0..1 value
+ return this;
+ }
+ }
+}
--
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