diff options
* Removing old libTerrainBSD and associated Plugin & Project.
* Updated prebuild.xml accordingly.
Diffstat (limited to '')
-rw-r--r-- | OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Channel/Manipulators/ThermalWeathering.cs | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Channel/Manipulators/ThermalWeathering.cs b/OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Channel/Manipulators/ThermalWeathering.cs deleted file mode 100644 index 532c2d6..0000000 --- a/OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Channel/Manipulators/ThermalWeathering.cs +++ /dev/null | |||
@@ -1,107 +0,0 @@ | |||
1 | /* | ||
2 | * Copyright (c) Contributors, http://opensimulator.org/ | ||
3 | * See CONTRIBUTORS.TXT for a full list of copyright holders. | ||
4 | * | ||
5 | * Redistribution and use in source and binary forms, with or without | ||
6 | * modification, are permitted provided that the following conditions are met: | ||
7 | * * Redistributions of source code must retain the above copyright | ||
8 | * notice, this list of conditions and the following disclaimer. | ||
9 | * * Redistributions in binary form must reproduce the above copyright | ||
10 | * notice, this list of conditions and the following disclaimer in the | ||
11 | * documentation and/or other materials provided with the distribution. | ||
12 | * * Neither the name of the OpenSim Project nor the | ||
13 | * names of its contributors may be used to endorse or promote products | ||
14 | * derived from this software without specific prior written permission. | ||
15 | * | ||
16 | * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY | ||
17 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | ||
18 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
19 | * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY | ||
20 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | ||
21 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
22 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | ||
23 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
25 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
26 | */ | ||
27 | |||
28 | namespace libTerrain | ||
29 | { | ||
30 | partial class Channel | ||
31 | { | ||
32 | /// <summary> | ||
33 | /// A thermal weathering implementation based on Musgrave's original 1989 algorithm. This is Adam's custom implementation which may differ slightly from the original. | ||
34 | /// </summary> | ||
35 | /// <param name="talus">The rock angle (represented as a dy/dx ratio) at which point it will be succeptible to breakage</param> | ||
36 | /// <param name="rounds">The number of erosion rounds</param> | ||
37 | /// <param name="c">The amount of rock to carry each round</param> | ||
38 | public Channel ThermalWeathering(double talus, int rounds, double c) | ||
39 | { | ||
40 | SetDiff(); | ||
41 | |||
42 | double[,] lastFrame; | ||
43 | double[,] thisFrame; | ||
44 | |||
45 | lastFrame = (double[,]) map.Clone(); | ||
46 | thisFrame = (double[,]) map.Clone(); | ||
47 | |||
48 | NeighbourSystem type = NeighbourSystem.Moore; | ||
49 | // Using moore neighbourhood (twice as computationally expensive) | ||
50 | int NEIGHBOUR_ME = 4; // I am always 4 in both systems. | ||
51 | |||
52 | int NEIGHBOUR_MAX = type == NeighbourSystem.Moore ? 9 : 5; | ||
53 | |||
54 | int frames = rounds; // Number of thermal erosion iterations to run | ||
55 | int i, j; | ||
56 | int x, y; | ||
57 | |||
58 | for (i = 0; i < frames; i++) | ||
59 | { | ||
60 | for (x = 0; x < w; x++) | ||
61 | { | ||
62 | for (y = 0; y < h; y++) | ||
63 | { | ||
64 | for (j = 0; j < NEIGHBOUR_MAX; j++) | ||
65 | { | ||
66 | if (j != NEIGHBOUR_ME) | ||
67 | { | ||
68 | int[] coords = Neighbours(type, j); | ||
69 | |||
70 | coords[0] += x; | ||
71 | coords[1] += y; | ||
72 | |||
73 | if (coords[0] > w - 1) | ||
74 | coords[0] = w - 1; | ||
75 | if (coords[1] > h - 1) | ||
76 | coords[1] = h - 1; | ||
77 | if (coords[0] < 0) | ||
78 | coords[0] = 0; | ||
79 | if (coords[1] < 0) | ||
80 | coords[1] = 0; | ||
81 | |||
82 | double heightF = thisFrame[x, y]; | ||
83 | double target = thisFrame[coords[0], coords[1]]; | ||
84 | |||
85 | if (target > heightF + talus) | ||
86 | { | ||
87 | double calc = c*((target - heightF) - talus); | ||
88 | heightF += calc; | ||
89 | target -= calc; | ||
90 | } | ||
91 | |||
92 | thisFrame[x, y] = heightF; | ||
93 | thisFrame[coords[0], coords[1]] = target; | ||
94 | } | ||
95 | } | ||
96 | } | ||
97 | } | ||
98 | lastFrame = (double[,]) thisFrame.Clone(); | ||
99 | } | ||
100 | |||
101 | map = thisFrame; | ||
102 | |||
103 | Normalise(); // Just to guaruntee a smooth 0..1 value | ||
104 | return this; | ||
105 | } | ||
106 | } | ||
107 | } | ||