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author | Adam Frisby | 2008-03-08 22:53:10 +0000 |
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committer | Adam Frisby | 2008-03-08 22:53:10 +0000 |
commit | 6ecc1066b1cd2afe76a4f123d529d2aa32e4cde9 (patch) | |
tree | b4f4ce35fc8c48ad85efb5ba45807fcaa2e4c96c /OpenSim/Region/Environment/Modules | |
parent | Thank you kindly Grumly57 for a patch to solve: (diff) | |
download | opensim-SC_OLD-6ecc1066b1cd2afe76a4f123d529d2aa32e4cde9.zip opensim-SC_OLD-6ecc1066b1cd2afe76a4f123d529d2aa32e4cde9.tar.gz opensim-SC_OLD-6ecc1066b1cd2afe76a4f123d529d2aa32e4cde9.tar.bz2 opensim-SC_OLD-6ecc1066b1cd2afe76a4f123d529d2aa32e4cde9.tar.xz |
* Added Thermal Weathering paint brush to Terrain Module.
Diffstat (limited to '')
-rw-r--r-- | OpenSim/Region/Environment/Modules/Terrain/PaintBrushes/WeatherSphere.cs | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/OpenSim/Region/Environment/Modules/Terrain/PaintBrushes/WeatherSphere.cs b/OpenSim/Region/Environment/Modules/Terrain/PaintBrushes/WeatherSphere.cs new file mode 100644 index 0000000..17207f8 --- /dev/null +++ b/OpenSim/Region/Environment/Modules/Terrain/PaintBrushes/WeatherSphere.cs | |||
@@ -0,0 +1,243 @@ | |||
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 | using OpenSim.Region.Environment.Interfaces; | ||
29 | |||
30 | namespace OpenSim.Region.Environment.Modules.Terrain.PaintBrushes | ||
31 | { | ||
32 | /// <summary> | ||
33 | /// Thermal Weathering Paint Brush | ||
34 | /// </summary> | ||
35 | public class WeatherSphere : ITerrainPaintableEffect | ||
36 | { | ||
37 | NeighbourSystem type = NeighbourSystem.Moore; // Parameter | ||
38 | double talus = 0.2; // Number of meters max difference before stop eroding. Tweakage required. | ||
39 | |||
40 | #region Supporting Functions | ||
41 | private enum NeighbourSystem | ||
42 | { | ||
43 | Moore, | ||
44 | VonNeumann | ||
45 | } ; | ||
46 | |||
47 | private int[] Neighbours(NeighbourSystem type, int index) | ||
48 | { | ||
49 | int[] coord = new int[2]; | ||
50 | |||
51 | index++; | ||
52 | |||
53 | switch (type) | ||
54 | { | ||
55 | case NeighbourSystem.Moore: | ||
56 | switch (index) | ||
57 | { | ||
58 | case 1: | ||
59 | coord[0] = -1; | ||
60 | coord[1] = -1; | ||
61 | break; | ||
62 | |||
63 | case 2: | ||
64 | coord[0] = -0; | ||
65 | coord[1] = -1; | ||
66 | break; | ||
67 | |||
68 | case 3: | ||
69 | coord[0] = +1; | ||
70 | coord[1] = -1; | ||
71 | break; | ||
72 | |||
73 | case 4: | ||
74 | coord[0] = -1; | ||
75 | coord[1] = -0; | ||
76 | break; | ||
77 | |||
78 | case 5: | ||
79 | coord[0] = -0; | ||
80 | coord[1] = -0; | ||
81 | break; | ||
82 | |||
83 | case 6: | ||
84 | coord[0] = +1; | ||
85 | coord[1] = -0; | ||
86 | break; | ||
87 | |||
88 | case 7: | ||
89 | coord[0] = -1; | ||
90 | coord[1] = +1; | ||
91 | break; | ||
92 | |||
93 | case 8: | ||
94 | coord[0] = -0; | ||
95 | coord[1] = +1; | ||
96 | break; | ||
97 | |||
98 | case 9: | ||
99 | coord[0] = +1; | ||
100 | coord[1] = +1; | ||
101 | break; | ||
102 | |||
103 | default: | ||
104 | break; | ||
105 | } | ||
106 | break; | ||
107 | |||
108 | case NeighbourSystem.VonNeumann: | ||
109 | switch (index) | ||
110 | { | ||
111 | case 1: | ||
112 | coord[0] = 0; | ||
113 | coord[1] = -1; | ||
114 | break; | ||
115 | |||
116 | case 2: | ||
117 | coord[0] = -1; | ||
118 | coord[1] = 0; | ||
119 | break; | ||
120 | |||
121 | case 3: | ||
122 | coord[0] = +1; | ||
123 | coord[1] = 0; | ||
124 | break; | ||
125 | |||
126 | case 4: | ||
127 | coord[0] = 0; | ||
128 | coord[1] = +1; | ||
129 | break; | ||
130 | |||
131 | case 5: | ||
132 | coord[0] = -0; | ||
133 | coord[1] = -0; | ||
134 | break; | ||
135 | |||
136 | default: | ||
137 | break; | ||
138 | } | ||
139 | break; | ||
140 | } | ||
141 | |||
142 | return coord; | ||
143 | } | ||
144 | |||
145 | private double SphericalFactor(double x, double y, double rx, double ry, double size) | ||
146 | { | ||
147 | double z = size * size - ((x - rx) * (x - rx) + (y - ry) * (y - ry)); | ||
148 | return z; | ||
149 | } | ||
150 | |||
151 | private double GetBilinearInterpolate(double x, double y, ITerrainChannel map) | ||
152 | { | ||
153 | int w = map.Width; | ||
154 | int h = map.Height; | ||
155 | |||
156 | if (x > w - 2.0) | ||
157 | x = w - 2.0; | ||
158 | if (y > h - 2.0) | ||
159 | y = h - 2.0; | ||
160 | if (x < 0.0) | ||
161 | x = 0.0; | ||
162 | if (y < 0.0) | ||
163 | y = 0.0; | ||
164 | |||
165 | int stepSize = 1; | ||
166 | double h00 = map[(int)x, (int)y]; | ||
167 | double h10 = map[(int)x + stepSize, (int)y]; | ||
168 | double h01 = map[(int)x, (int)y + stepSize]; | ||
169 | double h11 = map[(int)x + stepSize, (int)y + stepSize]; | ||
170 | double h1 = h00; | ||
171 | double h2 = h10; | ||
172 | double h3 = h01; | ||
173 | double h4 = h11; | ||
174 | double a00 = h1; | ||
175 | double a10 = h2 - h1; | ||
176 | double a01 = h3 - h1; | ||
177 | double a11 = h1 - h2 - h3 + h4; | ||
178 | double partialx = x - (int)x; | ||
179 | double partialz = y - (int)y; | ||
180 | double hi = a00 + (a10 * partialx) + (a01 * partialz) + (a11 * partialx * partialz); | ||
181 | return hi; | ||
182 | } | ||
183 | |||
184 | #endregion | ||
185 | |||
186 | #region ITerrainPaintableEffect Members | ||
187 | |||
188 | public void PaintEffect(ITerrainChannel map, double rx, double ry, double strength, double duration) | ||
189 | { | ||
190 | int x, y; | ||
191 | |||
192 | for (x = 0; x < map.Width; x++) | ||
193 | { | ||
194 | for (y = 0; y < map.Height; y++) | ||
195 | { | ||
196 | double z = SphericalFactor(x, y, rx, ry, strength); | ||
197 | |||
198 | if (z > 0) // add in non-zero amount | ||
199 | { | ||
200 | int NEIGHBOUR_ME = 4; | ||
201 | |||
202 | int NEIGHBOUR_MAX = type == NeighbourSystem.Moore ? 9 : 5; | ||
203 | |||
204 | for (int j = 0; j < NEIGHBOUR_MAX; j++) | ||
205 | { | ||
206 | if (j != NEIGHBOUR_ME) | ||
207 | { | ||
208 | int[] coords = Neighbours(type, j); | ||
209 | |||
210 | coords[0] += x; | ||
211 | coords[1] += y; | ||
212 | |||
213 | if (coords[0] > map.Width - 1) | ||
214 | coords[0] = map.Width - 1; | ||
215 | if (coords[1] > map.Height - 1) | ||
216 | coords[1] = map.Height - 1; | ||
217 | if (coords[0] < 0) | ||
218 | coords[0] = 0; | ||
219 | if (coords[1] < 0) | ||
220 | coords[1] = 0; | ||
221 | |||
222 | double heightF = map[x, y]; | ||
223 | double target = map[coords[0], coords[1]]; | ||
224 | |||
225 | if (target > heightF + talus) | ||
226 | { | ||
227 | double calc = duration * ((target - heightF) - talus) * z; | ||
228 | heightF += calc; | ||
229 | target -= calc; | ||
230 | } | ||
231 | |||
232 | map[x, y] = heightF; | ||
233 | map[coords[0], coords[1]] = target; | ||
234 | } | ||
235 | } | ||
236 | } | ||
237 | } | ||
238 | } | ||
239 | } | ||
240 | |||
241 | #endregion | ||
242 | } | ||
243 | } | ||