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authorAdam Frisby2008-04-30 21:22:29 +0000
committerAdam Frisby2008-04-30 21:22:29 +0000
commit4a8c1e4393ac64c84b03aeb16bacb9ddd0a2fae6 (patch)
tree49dde0575502e89aeed428b4190c68306e929b69 /OpenSim/Region/Environment/Modules/World/Terrain/PaintBrushes/WeatherSphere.cs
parent* Previous commit managed to miss some files despite me hitting 'Select all'. (diff)
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* Commiting a bunch of missed files.
Diffstat (limited to '')
-rw-r--r--OpenSim/Region/Environment/Modules/World/Terrain/PaintBrushes/WeatherSphere.cs207
1 files changed, 207 insertions, 0 deletions
diff --git a/OpenSim/Region/Environment/Modules/World/Terrain/PaintBrushes/WeatherSphere.cs b/OpenSim/Region/Environment/Modules/World/Terrain/PaintBrushes/WeatherSphere.cs
new file mode 100644
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--- /dev/null
+++ b/OpenSim/Region/Environment/Modules/World/Terrain/PaintBrushes/WeatherSphere.cs
@@ -0,0 +1,207 @@
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
28using OpenSim.Region.Environment.Interfaces;
29
30namespace OpenSim.Region.Environment.Modules.World.Terrain.PaintBrushes
31{
32 /// <summary>
33 /// Thermal Weathering Paint Brush
34 /// </summary>
35 public class WeatherSphere : ITerrainPaintableEffect
36 {
37 private double talus = 0.2; // Number of meters max difference before stop eroding. Tweakage required.
38 private NeighbourSystem type = NeighbourSystem.Moore; // Parameter
39
40 #region Supporting Functions
41
42 private int[] Neighbours(NeighbourSystem type, int index)
43 {
44 int[] coord = new int[2];
45
46 index++;
47
48 switch (type)
49 {
50 case NeighbourSystem.Moore:
51 switch (index)
52 {
53 case 1:
54 coord[0] = -1;
55 coord[1] = -1;
56 break;
57
58 case 2:
59 coord[0] = -0;
60 coord[1] = -1;
61 break;
62
63 case 3:
64 coord[0] = +1;
65 coord[1] = -1;
66 break;
67
68 case 4:
69 coord[0] = -1;
70 coord[1] = -0;
71 break;
72
73 case 5:
74 coord[0] = -0;
75 coord[1] = -0;
76 break;
77
78 case 6:
79 coord[0] = +1;
80 coord[1] = -0;
81 break;
82
83 case 7:
84 coord[0] = -1;
85 coord[1] = +1;
86 break;
87
88 case 8:
89 coord[0] = -0;
90 coord[1] = +1;
91 break;
92
93 case 9:
94 coord[0] = +1;
95 coord[1] = +1;
96 break;
97
98 default:
99 break;
100 }
101 break;
102
103 case NeighbourSystem.VonNeumann:
104 switch (index)
105 {
106 case 1:
107 coord[0] = 0;
108 coord[1] = -1;
109 break;
110
111 case 2:
112 coord[0] = -1;
113 coord[1] = 0;
114 break;
115
116 case 3:
117 coord[0] = +1;
118 coord[1] = 0;
119 break;
120
121 case 4:
122 coord[0] = 0;
123 coord[1] = +1;
124 break;
125
126 case 5:
127 coord[0] = -0;
128 coord[1] = -0;
129 break;
130
131 default:
132 break;
133 }
134 break;
135 }
136
137 return coord;
138 }
139
140 private enum NeighbourSystem
141 {
142 Moore,
143 VonNeumann
144 } ;
145
146 #endregion
147
148 #region ITerrainPaintableEffect Members
149
150 public void PaintEffect(ITerrainChannel map, double rx, double ry, double strength, double duration)
151 {
152 strength = TerrainUtil.MetersToSphericalStrength(strength);
153
154 int x, y;
155
156 for (x = 0; x < map.Width; x++)
157 {
158 for (y = 0; y < map.Height; y++)
159 {
160 double z = TerrainUtil.SphericalFactor(x, y, rx, ry, strength);
161
162 if (z > 0) // add in non-zero amount
163 {
164 int NEIGHBOUR_ME = 4;
165
166 int NEIGHBOUR_MAX = type == NeighbourSystem.Moore ? 9 : 5;
167
168 for (int j = 0; j < NEIGHBOUR_MAX; j++)
169 {
170 if (j != NEIGHBOUR_ME)
171 {
172 int[] coords = Neighbours(type, j);
173
174 coords[0] += x;
175 coords[1] += y;
176
177 if (coords[0] > map.Width - 1)
178 continue;
179 if (coords[1] > map.Height - 1)
180 continue;
181 if (coords[0] < 0)
182 continue;
183 if (coords[1] < 0)
184 continue;
185
186 double heightF = map[x, y];
187 double target = map[coords[0], coords[1]];
188
189 if (target > heightF + talus)
190 {
191 double calc = duration * ((target - heightF) - talus) * z;
192 heightF += calc;
193 target -= calc;
194 }
195
196 map[x, y] = heightF;
197 map[coords[0], coords[1]] = target;
198 }
199 }
200 }
201 }
202 }
203 }
204
205 #endregion
206 }
207} \ No newline at end of file
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