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-rw-r--r--OpenSim/Region/Environment/Modules/World/Terrain/PaintBrushes/OlsenSphere.cs448
1 files changed, 224 insertions, 224 deletions
diff --git a/OpenSim/Region/Environment/Modules/World/Terrain/PaintBrushes/OlsenSphere.cs b/OpenSim/Region/Environment/Modules/World/Terrain/PaintBrushes/OlsenSphere.cs
index dc56cf1..ba01a01 100644
--- a/OpenSim/Region/Environment/Modules/World/Terrain/PaintBrushes/OlsenSphere.cs
+++ b/OpenSim/Region/Environment/Modules/World/Terrain/PaintBrushes/OlsenSphere.cs
@@ -1,225 +1,225 @@
1/* 1/*
2 * Copyright (c) Contributors, http://opensimulator.org/ 2 * Copyright (c) Contributors, http://opensimulator.org/
3 * See CONTRIBUTORS.TXT for a full list of copyright holders. 3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 * 4 *
5 * Redistribution and use in source and binary forms, with or without 5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met: 6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright 7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer. 8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright 9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the 10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution. 11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the OpenSim Project nor the 12 * * Neither the name of the OpenSim Project nor the
13 * names of its contributors may be used to endorse or promote products 13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission. 14 * derived from this software without specific prior written permission.
15 * 15 *
16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY 16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY 19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 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 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 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 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. 25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */ 26 */
27 27
28using System; 28using System;
29using OpenSim.Region.Environment.Interfaces; 29using OpenSim.Region.Environment.Interfaces;
30 30
31namespace OpenSim.Region.Environment.Modules.World.Terrain.PaintBrushes 31namespace OpenSim.Region.Environment.Modules.World.Terrain.PaintBrushes
32{ 32{
33 /// <summary> 33 /// <summary>
34 /// Speed-Optimised Hybrid Erosion Brush 34 /// Speed-Optimised Hybrid Erosion Brush
35 /// 35 ///
36 /// As per Jacob Olsen's Paper 36 /// As per Jacob Olsen's Paper
37 /// http://www.oddlabs.com/download/terrain_generation.pdf 37 /// http://www.oddlabs.com/download/terrain_generation.pdf
38 /// </summary> 38 /// </summary>
39 public class OlsenSphere : ITerrainPaintableEffect 39 public class OlsenSphere : ITerrainPaintableEffect
40 { 40 {
41 private double nConst = 1024.0; 41 private double nConst = 1024.0;
42 private NeighbourSystem type = NeighbourSystem.Moore; // Parameter 42 private NeighbourSystem type = NeighbourSystem.Moore; // Parameter
43 43
44 #region Supporting Functions 44 #region Supporting Functions
45 45
46 private int[] Neighbours(NeighbourSystem type, int index) 46 private int[] Neighbours(NeighbourSystem type, int index)
47 { 47 {
48 int[] coord = new int[2]; 48 int[] coord = new int[2];
49 49
50 index++; 50 index++;
51 51
52 switch (type) 52 switch (type)
53 { 53 {
54 case NeighbourSystem.Moore: 54 case NeighbourSystem.Moore:
55 switch (index) 55 switch (index)
56 { 56 {
57 case 1: 57 case 1:
58 coord[0] = -1; 58 coord[0] = -1;
59 coord[1] = -1; 59 coord[1] = -1;
60 break; 60 break;
61 61
62 case 2: 62 case 2:
63 coord[0] = -0; 63 coord[0] = -0;
64 coord[1] = -1; 64 coord[1] = -1;
65 break; 65 break;
66 66
67 case 3: 67 case 3:
68 coord[0] = +1; 68 coord[0] = +1;
69 coord[1] = -1; 69 coord[1] = -1;
70 break; 70 break;
71 71
72 case 4: 72 case 4:
73 coord[0] = -1; 73 coord[0] = -1;
74 coord[1] = -0; 74 coord[1] = -0;
75 break; 75 break;
76 76
77 case 5: 77 case 5:
78 coord[0] = -0; 78 coord[0] = -0;
79 coord[1] = -0; 79 coord[1] = -0;
80 break; 80 break;
81 81
82 case 6: 82 case 6:
83 coord[0] = +1; 83 coord[0] = +1;
84 coord[1] = -0; 84 coord[1] = -0;
85 break; 85 break;
86 86
87 case 7: 87 case 7:
88 coord[0] = -1; 88 coord[0] = -1;
89 coord[1] = +1; 89 coord[1] = +1;
90 break; 90 break;
91 91
92 case 8: 92 case 8:
93 coord[0] = -0; 93 coord[0] = -0;
94 coord[1] = +1; 94 coord[1] = +1;
95 break; 95 break;
96 96
97 case 9: 97 case 9:
98 coord[0] = +1; 98 coord[0] = +1;
99 coord[1] = +1; 99 coord[1] = +1;
100 break; 100 break;
101 101
102 default: 102 default:
103 break; 103 break;
104 } 104 }
105 break; 105 break;
106 106
107 case NeighbourSystem.VonNeumann: 107 case NeighbourSystem.VonNeumann:
108 switch (index) 108 switch (index)
109 { 109 {
110 case 1: 110 case 1:
111 coord[0] = 0; 111 coord[0] = 0;
112 coord[1] = -1; 112 coord[1] = -1;
113 break; 113 break;
114 114
115 case 2: 115 case 2:
116 coord[0] = -1; 116 coord[0] = -1;
117 coord[1] = 0; 117 coord[1] = 0;
118 break; 118 break;
119 119
120 case 3: 120 case 3:
121 coord[0] = +1; 121 coord[0] = +1;
122 coord[1] = 0; 122 coord[1] = 0;
123 break; 123 break;
124 124
125 case 4: 125 case 4:
126 coord[0] = 0; 126 coord[0] = 0;
127 coord[1] = +1; 127 coord[1] = +1;
128 break; 128 break;
129 129
130 case 5: 130 case 5:
131 coord[0] = -0; 131 coord[0] = -0;
132 coord[1] = -0; 132 coord[1] = -0;
133 break; 133 break;
134 134
135 default: 135 default:
136 break; 136 break;
137 } 137 }
138 break; 138 break;
139 } 139 }
140 140
141 return coord; 141 return coord;
142 } 142 }
143 143
144 private double SphericalFactor(double x, double y, double rx, double ry, double size) 144 private double SphericalFactor(double x, double y, double rx, double ry, double size)
145 { 145 {
146 double z = size * size - ((x - rx) * (x - rx) + (y - ry) * (y - ry)); 146 double z = size * size - ((x - rx) * (x - rx) + (y - ry) * (y - ry));
147 return z; 147 return z;
148 } 148 }
149 149
150 private enum NeighbourSystem 150 private enum NeighbourSystem
151 { 151 {
152 Moore, 152 Moore,
153 VonNeumann 153 VonNeumann
154 } ; 154 } ;
155 155
156 #endregion 156 #endregion
157 157
158 #region ITerrainPaintableEffect Members 158 #region ITerrainPaintableEffect Members
159 159
160 public void PaintEffect(ITerrainChannel map, double rx, double ry, double strength, double duration) 160 public void PaintEffect(ITerrainChannel map, double rx, double ry, double strength, double duration)
161 { 161 {
162 strength = TerrainUtil.MetersToSphericalStrength(strength); 162 strength = TerrainUtil.MetersToSphericalStrength(strength);
163 163
164 int x, y; 164 int x, y;
165 165
166 for (x = 0; x < map.Width; x++) 166 for (x = 0; x < map.Width; x++)
167 { 167 {
168 for (y = 0; y < map.Height; y++) 168 for (y = 0; y < map.Height; y++)
169 { 169 {
170 double z = SphericalFactor(x, y, rx, ry, strength); 170 double z = SphericalFactor(x, y, rx, ry, strength);
171 171
172 if (z > 0) // add in non-zero amount 172 if (z > 0) // add in non-zero amount
173 { 173 {
174 int NEIGHBOUR_ME = 4; 174 int NEIGHBOUR_ME = 4;
175 int NEIGHBOUR_MAX = type == NeighbourSystem.Moore ? 9 : 5; 175 int NEIGHBOUR_MAX = type == NeighbourSystem.Moore ? 9 : 5;
176 176
177 double max = Double.MinValue; 177 double max = Double.MinValue;
178 int loc = 0; 178 int loc = 0;
179 double cellmax = 0; 179 double cellmax = 0;
180 180
181 181
182 for (int j = 0; j < NEIGHBOUR_MAX; j++) 182 for (int j = 0; j < NEIGHBOUR_MAX; j++)
183 { 183 {
184 if (j != NEIGHBOUR_ME) 184 if (j != NEIGHBOUR_ME)
185 { 185 {
186 int[] coords = Neighbours(type, j); 186 int[] coords = Neighbours(type, j);
187 187
188 coords[0] += x; 188 coords[0] += x;
189 coords[1] += y; 189 coords[1] += y;
190 190
191 if (coords[0] > map.Width - 1) 191 if (coords[0] > map.Width - 1)
192 continue; 192 continue;
193 if (coords[1] > map.Height - 1) 193 if (coords[1] > map.Height - 1)
194 continue; 194 continue;
195 if (coords[0] < 0) 195 if (coords[0] < 0)
196 continue; 196 continue;
197 if (coords[1] < 0) 197 if (coords[1] < 0)
198 continue; 198 continue;
199 199
200 cellmax = map[x, y] - map[coords[0], coords[1]]; 200 cellmax = map[x, y] - map[coords[0], coords[1]];
201 if (cellmax > max) 201 if (cellmax > max)
202 { 202 {
203 max = cellmax; 203 max = cellmax;
204 loc = j; 204 loc = j;
205 } 205 }
206 } 206 }
207 } 207 }
208 208
209 double T = nConst / ((map.Width + map.Height) / 2); 209 double T = nConst / ((map.Width + map.Height) / 2);
210 // Apply results 210 // Apply results
211 if (0 < max && max <= T) 211 if (0 < max && max <= T)
212 { 212 {
213 int[] maxCoords = Neighbours(type, loc); 213 int[] maxCoords = Neighbours(type, loc);
214 double heightDelta = 0.5 * max * z * duration; 214 double heightDelta = 0.5 * max * z * duration;
215 map[x, y] -= heightDelta; 215 map[x, y] -= heightDelta;
216 map[x + maxCoords[0], y + maxCoords[1]] += heightDelta; 216 map[x + maxCoords[0], y + maxCoords[1]] += heightDelta;
217 } 217 }
218 } 218 }
219 } 219 }
220 } 220 }
221 } 221 }
222 222
223 #endregion 223 #endregion
224 } 224 }
225} \ No newline at end of file 225} \ No newline at end of file
generated by cgit v1.1 at 2024-07-01 05:35:45 +0000