opensim-development – Blame information for rev 1
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1 | eva | 1 | /* |
2 | * Copyright (c) Contributors, http://opensimulator.org/ |
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3 | * See CONTRIBUTORS.TXT for a full list of copyright holders. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions are met: |
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7 | * * Redistributions of source code must retain the above copyright |
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8 | * notice, this list of conditions and the following disclaimer. |
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9 | * * Redistributions in binary form must reproduce the above copyright |
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10 | * notice, this list of conditions and the following disclaimer in the |
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11 | * documentation and/or other materials provided with the distribution. |
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12 | * * Neither the name of the OpenSimulator Project nor the |
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13 | * names of its contributors may be used to endorse or promote products |
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14 | * derived from this software without specific prior written permission. |
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15 | * |
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16 | * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY |
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17 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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18 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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19 | * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY |
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20 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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21 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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22 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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23 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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25 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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26 | */ |
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27 | |||
28 | using OpenSim.Region.Framework.Interfaces; |
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29 | using OpenSim.Region.Framework.Scenes; |
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30 | |||
31 | namespace OpenSim.Region.CoreModules.World.Terrain.PaintBrushes |
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32 | { |
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33 | /// <summary> |
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34 | /// Thermal Weathering Paint Brush |
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35 | /// </summary> |
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36 | public class WeatherSphere : ITerrainPaintableEffect |
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37 | { |
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38 | private const double talus = 0.2; |
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39 | private const NeighbourSystem type = NeighbourSystem.Moore; |
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40 | |||
41 | #region Supporting Functions |
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42 | |||
43 | private static int[] Neighbours(NeighbourSystem neighbourType, int index) |
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44 | { |
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45 | int[] coord = new int[2]; |
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46 | |||
47 | index++; |
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48 | |||
49 | switch (neighbourType) |
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50 | { |
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51 | case NeighbourSystem.Moore: |
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52 | switch (index) |
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53 | { |
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54 | case 1: |
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55 | coord[0] = -1; |
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56 | coord[1] = -1; |
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57 | break; |
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58 | |||
59 | case 2: |
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60 | coord[0] = -0; |
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61 | coord[1] = -1; |
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62 | break; |
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63 | |||
64 | case 3: |
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65 | coord[0] = +1; |
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66 | coord[1] = -1; |
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67 | break; |
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68 | |||
69 | case 4: |
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70 | coord[0] = -1; |
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71 | coord[1] = -0; |
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72 | break; |
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73 | |||
74 | case 5: |
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75 | coord[0] = -0; |
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76 | coord[1] = -0; |
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77 | break; |
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78 | |||
79 | case 6: |
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80 | coord[0] = +1; |
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81 | coord[1] = -0; |
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82 | break; |
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83 | |||
84 | case 7: |
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85 | coord[0] = -1; |
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86 | coord[1] = +1; |
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87 | break; |
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88 | |||
89 | case 8: |
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90 | coord[0] = -0; |
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91 | coord[1] = +1; |
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92 | break; |
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93 | |||
94 | case 9: |
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95 | coord[0] = +1; |
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96 | coord[1] = +1; |
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97 | break; |
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98 | |||
99 | default: |
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100 | break; |
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101 | } |
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102 | break; |
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103 | |||
104 | case NeighbourSystem.VonNeumann: |
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105 | switch (index) |
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106 | { |
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107 | case 1: |
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108 | coord[0] = 0; |
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109 | coord[1] = -1; |
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110 | break; |
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111 | |||
112 | case 2: |
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113 | coord[0] = -1; |
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114 | coord[1] = 0; |
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115 | break; |
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116 | |||
117 | case 3: |
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118 | coord[0] = +1; |
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119 | coord[1] = 0; |
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120 | break; |
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121 | |||
122 | case 4: |
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123 | coord[0] = 0; |
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124 | coord[1] = +1; |
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125 | break; |
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126 | |||
127 | case 5: |
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128 | coord[0] = -0; |
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129 | coord[1] = -0; |
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130 | break; |
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131 | |||
132 | default: |
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133 | break; |
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134 | } |
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135 | break; |
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136 | } |
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137 | |||
138 | return coord; |
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139 | } |
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140 | |||
141 | private enum NeighbourSystem |
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142 | { |
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143 | Moore, |
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144 | VonNeumann |
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145 | } ; |
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146 | |||
147 | #endregion |
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148 | |||
149 | #region ITerrainPaintableEffect Members |
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150 | |||
151 | public void PaintEffect(ITerrainChannel map, bool[,] mask, double rx, double ry, double rz, double strength, double duration) |
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152 | { |
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153 | strength = TerrainUtil.MetersToSphericalStrength(strength); |
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154 | |||
155 | int x; |
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156 | |||
157 | for (x = 0; x < map.Width; x++) |
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158 | { |
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159 | int y; |
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160 | for (y = 0; y < map.Height; y++) |
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161 | { |
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162 | if (!mask[x,y]) |
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163 | continue; |
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164 | |||
165 | double z = TerrainUtil.SphericalFactor(x, y, rx, ry, strength); |
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166 | |||
167 | if (z > 0) // add in non-zero amount |
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168 | { |
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169 | const int NEIGHBOUR_ME = 4; |
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170 | const int NEIGHBOUR_MAX = 9; |
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171 | |||
172 | for (int j = 0; j < NEIGHBOUR_MAX; j++) |
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173 | { |
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174 | if (j != NEIGHBOUR_ME) |
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175 | { |
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176 | int[] coords = Neighbours(type, j); |
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177 | |||
178 | coords[0] += x; |
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179 | coords[1] += y; |
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180 | |||
181 | if (coords[0] > map.Width - 1) |
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182 | continue; |
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183 | if (coords[1] > map.Height - 1) |
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184 | continue; |
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185 | if (coords[0] < 0) |
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186 | continue; |
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187 | if (coords[1] < 0) |
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188 | continue; |
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189 | |||
190 | double heightF = map[x, y]; |
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191 | double target = map[coords[0], coords[1]]; |
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192 | |||
193 | if (target > heightF + talus) |
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194 | { |
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195 | double calc = duration * ((target - heightF) - talus) * z; |
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196 | heightF += calc; |
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197 | target -= calc; |
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198 | } |
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199 | |||
200 | map[x, y] = heightF; |
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201 | map[coords[0], coords[1]] = target; |
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202 | } |
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203 | } |
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204 | } |
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205 | } |
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206 | } |
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207 | } |
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208 | |||
209 | #endregion |
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210 | } |
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211 | } |