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author | Adam Frisby | 2008-04-30 21:22:29 +0000 |
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committer | Adam Frisby | 2008-04-30 21:22:29 +0000 |
commit | 4a8c1e4393ac64c84b03aeb16bacb9ddd0a2fae6 (patch) | |
tree | 49dde0575502e89aeed428b4190c68306e929b69 /OpenSim/Region/Environment/Modules/World/Terrain/PaintBrushes/FlattenSphere.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 'OpenSim/Region/Environment/Modules/World/Terrain/PaintBrushes/FlattenSphere.cs')
-rw-r--r-- | OpenSim/Region/Environment/Modules/World/Terrain/PaintBrushes/FlattenSphere.cs | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/OpenSim/Region/Environment/Modules/World/Terrain/PaintBrushes/FlattenSphere.cs b/OpenSim/Region/Environment/Modules/World/Terrain/PaintBrushes/FlattenSphere.cs new file mode 100644 index 0000000..6a5a166 --- /dev/null +++ b/OpenSim/Region/Environment/Modules/World/Terrain/PaintBrushes/FlattenSphere.cs | |||
@@ -0,0 +1,127 @@ | |||
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.World.Terrain.PaintBrushes | ||
31 | { | ||
32 | public class FlattenSphere : ITerrainPaintableEffect | ||
33 | { | ||
34 | // TODO: unused | ||
35 | // private double GetBilinearInterpolate(double x, double y, ITerrainChannel map) | ||
36 | // { | ||
37 | // int w = map.Width; | ||
38 | // int h = map.Height; | ||
39 | |||
40 | // if (x > w - 2.0) | ||
41 | // x = w - 2.0; | ||
42 | // if (y > h - 2.0) | ||
43 | // y = h - 2.0; | ||
44 | // if (x < 0.0) | ||
45 | // x = 0.0; | ||
46 | // if (y < 0.0) | ||
47 | // y = 0.0; | ||
48 | |||
49 | // int stepSize = 1; | ||
50 | // double h00 = map[(int)x, (int)y]; | ||
51 | // double h10 = map[(int)x + stepSize, (int)y]; | ||
52 | // double h01 = map[(int)x, (int)y + stepSize]; | ||
53 | // double h11 = map[(int)x + stepSize, (int)y + stepSize]; | ||
54 | // double h1 = h00; | ||
55 | // double h2 = h10; | ||
56 | // double h3 = h01; | ||
57 | // double h4 = h11; | ||
58 | // double a00 = h1; | ||
59 | // double a10 = h2 - h1; | ||
60 | // double a01 = h3 - h1; | ||
61 | // double a11 = h1 - h2 - h3 + h4; | ||
62 | // double partialx = x - (int)x; | ||
63 | // double partialz = y - (int)y; | ||
64 | // double hi = a00 + (a10 * partialx) + (a01 * partialz) + (a11 * partialx * partialz); | ||
65 | // return hi; | ||
66 | // } | ||
67 | |||
68 | #region ITerrainPaintableEffect Members | ||
69 | |||
70 | public void PaintEffect(ITerrainChannel map, double rx, double ry, double strength, double duration) | ||
71 | { | ||
72 | strength = TerrainUtil.MetersToSphericalStrength(strength); | ||
73 | |||
74 | int x, y; | ||
75 | double[,] tweak = new double[map.Width,map.Height]; | ||
76 | |||
77 | double area = strength; | ||
78 | double step = strength / 4.0; | ||
79 | |||
80 | double sum = 0.0; | ||
81 | double step2 = 0.0; | ||
82 | double avg = 0.0; | ||
83 | |||
84 | // compute delta map | ||
85 | for (x = 0; x < map.Width; x++) | ||
86 | { | ||
87 | for (y = 0; y < map.Height; y++) | ||
88 | { | ||
89 | double z = SphericalFactor(x, y, rx, ry, strength); | ||
90 | |||
91 | if (z > 0) // add in non-zero amount | ||
92 | { | ||
93 | sum += map[x, y] * z; | ||
94 | step2 += z; | ||
95 | } | ||
96 | } | ||
97 | } | ||
98 | |||
99 | avg = sum / step2; | ||
100 | |||
101 | // blend in map | ||
102 | for (x = 0; x < map.Width; x++) | ||
103 | { | ||
104 | for (y = 0; y < map.Height; y++) | ||
105 | { | ||
106 | double z = SphericalFactor(x, y, rx, ry, strength) * duration; | ||
107 | |||
108 | if (z > 0) // add in non-zero amount | ||
109 | { | ||
110 | if (z > 1.0) | ||
111 | z = 1.0; | ||
112 | |||
113 | map[x, y] = (map[x, y] * (1.0 - z)) + (avg * z); | ||
114 | } | ||
115 | } | ||
116 | } | ||
117 | } | ||
118 | |||
119 | #endregion | ||
120 | |||
121 | private double SphericalFactor(double x, double y, double rx, double ry, double size) | ||
122 | { | ||
123 | double z = size * size - ((x - rx) * (x - rx) + (y - ry) * (y - ry)); | ||
124 | return z; | ||
125 | } | ||
126 | } | ||
127 | } \ No newline at end of file | ||