opensim – Blame information for rev 1
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1 | eva | 1 | /* The MIT License |
2 | * |
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3 | * Copyright (c) 2010 Intel Corporation. |
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4 | * All rights reserved. |
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5 | * |
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6 | * Based on the convexdecomposition library from |
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7 | * <http://codesuppository.googlecode.com> by John W. Ratcliff and Stan Melax. |
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8 | * |
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9 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
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10 | * of this software and associated documentation files (the "Software"), to deal |
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11 | * in the Software without restriction, including without limitation the rights |
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12 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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13 | * copies of the Software, and to permit persons to whom the Software is |
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14 | * furnished to do so, subject to the following conditions: |
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15 | * |
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16 | * The above copyright notice and this permission notice shall be included in |
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17 | * all copies or substantial portions of the Software. |
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18 | * |
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19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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20 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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21 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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22 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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23 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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24 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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25 | * THE SOFTWARE. |
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26 | */ |
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27 | |||
28 | using System; |
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29 | |||
30 | namespace OpenSim.Region.Physics.ConvexDecompositionDotNet |
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31 | { |
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32 | public class int3 |
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33 | { |
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34 | public int x; |
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35 | public int y; |
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36 | public int z; |
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37 | |||
38 | public int3() |
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39 | { |
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40 | } |
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41 | |||
42 | public int3(int _x, int _y, int _z) |
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43 | { |
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44 | x = _x; |
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45 | y = _y; |
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46 | z = _z; |
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47 | } |
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48 | |||
49 | public int this[int i] |
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50 | { |
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51 | get |
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52 | { |
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53 | switch (i) |
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54 | { |
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55 | case 0: return x; |
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56 | case 1: return y; |
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57 | case 2: return z; |
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58 | } |
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59 | throw new ArgumentOutOfRangeException(); |
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60 | } |
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61 | set |
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62 | { |
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63 | switch (i) |
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64 | { |
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65 | case 0: x = value; return; |
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66 | case 1: y = value; return; |
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67 | case 2: z = value; return; |
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68 | } |
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69 | throw new ArgumentOutOfRangeException(); |
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70 | } |
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71 | } |
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72 | |||
73 | public override int GetHashCode() |
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74 | { |
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75 | return x.GetHashCode() ^ y.GetHashCode() ^ z.GetHashCode(); |
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76 | } |
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77 | |||
78 | public override bool Equals(object obj) |
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79 | { |
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80 | int3 i = obj as int3; |
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81 | if (i == null) |
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82 | return false; |
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83 | |||
84 | return this == i; |
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85 | } |
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86 | |||
87 | public static bool operator ==(int3 a, int3 b) |
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88 | { |
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89 | // If both are null, or both are same instance, return true. |
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90 | if (System.Object.ReferenceEquals(a, b)) |
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91 | return true; |
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92 | // If one is null, but not both, return false. |
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93 | if (((object)a == null) || ((object)b == null)) |
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94 | return false; |
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95 | |||
96 | for (int i = 0; i < 3; i++) |
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97 | { |
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98 | if (a[i] != b[i]) |
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99 | return false; |
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100 | } |
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101 | return true; |
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102 | } |
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103 | |||
104 | public static bool operator !=(int3 a, int3 b) |
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105 | { |
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106 | return !(a == b); |
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107 | } |
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108 | |||
109 | public static int3 roll3(int3 a) |
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110 | { |
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111 | int tmp = a[0]; |
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112 | a[0] = a[1]; |
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113 | a[1] = a[2]; |
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114 | a[2] = tmp; |
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115 | return a; |
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116 | } |
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117 | |||
118 | public static bool isa(int3 a, int3 b) |
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119 | { |
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120 | return (a == b || roll3(a) == b || a == roll3(b)); |
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121 | } |
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122 | |||
123 | public static bool b2b(int3 a, int3 b) |
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124 | { |
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125 | return isa(a, new int3(b[2], b[1], b[0])); |
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126 | } |
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127 | } |
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128 | } |