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authorSean Dague2007-07-16 15:40:11 +0000
committerSean Dague2007-07-16 15:40:11 +0000
commit2a3c79df83e800d5dfe75a1a3b140ed81da2b1d6 (patch)
treee3f80ad51736cf17e856547b1bcf956010927434 /libraries/ModifiedBulletX/ModifiedBulletX/Collision/CollisionDispatch/SphereTriangleCollisionAlgorithm.cs
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diff --git a/libraries/ModifiedBulletX/ModifiedBulletX/Collision/CollisionDispatch/SphereTriangleCollisionAlgorithm.cs b/libraries/ModifiedBulletX/ModifiedBulletX/Collision/CollisionDispatch/SphereTriangleCollisionAlgorithm.cs
index 1ca5cfb..00dfaf1 100644
--- a/libraries/ModifiedBulletX/ModifiedBulletX/Collision/CollisionDispatch/SphereTriangleCollisionAlgorithm.cs
+++ b/libraries/ModifiedBulletX/ModifiedBulletX/Collision/CollisionDispatch/SphereTriangleCollisionAlgorithm.cs
@@ -1,100 +1,100 @@
1/* 1/*
2 Bullet for XNA Copyright (c) 2003-2007 Vsevolod Klementjev http://www.codeplex.com/xnadevru 2 Bullet for XNA Copyright (c) 2003-2007 Vsevolod Klementjev http://www.codeplex.com/xnadevru
3 Bullet original C++ version Copyright (c) 2003-2007 Erwin Coumans http://bulletphysics.com 3 Bullet original C++ version Copyright (c) 2003-2007 Erwin Coumans http://bulletphysics.com
4 4
5 This software is provided 'as-is', without any express or implied 5 This software is provided 'as-is', without any express or implied
6 warranty. In no event will the authors be held liable for any damages 6 warranty. In no event will the authors be held liable for any damages
7 arising from the use of this software. 7 arising from the use of this software.
8 8
9 Permission is granted to anyone to use this software for any purpose, 9 Permission is granted to anyone to use this software for any purpose,
10 including commercial applications, and to alter it and redistribute it 10 including commercial applications, and to alter it and redistribute it
11 freely, subject to the following restrictions: 11 freely, subject to the following restrictions:
12 12
13 1. The origin of this software must not be misrepresented; you must not 13 1. The origin of this software must not be misrepresented; you must not
14 claim that you wrote the original software. If you use this software 14 claim that you wrote the original software. If you use this software
15 in a product, an acknowledgment in the product documentation would be 15 in a product, an acknowledgment in the product documentation would be
16 appreciated but is not required. 16 appreciated but is not required.
17 2. Altered source versions must be plainly marked as such, and must not be 17 2. Altered source versions must be plainly marked as such, and must not be
18 misrepresented as being the original software. 18 misrepresented as being the original software.
19 3. This notice may not be removed or altered from any source distribution. 19 3. This notice may not be removed or altered from any source distribution.
20*/ 20*/
21 21
22using System; 22using System;
23using System.Collections.Generic; 23using System.Collections.Generic;
24using System.Text; 24using System.Text;
25using MonoXnaCompactMaths; 25using MonoXnaCompactMaths;
26 26
27namespace XnaDevRu.BulletX 27namespace XnaDevRu.BulletX
28{ 28{
29 /// <summary> 29 /// <summary>
30 /// SphereSphereCollisionAlgorithm provides sphere-sphere collision detection. 30 /// SphereSphereCollisionAlgorithm provides sphere-sphere collision detection.
31 /// Other features are frame-coherency (persistent data) and collision response. 31 /// Other features are frame-coherency (persistent data) and collision response.
32 /// Also provides the most basic sample for custom/user btCollisionAlgorithm 32 /// Also provides the most basic sample for custom/user btCollisionAlgorithm
33 /// </summary> 33 /// </summary>
34 public class SphereTriangleCollisionAlgorithm : CollisionAlgorithm, IDisposable 34 public class SphereTriangleCollisionAlgorithm : CollisionAlgorithm, IDisposable
35 { 35 {
36 private bool _ownManifold; 36 private bool _ownManifold;
37 private PersistentManifold _manifold; 37 private PersistentManifold _manifold;
38 private bool _isSwapped; 38 private bool _isSwapped;
39 39
40 public SphereTriangleCollisionAlgorithm(PersistentManifold manifold, CollisionAlgorithmConstructionInfo collisionAlgorithmConstructionInfo, CollisionObject bodyA, CollisionObject bodyB, bool isSwapped) 40 public SphereTriangleCollisionAlgorithm(PersistentManifold manifold, CollisionAlgorithmConstructionInfo collisionAlgorithmConstructionInfo, CollisionObject bodyA, CollisionObject bodyB, bool isSwapped)
41 : base(collisionAlgorithmConstructionInfo) 41 : base(collisionAlgorithmConstructionInfo)
42 { 42 {
43 _ownManifold = false; 43 _ownManifold = false;
44 _manifold = manifold; 44 _manifold = manifold;
45 _isSwapped = isSwapped; 45 _isSwapped = isSwapped;
46 46
47 if (_manifold == null) 47 if (_manifold == null)
48 { 48 {
49 _manifold = Dispatcher.GetNewManifold(bodyA, bodyB); 49 _manifold = Dispatcher.GetNewManifold(bodyA, bodyB);
50 _ownManifold = true; 50 _ownManifold = true;
51 } 51 }
52 } 52 }
53 53
54 public SphereTriangleCollisionAlgorithm(CollisionAlgorithmConstructionInfo collisionAlgorithmConstructionInfo) 54 public SphereTriangleCollisionAlgorithm(CollisionAlgorithmConstructionInfo collisionAlgorithmConstructionInfo)
55 : base(collisionAlgorithmConstructionInfo) { } 55 : base(collisionAlgorithmConstructionInfo) { }
56 56
57 public override void ProcessCollision(CollisionObject bodyA, CollisionObject bodyB, DispatcherInfo dispatchInfo, ManifoldResult resultOut) 57 public override void ProcessCollision(CollisionObject bodyA, CollisionObject bodyB, DispatcherInfo dispatchInfo, ManifoldResult resultOut)
58 { 58 {
59 if (_manifold == null) 59 if (_manifold == null)
60 return; 60 return;
61 61
62 SphereShape sphere = bodyA.CollisionShape as SphereShape; 62 SphereShape sphere = bodyA.CollisionShape as SphereShape;
63 TriangleShape triangle = bodyB.CollisionShape as TriangleShape; 63 TriangleShape triangle = bodyB.CollisionShape as TriangleShape;
64 64
65 /// report a contact. internally this will be kept persistent, and contact reduction is done 65 /// report a contact. internally this will be kept persistent, and contact reduction is done
66 resultOut.SetPersistentManifold(_manifold); 66 resultOut.SetPersistentManifold(_manifold);
67 SphereTriangleDetector detector = new SphereTriangleDetector(sphere, triangle); 67 SphereTriangleDetector detector = new SphereTriangleDetector(sphere, triangle);
68 68
69 DiscreteCollisionDetectorInterface.ClosestPointInput input = new DiscreteCollisionDetectorInterface.ClosestPointInput(); 69 DiscreteCollisionDetectorInterface.ClosestPointInput input = new DiscreteCollisionDetectorInterface.ClosestPointInput();
70 input.MaximumDistanceSquared = 1e30f;//todo: tighter bounds 70 input.MaximumDistanceSquared = 1e30f;//todo: tighter bounds
71 input.TransformA = bodyA.WorldTransform; 71 input.TransformA = bodyA.WorldTransform;
72 input.TransformB = bodyB.WorldTransform; 72 input.TransformB = bodyB.WorldTransform;
73 73
74 detector.GetClosestPoints(input, resultOut, null); 74 detector.GetClosestPoints(input, resultOut, null);
75 } 75 }
76 76
77 public override float CalculateTimeOfImpact(CollisionObject bodyA, CollisionObject bodyB, DispatcherInfo dispatchInfo, ManifoldResult resultOut) 77 public override float CalculateTimeOfImpact(CollisionObject bodyA, CollisionObject bodyB, DispatcherInfo dispatchInfo, ManifoldResult resultOut)
78 { 78 {
79 //not yet 79 //not yet
80 return 1f; 80 return 1f;
81 } 81 }
82 82
83 public class CreateFunc : CollisionAlgorithmCreateFunction 83 public class CreateFunc : CollisionAlgorithmCreateFunction
84 { 84 {
85 public override CollisionAlgorithm CreateCollisionAlgorithm(CollisionAlgorithmConstructionInfo collisionAlgorithmConstructionInfo, CollisionObject bodyA, CollisionObject bodyB) 85 public override CollisionAlgorithm CreateCollisionAlgorithm(CollisionAlgorithmConstructionInfo collisionAlgorithmConstructionInfo, CollisionObject bodyA, CollisionObject bodyB)
86 { 86 {
87 return new SphereTriangleCollisionAlgorithm(collisionAlgorithmConstructionInfo.Manifold, collisionAlgorithmConstructionInfo, bodyA, bodyB, IsSwapped); 87 return new SphereTriangleCollisionAlgorithm(collisionAlgorithmConstructionInfo.Manifold, collisionAlgorithmConstructionInfo, bodyA, bodyB, IsSwapped);
88 } 88 }
89 } 89 }
90 90
91 #region IDisposable Members 91 #region IDisposable Members
92 public void Dispose() 92 public void Dispose()
93 { 93 {
94 if (_ownManifold) 94 if (_ownManifold)
95 if (_manifold != null) 95 if (_manifold != null)
96 Dispatcher.ReleaseManifold(_manifold); 96 Dispatcher.ReleaseManifold(_manifold);
97 } 97 }
98 #endregion 98 #endregion
99 } 99 }
100} 100}