diff options
Diffstat (limited to 'OpenSim/Region/Physics/BulletSPlugin/BSLinksetCompound.cs')
-rwxr-xr-x | OpenSim/Region/Physics/BulletSPlugin/BSLinksetCompound.cs | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSLinksetCompound.cs b/OpenSim/Region/Physics/BulletSPlugin/BSLinksetCompound.cs new file mode 100755 index 0000000..1c569b5 --- /dev/null +++ b/OpenSim/Region/Physics/BulletSPlugin/BSLinksetCompound.cs | |||
@@ -0,0 +1,173 @@ | |||
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 copyrightD | ||
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 OpenSimulator 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 | using System; | ||
28 | using System.Collections.Generic; | ||
29 | using System.Text; | ||
30 | |||
31 | using OMV = OpenMetaverse; | ||
32 | |||
33 | namespace OpenSim.Region.Physics.BulletSPlugin | ||
34 | { | ||
35 | public sealed class BSLinksetCompound : BSLinkset | ||
36 | { | ||
37 | // private static string LogHeader = "[BULLETSIM LINKSET CONSTRAINTS]"; | ||
38 | |||
39 | public BSLinksetCompound(BSScene scene, BSPhysObject parent) | ||
40 | { | ||
41 | base.Initialize(scene, parent); | ||
42 | } | ||
43 | |||
44 | // When physical properties are changed the linkset needs to recalculate | ||
45 | // its internal properties. | ||
46 | // This is queued in the 'post taint' queue so the | ||
47 | // refresh will happen once after all the other taints are applied. | ||
48 | public override void Refresh(BSPhysObject requestor) | ||
49 | { | ||
50 | // Queue to happen after all the other taint processing | ||
51 | PhysicsScene.PostTaintObject("BSLinksetcompound.Refresh", requestor.LocalID, delegate() | ||
52 | { | ||
53 | if (HasAnyChildren && IsRoot(requestor)) | ||
54 | RecomputeLinksetCompound(); | ||
55 | }); | ||
56 | } | ||
57 | |||
58 | // The object is going dynamic (physical). Do any setup necessary | ||
59 | // for a dynamic linkset. | ||
60 | // Only the state of the passed object can be modified. The rest of the linkset | ||
61 | // has not yet been fully constructed. | ||
62 | // Return 'true' if any properties updated on the passed object. | ||
63 | // Called at taint-time! | ||
64 | public override bool MakeDynamic(BSPhysObject child) | ||
65 | { | ||
66 | // What is done for each object in BSPrim is what we want. | ||
67 | return false; | ||
68 | } | ||
69 | |||
70 | // The object is going static (non-physical). Do any setup necessary for a static linkset. | ||
71 | // Return 'true' if any properties updated on the passed object. | ||
72 | // This doesn't normally happen -- OpenSim removes the objects from the physical | ||
73 | // world if it is a static linkset. | ||
74 | // Called at taint-time! | ||
75 | public override bool MakeStatic(BSPhysObject child) | ||
76 | { | ||
77 | // What is done for each object in BSPrim is what we want. | ||
78 | return false; | ||
79 | } | ||
80 | |||
81 | // Called at taint-time!! | ||
82 | public override void UpdateProperties(BSPhysObject updated) | ||
83 | { | ||
84 | // Nothing to do for constraints on property updates | ||
85 | } | ||
86 | |||
87 | // Routine called when rebuilding the body of some member of the linkset. | ||
88 | // Destroy all the constraints have have been made to root and set | ||
89 | // up to rebuild the constraints before the next simulation step. | ||
90 | // Returns 'true' of something was actually removed and would need restoring | ||
91 | // Called at taint-time!! | ||
92 | public override bool RemoveBodyDependencies(BSPrim child) | ||
93 | { | ||
94 | bool ret = false; | ||
95 | |||
96 | DetailLog("{0},BSLinksetcompound.RemoveBodyDependencies,removeChildrenForRoot,rID={1},rBody={2}", | ||
97 | child.LocalID, LinksetRoot.LocalID, LinksetRoot.PhysBody.ptr.ToString("X")); | ||
98 | |||
99 | // Cause the current shape to be freed and the new one to be built. | ||
100 | Refresh(LinksetRoot); | ||
101 | |||
102 | return ret; | ||
103 | } | ||
104 | |||
105 | // Companion to RemoveBodyDependencies(). If RemoveBodyDependencies() returns 'true', | ||
106 | // this routine will restore the removed constraints. | ||
107 | // Called at taint-time!! | ||
108 | public override void RestoreBodyDependencies(BSPrim child) | ||
109 | { | ||
110 | // The Refresh operation queued by RemoveBodyDependencies() will build any missing constraints. | ||
111 | } | ||
112 | |||
113 | // ================================================================ | ||
114 | |||
115 | // Add a new child to the linkset. | ||
116 | // Called while LinkActivity is locked. | ||
117 | protected override void AddChildToLinkset(BSPhysObject child) | ||
118 | { | ||
119 | if (!HasChild(child)) | ||
120 | { | ||
121 | m_children.Add(child); | ||
122 | |||
123 | DetailLog("{0},BSLinksetCompound.AddChildToLinkset,call,child={1}", LinksetRoot.LocalID, child.LocalID); | ||
124 | |||
125 | // Cause constraints and assorted properties to be recomputed before the next simulation step. | ||
126 | Refresh(LinksetRoot); | ||
127 | } | ||
128 | return; | ||
129 | } | ||
130 | |||
131 | // Remove the specified child from the linkset. | ||
132 | // Safe to call even if the child is not really in my linkset. | ||
133 | protected override void RemoveChildFromLinkset(BSPhysObject child) | ||
134 | { | ||
135 | if (m_children.Remove(child)) | ||
136 | { | ||
137 | DetailLog("{0},BSLinksetCompound.RemoveChildFromLinkset,call,rID={1},rBody={2},cID={3},cBody={4}", | ||
138 | child.LocalID, | ||
139 | LinksetRoot.LocalID, LinksetRoot.PhysBody.ptr.ToString("X"), | ||
140 | child.LocalID, child.PhysBody.ptr.ToString("X")); | ||
141 | |||
142 | // See that the linkset parameters are recomputed at the end of the taint time. | ||
143 | Refresh(LinksetRoot); | ||
144 | } | ||
145 | else | ||
146 | { | ||
147 | // Non-fatal occurance. | ||
148 | // PhysicsScene.Logger.ErrorFormat("{0}: Asked to remove child from linkset that was not in linkset", LogHeader); | ||
149 | } | ||
150 | return; | ||
151 | } | ||
152 | |||
153 | |||
154 | // Call each of the constraints that make up this linkset and recompute the | ||
155 | // various transforms and variables. Create constraints of not created yet. | ||
156 | // Called before the simulation step to make sure the constraint based linkset | ||
157 | // is all initialized. | ||
158 | // Called at taint time!! | ||
159 | private void RecomputeLinksetCompound() | ||
160 | { | ||
161 | float linksetMass = LinksetMass; | ||
162 | LinksetRoot.UpdatePhysicalMassProperties(linksetMass); | ||
163 | |||
164 | // DEBUG: see of inter-linkset collisions are causing problems | ||
165 | // BulletSimAPI.SetCollisionFilterMask2(LinksetRoot.BSBody.ptr, | ||
166 | // (uint)CollisionFilterGroups.LinksetFilter, (uint)CollisionFilterGroups.LinksetMask); | ||
167 | DetailLog("{0},BSLinksetCompound.RecomputeLinksetCompound,set,rBody={1},linksetMass={2}", | ||
168 | LinksetRoot.LocalID, LinksetRoot.PhysBody.ptr.ToString("X"), linksetMass); | ||
169 | |||
170 | |||
171 | } | ||
172 | } | ||
173 | } \ No newline at end of file | ||