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authorMW2007-09-11 07:04:05 +0000
committerMW2007-09-11 07:04:05 +0000
commite2e13a9756e1de21e1b11a9dba7105f831b0df30 (patch)
treece1c283826b1056af569f4a6d7b575247d110071 /OpenSim/Region/Physics
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Added part 3 of Darok's BulletX patch. The bulletX plugin is now a project in the opensim build/solution. To use change the physics setting in opensim.ini to "modified_BulletX". At the moment I have been unable to test this as when using the bulletX plugin for me opensim is using 100% of processor.
Diffstat (limited to '')
-rw-r--r--OpenSim/Region/Physics/BulletXPlugin/BulletXPlugin.cs575
1 files changed, 485 insertions, 90 deletions
diff --git a/OpenSim/Region/Physics/BulletXPlugin/BulletXPlugin.cs b/OpenSim/Region/Physics/BulletXPlugin/BulletXPlugin.cs
index 45723e3..6d8e1a8 100644
--- a/OpenSim/Region/Physics/BulletXPlugin/BulletXPlugin.cs
+++ b/OpenSim/Region/Physics/BulletXPlugin/BulletXPlugin.cs
@@ -1,11 +1,10 @@
1#region Copyright 1#region Copyright
2/* 2/*
3* Copyright (c) Contributors, http://opensimulator.org/ 3* Copyright (c) Contributors, http://www.openmetaverse.org/
4* See CONTRIBUTORS.TXT for a full list of copyright holders. 4* See CONTRIBUTORS.TXT for a full list of copyright holders.
5* 5*
6* Redistribution and use in source and binary forms, with or without 6* Redistribution and use in source and binary forms, with or without
7* modification, are permitted provided that the following conditions are 7* modification, are permitted provided that the following conditions are met:
8met:
9* * Redistributions of source code must retain the above copyright 8* * Redistributions of source code must retain the above copyright
10* notice, this list of conditions and the following disclaimer. 9* notice, this list of conditions and the following disclaimer.
11* * Redistributions in binary form must reproduce the above copyright 10* * Redistributions in binary form must reproduce the above copyright
@@ -13,23 +12,19 @@ met:
13* documentation and/or other materials provided with the distribution. 12* documentation and/or other materials provided with the distribution.
14* * Neither the name of the OpenSim Project nor the 13* * Neither the name of the OpenSim Project nor the
15* names of its contributors may be used to endorse or promote products 14* names of its contributors may be used to endorse or promote products
16* derived from this software without specific prior written 15* derived from this software without specific prior written permission.
17permission.
18* 16*
19* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY 17* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY
20* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY 20* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
23* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25SERVICES; 23* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
26* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
27AND
28* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
30THIS
31* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32* 27*
33*/ 28*/
34#endregion 29#endregion
35#region References 30#region References
@@ -47,9 +42,10 @@ using XnaDevRu.BulletX.Dynamics;
47namespace OpenSim.Region.Physics.BulletXPlugin 42namespace OpenSim.Region.Physics.BulletXPlugin
48{ 43{
49 /// <summary> 44 /// <summary>
50 /// This Class converts objects and types for BulletX 45 /// BulletXConversions are called now BulletXMaths
46 /// This Class converts objects and types for BulletX and give some operations
51 /// </summary> 47 /// </summary>
52 public class BulletXConversions 48 public class BulletXMaths
53 { 49 {
54 //Vector3 50 //Vector3
55 public static MonoXnaCompactMaths.Vector3 PhysicsVectorToXnaVector3(PhysicsVector physicsVector) 51 public static MonoXnaCompactMaths.Vector3 PhysicsVectorToXnaVector3(PhysicsVector physicsVector)
@@ -69,6 +65,114 @@ namespace OpenSim.Region.Physics.BulletXPlugin
69 { 65 {
70 return new AxiomQuaternion(xnaQuaternion.W, xnaQuaternion.X, xnaQuaternion.Y, xnaQuaternion.Z); 66 return new AxiomQuaternion(xnaQuaternion.W, xnaQuaternion.X, xnaQuaternion.Y, xnaQuaternion.Z);
71 } 67 }
68
69 //Next methods are extracted from XnaDevRu.BulletX(See 3rd party license):
70 //- SetRotation (class MatrixOperations)
71 //- GetRotation (class MatrixOperations)
72 //- GetElement (class MathHelper)
73 //- SetElement (class MathHelper)
74 internal static void SetRotation(ref Matrix m, MonoXnaCompactMaths.Quaternion q)
75 {
76 float d = q.LengthSquared();
77 float s = 2f / d;
78 float xs = q.X * s, ys = q.Y * s, zs = q.Z * s;
79 float wx = q.W * xs, wy = q.W * ys, wz = q.W * zs;
80 float xx = q.X * xs, xy = q.X * ys, xz = q.X * zs;
81 float yy = q.Y * ys, yz = q.Y * zs, zz = q.Z * zs;
82 m = new Matrix(1 - (yy + zz), xy - wz, xz + wy, 0,
83 xy + wz, 1 - (xx + zz), yz - wx, 0,
84 xz - wy, yz + wx, 1 - (xx + yy), 0,
85 m.M41, m.M42, m.M43, 1);
86 }
87 internal static MonoXnaCompactMaths.Quaternion GetRotation(Matrix m)
88 {
89 MonoXnaCompactMaths.Quaternion q = new MonoXnaCompactMaths.Quaternion();
90
91 float trace = m.M11 + m.M22 + m.M33;
92
93 if (trace > 0)
94 {
95 float s = (float)Math.Sqrt(trace + 1);
96 q.W = s * 0.5f;
97 s = 0.5f / s;
98
99 q.X = (m.M32 - m.M23) * s;
100 q.Y = (m.M13 - m.M31) * s;
101 q.Z = (m.M21 - m.M12) * s;
102 }
103 else
104 {
105 int i = m.M11 < m.M22 ?
106 (m.M22 < m.M33 ? 2 : 1) :
107 (m.M11 < m.M33 ? 2 : 0);
108 int j = (i + 1) % 3;
109 int k = (i + 2) % 3;
110
111 float s = (float)Math.Sqrt(GetElement(m, i, i) - GetElement(m, j, j) - GetElement(m, k, k) + 1);
112 SetElement(ref q, i, s * 0.5f);
113 s = 0.5f / s;
114
115 q.W = (GetElement(m, k, j) - GetElement(m, j, k)) * s;
116 SetElement(ref q, j, (GetElement(m, j, i) + GetElement(m, i, j)) * s);
117 SetElement(ref q, k, (GetElement(m, k, i) + GetElement(m, i, k)) * s);
118 }
119
120 return q;
121 }
122 internal static float SetElement(ref MonoXnaCompactMaths.Quaternion q, int index, float value)
123 {
124 switch (index)
125 {
126 case 0:
127 q.X = value; break;
128 case 1:
129 q.Y = value; break;
130 case 2:
131 q.Z = value; break;
132 case 3:
133 q.W = value; break;
134 }
135
136 return 0;
137 }
138 internal static float GetElement(Matrix mat, int row, int col)
139 {
140 switch (row)
141 {
142 case 0:
143 switch (col)
144 {
145 case 0:
146 return mat.M11;
147 case 1:
148 return mat.M12;
149 case 2:
150 return mat.M13;
151 } break;
152 case 1:
153 switch (col)
154 {
155 case 0:
156 return mat.M21;
157 case 1:
158 return mat.M22;
159 case 2:
160 return mat.M23;
161 } break;
162 case 2:
163 switch (col)
164 {
165 case 0:
166 return mat.M31;
167 case 1:
168 return mat.M32;
169 case 2:
170 return mat.M33;
171 } break;
172 }
173
174 return 0;
175 }
72 } 176 }
73 /// <summary> 177 /// <summary>
74 /// PhysicsPlugin Class for BulletX 178 /// PhysicsPlugin Class for BulletX
@@ -94,7 +198,7 @@ namespace OpenSim.Region.Physics.BulletXPlugin
94 } 198 }
95 public string GetName() 199 public string GetName()
96 { 200 {
97 return ("BulletXEngine"); 201 return ("modified_BulletX");//Changed!! "BulletXEngine" To "modified_BulletX"
98 } 202 }
99 public void Dispose() 203 public void Dispose()
100 { 204 {
@@ -105,10 +209,12 @@ namespace OpenSim.Region.Physics.BulletXPlugin
105 /// </summary> 209 /// </summary>
106 public class BulletXScene : PhysicsScene 210 public class BulletXScene : PhysicsScene
107 { 211 {
212 #region BulletXScene Fields
108 public DiscreteDynamicsWorld ddWorld; 213 public DiscreteDynamicsWorld ddWorld;
109 private CollisionDispatcher cDispatcher; 214 private CollisionDispatcher cDispatcher;
110 private OverlappingPairCache opCache; 215 private OverlappingPairCache opCache;
111 private SequentialImpulseConstraintSolver sicSolver; 216 private SequentialImpulseConstraintSolver sicSolver;
217 public static Object BulletXLock = new Object();
112 218
113 private const int minXY = 0; 219 private const int minXY = 0;
114 private const int minZ = 0; 220 private const int minZ = 0;
@@ -128,6 +234,7 @@ namespace OpenSim.Region.Physics.BulletXPlugin
128 public static float HeightLevel0 { get { return heightLevel0; } } 234 public static float HeightLevel0 { get { return heightLevel0; } }
129 public static float HeightLevel1 { get { return heightLevel1; } } 235 public static float HeightLevel1 { get { return heightLevel1; } }
130 public static float LowGravityFactor { get { return lowGravityFactor; } } 236 public static float LowGravityFactor { get { return lowGravityFactor; } }
237 #endregion
131 238
132 public BulletXScene() 239 public BulletXScene()
133 { 240 {
@@ -137,8 +244,11 @@ namespace OpenSim.Region.Physics.BulletXPlugin
137 opCache = new AxisSweep3(worldMinDim, worldMaxDim, maxHandles); 244 opCache = new AxisSweep3(worldMinDim, worldMaxDim, maxHandles);
138 sicSolver = new SequentialImpulseConstraintSolver(); 245 sicSolver = new SequentialImpulseConstraintSolver();
139 246
140 ddWorld = new DiscreteDynamicsWorld(cDispatcher, opCache, sicSolver); 247 lock (BulletXLock)
141 ddWorld.Gravity = new MonoXnaCompactMaths.Vector3(0, 0, -gravity); 248 {
249 ddWorld = new DiscreteDynamicsWorld(cDispatcher, opCache, sicSolver);
250 ddWorld.Gravity = new MonoXnaCompactMaths.Vector3(0, 0, -gravity);
251 }
142 252
143 this._heightmap = new float[65536]; 253 this._heightmap = new float[65536];
144 } 254 }
@@ -148,47 +258,110 @@ namespace OpenSim.Region.Physics.BulletXPlugin
148 pos.X = position.X; 258 pos.X = position.X;
149 pos.Y = position.Y; 259 pos.Y = position.Y;
150 pos.Z = position.Z + 20; 260 pos.Z = position.Z + 20;
151 BulletXCharacter newAv = new BulletXCharacter(this, pos); 261 BulletXCharacter newAv = null;
152 _characters.Add(newAv); 262 lock (BulletXLock)
263 {
264 newAv = new BulletXCharacter(this, pos);
265 _characters.Add(newAv);
266 }
153 return newAv; 267 return newAv;
154 } 268 }
155 public override void RemoveAvatar(PhysicsActor actor) 269 public override void RemoveAvatar(PhysicsActor actor)
156 { 270 {
157 if (actor is BulletXCharacter) 271 if (actor is BulletXCharacter)
158 { 272 {
159 _characters.Remove((BulletXCharacter)actor); 273 lock (BulletXLock)
274 {
275 _characters.Remove((BulletXCharacter)actor);
276 }
160 } 277 }
161 } 278 }
162 public override PhysicsActor AddPrim(PhysicsVector position, PhysicsVector size, AxiomQuaternion rotation) 279 public override PhysicsActor AddPrim(PhysicsVector position, PhysicsVector size, AxiomQuaternion rotation)
163 { 280 {
164 return new BulletXPrim(this, position, size, rotation); 281 BulletXPrim newPrim = null;
282 lock (BulletXLock)
283 {
284 newPrim = new BulletXPrim(this, position, size, rotation);
285 _prims.Add(newPrim);
286 }
287 return newPrim;
165 } 288 }
166 public override void RemovePrim(PhysicsActor prim) 289 public override void RemovePrim(PhysicsActor prim)
167 { 290 {
168 if (prim is BulletXPrim) 291 if (prim is BulletXPrim)
169 { 292 {
170 _prims.Remove((BulletXPrim)prim); 293 lock (BulletXLock)
294 {
295 _prims.Remove((BulletXPrim)prim);
296 }
171 } 297 }
172 } 298 }
173 public override void Simulate(float timeStep) 299 public override void Simulate(float timeStep)
174 { 300 {
301 lock (BulletXLock)
302 {
303 BXSMove(timeStep);
304 ddWorld.StepSimulation(timeStep, 0, timeStep);
305 //Heightmap Validation:
306 BXSValidateHeight();
307 //End heightmap validation.
308 BXSUpdateKinetics();
309 }
310 }
311 private void BXSMove(float timeStep)
312 {
175 foreach (BulletXCharacter actor in _characters) 313 foreach (BulletXCharacter actor in _characters)
176 { 314 {
177 actor.Move(timeStep); 315 actor.Move(timeStep);
178
179 } 316 }
180 ddWorld.StepSimulation(timeStep, 0, timeStep); 317 foreach (BulletXPrim prim in _prims)
318 {
319 }
320 }
321 private void BXSValidateHeight()
322 {
323 float _height;
181 foreach (BulletXCharacter actor in _characters) 324 foreach (BulletXCharacter actor in _characters)
182 { 325 {
183 actor.ValidateHeight(this._heightmap[ 326 if ((actor.RigidBodyHorizontalPosition.x < 0) || (actor.RigidBodyHorizontalPosition.y < 0))
327 {
328 _height = 0;
329 }
330 else
331 {
332 _height = this._heightmap[
184 (int)Math.Round(actor.RigidBodyHorizontalPosition.x) * 256 333 (int)Math.Round(actor.RigidBodyHorizontalPosition.x) * 256
185 + (int)Math.Round(actor.RigidBodyHorizontalPosition.y)]); 334 + (int)Math.Round(actor.RigidBodyHorizontalPosition.y)];
335 }
336 actor.ValidateHeight(_height);
186 } 337 }
338 foreach (BulletXPrim prim in _prims)
339 {
340 if ((prim.RigidBodyHorizontalPosition.x < 0) || (prim.RigidBodyHorizontalPosition.y < 0))
341 {
342 _height = 0;
343 }
344 else
345 {
346 _height = this._heightmap[
347 (int)Math.Round(prim.RigidBodyHorizontalPosition.x) * 256
348 + (int)Math.Round(prim.RigidBodyHorizontalPosition.y)];
349 }
350 prim.ValidateHeight(_height);
351 }
352 }
353 private void BXSUpdateKinetics()
354 {
355 //UpdatePosition > UpdateKinetics.
356 //Not only position will be updated, also velocity cause acceleration.
187 foreach (BulletXCharacter actor in _characters) 357 foreach (BulletXCharacter actor in _characters)
188 { 358 {
189 actor.UpdatePosition(); 359 actor.UpdateKinetics();
360 }
361 foreach (BulletXPrim prim in _prims)
362 {
363 prim.UpdateKinetics();
190 } 364 }
191
192 } 365 }
193 public override void GetResults() 366 public override void GetResults()
194 { 367 {
@@ -212,6 +385,10 @@ namespace OpenSim.Region.Physics.BulletXPlugin
212 int y = i >> 8; 385 int y = i >> 8;
213 this._heightmap[i] = heightMap[x * 256 + y]; 386 this._heightmap[i] = heightMap[x * 256 + y];
214 } 387 }
388 lock (BulletXLock)
389 {
390 //Updating BulletX HeightMap???
391 }
215 } 392 }
216 public override void DeleteTerrain() 393 public override void DeleteTerrain()
217 { 394 {
@@ -230,6 +407,7 @@ namespace OpenSim.Region.Physics.BulletXPlugin
230 private AxiomQuaternion _orientation; 407 private AxiomQuaternion _orientation;
231 private bool flying; 408 private bool flying;
232 private RigidBody rigidBody; 409 private RigidBody rigidBody;
410
233 public Axiom.Math.Vector2 RigidBodyHorizontalPosition 411 public Axiom.Math.Vector2 RigidBodyHorizontalPosition
234 { 412 {
235 get 413 get
@@ -245,31 +423,46 @@ namespace OpenSim.Region.Physics.BulletXPlugin
245 public BulletXCharacter(BulletXScene parent_scene, PhysicsVector pos, PhysicsVector velocity, 423 public BulletXCharacter(BulletXScene parent_scene, PhysicsVector pos, PhysicsVector velocity,
246 PhysicsVector size, PhysicsVector acceleration, AxiomQuaternion orientation) 424 PhysicsVector size, PhysicsVector acceleration, AxiomQuaternion orientation)
247 { 425 {
426 //This fields will be removed. They're temporal
427 float _sizeX = 0.5f;
428 float _sizeY = 0.5f;
429 float _sizeZ = 1.6f;
430 //.
248 _position = pos; 431 _position = pos;
249 _velocity = velocity; 432 _velocity = velocity;
250 _size = size; 433 _size = size;
434 //---
435 _size.X = _sizeX;
436 _size.Y = _sizeY;
437 _size.Z = _sizeZ;
438 //.
251 _acceleration = acceleration; 439 _acceleration = acceleration;
252 _orientation = orientation; 440 _orientation = orientation;
253 float _mass = 50.0f; //This depends of avatar's dimensions 441 float _mass = 50.0f; //This depends of avatar's dimensions
254 Matrix _startTransform = Matrix.Identity; 442 //For RigidBody Constructor. The next values might change
255 _startTransform.Translation = BulletXConversions.PhysicsVectorToXnaVector3(pos);
256 Matrix _centerOfMassOffset = Matrix.Identity;
257 CollisionShape _collisionShape = new BoxShape(new MonoXnaCompactMaths.Vector3(0.5f, 0.5f, 1.60f));
258 DefaultMotionState _motionState = new DefaultMotionState(_startTransform, _centerOfMassOffset);
259 MonoXnaCompactMaths.Vector3 _localInertia = new MonoXnaCompactMaths.Vector3();
260 _collisionShape.CalculateLocalInertia(_mass, out _localInertia);
261//Always when mass > 0
262
263 //The next values might change
264 float _linearDamping = 0.0f; 443 float _linearDamping = 0.0f;
265 float _angularDamping = 0.0f; 444 float _angularDamping = 0.0f;
266 float _friction = 0.5f; 445 float _friction = 0.5f;
267 float _restitution = 0.0f; 446 float _restitution = 0.0f;
268 447 Matrix _startTransform = Matrix.Identity;
269 rigidBody = new RigidBody(_mass, _motionState, _collisionShape, _localInertia, _linearDamping, _angularDamping, _friction, _restitution); 448 Matrix _centerOfMassOffset = Matrix.Identity;
270 rigidBody.ActivationState = ActivationState.DisableDeactivation; 449 lock (BulletXScene.BulletXLock)
271 450 {
272 parent_scene.ddWorld.AddRigidBody(rigidBody); 451 _startTransform.Translation = BulletXMaths.PhysicsVectorToXnaVector3(pos);
452 //CollisionShape _collisionShape = new BoxShape(new MonoXnaCompactMaths.Vector3(1.0f, 1.0f, 1.60f));
453 //For now, like ODE, collisionShape = sphere of radious = 1.0
454 CollisionShape _collisionShape = new SphereShape(1.0f);
455 DefaultMotionState _motionState = new DefaultMotionState(_startTransform, _centerOfMassOffset);
456 MonoXnaCompactMaths.Vector3 _localInertia = new MonoXnaCompactMaths.Vector3();
457 _collisionShape.CalculateLocalInertia(_mass, out _localInertia); //Always when mass > 0
458 rigidBody = new RigidBody(_mass, _motionState, _collisionShape, _localInertia, _linearDamping, _angularDamping, _friction, _restitution);
459 rigidBody.ActivationState = ActivationState.DisableDeactivation;
460 //It's seems that there are a bug with rigidBody constructor and its CenterOfMassPosition
461 MonoXnaCompactMaths.Vector3 _vDebugTranslation;
462 _vDebugTranslation = _startTransform.Translation - rigidBody.CenterOfMassPosition;
463 rigidBody.Translate(_vDebugTranslation);
464 parent_scene.ddWorld.AddRigidBody(rigidBody);
465 }
273 } 466 }
274 public override PhysicsVector Position 467 public override PhysicsVector Position
275 { 468 {
@@ -279,7 +472,11 @@ namespace OpenSim.Region.Physics.BulletXPlugin
279 } 472 }
280 set 473 set
281 { 474 {
282 _position = value; 475 lock (BulletXScene.BulletXLock)
476 {
477 _position = value;
478 Translate();
479 }
283 } 480 }
284 } 481 }
285 public override PhysicsVector Velocity 482 public override PhysicsVector Velocity
@@ -290,7 +487,11 @@ namespace OpenSim.Region.Physics.BulletXPlugin
290 } 487 }
291 set 488 set
292 { 489 {
293 _velocity = value; 490 lock (BulletXScene.BulletXLock)
491 {
492 _velocity = value;
493 Speed();
494 }
294 } 495 }
295 } 496 }
296 public override PhysicsVector Size 497 public override PhysicsVector Size
@@ -301,7 +502,10 @@ namespace OpenSim.Region.Physics.BulletXPlugin
301 } 502 }
302 set 503 set
303 { 504 {
304 _size = value; 505 lock (BulletXScene.BulletXLock)
506 {
507 _size = value;
508 }
305 } 509 }
306 } 510 }
307 public override PhysicsVector Acceleration 511 public override PhysicsVector Acceleration
@@ -319,7 +523,10 @@ namespace OpenSim.Region.Physics.BulletXPlugin
319 } 523 }
320 set 524 set
321 { 525 {
322 _orientation = value; 526 lock (BulletXScene.BulletXLock)
527 {
528 _orientation = value;
529 }
323 } 530 }
324 } 531 }
325 public override bool Flying 532 public override bool Flying
@@ -335,7 +542,10 @@ namespace OpenSim.Region.Physics.BulletXPlugin
335 } 542 }
336 public void SetAcceleration(PhysicsVector accel) 543 public void SetAcceleration(PhysicsVector accel)
337 { 544 {
338 _acceleration = accel; 545 lock (BulletXScene.BulletXLock)
546 {
547 _acceleration = accel;
548 }
339 } 549 }
340 public override bool Kinematic 550 public override bool Kinematic
341 { 551 {
@@ -356,70 +566,96 @@ namespace OpenSim.Region.Physics.BulletXPlugin
356 { 566 {
357 567
358 } 568 }
359 public void Move(float timeStep) 569 internal void Move(float timeStep)
360 { 570 {
361 MonoXnaCompactMaths.Vector3 vec = new MonoXnaCompactMaths.Vector3(); 571 MonoXnaCompactMaths.Vector3 vec = new MonoXnaCompactMaths.Vector3();
362 //if (this._velocity.X == 0.0f) 572 //At this point it's supossed that:
363 // vec.X = this.rigidBody.LinearVelocity.X; //current velocity 573 //_velocity == rigidBody.LinearVelocity
364 //else 574 vec.X = this._velocity.X;
365 vec.X = this._velocity.X; //overrides current velocity 575 vec.Y = this._velocity.Y;
366 576 vec.Z = this._velocity.Z;
367 //if (this._velocity.Y == 0.0f)
368 // vec.Y = this.rigidBody.LinearVelocity.Y; //current velocity
369 //else
370 vec.Y = this._velocity.Y; //overrides current velocity
371
372 float nextZVelocity;
373 //if (this._velocity.Z == 0.0f)
374 // nextZVelocity = this.rigidBody.LinearVelocity.Z; //current velocity
375 //else
376 nextZVelocity = this._velocity.Z; //overrides current velocity
377 577
378 if (flying) 578 if (flying)
379 { 579 {
380 //Antigravity with movement 580 //Antigravity with movement
381 if (this._position.Z <= BulletXScene.HeightLevel0) 581 if (this._position.Z <= BulletXScene.HeightLevel0)
382 { 582 {
383 vec.Z = nextZVelocity + BulletXScene.Gravity * timeStep; 583 vec.Z += BulletXScene.Gravity * timeStep;
384 } 584 }
385 //Lowgravity with movement 585 //Lowgravity with movement
386 else if((this._position.Z > BulletXScene.HeightLevel0) 586 else if ((this._position.Z > BulletXScene.HeightLevel0)
387 && (this._position.Z <= BulletXScene.HeightLevel1)) 587 && (this._position.Z <= BulletXScene.HeightLevel1))
388 { 588 {
389 vec.Z = nextZVelocity + BulletXScene.Gravity * timeStep * (1.0f - BulletXScene.LowGravityFactor); 589 vec.Z += BulletXScene.Gravity * timeStep * (1.0f - BulletXScene.LowGravityFactor);
390 } 590 }
391 //Lowgravity with... 591 //Lowgravity with...
392 else if (this._position.Z > BulletXScene.HeightLevel1) 592 else if (this._position.Z > BulletXScene.HeightLevel1)
393 { 593 {
394 if(nextZVelocity > 0) //no movement 594 if (vec.Z > 0) //no movement
395 vec.Z = BulletXScene.Gravity * timeStep * (1.0f - BulletXScene.LowGravityFactor); 595 vec.Z = BulletXScene.Gravity * timeStep * (1.0f - BulletXScene.LowGravityFactor);
396 else 596 else
397 vec.Z = nextZVelocity + BulletXScene.Gravity * timeStep * (1.0f - BulletXScene.LowGravityFactor); 597 vec.Z += BulletXScene.Gravity * timeStep * (1.0f - BulletXScene.LowGravityFactor);
398 598
399 } 599 }
400 } 600 }
401 else
402 {
403 vec.Z = nextZVelocity;
404 }
405 rigidBody.LinearVelocity = vec; 601 rigidBody.LinearVelocity = vec;
406 } 602 }
407 public void UpdatePosition()
408 {
409 this._position = BulletXConversions.XnaVector3ToPhysicsVector(rigidBody.CenterOfMassPosition);
410 }
411 //This validation is very basic 603 //This validation is very basic
412 internal void ValidateHeight(float heighmapPositionValue) 604 internal void ValidateHeight(float heighmapPositionValue)
413 { 605 {
414 if (rigidBody.CenterOfMassPosition.Z < heighmapPositionValue) 606 if (rigidBody.CenterOfMassPosition.Z < heighmapPositionValue + _size.Z / 2.0f)
415 { 607 {
416 Matrix m = rigidBody.WorldTransform; 608 Matrix m = rigidBody.WorldTransform;
417 MonoXnaCompactMaths.Vector3 v3 = m.Translation; 609 MonoXnaCompactMaths.Vector3 v3 = m.Translation;
418 v3.Z = heighmapPositionValue; 610 v3.Z = heighmapPositionValue + _size.Z / 2.0f;
419 m.Translation = v3; 611 m.Translation = v3;
420 rigidBody.WorldTransform = m; 612 rigidBody.WorldTransform = m;
613 //When an Avie touch the ground it's vertical velocity it's reduced to ZERO
614 Speed(new PhysicsVector(this.rigidBody.LinearVelocity.X, this.rigidBody.LinearVelocity.Y, 0.0f));
421 } 615 }
422 } 616 }
617 internal void UpdateKinetics()
618 {
619 this._position = BulletXMaths.XnaVector3ToPhysicsVector(rigidBody.CenterOfMassPosition);
620 this._velocity = BulletXMaths.XnaVector3ToPhysicsVector(rigidBody.LinearVelocity);
621 //Orientation it seems that it will be the default.
622 ReOrient();
623 }
624
625 #region Methods for updating values of RigidBody
626 private void Translate()
627 {
628 Translate(this._position);
629 }
630 private void Translate(PhysicsVector _newPos)
631 {
632 MonoXnaCompactMaths.Vector3 _translation;
633 _translation = BulletXMaths.PhysicsVectorToXnaVector3(_newPos) - rigidBody.CenterOfMassPosition;
634 rigidBody.Translate(_translation);
635 }
636 private void Speed()
637 {
638 Speed(this._velocity);
639 }
640 private void Speed(PhysicsVector _newSpeed)
641 {
642 MonoXnaCompactMaths.Vector3 _speed;
643 _speed = BulletXMaths.PhysicsVectorToXnaVector3(_newSpeed);
644 rigidBody.LinearVelocity = _speed;
645 }
646 private void ReOrient()
647 {
648 ReOrient(this._orientation);
649 }
650 private void ReOrient(AxiomQuaternion _newOrient)
651 {
652 MonoXnaCompactMaths.Quaternion _newOrientation;
653 _newOrientation = BulletXMaths.AxiomQuaternionToXnaQuaternion(_newOrient);
654 Matrix _comTransform = rigidBody.CenterOfMassTransform;
655 BulletXMaths.SetRotation(ref _comTransform, _newOrientation);
656 rigidBody.CenterOfMassTransform = _comTransform;
657 }
658 #endregion
423 } 659 }
424 /// <summary> 660 /// <summary>
425 /// PhysicsActor Prim Class for BulletX 661 /// PhysicsActor Prim Class for BulletX
@@ -431,7 +667,20 @@ namespace OpenSim.Region.Physics.BulletXPlugin
431 private PhysicsVector _size; 667 private PhysicsVector _size;
432 private PhysicsVector _acceleration; 668 private PhysicsVector _acceleration;
433 private AxiomQuaternion _orientation; 669 private AxiomQuaternion _orientation;
670 //Density it will depends of material.
671 //For now all prims have the same density, all prims are made of water. Be water my friend! :D
672 private const float _density = 1000.0f;
673 private RigidBody rigidBody;
674 //_physical value will be linked with the prim object value
675 private Boolean _physical = false;
434 676
677 public Axiom.Math.Vector2 RigidBodyHorizontalPosition
678 {
679 get
680 {
681 return new Axiom.Math.Vector2(this.rigidBody.CenterOfMassPosition.X, this.rigidBody.CenterOfMassPosition.Y);
682 }
683 }
435 public BulletXPrim(BulletXScene parent_scene, PhysicsVector pos, PhysicsVector size, AxiomQuaternion rotation) 684 public BulletXPrim(BulletXScene parent_scene, PhysicsVector pos, PhysicsVector size, AxiomQuaternion rotation)
436 : this(parent_scene, pos, new PhysicsVector(), size, new PhysicsVector(), rotation) 685 : this(parent_scene, pos, new PhysicsVector(), size, new PhysicsVector(), rotation)
437 { 686 {
@@ -442,19 +691,51 @@ namespace OpenSim.Region.Physics.BulletXPlugin
442 _position = pos; 691 _position = pos;
443 _velocity = velocity; 692 _velocity = velocity;
444 _size = size; 693 _size = size;
694 if ((size.X == 0) || (size.Y == 0) || (size.Z == 0)) throw new Exception("Size 0");
695
445 _acceleration = aceleration; 696 _acceleration = aceleration;
446 _orientation = rotation; 697 //Because a bug, orientation will be fixed to AxiomQuaternion.Identity
698 _orientation = AxiomQuaternion.Identity;
699 //_orientation = rotation;
700 //---
701 //For RigidBody Constructor. The next values might change
702 float _linearDamping = 0.0f;
703 float _angularDamping = 0.0f;
704 float _friction = 0.5f;
705 float _restitution = 0.0f;
706 Matrix _startTransform = Matrix.Identity;
707 Matrix _centerOfMassOffset = Matrix.Identity;
708 lock (BulletXScene.BulletXLock)
709 {
710 _startTransform.Translation = BulletXMaths.PhysicsVectorToXnaVector3(pos);
711 //For now all prims are boxes
712 CollisionShape _collisionShape = new BoxShape(BulletXMaths.PhysicsVectorToXnaVector3(_size) / 2.0f);
713 DefaultMotionState _motionState = new DefaultMotionState(_startTransform, _centerOfMassOffset);
714 MonoXnaCompactMaths.Vector3 _localInertia = new MonoXnaCompactMaths.Vector3();
715 _collisionShape.CalculateLocalInertia(Mass, out _localInertia); //Always when mass > 0
716 rigidBody = new RigidBody(Mass, _motionState, _collisionShape, _localInertia, _linearDamping, _angularDamping, _friction, _restitution);
717 rigidBody.ActivationState = ActivationState.DisableDeactivation;
718 //It's seems that there are a bug with rigidBody constructor and its CenterOfMassPosition
719 MonoXnaCompactMaths.Vector3 _vDebugTranslation;
720 _vDebugTranslation = _startTransform.Translation - rigidBody.CenterOfMassPosition;
721 rigidBody.Translate(_vDebugTranslation);
722 //---
723 parent_scene.ddWorld.AddRigidBody(rigidBody);
724 }
447 } 725 }
448 public override PhysicsVector Position 726 public override PhysicsVector Position
449 { 727 {
450 get 728 get
451 { 729 {
452 return _position; 730 return _position;
453
454 } 731 }
455 set 732 set
456 { 733 {
457 _position = value; 734 lock (BulletXScene.BulletXLock)
735 {
736 _position = value;
737 Translate();
738 }
458 } 739 }
459 } 740 }
460 public override PhysicsVector Velocity 741 public override PhysicsVector Velocity
@@ -465,7 +746,11 @@ namespace OpenSim.Region.Physics.BulletXPlugin
465 } 746 }
466 set 747 set
467 { 748 {
468 _velocity = value; 749 lock (BulletXScene.BulletXLock)
750 {
751 _velocity = value;
752 Speed();
753 }
469 } 754 }
470 } 755 }
471 public override PhysicsVector Size 756 public override PhysicsVector Size
@@ -476,7 +761,11 @@ namespace OpenSim.Region.Physics.BulletXPlugin
476 } 761 }
477 set 762 set
478 { 763 {
479 _size = value; 764 lock (BulletXScene.BulletXLock)
765 {
766 _size = value;
767 ReSize();
768 }
480 } 769 }
481 } 770 }
482 public override PhysicsVector Acceleration 771 public override PhysicsVector Acceleration
@@ -494,7 +783,19 @@ namespace OpenSim.Region.Physics.BulletXPlugin
494 } 783 }
495 set 784 set
496 { 785 {
497 _orientation = value; 786 lock (BulletXScene.BulletXLock)
787 {
788 _orientation = value;
789 ReOrient();
790 }
791 }
792 }
793 public float Mass
794 {
795 get
796 {
797 //For now all prims are boxes
798 return _density * _size.X * _size.Y * _size.Z;
498 } 799 }
499 } 800 }
500 public override bool Flying 801 public override bool Flying
@@ -508,9 +809,23 @@ namespace OpenSim.Region.Physics.BulletXPlugin
508 809
509 } 810 }
510 } 811 }
812 public Boolean Physical
813 {
814 get
815 {
816 return _physical;
817 }
818 set
819 {
820 _physical = value;
821 }
822 }
511 public void SetAcceleration(PhysicsVector accel) 823 public void SetAcceleration(PhysicsVector accel)
512 { 824 {
513 _acceleration = accel; 825 lock (BulletXScene.BulletXLock)
826 {
827 _acceleration = accel;
828 }
514 } 829 }
515 public override bool Kinematic 830 public override bool Kinematic
516 { 831 {
@@ -532,6 +847,86 @@ namespace OpenSim.Region.Physics.BulletXPlugin
532 { 847 {
533 848
534 } 849 }
850 internal void ValidateHeight(float heighmapPositionValue)
851 {
852 if (rigidBody.CenterOfMassPosition.Z < heighmapPositionValue + _size.Z / 2.0f)
853 {
854 Matrix m = rigidBody.WorldTransform;
855 MonoXnaCompactMaths.Vector3 v3 = m.Translation;
856 v3.Z = heighmapPositionValue + _size.Z / 2.0f;
857 m.Translation = v3;
858 rigidBody.WorldTransform = m;
859 //When a Prim touch the ground it's vertical velocity it's reduced to ZERO
860 Speed(new PhysicsVector(this.rigidBody.LinearVelocity.X, this.rigidBody.LinearVelocity.Y, 0.0f));
861 }
862 }
863 internal void UpdateKinetics()
864 {
865 if (_physical) //Updates properties. Prim updates its properties physically
866 {
867 this._position = BulletXMaths.XnaVector3ToPhysicsVector(rigidBody.CenterOfMassPosition);
868 this._velocity = BulletXMaths.XnaVector3ToPhysicsVector(rigidBody.LinearVelocity);
869 //Orientation is not implemented yet in MonoXnaCompactMaths
870 //this._orientation = BulletXMaths.XnaQuaternionToAxiomQuaternion(rigidBody.Orientation); < Good
871 //ReOrient();
872 //---
873 ReOrient();
874 }
875 else //Doesn't updates properties. That's a cancel
876 {
877 Translate();
878 Speed();
879 //Orientation is not implemented yet in MonoXnaCompactMaths
880 //ReOrient();
881 ReOrient();
882 }
883 }
884
885 #region Methods for updating values of RigidBody
886 private void Translate()
887 {
888 Translate(this._position);
889 }
890 private void Translate(PhysicsVector _newPos)
891 {
892 MonoXnaCompactMaths.Vector3 _translation;
893 _translation = BulletXMaths.PhysicsVectorToXnaVector3(_newPos) - rigidBody.CenterOfMassPosition;
894 rigidBody.Translate(_translation);
895 }
896 private void Speed()
897 {
898 Speed(this._velocity);
899 }
900 private void Speed(PhysicsVector _newSpeed)
901 {
902 MonoXnaCompactMaths.Vector3 _speed;
903 _speed = BulletXMaths.PhysicsVectorToXnaVector3(_newSpeed);
904 rigidBody.LinearVelocity = _speed;
905 }
906 private void ReSize()
907 {
908 ReSize(this._size);
909 }
910 private void ReSize(PhysicsVector _newSize)
911 {
912 MonoXnaCompactMaths.Vector3 _newsize;
913 _newsize = BulletXMaths.PhysicsVectorToXnaVector3(_newSize);
914 //For now all prims are Boxes
915 rigidBody.CollisionShape = new BoxShape(BulletXMaths.PhysicsVectorToXnaVector3(_newSize) / 2.0f);
916 }
917 private void ReOrient()
918 {
919 ReOrient(this._orientation);
920 }
921 private void ReOrient(AxiomQuaternion _newOrient)
922 {
923 MonoXnaCompactMaths.Quaternion _newOrientation;
924 _newOrientation = BulletXMaths.AxiomQuaternionToXnaQuaternion(_newOrient);
925 Matrix _comTransform = rigidBody.CenterOfMassTransform;
926 BulletXMaths.SetRotation(ref _comTransform, _newOrientation);
927 rigidBody.CenterOfMassTransform = _comTransform;
928 }
929 #endregion
930
535 } 931 }
536} 932}
537