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authorMelanie2012-03-04 16:23:46 +0000
committerMelanie2012-03-04 16:23:46 +0000
commit182f5efbe94881c22af82bc71566c49dd02ed8f8 (patch)
tree2b26c2657cfb91464008d8e305566500bc3cdd9e /OpenSim/Region/Framework/Scenes/KeyframeMotion.cs
parentMerge branch 'master' into careminster (diff)
parentZero velocity when drag-copying (diff)
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Merge branch 'master' of ssh://melanie@3dhosting.de/var/git/careminster into careminster
Diffstat (limited to 'OpenSim/Region/Framework/Scenes/KeyframeMotion.cs')
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diff --git a/OpenSim/Region/Framework/Scenes/KeyframeMotion.cs b/OpenSim/Region/Framework/Scenes/KeyframeMotion.cs
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1// Proprietary code of Avination Virtual Limited
2// (c) 2012 Melanie Thielker
3//
4
5using System;
6using System.Timers;
7using System.Collections;
8using System.Collections.Generic;
9using System.IO;
10using System.Diagnostics;
11using System.Reflection;
12using System.Threading;
13using OpenMetaverse;
14using OpenSim.Framework;
15using OpenSim.Region.Framework.Interfaces;
16using OpenSim.Region.Physics.Manager;
17using OpenSim.Region.Framework.Scenes.Serialization;
18using System.Runtime.Serialization.Formatters.Binary;
19using System.Runtime.Serialization;
20using Timer = System.Timers.Timer;
21using log4net;
22
23namespace OpenSim.Region.Framework.Scenes
24{
25 [Serializable]
26 public class KeyframeMotion
27 {
28 private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
29
30 public enum PlayMode : int
31 {
32 Forward = 0,
33 Reverse = 1,
34 Loop = 2,
35 PingPong = 3
36 };
37
38 [Flags]
39 public enum DataFormat : int
40 {
41 Translation = 1,
42 Rotation = 2
43 }
44
45 [Serializable]
46 public struct Keyframe
47 {
48 public Vector3? Position;
49 public Quaternion? Rotation;
50 public Quaternion StartRotation;
51 public int TimeMS;
52 public int TimeTotal;
53 public Vector3 AngularVelocity;
54 };
55
56 private Vector3 m_basePosition;
57 private Quaternion m_baseRotation;
58 private Vector3 m_serializedPosition;
59
60 private Keyframe m_currentFrame;
61 private List<Keyframe> m_frames = new List<Keyframe>();
62
63 private Keyframe[] m_keyframes;
64
65 [NonSerialized()]
66 protected Timer m_timer = new Timer();
67
68 [NonSerialized()]
69 private SceneObjectGroup m_group;
70
71 private PlayMode m_mode = PlayMode.Forward;
72 private DataFormat m_data = DataFormat.Translation | DataFormat.Rotation;
73
74 private bool m_running = false;
75 [NonSerialized()]
76 private bool m_selected = false;
77
78 private int m_iterations = 0;
79
80 private const double timerInterval = 50.0;
81
82 public DataFormat Data
83 {
84 get { return m_data; }
85 }
86
87 public bool Selected
88 {
89 set
90 {
91 if (value)
92 {
93 // Once we're let go, recompute positions
94 if (m_selected)
95 UpdateSceneObject(m_group);
96 }
97 else
98 {
99 // Save selection position in case we get moved
100 if (!m_selected)
101 m_serializedPosition = m_group.AbsolutePosition;
102 }
103 m_selected = value; }
104 }
105
106 public static KeyframeMotion FromData(SceneObjectGroup grp, Byte[] data)
107 {
108 MemoryStream ms = new MemoryStream(data);
109
110 BinaryFormatter fmt = new BinaryFormatter();
111
112 KeyframeMotion newMotion = (KeyframeMotion)fmt.Deserialize(ms);
113
114 // This will be started when position is updated
115 newMotion.m_timer = new Timer();
116 newMotion.m_timer.Interval = (int)timerInterval;
117 newMotion.m_timer.AutoReset = true;
118 newMotion.m_timer.Elapsed += newMotion.OnTimer;
119
120 return newMotion;
121 }
122
123 public void UpdateSceneObject(SceneObjectGroup grp)
124 {
125 m_group = grp;
126 Vector3 offset = grp.AbsolutePosition - m_serializedPosition;
127
128 m_basePosition += offset;
129 m_currentFrame.Position += offset;
130 for (int i = 0 ; i < m_frames.Count ; i++)
131 {
132 Keyframe k = m_frames[i];
133 k.Position += offset;
134 m_frames[i] = k;
135 }
136
137 if (m_running)
138 Start();
139 }
140
141 public KeyframeMotion(SceneObjectGroup grp, PlayMode mode, DataFormat data)
142 {
143 m_mode = mode;
144 m_data = data;
145
146 m_group = grp;
147 m_basePosition = grp.AbsolutePosition;
148 m_baseRotation = grp.GroupRotation;
149
150 m_timer.Interval = (int)timerInterval;
151 m_timer.AutoReset = true;
152 m_timer.Elapsed += OnTimer;
153 }
154
155 public void SetKeyframes(Keyframe[] frames)
156 {
157 m_keyframes = frames;
158 }
159
160 public void Start()
161 {
162 if (m_keyframes.Length > 0)
163 m_timer.Start();
164 m_running = true;
165 }
166
167 public void Stop()
168 {
169 // Failed object creation
170 if (m_timer == null)
171 return;
172 m_timer.Stop();
173
174 m_basePosition = m_group.AbsolutePosition;
175 m_baseRotation = m_group.GroupRotation;
176
177 m_group.RootPart.Velocity = Vector3.Zero;
178 m_group.RootPart.UpdateAngularVelocity(Vector3.Zero);
179 m_group.SendGroupRootTerseUpdate();
180
181 m_frames.Clear();
182 m_running = false;
183 }
184
185 public void Pause()
186 {
187 m_group.RootPart.Velocity = Vector3.Zero;
188 m_group.RootPart.UpdateAngularVelocity(Vector3.Zero);
189 m_group.SendGroupRootTerseUpdate();
190
191 m_timer.Stop();
192 m_running = false;
193 }
194
195 private void GetNextList()
196 {
197 m_frames.Clear();
198 Vector3 pos = m_basePosition;
199 Quaternion rot = m_baseRotation;
200
201 if (m_mode == PlayMode.Loop || m_mode == PlayMode.PingPong || m_iterations == 0)
202 {
203 int direction = 1;
204 if (m_mode == PlayMode.Reverse || ((m_mode == PlayMode.PingPong) && ((m_iterations & 1) != 0)))
205 direction = -1;
206
207 int start = 0;
208 int end = m_keyframes.Length;
209// if (m_mode == PlayMode.PingPong && m_keyframes.Length > 1)
210// end = m_keyframes.Length - 1;
211
212 if (direction < 0)
213 {
214 start = m_keyframes.Length - 1;
215 end = -1;
216// if (m_mode == PlayMode.PingPong && m_keyframes.Length > 1)
217// end = 0;
218 }
219
220 for (int i = start; i != end ; i += direction)
221 {
222 Keyframe k = m_keyframes[i];
223
224 if (k.Position.HasValue)
225 k.Position = (k.Position * direction) + pos;
226 else
227 k.Position = pos;
228
229 k.StartRotation = rot;
230 if (k.Rotation.HasValue)
231 {
232 if (direction == -1)
233 k.Rotation = Quaternion.Conjugate((Quaternion)k.Rotation);
234 k.Rotation = rot * k.Rotation;
235 }
236 else
237 {
238 k.Rotation = rot;
239 }
240
241 float angle = 0;
242
243 float aa = k.StartRotation.X * k.StartRotation.X + k.StartRotation.Y * k.StartRotation.Y + k.StartRotation.Z * k.StartRotation.Z + k.StartRotation.W * k.StartRotation.W;
244 float bb = ((Quaternion)k.Rotation).X * ((Quaternion)k.Rotation).X + ((Quaternion)k.Rotation).Y * ((Quaternion)k.Rotation).Y + ((Quaternion)k.Rotation).Z * ((Quaternion)k.Rotation).Z + ((Quaternion)k.Rotation).W * ((Quaternion)k.Rotation).W;
245 float aa_bb = aa * bb;
246
247 if (aa_bb == 0)
248 {
249 angle = 0;
250 }
251 else
252 {
253 float ab = k.StartRotation.X * ((Quaternion)k.Rotation).X +
254 k.StartRotation.Y * ((Quaternion)k.Rotation).Y +
255 k.StartRotation.Z * ((Quaternion)k.Rotation).Z +
256 k.StartRotation.W * ((Quaternion)k.Rotation).W;
257 float q = (ab * ab) / aa_bb;
258
259 if (q > 1.0f)
260 {
261 angle = 0;
262 }
263 else
264 {
265 angle = (float)Math.Acos(2 * q - 1);
266 }
267 }
268
269 k.AngularVelocity = (new Vector3(0, 0, 1) * (Quaternion)k.Rotation) * (angle / (k.TimeMS / 1000));
270 k.TimeTotal = k.TimeMS;
271
272 m_frames.Add(k);
273
274 pos = (Vector3)k.Position;
275 rot = (Quaternion)k.Rotation;
276 }
277
278 m_basePosition = pos;
279 m_baseRotation = rot;
280
281 m_iterations++;
282 }
283 }
284
285 protected void OnTimer(object sender, ElapsedEventArgs e)
286 {
287 if (m_frames.Count == 0)
288 {
289 GetNextList();
290
291 if (m_frames.Count == 0)
292 {
293 Stop();
294 return;
295 }
296
297 m_currentFrame = m_frames[0];
298 }
299
300 if (m_selected)
301 {
302 if (m_group.RootPart.Velocity != Vector3.Zero)
303 {
304 m_group.RootPart.Velocity = Vector3.Zero;
305 m_group.SendGroupRootTerseUpdate();
306 }
307 return;
308 }
309
310 // Do the frame processing
311 double steps = (double)m_currentFrame.TimeMS / timerInterval;
312 float complete = ((float)m_currentFrame.TimeTotal - (float)m_currentFrame.TimeMS) / (float)m_currentFrame.TimeTotal;
313
314 if (steps <= 1.0)
315 {
316 m_currentFrame.TimeMS = 0;
317
318 m_group.AbsolutePosition = (Vector3)m_currentFrame.Position;
319 m_group.UpdateGroupRotationR((Quaternion)m_currentFrame.Rotation);
320 }
321 else
322 {
323 Vector3 v = (Vector3)m_currentFrame.Position - m_group.AbsolutePosition;
324 Vector3 motionThisFrame = v / (float)steps;
325 v = v * 1000 / m_currentFrame.TimeMS;
326
327 bool update = false;
328
329 if (Vector3.Mag(motionThisFrame) >= 0.05f)
330 {
331 m_group.AbsolutePosition += motionThisFrame;
332 m_group.RootPart.Velocity = v;
333 update = true;
334 }
335
336 if ((Quaternion)m_currentFrame.Rotation != m_group.GroupRotation)
337 {
338 Quaternion current = m_group.GroupRotation;
339
340 Quaternion step = Quaternion.Slerp(m_currentFrame.StartRotation, (Quaternion)m_currentFrame.Rotation, complete);
341
342 float angle = 0;
343
344 float aa = current.X * current.X + current.Y * current.Y + current.Z * current.Z + current.W * current.W;
345 float bb = step.X * step.X + step.Y * step.Y + step.Z * step.Z + step.W * step.W;
346 float aa_bb = aa * bb;
347
348 if (aa_bb == 0)
349 {
350 angle = 0;
351 }
352 else
353 {
354 float ab = current.X * step.X +
355 current.Y * step.Y +
356 current.Z * step.Z +
357 current.W * step.W;
358 float q = (ab * ab) / aa_bb;
359
360 if (q > 1.0f)
361 {
362 angle = 0;
363 }
364 else
365 {
366 angle = (float)Math.Acos(2 * q - 1);
367 }
368 }
369
370 if (angle > 0.01f)
371 {
372 m_group.UpdateGroupRotationR(step);
373 //m_group.RootPart.UpdateAngularVelocity(m_currentFrame.AngularVelocity / 2);
374 update = true;
375 }
376 }
377
378 if (update)
379 m_group.SendGroupRootTerseUpdate();
380 }
381
382 m_currentFrame.TimeMS -= (int)timerInterval;
383
384 if (m_currentFrame.TimeMS <= 0)
385 {
386 m_group.RootPart.Velocity = Vector3.Zero;
387 m_group.RootPart.UpdateAngularVelocity(Vector3.Zero);
388 m_group.SendGroupRootTerseUpdate();
389
390 m_frames.RemoveAt(0);
391 if (m_frames.Count > 0)
392 m_currentFrame = m_frames[0];
393 }
394 }
395
396 public Byte[] Serialize()
397 {
398 MemoryStream ms = new MemoryStream();
399 m_timer.Stop();
400
401 BinaryFormatter fmt = new BinaryFormatter();
402 SceneObjectGroup tmp = m_group;
403 m_group = null;
404 m_serializedPosition = tmp.AbsolutePosition;
405 fmt.Serialize(ms, this);
406 m_group = tmp;
407 return ms.ToArray();
408 }
409
410 public void CrossingFailure()
411 {
412 // The serialization has stopped the timer, so let's wait a moment
413 // then retry the crossing. We'll get back here if it fails.
414 Util.FireAndForget(delegate (object x)
415 {
416 Thread.Sleep(60000);
417 if (m_running)
418 m_timer.Start();
419 });
420 }
421 }
422}