1 | /************************************************************************************ |
---|
2 | * Copyright (C) 2008 by Politehnica University of Bucharest and Rutgers University |
---|
3 | * All rights reserved. |
---|
4 | * Refer to LICENSE for terms and conditions of use. |
---|
5 | ***********************************************************************************/ |
---|
6 | package vnsim.applications.trafficview; |
---|
7 | |
---|
8 | |
---|
9 | import java.io.ByteArrayInputStream; |
---|
10 | import java.io.ByteArrayOutputStream; |
---|
11 | import java.io.IOException; |
---|
12 | import java.io.Serializable; |
---|
13 | import java.nio.ByteBuffer; |
---|
14 | import java.util.ArrayList; |
---|
15 | import java.util.LinkedList; |
---|
16 | import java.util.ListIterator; |
---|
17 | import java.util.Random; |
---|
18 | import java.util.TreeMap; |
---|
19 | |
---|
20 | import vnsim.core.CarInfo; |
---|
21 | import vnsim.core.Communicator; |
---|
22 | import vnsim.core.Engine; |
---|
23 | import vnsim.core.events.ReceiveEvent; |
---|
24 | import vnsim.core.events.SendEvent; |
---|
25 | import vnsim.core.events.UnicastSendEvent; |
---|
26 | import vnsim.map.object.Globals; |
---|
27 | import vnsim.map.object.PeanoKey; |
---|
28 | import vnsim.map.object.Point; |
---|
29 | import vnsim.map.object.Road; |
---|
30 | import vnsim.network.RadioDev; |
---|
31 | import vnsim.vehicular.simulator.CarInstance; |
---|
32 | import vnsim.vehicular.simulator.intersections.Intersection; |
---|
33 | |
---|
34 | |
---|
35 | |
---|
36 | /** |
---|
37 | * Class that implements the TrafficView applications. Vehicle datasets are |
---|
38 | * broadcasted on a regular basis. The vehicle dataset is maintained based on |
---|
39 | * incoming messages from neighbor vehicles. |
---|
40 | */ |
---|
41 | public class SimulatedCarInfo extends CarInfo implements Communicator |
---|
42 | { |
---|
43 | // protected int vehicleId; |
---|
44 | |
---|
45 | private CarInstance realPos; |
---|
46 | |
---|
47 | // public ArrayList <SimulatedCarInfo> neighbors = new ArrayList<SimulatedCarInfo>(); |
---|
48 | public ArrayList <CarInfo> trafficDB = new ArrayList<CarInfo>(); |
---|
49 | |
---|
50 | private int lastMediumTransmission = 0; |
---|
51 | |
---|
52 | //the following moments of time when a packet should be received completely (ReceiveEvents) |
---|
53 | public LinkedList<ReceiveEvent> receiveEvents = new LinkedList<ReceiveEvent>(); |
---|
54 | |
---|
55 | //Petroaca - the emergency channel receive events |
---|
56 | public LinkedList<ReceiveEvent> receiveEventsEmergency = new LinkedList<ReceiveEvent>(); |
---|
57 | |
---|
58 | public TreeMap<Integer,Integer> messagePeriods = new TreeMap<Integer,Integer>(); |
---|
59 | |
---|
60 | public int messageNo = 1; |
---|
61 | public int singleMessageNo = -2; |
---|
62 | |
---|
63 | public boolean isEquipped; |
---|
64 | |
---|
65 | public boolean promiscuousMode = false; |
---|
66 | public boolean pulseMessage = true; |
---|
67 | int reportedNeighbors = 0; |
---|
68 | double neighPlusDistance = 0; |
---|
69 | double neighMinusDistance = 0; |
---|
70 | |
---|
71 | // public SimulationRecord record; |
---|
72 | |
---|
73 | public static final int STANDARD_MESSAGE_PERIOD = 500; // milis |
---|
74 | public static int STANDARD_MESSAGE_ID = 1; |
---|
75 | |
---|
76 | public int infoTime = -1; |
---|
77 | public int currentPhase = -1; |
---|
78 | public int phaseRemainingTime = -1; |
---|
79 | public double queueSize = -1; |
---|
80 | public int interGreenPhaseTime = -1; |
---|
81 | public int cycleLength = -1; |
---|
82 | |
---|
83 | public Intersection intersection; //the following intersection |
---|
84 | |
---|
85 | private static Random random = new Random(System.currentTimeMillis()); |
---|
86 | |
---|
87 | private RadioDev radio; |
---|
88 | |
---|
89 | public SimulatedCarInfo(){ |
---|
90 | } |
---|
91 | |
---|
92 | public SimulatedCarInfo(int vehicleId){ |
---|
93 | this.vehicleId = vehicleId; |
---|
94 | // radio = new RadioDev(this); |
---|
95 | } |
---|
96 | |
---|
97 | public SimulatedCarInfo(int vehicleId, byte lane, double speed, short roadIdx, short pointIdx, byte direction, double offset) |
---|
98 | { |
---|
99 | super(speed, roadIdx, pointIdx, direction, offset, lane); |
---|
100 | this.vehicleId = vehicleId; |
---|
101 | |
---|
102 | int chance = (int) (100.0 * random.nextDouble()); |
---|
103 | if (chance < Globals.PERCENT_EQUIPPED_VEHICLES) { |
---|
104 | isEquipped = true; |
---|
105 | } else { |
---|
106 | isEquipped = false; |
---|
107 | } |
---|
108 | radio = new RadioDev(this); |
---|
109 | } |
---|
110 | |
---|
111 | public SimulatedCarInfo(SimulatedCarInfo sci) |
---|
112 | { |
---|
113 | super(sci.speed, sci.roadIdx, sci.pointIdx, sci.direction, sci.offset, sci.lane); |
---|
114 | this.vehicleId = sci.vehicleId; |
---|
115 | this.timestamp = sci.timestamp; |
---|
116 | radio = new RadioDev(this); |
---|
117 | } |
---|
118 | |
---|
119 | public void init() |
---|
120 | { |
---|
121 | int standardFPSPeriod = (int)((double)(STANDARD_MESSAGE_PERIOD * Globals.engine.fps) / 1000); |
---|
122 | messagePeriods.put(STANDARD_MESSAGE_ID, new Integer(standardFPSPeriod)); |
---|
123 | } |
---|
124 | |
---|
125 | public void update() |
---|
126 | { |
---|
127 | this.direction = realPos.getDirection(); |
---|
128 | this.roadIdx = realPos.getRoadIdx(); |
---|
129 | this.pointIdx = realPos.getPointIdx(); |
---|
130 | this.speed = realPos.getSpeed(); |
---|
131 | this.lane = realPos.getLane(); |
---|
132 | this.offset = realPos.getOffset(); |
---|
133 | this.timestamp = realPos.getTimestamp(); |
---|
134 | this.intersection = realPos.intersection; |
---|
135 | } |
---|
136 | |
---|
137 | public boolean isPromiscuousMode() { |
---|
138 | return promiscuousMode; |
---|
139 | } |
---|
140 | public void setPromiscuousMode(boolean promiscuousMode) { |
---|
141 | this.promiscuousMode = promiscuousMode; |
---|
142 | } |
---|
143 | |
---|
144 | public boolean equals(Object arg0) { |
---|
145 | if (!(arg0 instanceof CarInfo)) { |
---|
146 | // System.out.println(arg0.getClass().getCanonicalName()); |
---|
147 | return false; |
---|
148 | } |
---|
149 | CarInfo sci = (CarInfo)arg0; |
---|
150 | return (vehicleId == sci.getVehicleId()); |
---|
151 | } |
---|
152 | |
---|
153 | /** |
---|
154 | * NeighborDiscovery mode |
---|
155 | * @param bytesReceived |
---|
156 | */ |
---|
157 | public void onReceive(byte[] bytesReceived, Serializable message, Communicator sender){ |
---|
158 | if (!isEquipped || bytesReceived == null) |
---|
159 | return; |
---|
160 | |
---|
161 | if (bytesReceived[0] == Globals.PROT_SETOFCARS){ |
---|
162 | parsePacket(bytesReceived); |
---|
163 | } |
---|
164 | if (bytesReceived[0] == Globals.PROT_NEIGHBOR_DISCOVERY){ |
---|
165 | // first record in message - the sender |
---|
166 | CarInfo sc = new CarInfo(); |
---|
167 | sc.wrap(bytesReceived, 2); |
---|
168 | |
---|
169 | boolean added = false; |
---|
170 | for (int i=0;i<trafficDB.size();i++) |
---|
171 | if ((trafficDB.get(i)).getVehicleId() == sc.getVehicleId()){ |
---|
172 | synchronized(trafficDB){ |
---|
173 | trafficDB.set(i,sc); |
---|
174 | added = true; |
---|
175 | } |
---|
176 | break; |
---|
177 | } |
---|
178 | if (!added) |
---|
179 | synchronized(trafficDB){ |
---|
180 | trafficDB.add(sc); |
---|
181 | } |
---|
182 | } |
---|
183 | if (bytesReceived[0] == Globals.PROT_TL_FEEDBACK){ |
---|
184 | |
---|
185 | PeanoKey pkx = null; |
---|
186 | if (realPos.intersection != null){ |
---|
187 | Road rx = Globals.map.roads.get(realPos.intersection.segments.get(0).roadIndex); |
---|
188 | Point px = rx.points.get(realPos.intersection.segments.get(0).pointIndex); |
---|
189 | pkx = Globals.map.peanoKeys.get(px.getPeanoKeyIdx()); |
---|
190 | } |
---|
191 | |
---|
192 | ByteBuffer bb = ByteBuffer.wrap(bytesReceived); |
---|
193 | bb.get(); |
---|
194 | |
---|
195 | int cycleLength = bb.getShort(); |
---|
196 | int segno = bb.get(); |
---|
197 | int ridx, pidx; |
---|
198 | Road r = null; |
---|
199 | Point p = null; |
---|
200 | try{ |
---|
201 | ridx = bb.getShort(); |
---|
202 | r = Globals.map.roads.get(ridx); |
---|
203 | pidx = bb.getShort(); |
---|
204 | p = r.points.get(pidx); |
---|
205 | PeanoKey pk = Globals.map.peanoKeys.get(p.getPeanoKeyIdx()); |
---|
206 | if (pkx != null && !pk.equals(pkx)) |
---|
207 | return; |
---|
208 | }catch(Exception e){ |
---|
209 | System.out.println("Bad TL feedback message: \n"); |
---|
210 | e.printStackTrace(); |
---|
211 | return; |
---|
212 | } |
---|
213 | phaseRemainingTime = -1; |
---|
214 | currentPhase = -1; |
---|
215 | queueSize = -1; |
---|
216 | infoTime = Globals.engine.crtTime; |
---|
217 | interGreenPhaseTime = -1; |
---|
218 | this.cycleLength = cycleLength; |
---|
219 | |
---|
220 | for (int i = 0; i < segno; i++){ |
---|
221 | int dir = bb.get(); |
---|
222 | int color = bb.get(); |
---|
223 | int remaining = bb.getShort(); |
---|
224 | int interPhase = bb.getShort(); |
---|
225 | |
---|
226 | double qsize = -1; |
---|
227 | for (int j = 1; j <= r.laneNo; j++){ |
---|
228 | double qs = bb.getDouble(); |
---|
229 | if (j == this.getLane()) |
---|
230 | qsize = qs; |
---|
231 | } |
---|
232 | if (ridx == this.roadIdx |
---|
233 | && ((this.getPointIdx() > pidx && this.direction == 0 && dir == 1) || |
---|
234 | (this.getPointIdx() < pidx && this.direction == 1 && dir == 0)) |
---|
235 | ){ |
---|
236 | phaseRemainingTime = remaining; |
---|
237 | currentPhase = color; |
---|
238 | queueSize = qsize; |
---|
239 | interGreenPhaseTime = interPhase; |
---|
240 | if (Globals.engine.startedWithGUI && Globals.demo.mv.currentCar != null && this.equals(Globals.demo.mv.currentCar)){ |
---|
241 | Globals.demo.st.setSemTime(color, remaining); |
---|
242 | Globals.demo.st.setDemand("sw", (int)(queueSize*1000), 0, false); |
---|
243 | } |
---|
244 | } |
---|
245 | |
---|
246 | |
---|
247 | |
---|
248 | if (i <segno - 1) |
---|
249 | try{ |
---|
250 | ridx = bb.getShort(); |
---|
251 | r = Globals.map.roads.get(ridx); |
---|
252 | pidx = bb.getShort(); |
---|
253 | p = r.points.get(pidx); |
---|
254 | }catch(Exception e){ |
---|
255 | System.out.println("Bad TL feedback message: \n"); |
---|
256 | e.printStackTrace(); |
---|
257 | return; |
---|
258 | } |
---|
259 | } |
---|
260 | } |
---|
261 | } |
---|
262 | |
---|
263 | public static int CRTDIR = 0; |
---|
264 | static int OPPDIR = 1; |
---|
265 | static int REST = 2; |
---|
266 | int comState = CRTDIR; //send records for the same street and direction as localInfo |
---|
267 | // ArrayList<SimulatedCarInfo> trafficDBcopy = null; |
---|
268 | static vnsim.map.object.Map map = Globals.map; |
---|
269 | |
---|
270 | /** |
---|
271 | * Create the message to be broadcasted to neighbors. This contains either |
---|
272 | * the vehicles going in the same direction, oposite direction or all the |
---|
273 | * other cars |
---|
274 | * |
---|
275 | */ |
---|
276 | public byte[] prepareMessage(int messageType){ |
---|
277 | byte[] bytesToSend = null; |
---|
278 | if (realPos.finished) |
---|
279 | return null; |
---|
280 | if (!isEquipped) |
---|
281 | return null; |
---|
282 | |
---|
283 | //for messageType = 0, standard neighborDiscovery message |
---|
284 | if (messageType == STANDARD_MESSAGE_ID){ |
---|
285 | //neighbor discovery |
---|
286 | if (messageType == Globals.PROT_NEIGHBOR_DISCOVERY){ |
---|
287 | byte[] localinfo = toBytes(); |
---|
288 | ByteArrayOutputStream outBytes = new ByteArrayOutputStream(); |
---|
289 | outBytes.write(Globals.PROT_NEIGHBOR_DISCOVERY); |
---|
290 | outBytes.write(CRTDIR); |
---|
291 | try{ |
---|
292 | outBytes.write(localinfo); |
---|
293 | }catch(IOException e){ |
---|
294 | } |
---|
295 | bytesToSend = outBytes.toByteArray(); |
---|
296 | } |
---|
297 | if (messageType == Globals.PROT_SETOFCARS){ |
---|
298 | |
---|
299 | if (Globals.probabilisticModel){ |
---|
300 | decideTransmissionMode(); |
---|
301 | |
---|
302 | if (pulseMessage){ |
---|
303 | if (isPromiscuousMode() && speed > 1){ |
---|
304 | super.state = 0; |
---|
305 | setPromiscuousMode(false); |
---|
306 | } |
---|
307 | if (super.state == 3){ |
---|
308 | setPromiscuousMode(true); |
---|
309 | return null; |
---|
310 | } |
---|
311 | } |
---|
312 | else |
---|
313 | { |
---|
314 | setPromiscuousMode(false); |
---|
315 | super.state = 0; |
---|
316 | } |
---|
317 | } |
---|
318 | // if (li.getToSend().getRoadIdx() != li.getPrevSent().getRoadIdx()){ |
---|
319 | // state = CRTDIR; |
---|
320 | // } |
---|
321 | |
---|
322 | int carsno; |
---|
323 | ByteArrayOutputStream outBytes = null; |
---|
324 | |
---|
325 | while(true){ |
---|
326 | int roadIndex = -1, roadIndex1 = -1; |
---|
327 | int dir = -1, direction1 = -1; |
---|
328 | carsno = 1; |
---|
329 | int off = 0; |
---|
330 | outBytes = new ByteArrayOutputStream(); |
---|
331 | |
---|
332 | if (comState == CRTDIR){ |
---|
333 | roadIndex = getRoadIdx(); |
---|
334 | dir = getDirection(); |
---|
335 | }else |
---|
336 | if (comState == OPPDIR){ |
---|
337 | roadIndex = getRoadIdx(); |
---|
338 | dir = 1 - getDirection(); |
---|
339 | } |
---|
340 | |
---|
341 | outBytes.write(Globals.PROT_SETOFCARS); // leave room for number of records |
---|
342 | outBytes.write(0); // leave room for number of records |
---|
343 | outBytes.write(comState); |
---|
344 | off++; |
---|
345 | |
---|
346 | try{ |
---|
347 | //local information |
---|
348 | if (this.speed < 1 ){ |
---|
349 | super.state = 3; //promiscuous mode |
---|
350 | }else{ |
---|
351 | super.state = 0; |
---|
352 | } |
---|
353 | if (realPos.turningLeft) |
---|
354 | setSignal((byte)1); |
---|
355 | else |
---|
356 | setSignal((byte)0); |
---|
357 | byte[] car = toBytes(); |
---|
358 | outBytes.write(car); |
---|
359 | off += car.length; |
---|
360 | |
---|
361 | |
---|
362 | if (!pulseMessage){ |
---|
363 | ListIterator<CarInfo> it = trafficDB.listIterator(); |
---|
364 | for (; it.hasNext(); ){ |
---|
365 | CarInfo sc = it.next(); |
---|
366 | if (sc.getRoadIdx() == roadIndex && sc.getDirection() == dir){ |
---|
367 | car = sc.toBytes(); |
---|
368 | if (off + car.length > Globals.MTU_SIZE - 100){ |
---|
369 | // no more room in the packet for this car |
---|
370 | //TODO |
---|
371 | break; |
---|
372 | } |
---|
373 | outBytes.write(car); |
---|
374 | off += car.length; |
---|
375 | carsno ++; |
---|
376 | } |
---|
377 | |
---|
378 | } |
---|
379 | } |
---|
380 | }catch(IOException e){ |
---|
381 | System.out.println("Error sending cars"); |
---|
382 | e.printStackTrace(); |
---|
383 | } |
---|
384 | |
---|
385 | if (comState == OPPDIR && carsno == 1){ |
---|
386 | // no cars on the opposed movement |
---|
387 | // comState = REST; |
---|
388 | comState = CRTDIR; |
---|
389 | continue; |
---|
390 | } |
---|
391 | // if (comState == REST && carsno == 1){ |
---|
392 | // // no more cars |
---|
393 | // comState = CRTDIR; |
---|
394 | // } |
---|
395 | break; |
---|
396 | } |
---|
397 | |
---|
398 | bytesToSend = outBytes.toByteArray(); |
---|
399 | bytesToSend[1] = (byte)carsno; //set the first byte to be the number of records |
---|
400 | |
---|
401 | if (comState == CRTDIR){ |
---|
402 | comState = OPPDIR; |
---|
403 | reportedNeighbors = 0; |
---|
404 | }else |
---|
405 | if (comState == OPPDIR) |
---|
406 | comState = CRTDIR; |
---|
407 | // comState = REST; |
---|
408 | } |
---|
409 | } |
---|
410 | |
---|
411 | return bytesToSend; |
---|
412 | } |
---|
413 | |
---|
414 | static Random randgen = new Random(); |
---|
415 | public static int count = 0; |
---|
416 | public void decideTransmissionMode(){ |
---|
417 | pulseMessage = false; |
---|
418 | double liderProbability; |
---|
419 | |
---|
420 | if (reportedNeighbors == 0){ |
---|
421 | return; |
---|
422 | } |
---|
423 | if (neighMinusDistance + neighPlusDistance < 0.010){ |
---|
424 | liderProbability = (double)1 / (reportedNeighbors); |
---|
425 | }else |
---|
426 | if (neighMinusDistance + neighPlusDistance < Engine.WIRELESS_RANGE){ |
---|
427 | liderProbability = (double)3 / (reportedNeighbors); |
---|
428 | }else{ |
---|
429 | liderProbability = (double)5 / (reportedNeighbors); |
---|
430 | } |
---|
431 | double rand = randgen.nextDouble(); |
---|
432 | |
---|
433 | |
---|
434 | // System.out.println(liderProbability + " " +reportedNeighbors+ " "+(neighMinusDistance + neighPlusDistance)); |
---|
435 | if (rand > liderProbability) |
---|
436 | pulseMessage = true; |
---|
437 | |
---|
438 | } |
---|
439 | /** |
---|
440 | * Parses a TrafficView packet, and updates the local database accordingly. |
---|
441 | * |
---|
442 | * @param buffer |
---|
443 | */ |
---|
444 | public void parsePacket(byte buffer[]){ |
---|
445 | ByteArrayInputStream byteStream = new ByteArrayInputStream(buffer); |
---|
446 | byte numberOfRecords, recordsRead = 0; |
---|
447 | int offset; |
---|
448 | byte[] b = new byte[Globals.NONAGG_RECORD_SIZE]; |
---|
449 | |
---|
450 | // read protocol byte |
---|
451 | byteStream.read(); |
---|
452 | numberOfRecords = (byte)byteStream.read(); |
---|
453 | if (numberOfRecords == -1) |
---|
454 | return; |
---|
455 | offset = 2; |
---|
456 | int messageRoadDirection = byteStream.read(); |
---|
457 | |
---|
458 | //The records in the packet represent cars that run on a street in a |
---|
459 | //certain direction. |
---|
460 | //The first record is always the car that sent the packet even if it is on |
---|
461 | //a different street or runs in the opposite direction |
---|
462 | while (recordsRead < numberOfRecords){ |
---|
463 | |
---|
464 | int n = byteStream.read(b, 0, Globals.NONAGG_RECORD_SIZE); |
---|
465 | if (n == -1 || n < Globals.NONAGG_RECORD_SIZE){ |
---|
466 | break; |
---|
467 | } |
---|
468 | offset += Globals.NONAGG_RECORD_SIZE; |
---|
469 | recordsRead ++; |
---|
470 | |
---|
471 | CarInfo sc = new CarInfo(); |
---|
472 | sc.wrap(b); |
---|
473 | if (recordsRead == 1 && sc.getRoadIdx() != getRoadIdx()){ |
---|
474 | return; |
---|
475 | } |
---|
476 | |
---|
477 | |
---|
478 | if (sc.getVehicleId() == getVehicleId() || |
---|
479 | Globals.engine.crtTime - sc.getTimestamp() > Globals.NEIGHBOR_EXPIRES) |
---|
480 | continue; |
---|
481 | |
---|
482 | CarInfo storedCar = null; |
---|
483 | //no validation, other than timestamp check for each incoming car record |
---|
484 | int i = trafficDB.indexOf(sc); |
---|
485 | if (i!=-1){ |
---|
486 | storedCar = trafficDB.get(i); |
---|
487 | if (storedCar.getVehicleId() == sc.getVehicleId()){ |
---|
488 | if (storedCar.getTimestamp() <= sc.getTimestamp()) |
---|
489 | { |
---|
490 | synchronized(trafficDB){ |
---|
491 | trafficDB.set(i,sc); |
---|
492 | } |
---|
493 | } |
---|
494 | } |
---|
495 | |
---|
496 | |
---|
497 | }else{ |
---|
498 | synchronized(trafficDB){ |
---|
499 | trafficDB.add(sc); |
---|
500 | // System.out.println("Add "+dc +" at "+(Globals.trafficDB.size()-1)); |
---|
501 | } |
---|
502 | } |
---|
503 | if (recordsRead == 1){ |
---|
504 | //first record is the car that sent the packet |
---|
505 | |
---|
506 | reportedNeighbors ++; |
---|
507 | Road r = Globals.map.roads.get(roadIdx); |
---|
508 | Point p1 = r.points.get(pointIdx); |
---|
509 | Point p2 = r.points.get(sc.getPointIdx()); |
---|
510 | |
---|
511 | double distance = Math.abs(p1.getDistance() - p2.getDistance()); |
---|
512 | if (sc.getPointIdx() > this.getPointIdx() && distance > neighPlusDistance) |
---|
513 | neighPlusDistance = distance; |
---|
514 | if (sc.getPointIdx() < this.getPointIdx() && distance > neighMinusDistance) |
---|
515 | neighMinusDistance = distance; |
---|
516 | } |
---|
517 | |
---|
518 | // For the moment, I'm interested only in road I'm driving on, or in roads |
---|
519 | // connected to it. This is the relevance area. |
---|
520 | // If I receive a packet for cars that are not in this area, I drop the |
---|
521 | // packet, after I store the direct neighbor. |
---|
522 | if (recordsRead == 1 && sc.getRoadIdx() != getRoadIdx()){ |
---|
523 | // && map.connectionPoint(sc.getRoadIdx(), getRoadIdx()) ==-1 ){ |
---|
524 | return; |
---|
525 | } |
---|
526 | } |
---|
527 | } |
---|
528 | |
---|
529 | |
---|
530 | |
---|
531 | |
---|
532 | |
---|
533 | /** |
---|
534 | * delay and period of the new event (in frames) |
---|
535 | * @return the identifier of the new message type |
---|
536 | */ |
---|
537 | public int scheduleNewSendEvent(int delay, int period){ |
---|
538 | Engine engine = Globals.engine; |
---|
539 | int newType = messageNo; |
---|
540 | messageNo ++; |
---|
541 | |
---|
542 | messagePeriods.put(newType, new Integer(period)); |
---|
543 | engine.schedEvent(new SendEvent(engine.crtTime + delay, this, newType)); |
---|
544 | return newType; |
---|
545 | } |
---|
546 | |
---|
547 | /** |
---|
548 | * delay and period of the new event (in frames) |
---|
549 | * if id is not null then, the transmission will be a unicast to the car with the specified id |
---|
550 | * @return the identifier of the new message type |
---|
551 | */ |
---|
552 | public int scheduleSingleSendEvent(int delay, Integer id){ |
---|
553 | Engine engine = Globals.engine; |
---|
554 | int newType = singleMessageNo; |
---|
555 | singleMessageNo --; |
---|
556 | |
---|
557 | // if (singleMessageNo < MIN_NEG_INT) singleMessageNo = -1; |
---|
558 | |
---|
559 | if (id == null){ |
---|
560 | engine.schedEvent(new SendEvent(engine.crtTime + delay, this, newType)); |
---|
561 | }else{ |
---|
562 | engine.schedEvent(new UnicastSendEvent(engine.crtTime + delay, this, newType, id.intValue())); |
---|
563 | } |
---|
564 | return newType; |
---|
565 | } |
---|
566 | |
---|
567 | //Petroaca - emergency type message scheduler |
---|
568 | public void scheduleEmergencySendEvent(int delay) |
---|
569 | { |
---|
570 | Engine engine=Globals.engine; |
---|
571 | |
---|
572 | if(Globals.MULTI_CHANNEL) |
---|
573 | engine.schedEventEmergency(new SendEvent(engine.crtTime+delay,this,-1)); |
---|
574 | else |
---|
575 | engine.schedEvent(new SendEvent(engine.crtTime+delay,this,-1)); |
---|
576 | |
---|
577 | } |
---|
578 | |
---|
579 | public boolean isPeriodicalMessage(int messageType){ |
---|
580 | return (messageType >= 0); |
---|
581 | } |
---|
582 | |
---|
583 | public int getPeriod(int messageType){ |
---|
584 | try{ |
---|
585 | return messagePeriods.get(new Integer(messageType)).intValue(); |
---|
586 | }catch(Exception e){ |
---|
587 | return -1; |
---|
588 | } |
---|
589 | } |
---|
590 | |
---|
591 | public String toString(){ |
---|
592 | return "("+super.toString()+")"; |
---|
593 | } |
---|
594 | |
---|
595 | // public String getRealPos(){ |
---|
596 | // return "("+getVehicleId()+" - "+realPos.toString()+")"; |
---|
597 | // } |
---|
598 | |
---|
599 | public void setRealPos(CarInstance realPos) { |
---|
600 | if (this.realPos != null){ |
---|
601 | realPos.deleteCarToPointMapping(); |
---|
602 | } |
---|
603 | this.realPos = realPos; |
---|
604 | realPos.setSimulatedCarInfo(this); |
---|
605 | realPos.updateCarToPointMapping(); |
---|
606 | |
---|
607 | } |
---|
608 | public CarInstance getRealPos() { |
---|
609 | return realPos; |
---|
610 | } |
---|
611 | |
---|
612 | public int getLastMediumTransmition() { |
---|
613 | return lastMediumTransmission; |
---|
614 | } |
---|
615 | public void setLastMediumTransmition(int lastMediumTransmission) { |
---|
616 | this.lastMediumTransmission = lastMediumTransmission; |
---|
617 | } |
---|
618 | |
---|
619 | public boolean mediumAvailable(int crtTime){ |
---|
620 | int fps = Globals.engine.fps; |
---|
621 | if (crtTime - lastMediumTransmission >= Globals.WIRELESS_TRANSMISSION_FRAMES) |
---|
622 | return true; |
---|
623 | return false; |
---|
624 | } |
---|
625 | |
---|
626 | public RadioDev getRadio(){ |
---|
627 | return radio; |
---|
628 | } |
---|
629 | |
---|
630 | public ReceiveEvent getReceiveEventForTime(int t){ |
---|
631 | int i = receiveEvents.indexOf(new ReceiveEvent(t, null, null, null, 0)); |
---|
632 | if (i == -1) |
---|
633 | return null; |
---|
634 | return receiveEvents.get(i); |
---|
635 | } |
---|
636 | |
---|
637 | public void addReceiveEventForTime(ReceiveEvent re){ |
---|
638 | receiveEvents.add(re); |
---|
639 | } |
---|
640 | public void removeReceiveEventForTime(int t){ |
---|
641 | int i = receiveEvents.indexOf(new ReceiveEvent(t, null, null, null, 0)); |
---|
642 | if (i == -1) |
---|
643 | return; |
---|
644 | receiveEvents.remove(i); |
---|
645 | } |
---|
646 | |
---|
647 | //Petroaca - for the emergency receive events list |
---|
648 | |
---|
649 | public ReceiveEvent getReceiveEventEmergencyForTime(int t){ |
---|
650 | int i = receiveEventsEmergency.indexOf(new ReceiveEvent(t, null, null, null, 0)); |
---|
651 | if (i == -1) |
---|
652 | return null; |
---|
653 | return receiveEventsEmergency.get(i); |
---|
654 | } |
---|
655 | |
---|
656 | public void addReceiveEventEmergencyForTime(ReceiveEvent re){ |
---|
657 | receiveEventsEmergency.add(re); |
---|
658 | } |
---|
659 | public void removeReceiveEventEmergencyForTime(int t){ |
---|
660 | int i = receiveEventsEmergency.indexOf(new ReceiveEvent(t, null, null, null, 0)); |
---|
661 | if (i == -1) |
---|
662 | return; |
---|
663 | receiveEventsEmergency.remove(i); |
---|
664 | } |
---|
665 | } |
---|