SUMO - Simulation of Urban MObility
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MSTrafficLightLogic.cpp
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1 /****************************************************************************/
9 // The parent class for traffic light logics
10 /****************************************************************************/
11 // SUMO, Simulation of Urban MObility; see http://sumo-sim.org/
12 // Copyright (C) 2001-2013 DLR (http://www.dlr.de/) and contributors
13 /****************************************************************************/
14 //
15 // This file is part of SUMO.
16 // SUMO is free software: you can redistribute it and/or modify
17 // it under the terms of the GNU General Public License as published by
18 // the Free Software Foundation, either version 3 of the License, or
19 // (at your option) any later version.
20 //
21 /****************************************************************************/
22 
23 
24 // ===========================================================================
25 // included modules
26 // ===========================================================================
27 #ifdef _MSC_VER
28 #include <windows_config.h>
29 #else
30 #include <config.h>
31 #endif
32 
33 #include <cassert>
34 #include <string>
35 #include <iostream>
36 #include <map>
37 #include <microsim/MSLink.h>
38 #include <microsim/MSLane.h>
39 #include "MSTrafficLightLogic.h"
41 #include "MSTLLogicControl.h"
43 
44 #ifdef CHECK_MEMORY_LEAKS
45 #include <foreign/nvwa/debug_new.h>
46 #endif // CHECK_MEMORY_LEAKS
47 
48 
49 // ===========================================================================
50 // member method definitions
51 // ===========================================================================
52 /* -------------------------------------------------------------------------
53  * member method definitions
54  * ----------------------------------------------------------------------- */
56  MSTrafficLightLogic* tlLogic, SUMOTime nextSwitch)
57  : myTLControl(tlcontrol), myTLLogic(tlLogic),
58  myAssumedNextSwitch(nextSwitch), myAmValid(true) {}
59 
60 
62 
63 
64 
67  // check whether this command has been descheduled
68  if (!myAmValid) {
69  return 0;
70  }
71  //
72  bool isActive = myTLControl.isActive(myTLLogic);
73  size_t step1 = myTLLogic->getCurrentPhaseIndex();
74  SUMOTime next = myTLLogic->trySwitch(isActive);
75  size_t step2 = myTLLogic->getCurrentPhaseIndex();
76  if (step1 != step2) {
77  if (isActive) {
78  // execute any action connected to this tls
79  const MSTLLogicControl::TLSLogicVariants& vars = myTLControl.get(myTLLogic->getID());
80  // set link priorities
81  myTLLogic->setTrafficLightSignals(t);
82  // execute switch actions
84  }
85  }
86  myAssumedNextSwitch += next;
87  return next;
88 }
89 
90 
91 void
93  if (tlLogic == myTLLogic) {
94  myAmValid = false;
95  myAssumedNextSwitch = -1;
96  }
97 }
98 
99 
100 /* -------------------------------------------------------------------------
101  * member method definitions
102  * ----------------------------------------------------------------------- */
104  const std::string& programID, SUMOTime delay, const std::map<std::string, std::string>& parameters) :
105  Named(id), Parameterised(parameters),
106  myProgramID(programID),
108  myDefaultCycleTime(0) {
109  mySwitchCommand = new SwitchCommand(tlcontrol, this, delay);
112 }
113 
114 
115 void
117 }
118 
119 
121  // no need to do something about mySwitchCommand here,
122  // it is handled by the event control
123 }
124 
125 
126 // ----------- Handling of controlled links
127 void
128 MSTrafficLightLogic::addLink(MSLink* link, MSLane* lane, unsigned int pos) {
129  // !!! should be done within the loader (checking necessary)
130  myLinks.reserve(pos + 1);
131  while (myLinks.size() <= pos) {
132  myLinks.push_back(LinkVector());
133  }
134  myLinks[pos].push_back(link);
135  //
136  myLanes.reserve(pos + 1);
137  while (myLanes.size() <= pos) {
138  myLanes.push_back(LaneVector());
139  }
140  myLanes[pos].push_back(lane);
141  link->setTLState((LinkState) getCurrentPhaseDef().getState()[pos], MSNet::getInstance()->getCurrentTimeStep());
142 }
143 
144 
145 void
147  myLinks = logic.myLinks;
148  myLanes = logic.myLanes;
149 }
150 
151 
152 std::map<MSLink*, LinkState>
154  std::map<MSLink*, LinkState> ret;
155  for (LinkVectorVector::const_iterator i1 = myLinks.begin(); i1 != myLinks.end(); ++i1) {
156  const LinkVector& l = (*i1);
157  for (LinkVector::const_iterator i2 = l.begin(); i2 != l.end(); ++i2) {
158  ret[*i2] = (*i2)->getState();
159  }
160  }
161  return ret;
162 }
163 
164 
165 bool
167  // get the current traffic light signal combination
168  const std::string& state = getCurrentPhaseDef().getState();
169  // go through the links
170  for (size_t i = 0; i < myLinks.size(); i++) {
171  const LinkVector& currGroup = myLinks[i];
172  LinkState ls = (LinkState) state[i];
173  for (LinkVector::const_iterator j = currGroup.begin(); j != currGroup.end(); j++) {
174  (*j)->setTLState(ls, t);
175  }
176  }
177  return true;
178 }
179 
180 
181 void
182 MSTrafficLightLogic::resetLinkStates(const std::map<MSLink*, LinkState>& vals) const {
183  for (LinkVectorVector::const_iterator i1 = myLinks.begin(); i1 != myLinks.end(); ++i1) {
184  const LinkVector& l = (*i1);
185  for (LinkVector::const_iterator i2 = l.begin(); i2 != l.end(); ++i2) {
186  assert(vals.find(*i2) != vals.end());
187  (*i2)->setTLState(vals.find(*i2)->second, MSNet::getInstance()->getCurrentTimeStep());
188  }
189  }
190 }
191 
192 
193 // ----------- Static Information Retrieval
194 int
195 MSTrafficLightLogic::getLinkIndex(const MSLink* const link) const {
196  int index = 0;
197  for (LinkVectorVector::const_iterator i1 = myLinks.begin(); i1 != myLinks.end(); ++i1, ++index) {
198  const LinkVector& l = (*i1);
199  for (LinkVector::const_iterator i2 = l.begin(); i2 != l.end(); ++i2) {
200  if ((*i2) == link) {
201  return index;
202  }
203  }
204  }
205  return -1;
206 }
207 
208 
209 
210 // ----------- Dynamic Information Retrieval
211 SUMOTime
213  return mySwitchCommand != 0 ? mySwitchCommand->getNextSwitchTime() : -1;
214 }
215 
216 
217 // ----------- Changing phases and phase durations
218 void
220  myOverridingTimes.push_back(duration);
221 }
222 
223 
224 void
227 }
228 
229 
230 /****************************************************************************/
231