source/libr2c2/train.h

   1 #ifndef LIBR2C2_TRAIN_H_
   2 #define LIBR2C2_TRAIN_H_
   3
   4 #include <sigc++/signal.h>
   5 #include <sigc++/trackable.h>
   6 #include <msp/datafile/objectloader.h>
   7 #include <msp/time/timedelta.h>
   8 #include "blockallocator.h"
   9 #include "controller.h"
  10 #include "sensor.h"
  11 #include "trainai.h"
  12
  13 namespace R2C2 {
  14
  15 class ArticleNumber;
  16 class Block;
  17 class SpeedQuantizer;
  18 class Vehicle;
  19 class VehicleType;
  20
  21 class Train: public sigc::trackable
  22 {
  23 public:
  24         class Loader: public Msp::DataFile::ObjectLoader<Train>
  25         {
  26         private:
  27                 Block *prev_block;
  28                 bool blocks_valid;
  29
  30         public:
  31                 Loader(Train &);
  32         private:
  33                 virtual void finish();
  34                 void blocks();
  35                 void name(const std::string &);
  36                 void quantized_speed();
  37                 void router();
  38                 void vehicle(ArticleNumber);
  39         };
  40
  41         sigc::signal<void, const std::string &> signal_name_changed;
  42         sigc::signal<void, const std::string &, float> signal_control_changed;
  43         sigc::signal<void, unsigned, bool> signal_function_changed;
  44         sigc::signal<void, TrainAI &, const TrainAI::Message &> signal_ai_event;
  45         sigc::signal<void, Block &> signal_advanced;
  46         sigc::signal<void, unsigned, Vehicle &> signal_vehicle_added;
  47         sigc::signal<void, unsigned, Vehicle &> signal_vehicle_removed;
  48
  49 private:
  50         Layout &layout;
  51         const VehicleType &loco_type;
  52         unsigned address;
  53         std::string protocol;
  54         std::string name;
  55         const Train *preceding_train;
  56         std::vector<Vehicle *> vehicles;
  57         BlockAllocator allocator;
  58         bool advancing;
  59         Controller *controller;
  60         std::list<TrainAI *> ais;
  61         unsigned current_speed_step;
  62         bool speed_changing;
  63         bool reverse;
  64         Msp::Time::TimeDelta stop_timeout;
  65         unsigned functions;
  66
  67         BlockIter last_entry_block;
  68         Msp::Time::TimeDelta travel_time;
  69         bool pure_speed;
  70         SpeedQuantizer *speed_quantizer;
  71         bool accurate_position;
  72         float overshoot_dist;
  73
  74 public:
  75         Train(Layout &, const VehicleType &, unsigned, const std::string &);
  76         ~Train();
  77
  78         Layout &get_layout() const { return layout; }
  79         const VehicleType &get_locomotive_type() const { return loco_type; }
  80         unsigned get_address() const { return address; }
  81         const std::string &get_protocol() const { return protocol; }
  82         void set_name(const std::string &);
  83         const std::string &get_name() const { return name; }
  84         const Train *get_preceding_train() const { return preceding_train; }
  85         Controller &get_controller() const { return *controller; }
  86
  87         void add_vehicle(const VehicleType &);
  88         void remove_vehicle(unsigned);
  89         unsigned get_n_vehicles() const;
  90         Vehicle &get_vehicle(unsigned);
  91         const Vehicle &get_vehicle(unsigned) const;
  92
  93         void set_control(const std::string &, float);
  94         void set_function(unsigned, bool);
  95         float get_control(const std::string &) const;
  96         float get_speed() const;
  97         float get_quantized_speed() const;
  98         unsigned get_speed_step() const { return current_speed_step; }
  99         bool get_function(unsigned) const;
 100         unsigned get_functions() const { return functions; }
 101
 102         void add_ai(TrainAI &);
 103         void remove_ai(TrainAI &);
 104         void ai_message(const TrainAI::Message &);
 105
 106         template<typename T>
 107         T *get_ai_of_type() const
 108         {
 109                 for(std::list<TrainAI *>::const_iterator i=ais.begin(); i!=ais.end(); ++i)
 110                         if(T *ai = dynamic_cast<T *>(*i))
 111                                 return ai;
 112                 return 0;
 113         }
 114
 115         void place(const BlockIter &);
 116         void unplace();
 117         bool is_placed() const { return !allocator.empty(); }
 118         void stop_at(Block *);
 119         bool is_block_critical(const Block &) const;
 120         BlockIter get_first_noncritical_block() const;
 121         void refresh_blocks_from(Block &);
 122         const BlockAllocator &get_block_allocator() const { return allocator; }
 123         float get_reserved_distance() const;
 124
 125         void tick(const Msp::Time::TimeDelta &);
 126
 127         void save(std::list<Msp::DataFile::Statement> &) const;
 128 private:
 129         void control_changed(const Controller::Control &);
 130         void loco_speed_event(unsigned, unsigned, bool);
 131         void loco_func_event(unsigned, unsigned, bool);
 132         void sensor_state_changed(Sensor &, Sensor::State);
 133         void halt_event(bool);
 134         void block_reserved(const Block &, const Train *);
 135         float get_reserved_distance_until(const Block *) const;
 136 };
 137
 138 } // namespace R2C2
 139
 140 #endif