Road.h

00001 #ifndef _ROAD_H_
00002 #define _ROAD_H_
00003 
00004 #include "AccCar.h"
00005 #include "mbed.h"
00006 #include "mqtt.h"
00007 
00008 // no need to make it dynamic since we know our max upfront
00009 #define MAX_CARS_ON_ROAD 5
00010 #define MAC_CAR_BITS_ON_ROAD 1 << MAX_CAR_ON_ROAD
00011 
00012 class AccCar;
00013 
00014 class Road {
00015 public:
00016     EventFlags go_flags;
00017     EventFlags done_flags;
00018 
00019     Road( int id , mqtt* mqtt_singleton);
00020     
00021     void add_acc_car(AccCar* car);
00022     
00023     void let_cars_update();
00024     
00025     void wait_for_car_update();
00026     
00027     bool can_car_enter(int speed);
00028     
00029     int get_new_car_id();
00030     
00031     int get_active_cars();
00032     
00033     AccCar* get_car(int id);
00034     
00035     AccCar* get_forward_car(int id);
00036     
00037     void DESTROY_ALL_CARS();
00038     
00039     bool simulating();
00040     
00041     int get_road_id();
00042     
00043     int get_road_clock();
00044         
00045     AccCar* get_last_car();
00046     
00047     int synchronize(int simulating);
00048     
00049     void free_msg();
00050     
00051 private: 
00052     // for sharing intersections
00053     int road_id;
00054     
00055     mqtt* singleton;
00056     
00057     // store our cars here we only need 5
00058     AccCar* car_table[MAX_CARS_ON_ROAD];
00059     
00060     // how many active cars we have 
00061     int active_cars;
00062     
00063     // each car gets its own bit 
00064     int active_car_bits;
00065     
00066     //
00067     int road_clock;
00068     
00069     //
00070     road_msg_t* msg;
00071 };
00072 #endif