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Git Exercise

1. Each person in the pair needs to git clone this repo
2. Decide, who is Person A and who is Person B
3. Tasks will be appearing below. After you complete one, another one appears. There is 10 in total.
4. First 6 tasks are always only for one person (it alternates between A and B)
5. In the remaining tasks, you will work in parallel and might even need to resolve some conflicts.

Tasks

1. Person A - pod.cpp - Name your pod
   • Open pod.cpp file and locate TASK 1
   • Type the name for your pod inside the double-quotes (you should discuss the choice of the name with your teammate)
2. Person B - pod.cpp - Choose max speed
   • Open pod.cpp file and locate TASK 2
   • Tell us what the max speed of your pod is by replacing the 0 in the code with a real number
3. Person A - pod.h and pod.cpp - Tempereture inside the pressure vessel
   • Open pod.h, locate place for TASKS 3&4 and copy-paste the following line there

     double get_temperature();

   • Open pod.cpp, locate place for TASKS 3&4 and copy-paste the following code there (you can change the 0 there if you want a more comfortable temperature)

     double Pod::get_temperature()
     {
       return 0;
     }

   • When done, commit both files in a single commit (ofc don't forget push and stuff as always)
4. Person B - pod.h and pod.cpp - Pressure inside the pressure vessel
   • Open pod.h, locate place for TASKS 3&4 and copy-paste the following line below the one from previous task

     double get_pressure();

   • Open pod.cpp, locate place for TASKS 3&4, copy the following code and paste it below the function from previous task (you can change the 0 there if you want a more comfortable pressure)

     double Pod::get_pressure()
     {
       return 0;
     }

   • When done, commit both files in a single commit (ofc don't forget push and stuff as always)
5. Person A - main.cpp and Makefile - Main executable
   • Create a new file called main.cpp and copy the following code to it

     #include <iostream>
     #include "pod.h"
     
     int main()
     {
       Pod pod;
       std::cout << "Name: " << pod.get_name() << std::endl;
       std::cout << "Maximum speed: " << pod.get_max_speed() << std::endl;
       std::cout << "Temperature: " << pod.get_temperature() << std::endl;
       std::cout << "Pressure: " << pod.get_pressure() << std::endl;
       return 0;
     }

   • Open Makefile, locate place for TASK 4 and uncomment the code there to get something like

     main : main.o pod.o bms.o navigation.o accelerometer.o
         $(CC) $(OBJS) $(LFLAGS) main.o -o main
     
     main.o : main.cpp pod.h bms.h navigation.h accelerometer.h
         $(CC) $(CFLAGS) main.cpp

   • Notice the difference in the output of git status for the newly created file
   • Commit main.cpp and Makefile in separate commits
6. Person B - bms.cpp, bms.h and Makefile - Battery management system
   • Create a new file called bms.h and copy the following code to it

     #ifndef HYPED_GIT_WSHOP_BMS_H
     #define HYPED_GIT_WSHOP_BMS_H
     
     
     class BatteryManagementSystem
     {
       public:
         BatteryManagementSystem();
     
         /// TASKS 9 (BOTH) /////////////////////////////////////////////////////////
         
         /// END OF TASKS 9AB ///////////////////////////////////////////////////////
     };
     
     
     #endif //HYPED_GIT_WSHOP_BMS_H

   • Create a new file called bms.cpp and copy the following code to it

     #include "bms.h"
     
     BatteryManagementSystem::BatteryManagementSystem()
     {
     }
     
     /// TASK 9 (BOTH) //////////////////////////////////////////////////////////////
     
     /// END OF TASKS 9AB ///////////////////////////////////////////////////////////

   • Open Makefile, locate place for TASK 5 and uncomment the code there to get something like

     bms.o : bms.cpp bms.h
         $(CC) $(CFLAGS) bms.cpp

   • Notice the difference in the output of git status for the newly created file
   • Commit bms.h and bms.cpp in one commit and Makefile in separate commits
7. CHANGE: both people work simultaneously on different pieces of code from now on - Person B git pushes first
   • Person A - accelerometer.h - Define accelerometer's error
     • Open accelerometer.h, locate place for TASK 7 and edit the line so that it looks something like below (0 is best but also most boring)

       double error = <real_number_here>;

     • Wait for your teammate to git push before you git pull --rebase
   • Person B - navigation.cpp - Implement way for adding accelerometers to the navigation system
     • Open navigation.cpp, locate the place for TASK 7 and copy the following code there

       this->accelerometers.push_back(a);

8. Person A git pushes first
   • Person A - navigation.cpp - Implement calculation of velocity from acceleration
     • Open navigation.cpp, locate the place for your part of TASK 7 (inside get_velocity() function) and copy the following code there

       double a = this->get_acceleration();
       this->velocity += a*DT; //integrate
       return this->velocity;

   • Person B - navigation.cpp - Implement calculation of position from velocity
     • Open navigation.cpp, locate the place for your part of TASK 7 (inside get_position() function) and copy the following code there

       double v = this->get_velocity();
       this->position += v*DT; //integrate
       return this->position;

     • Wait for your teammate to git push before you git pull --rebase
9. Person B git pushes first
   • Person A - bms.h and bms.cpp - Sensing voltage
     • Open bms.h, locate place for TASK 9 and copy the following code there

       double get_voltage();

     • Open bms.cpp, locate place for TASK 9 and copy the following code there (you can change the number)

       double BatteryManagementSystem::get_voltage()
       {
         return 0;
       }

     • Commit both files in a single commit
     • Wait for your teammate to git push before you git pull --rebase
     • SLOW DOWN You've got a conflict. Now go and carefully resolve it. Take your time.
   • Person B - bms.h and bms.cpp - Sensing current
     • Open bms.h, locate place for TASK 9 and copy the following code there

       double get_current();

     • Open bms.cpp, locate place for TASK 9 and copy the following code there (you can change the number)

       double BatteryManagementSystem::get_current()
       {
         return 0;
       }

10. Person A git pushes first
    • Person A - pod.h and Makefile - Integrate battery management system with the pod
      • Open pod.h, locate TASK 10.1, and include the BMS header by copying the following code

        #include "bms.h"

      • Locate TASK 10.2 and declare the BMS field as follows

        BatteryManagementSystem bms;

      • Open Makefile
        • Append bms.h to the lines starting with pod.o : and main.o :
        • Append bms.o to the lines starting with main : and OBJS =
    • Person B - pod.h, pod.cpp and Makefile - Integrate navigation system with the pod
      • Open pod.h, locate TASK 10.1, and include the navigation header by copying the following code

        #include "navigation.h"

      • Locate TASK 10.2 and declare the nav field as follows

        Navigation nav;

      • Open pod.cpp, locate TASK 10, and initialize the navigation system with one accelerometer as follows

        this->nav.add_accelerometer(new Accelerometer);

      • Open Makefile
        • Append navigation.h to the lines starting with pod.o : and main.o :
        • Append navigation.o to the lines starting with main : and OBJS =
      • Commit both files in a single commit
      • Wait for your teammate to git push before you git pull --rebase
      • SLOW DOWN You've got some conflicts. Now go and carefully resolve them. Take your time.

Summary of tasks

Task #	Person A	Person B
1	Name your pod - edit pod.cpp
2		Max speed - edit pod.cpp
3	Pressure vessel temperature - edit pod.h and pod.cpp
4		Pressure vessel pressure - edit pod.h and pod.cpp
5	Create main.cpp and update Makefile
6		BMS - create bms.cpp and bms.h and update Makefile
7	Accelerometer error - edit accelerometer.h git pull --rebase	Edit navigation.cpp - adding accelerometers
8	Edit navigation.cpp - get velocity	Edit navigation.cpp - get position git pull -- rebase
9	Edit bms.h and bms.cpp - get voltage git pull --rebase & resolve conflicts	Edit bms.h and bms.cpp - get current
10	Integrate BMS to pod - edit pod.h and Makefile	Integrate navigation to pod - edit pod.h, pod.cpp and Makefile git pull --rebase & resolve conflicts