CPPND: Capstone Snake Game Project

This is the Capstone project in the Udacity C++ Nanodegree Program. The code for this repo was inspired by this excellent StackOverflow post and set of responses.

As we can see in the GIF below, the core of the game is kept as is.

Improvements Made:

• Added Bonus Food (in green) that appears after eating 5 normal fruits for 10 seconds and increases the score without affecting the snake length.

  

• Added Menu to the game screen

  

• Added Leader Board of Top 5 records

  

• Score is shown after the game is over

  

• New Score is logged in the Leader board

  

Dependencies for Running Locally

• cmake >= 3.7
  • All OSes: click here for installation instructions
• make >= 4.1 (Linux, Mac), 3.81 (Windows)
  • Linux: make is installed by default on most Linux distros
  • Mac: install Xcode command line tools to get make
  • Windows: Click here for installation instructions
• SDL2 >= 2.0
  • All installation instructions can be found here

  Note that for Linux, an apt or apt-get installation is preferred to building from source.

• SDL2_ttf >= 2.0
  • All installation instructions can be found here

  Note that for Linux, an apt or apt-get installation is preferred to building from source. Typical installation command for APT package manager is sudo apt-get install libsdl2-ttf-dev

• gcc/g++ >= 5.4
  • Linux: gcc / g++ is installed by default on most Linux distros
  • Mac: same deal as make - install Xcode command line tools
  • Windows: recommend using MinGW

Basic Build Instructions

1. Clone this repo.
2. Make a build directory in the top level directory: mkdir build && cd build
3. Compile: cmake .. && make
4. Run it: ./SnakeGame.

Rubrics

Loops, Functions, I/O (2 Required)

• C++ functions and control structures
  • Functions and control structures can be found everywhere in the project.
• File Manipulation.
  • File manipulations can be found in LeaderBoard.c where the LeaderBoard.txt file is read from and written to.
• The project uses data structures and immutable variables.
  • Game has been restructured to be more SOLID which introduces new mutable and immutable structures for example in IScreen.h as well as util.h and util.cpp files.

Object Oriented Programming (3 required)

• One or more classes are added to the project with appropriate access specifiers for class members.

  • see ScreenManager.h, LeaderBoard.h, util.h, IScreen.h, WelcomeScreen.h

• Class constructors utilize member initialization lists.

  • see ScreenManager.cpp, LeaderBoard.cpp, util.cpp, WelcomeScreen.cpp

• Classes abstract implementation details from their interfaces.

  • see ScreenManager.h & ScreenManager.cpp as an example

• Overloaded functions allow the same function to operate on different parameters.

  • see Renderer::Render() in renderer.cpp line 54 & 63

• Classes follow an appropriate inheritance hierarchy with virtual and override functions.

  • See ScreenManager.h, GameScreen.h and IScreen.h

• Templates generalize functions or classes in the project.

  • See IScreen.h, ScreenManager.h, GameScreen.h and renderer.h

Memory Management (3 Required)

• The project makes use of references in function declarations.
  • See ScreenManager.h function ScreenManager::Start().
• The project uses destructors appropriately.
  • See Controller::~Controller() in Controller.cpp.
• The project uses scope / Resource Acquisition Is Initialization (RAII) where appropriate.
  • see ScreenManager.cpp, LeaderBoard.cpp, util.cpp, WelcomeScreen.cpp member variable initialization and constructor overloads of ScreenItem class in util.h.
• The project uses move semantics to move data instead of copying it, where possible.
  • See MessageBox.h.
• The project uses smart pointers instead of raw pointers.
  • See _keyStrokes MessageBox pinter in controller.h.

Concurrency (2 required)

• The project uses multithreading.
  • See controller.h, controller.cpp & GameScreen.cpp
• A mutex or lock is used in the project.
  • see ScreenManager.cpp, LeaderBoard.cpp, util.cpp, GameScreen.cpp & WelcomeScreen.cpp
• A condition variable is used in the project.
  • see MessageBox.h & GameScreen.cpp

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