This is a starter repo for 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.

In this project, I extend this Snake game to the following directions:

1. add obstacles (shown as grey rectangles) to the map
2. add another snake which follows the path (shown as green grids) calculated from A* algorithm.
3. allow user to enter their names before playing game
4. log user's score in a file named users_info.txt located in build folder.

The above is a short video to illustrate the extended game.

The most time-consuming part when I implemented the extensions is to determine the direction for each move according to the path from A* algorithm. The moving speed is not accurate 0.1 so this cause some trouble to predict the accurate position after each move. Through careful observations, I realize we can use static_cast<int>(head_x/y) instead of head_x/y because we only care about the head's integer position in rendering and determining whether it arrives at the food. So I use static_cast<int>(head_x/y) to infer the moving direction and determine whether we should pop out the previous goal (last grid in path) dynamically.

• README
• Compiling and Testing
• Loops, Functions, I/O [link]
• Object Oriented Programming [link]

• 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.

• 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

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.

Shield:

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.