In today’s lab, we will be implementing a board class to play a game of tic tac toe. We will also continue to practice with I/O manipulation and stringstreams.
Lab Objectives
- C++ File I/O + Manipulators
- Writing a Board class
- Object oriented programming
- Using stringstreams to quickly build formatted strings
Lab Instructions
Create 3 files, main.cpp, makefile, and board.cpp. Your program does not need command line arguments, but will take in user input via std::cin. You may not use printf or scanf in your program.
Sample Output
Before we go any further, here is the expected output for a default gameboard:
Board Class
You will be provided with the board.hpp file. In C++ your header files can be .h or .hpp. Using the .hpp allows a way to distinguish between C++ and C header files. You must create a board.cpp file and implement all the functions defined in board.hpp. You may create more functions; however, you shouldn’t need to.
The print function should use a stringstream to build and return a string that you’ll print to the terminal in the main(). See sample output above.
Assumptions you can make:
- Your program does not need to check if there is already a game piece in a given position. Assume we will not test this.
- Your program does need to check if we are entering a number between 1 and 9.
- Your program does need to match my formatting.
Sample input and output:
What to turn in
main.cpp, board.cpp, board.hpp, makefile
SOME HINTS!
- You can populate the 2D string array using an iterator and the std::to_string() function.
- Tackle this one function at a time. I recommend starting with the constructor and print() functions.
- You should not need to allocate any memory.
- Draw out every way you can win in tic tac toe and think about how can I program this without brute force checking each win.
- You need to iterate through the vector to get the player. I’d recommend checking if the iterator you use is greater than 1. If it is, reset it to 0.
- When you place a token into the gameboard, do not forget to increment the total number of turns!
- Make sure you test each way a player may win and for a draw.
Compile and Execute
Use g++ to compile your code as follows and include the C++11 standard!:
g++ -std=c++11 -Wall -g main.cpp board.cpp -o game
Execute the program
./game
FORMATTING: // Sample Header
- Your program should be well documented /*******************
- Each file should include a header: your name
- Your program should consist of proper and username consistent indention Lab 1
Lab Section:
- No lines of code should be more than 80 Name of TA
characters *******************/
5 – 10 points will be deducted for each of the above formatting infractions.
