Write a C program to implement the game connect-n. Connect-n is like Connect-4 but the size of the board the number of pieces in a row needed to win are user parameters. If you have never played Connect-4 before you can play it here: https://www.mathsisfun.com/games/connect4.html. The basic gist of the game is that each player takes a turn dropping one of their pieces into a column. Pieces land on top of pieces already played in that column. Each player is trying to get n pieces in a row either vertically, horizontally, or diagonally. The game ends if either player gets n pieces in a row or the board becomes full.

all files necessary to create an executable named connectn.out, a Makefile to compile those files

Additional Details

• Your program should accept 3 command line parameters:
  • The number of rows on the board
  • The number of columns on the board
  • The number of pieces in a row needed to win
    • It is ok if the number of pieces in a row is larger than what can fit on a board
    • For example, on a 3 X 3 board, it is ok for the number of pieces in a row needed to win to be 100
• If the user does not enter enough arguments, too many arguments or invalid values your program should show the user how to call your program and then terminate
  • You may find an exit here
• Player 1's pieces are represented by X
• Player 2's pieces are represented by O
  • Capital Oh, not zero
• Player 1 always plays first
• If the user enters an invalid play your program should continue to ask them for input until valid input is entered
• After the game is over a winner should be declared if there is one and if there is no winner a tie should be declared
• You must split your code into at least 2 different .c files
  • I personally had 4
• You must submit a Makefile that will compile your program
  • The executable created by this Makefile should be named connectn.out

Assumptions

• Input will not always be valid
  • If invalid input is entered on the command line your program should show the user how to use the program and then quit
  • If invalid input is entered when the program is running your program should continue to ask for input until valid input is entered

Valid Input

• Number of rows
  • An integer greater than 0
• Number of columns
  • An integer greater than 0
• Number of pieces in a row needed to win
  • An integer greater than 0
• User Move
  • An integer specifying a column between 0 and the number of columns - 1 that is not already full

Requirements

• The program must compile with both -Wall and -Werror options enabled
• Submit only the files requested
• Use doubles to store real numbers
• Print all doubles to 2 decimal points unless stated otherwise
• NEW: Your submission must consist of at least two .c files and one .h file

Restrictions

• No global variables may be used
• Your main function may only declare variables and call other functions

Hints

• This is our first large program. It took me about 300 lines of code to complete it
  • You will want to break your problem down into logical steps before beginning on it.
  • Each of these steps will become a function
  • Each of these steps might have steps within them so you should create functions here as well to help break down the problem even farther
  • Once you get to a small enough step go ahead and solve it
• Here are some of the functions I had in my program
  • read_args
  • create_board, print_board, destroy_board
  • play_game, get_play, play_is_valid
  • game_over, game_won, row_win, col_win, diag_win, right_diag_win, left_diag_win

Examples

User input has been bolded to help you differentiate between what the user is entering and what the program is ouputting.

Example 1

./connectn.out Not enough arguments entered Usage connectn.out num_rows num_columns number_of_pieces_in_a_row_needed_to_win

Example 2

./connectn.out 1 2 3 4 5 Too many arguments entered Usage connectn.out num_rows num_columns number_of_pieces_in_a_row_needed_to_win

Example 3

./connectn.out 3 3 3 2 * * * 1 * * * 0 * * * 0 1 2 Enter a column between 0 and 2 to play in: 0 2 * * * 1 * * * 0 X * * 0 1 2 Enter a column between 0 and 2 to play in: 1 2 * * * 1 * * * 0 X O * 0 1 2 Enter a column between 0 and 2 to play in: 0 2 * * * 1 X * * 0 X O * 0 1 2 Enter a column between 0 and 2 to play in: 0 2 O * * 1 X * * 0 X O * 0 1 2 Enter a column between 0 and 2 to play in: 0 Enter a column between 0 and 2 to play in: 0 Enter a column between 0 and 2 to play in: -2 Enter a column between 0 and 2 to play in: 4 Enter a column between 0 and 2 to play in: 1 2 O * * 1 X X * 0 X O * 0 1 2 Enter a column between 0 and 2 to play in: 2 2 O * * 1 X X * 0 X O O 0 1 2 Enter a column between 0 and 2 to play in: 2 2 O * * 1 X X X 0 X O O 0 1 2 Player 1 Won!

Example 4

./connectn.out 1 2 3 0 * * 0 1 Enter a column between 0 and 1 to play in: 0 0 X * 0 1 Enter a column between 0 and 1 to play in: 1 0 X O 0 1 Tie game!