The program can be run using zig build run.
Tests can be run using zig test ./src/main.zig.
Code coverage can be measured using kcov.
When you start the program, a game will look like this:
☓ Tic Tac Toe ◯
0 1 2
3 4 5
6 7 8
☓, it's your turn.
Remaining spots: 0 1 2 3 4 5 6 7 8
☓ 0
☓ Tic Tac Toe ◯
☓ 1 2
3 4 5
6 7 8
Moves: ☓0
◯, it's your turn.
Remaining spots: 1 2 3 4 5 6 7 8
◯ 3
☓ Tic Tac Toe ◯
☓ 1 2
◯ 4 5
6 7 8
Moves: ☓0 ◯3
☓, it's your turn.
Remaining spots: 1 2 4 5 6 7 8
☓ 4
☓ Tic Tac Toe ◯
☓ 1 2
◯ ☓ 5
6 7 8
Moves: ☓0 ◯3 ☓4
◯, it's your turn.
Remaining spots: 1 2 5 6 7 8
◯ 7
☓ Tic Tac Toe ◯
☓ 1 2
◯ ☓ 5
6 ◯ 8
Moves: ☓0 ◯3 ☓4 ◯7
☓, it's your turn.
Remaining spots: 1 2 5 6 8
☓ 8
☓ Tic Tac Toe ◯
☓ 1 2
◯ ☓ 5
6 ◯ ☓
Moves: ☓0 ◯3 ☓4 ◯7 ☓8
The game's over. ☓ wins!