⭕ Tic-Tac-Toe
A standard game of Tic-Tac-Toe in Leo.
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Representing State
Leo allows users to define composite data types with the struct
keyword.
The game board is represented by a struct called Board
, which contains three Row
s.
An alternative representation would be to use an array, however, these are not yet supported in Leo.
Language Features
struct
declarations- conditional statements
- early termination. Leo allows users to return from a function early using the
return
keyword.
Running the Program
Leo provides users with a command line interface for compiling and running Leo programs.
Users may either specify input values via the command line or provide an input file in inputs/
.
Providing inputs via the command line.
- Run
leo run <function_name> <input_1> <input_2> ...
See ./run.sh
for an example.
Using an input file.
- Modify
inputs/tictactoe.in
with the desired inputs. - Run
leo run <function_name>
Executing the Program
leo execute <function_name> <input_1> <input_2> ...
Playing the Game
1. Create a new game board
leo run new
0 | 0 | 0 |
0 | 0 | 0 |
0 | 0 | 0 |
2. Player 1 makes a move
leo run make_move 1u8 1u8 1u8 "{ r1: { c1: 0u8, c2: 0u8, c3: 0u8 }, r2: { c1: 0u8, c2: 0u8, c3: 0u8 }, r3: { c1: 0u8, c2: 0u8, c3: 0u8 } }"
1 | 0 | 0 |
0 | 0 | 0 |
0 | 0 | 0 |
3. Player 2 makes a move
leo run make_move 2u8 2u8 2u8 "{ r1: { c1: 1u8, c2: 0u8, c3: 0u8 }, r2: { c1: 0u8, c2: 0u8, c3: 0u8 }, r3: { c1: 0u8, c2: 0u8, c3: 0u8 } }"
1 | 0 | 0 |
0 | 2 | 0 |
0 | 0 | 0 |