diff options
Diffstat (limited to 'examples/tictactoe.rs')
| -rw-r--r-- | examples/tictactoe.rs | 178 |
1 files changed, 93 insertions, 85 deletions
diff --git a/examples/tictactoe.rs b/examples/tictactoe.rs index 3d25057..49444eb 100644 --- a/examples/tictactoe.rs +++ b/examples/tictactoe.rs @@ -1,90 +1,98 @@ -#[macro_use]extern crate prettytable;
-use prettytable::Table;
-
-use std::io;
-use std::io::Write;
-use std::str::FromStr;
-
-const CROSS: &'static str = "X";
-const EMPTY: &'static str = " ";
-const ROUND: &'static str = "O";
-
-fn main() {
- let mut table = table![[EMPTY, EMPTY, EMPTY], [EMPTY, EMPTY, EMPTY], [EMPTY, EMPTY, EMPTY]];
- table.printstd();
- let stdin = io::stdin();
- let mut stdout = io::stdout();
- let mut current = CROSS;
- loop {
- let mut line = String::new();
- print!("{} plays > ", current);
- stdout.flush().unwrap();
- stdin.read_line(&mut line).expect("Cannot read input");
+#[macro_use] +extern crate prettytable; +use prettytable::Table; + +use std::io; +use std::io::Write; +use std::str::FromStr; + +const CROSS: &'static str = "X"; +const EMPTY: &'static str = " "; +const ROUND: &'static str = "O"; + +fn main() { + let mut table = table![[EMPTY, EMPTY, EMPTY], + [EMPTY, EMPTY, EMPTY], + [EMPTY, EMPTY, EMPTY]]; + table.printstd(); + let stdin = io::stdin(); + let mut stdout = io::stdout(); + let mut current = CROSS; + loop { + let mut line = String::new(); + print!("{} plays > ", current); + stdout.flush().unwrap(); + stdin.read_line(&mut line).expect("Cannot read input"); let i = match usize::from_str(line.trim()) {
Ok(i) => i,
- _ => {
- println!("Bad input");
- continue;
+ _ => { + println!("Bad input"); + continue; }
- };
- if i < 1 || i > 9 {
- println!("Bad input, should be between 1 and 9");
- continue;
- }
- let x = (i-1)%3;
- let y = (i-1)/3;
- {
- let mut row = table.get_mut_row(y).unwrap();
- if row.get_cell(x).unwrap().to_string() != EMPTY {
- println!("There's already someone there");
- continue;
- }
- row.set_cell(cell!(current), x).unwrap();
- }
- table.printstd();
- if check(&table) {
- return
- }
- if current == CROSS {
- current = ROUND;
- } else {
- current = CROSS;
- }
- }
-}
-
-fn get(table: &Table, x: usize, y: usize) -> String {
+ }; + if i < 1 || i > 9 { + println!("Bad input, should be between 1 and 9"); + continue; + } + let x = (i - 1) % 3; + let y = (i - 1) / 3; + { + let mut row = table.get_mut_row(y).unwrap(); + if row.get_cell(x).unwrap().to_string() != EMPTY { + println!("There's already someone there"); + continue; + } + row.set_cell(cell!(current), x).unwrap(); + } + table.printstd(); + if check(&table) { + return; + } + if current == CROSS { + current = ROUND; + } else { + current = CROSS; + } + } +} + +fn get(table: &Table, x: usize, y: usize) -> String { match table.get_row(y) {
- Some(ref r) => match r.get_cell(x){
- Some(ref c) => c.to_string(),
- _ => EMPTY.to_string()
- },
- _ => EMPTY.to_string()
- }
-}
-
-fn is(table: &Table, s : &str, x: usize, y: usize) -> bool {
- get(table, x, y).as_str() == s
-}
-
-fn check(table: &Table) -> bool {
- let mut full = true;
- for y in 0..3 {
- for x in 0..3 {
- if is(table, EMPTY, x, y) {
- full = false;
- continue;
- }
- let current = get(table, x, y);
- let c = current.as_str();
- if is(table, c, x+1, y) && is(table, c, x+2, y) || is(table, c, x+1, y+1) && is(table, c, x+2, y+2) || x >= 2 && is(table, c, x-1, y+1) && is(table, c, x-2, y+2) || is(table, c, x, y+1) && is(table, c, x, y+2) {
- println!("Game is over. {} is the winner", current);
- return true;
- }
+ Some(ref r) => { + match r.get_cell(x) {
+ Some(ref c) => c.to_string(),
+ _ => EMPTY.to_string(),
+ } }
- }
- if full {
- println!("Game is over. It's a draw");
- }
- return full;
-}
+ _ => EMPTY.to_string(),
+ } +} + +fn is(table: &Table, s: &str, x: usize, y: usize) -> bool { + get(table, x, y).as_str() == s +} + +fn check(table: &Table) -> bool { + let mut full = true; + for y in 0..3 { + for x in 0..3 { + if is(table, EMPTY, x, y) { + full = false; + continue; + } + let current = get(table, x, y); + let c = current.as_str(); + if is(table, c, x + 1, y) && is(table, c, x + 2, y) || + is(table, c, x + 1, y + 1) && is(table, c, x + 2, y + 2) || + x >= 2 && is(table, c, x - 1, y + 1) && is(table, c, x - 2, y + 2) || + is(table, c, x, y + 1) && is(table, c, x, y + 2) { + println!("Game is over. {} is the winner", current); + return true; + } + } + } + if full { + println!("Game is over. It's a draw"); + } + return full; +} |