fix: check the whole board to check a win

src/main.rs

@@ -99,15 +99,15 @@ impl Board {
         }
     }
 
-    fn check_first_line(&self, item: Item) -> bool {
+    fn check_first_row(&self, item: Item) -> bool {
         self.items[0] == item && self.items[1] == item && self.items[2] == item
     }
 
-    fn check_second_line(&self, item: Item) -> bool {
+    fn check_second_row(&self, item: Item) -> bool {
         self.items[3] == item && self.items[4] == item && self.items[5] == item
     }
 
-    fn check_last_line(&self, item: Item) -> bool {
+    fn check_last_row(&self, item: Item) -> bool {
         self.items[6] == item && self.items[7] == item && self.items[8] == item
     }
 
@@ -131,42 +131,16 @@ impl Board {
         self.items[2] == item && self.items[4] == item && self.items[6] == item
     }
 
-    /// instead of scanning all the board, checks input "win" combinaison
-    fn check_win(&self, player: Player, idx: usize) -> bool {
+    fn check_win(&self, player: Player) -> bool {
         let item = player.item;
-        match idx {
-            0 => {
-                self.check_first_col(item)
-                    || self.check_first_line(item)
-                    || self.check_first_diag(item)
-            }
-            1 => self.check_first_line(item) || self.check_second_col(item),
-            2 => {
-                self.check_first_line(item)
-                    || self.check_last_col(item)
-                    || self.check_last_diag(item)
-            }
-            3 => self.check_first_col(item) || self.check_second_line(item),
-            4 => {
-                self.check_second_col(item)
-                    || self.check_second_line(item)
-                    || self.check_last_diag(item)
-                    || self.check_first_diag(item)
-            }
-            5 => self.check_last_col(item) || self.check_second_line(item),
-            6 => {
-                self.check_first_col(item)
-                    || self.check_last_line(item)
-                    || self.check_last_diag(item)
-            }
-            7 => self.check_last_line(item) || self.check_second_col(item),
-            8 => {
-                self.check_last_line(item)
-                    || self.check_last_col(item)
-                    || self.check_first_diag(item)
-            }
-            _ => false,
-        }
+        return self.check_first_col(item)
+            || self.check_second_col(item)
+            || self.check_last_col(item)
+            || self.check_first_row(item)
+            || self.check_second_row(item)
+            || self.check_last_row(item)
+            || self.check_first_diag(item)
+            || self.check_last_diag(item);
     }
 }
 
@@ -439,12 +413,10 @@ impl TicTacToe {
             }
 
             let item_icon: String = player.item.into();
-            let mut item_position;
 
             loop {
                 match self.select_player_item() {
                     Ok(pos) => {
-                        item_position = pos;
                         match self.board.set_item(player.item, pos) {
                             Ok(_) => break,
                             Err(e) => {
@@ -459,7 +431,7 @@ impl TicTacToe {
             }
 
             // check after the 5th round if there's a winner
-            if self.turn > 4 && self.board.check_win(player, item_position - 1) {
+            if self.turn > 4 && self.board.check_win(player) {
                 info(format!("{} wins!", item_icon));
                 self.board.show();
                 break;