Fixed snake going into the border

Bugs: I think the food might spawn into the border making the game unplayable.
Fixed: The snake can no longer go inside the border.
Also fixed the bug where pressing a key multiple times could skip the
food while the snake went over it.

src/game/backend.rs

@@ -125,10 +125,10 @@ impl Board {
     }
     pub fn check_collision(&mut self, snake: &Snake) -> bool {
         let (snake_line, snake_col): (i32, i32) = snake.posyx();
-        if (snake_line >= self.maxlines)
-            || (snake_col >= self.maxcols)
-            || (snake_line < 0)
-            || (snake_col < 0)
+        if (snake_line >= self.maxlines - 1)
+            || (snake_col >= self.maxcols - 1)
+            || (snake_line <= 0)
+            || (snake_col <= 0)
         {
             self.gamestate = GameState::Failed(FailState::Wall);
             return true;

src/game/frontend.rs

@@ -1,8 +1,7 @@
 // use ncurses::*;
 use crate::game::backend::{Board, Snake};
 use ncurses::{
-    box_, delwin, keypad, mvwaddstr, newwin, stdscr, waddstr, wborder, wclrtobot, wmove, wrefresh,
-    WINDOW,
+    box_, delwin, keypad, mvwaddstr, newwin, stdscr, wborder, wclrtobot, wmove, wrefresh, WINDOW,
 };
 pub fn game_window(mlines: i32, mcols: i32, vmargin: i32, hmargin: i32) -> WINDOW {
     let game_win: WINDOW;
@@ -46,12 +45,21 @@ pub fn draw_board(board: &Board, game_win: WINDOW) {
     mvwaddstr(game_win, food_l, food_c, "F");
 }
 
-pub fn log(snake: &Snake, board: &Board) {
+pub fn _log(snake: &Snake, board: &Board) {
     let (shl, shc): (i32, i32) = snake.posyx();
     let (bfl, bfc): (i32, i32) = board.food_posyx();
     mvwaddstr(stdscr(), 0, 0, &format!("snake:head: {} {} ", shl, shc));
     mvwaddstr(stdscr(), 1, 0, &format!("board:food: {} {} ", bfl, bfc));
-    wmove(stdscr(), 2, 0);
+    // mvwaddstr(
+    //     stdscr(),
+    //     2,
+    //     0,
+    //     &format!(
+    //         "board:maxlines {} maxcols {}",
+    //         board.maxlines, board.maxcols
+    //     ),
+    // );
+
     // for snake_cell in snake.iter() {
     //     let (scl, scc): (i32, i32) = snake_cell.posyx();
     //     waddstr(stdscr(), &format!("cell: {} {} ", scl, scc));

src/game/mod.rs

@@ -19,7 +19,7 @@ pub fn start() {
     loop {
         frontend::draw_snake(&snake, game_win);
         frontend::draw_board(&board, game_win);
-        frontend::log(&snake, &board);
+        // frontend::_log(&snake, &board);
         if board.check_collision(&snake) {
             break;
         }
@@ -50,9 +50,8 @@ pub fn start() {
                 nodelay(game_win, true);
             }
             // 27 => break,
-            _ => (),
+            _ => snake.tick(std::time::Duration::from_millis(100)),
         }
-        snake.tick(std::time::Duration::from_millis(100));
     }
 
     frontend::destroy_window(game_win);