Initial commit I think

Initial commit with just menu and sort of pause menu only

src/game/backend.rs

@@ -0,0 +1,53 @@
+extern crate rand;
+enum CellType {
+    Snake,
+    Food,
+    Empty,
+}
+struct Cell {
+    line: i32,
+    col: i32,
+    ctype: CellType,
+}
+
+impl Default for Cell {
+    fn default() -> Self {
+        Self {
+            line: -1,
+            col: -1,
+            ctype: CellType::Empty,
+        }
+    }
+}
+
+enum Direction {
+    Up,
+    Down,
+    Left,
+    Right,
+}
+struct Snake {
+    length: i32,
+}
+
+struct SnakeCell {
+    pub line: i32,
+    pub col: i32,
+}
+
+impl SnakeCell {
+    fn next(&self, direction: Direction) -> SnakeCell {
+        let (dl, dc) = match direction {
+            Direction::Up => (-1, 0),
+            Direction::Down => (1, 0),
+            Direction::Left => (0, -1),
+            Direction::Right => (0, 1),
+        };
+
+        SnakeCell {
+            line: self.line + dl,
+            col: self.col + dc,
+            // ctype: self.ctype,
+        }
+    }
+}

src/game/frontend.rs

@@ -0,0 +1,26 @@
+// use ncurses::*;
+use ncurses::{box_, delwin, keypad, newwin, wborder, wrefresh, WINDOW};
+pub fn game_window(mlines: i32, mcols: i32, vmargin: i32, hmargin: i32) -> WINDOW {
+    let game_win: WINDOW;
+    let (lines, cols): (i32, i32);
+    let (starty, startx): (i32, i32);
+    lines = mlines - vmargin * 2;
+    cols = mcols - hmargin * 2;
+    // starty = (mlines - lines) / 2;
+    // startx = (mcols - cols) / 2;
+    starty = vmargin;
+    startx = hmargin;
+    game_win = newwin(lines, cols, starty, startx);
+    box_(game_win, 0, 0);
+    keypad(game_win, true);
+    wrefresh(game_win);
+    game_win
+}
+
+pub fn destroy_window(win: WINDOW) {
+    // wmove(win, 0, 0);
+    // wclrtobot(win);
+    wborder(win, 32, 32, 32, 32, 32, 32, 32, 32); // 32 is the ascii code for whitespace. this replaces all the window borders with whitespace
+    wrefresh(win); // refresh to remove the borders
+    delwin(win); // delete the window
+}

src/game/mod.rs

@@ -0,0 +1,37 @@
+mod backend;
+mod frontend;
+use crate::menu;
+// use ncurses::*;
+use ncurses::{getmaxyx, stdscr, wgetch, wrefresh, KEY_DOWN, KEY_LEFT, KEY_RIGHT, KEY_UP, WINDOW};
+use std::thread::sleep;
+pub fn start() {
+    let (mut mlines, mut mcols): (i32, i32) = (0, 0);
+    let game_win: WINDOW;
+    let mut ch: i32;
+    // let mut choice: i8;
+    getmaxyx(stdscr(), &mut mlines, &mut mcols);
+    game_win = frontend::game_window(mlines, mcols, 5, 10);
+    loop {
+        ch = wgetch(game_win);
+        match ch {
+            KEY_UP => (),
+            KEY_DOWN => (),
+            KEY_LEFT => (),
+            KEY_RIGHT => (),
+            112 => {
+                match menu::pause_menu_control() {
+                    //112 is keycode for 'p'
+                    0 => (),    //resume
+                    1 => (),    //restart
+                    2 => break, //exit
+                    _ => (),    //other charachters just in case
+                }
+                wrefresh(game_win);
+            }
+            27 => break,
+            _ => (),
+        }
+        sleep(std::time::Duration::new(0, 10));
+    }
+    frontend::destroy_window(game_win);
+}