Impl simple main menu

1 files changed, 83 insertions, 14 deletions

diff --git a/src/main.rs b/src/main.rs
index 0ebd6ae..00f4583 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -2,6 +2,7 @@ extern crate termios;
 
 use nonblock::NonBlockingReader;
 use rand::seq::SliceRandom;
+use std::io::Write;
 
 const FIELD_COLS: usize = 10;
 const FIELD_ROWS_VISIBLE: usize = 20;
@@ -264,20 +265,13 @@ impl Default for Bag {
     }
 }
 
-enum Parameter {
-    Bool(bool),
-    Int(i32),
-}
-
 enum MenuAction {
     Run,
     Quit,
 }
 
 enum MenuContent {
-    Menu(Vec<Menu>),
     Action(MenuAction),
-    Parameter(Parameter),
 }
 
 struct Menu {
@@ -293,6 +287,7 @@ enum GameState {
 struct Game {
     state: GameState,
     menu: Vec<Menu>,
+    menu_selected: usize,
     field: Field,
     figure: Figure,
     x: isize,
@@ -329,6 +324,7 @@ impl Default for Game {
         Self {
             state: GameState::Menu,
             menu,
+            menu_selected: 0,
             field: Field::default(),
             figure,
             x: 3,
@@ -343,6 +339,23 @@ impl Default for Game {
 }
 
 impl Game {
+    fn start_game(&mut self) {
+        self.bag = Bag::default();
+        self.figure_on_hold = Figure::from_kind(self.bag.next());
+        self.figure = Figure::from_kind(self.bag.next());
+        self.figure_next = [
+            Figure::from_kind(self.bag.next()),
+            Figure::from_kind(self.bag.next()),
+            Figure::from_kind(self.bag.next()),
+            Figure::from_kind(self.bag.next()),
+        ];
+        self.field = Field::default();
+        self.state = GameState::InGame;
+        (self.x, self.y) = (3, 17);
+        self.fall_timeout = Timeout::from_duration(std::time::Duration::from_millis(500));
+        self.place_timeout = None;
+    }
+
     fn place_figure(&mut self) {
         self.field.render(&self.figure, self.x, self.y);
         self.figure = self.figure_next[0].clone();
@@ -387,7 +400,7 @@ impl Game {
         }
     }
 
-    fn handle_input(&mut self, c: char) -> Option<StepResult> {
+    fn handle_input_ingame(&mut self, c: char) -> Option<StepResult> {
         match c {
             'q' => return Some(StepResult::Quit),
             ' ' => {
@@ -427,7 +440,7 @@ impl Game {
                 self.reset_fall_timeout();
                 self.stop_place_timeout();
             }
-            _ => {}
+            _ => return None,
         }
         self.reset_place_timeout();
         Some(StepResult::StateChanged)
@@ -449,7 +462,7 @@ impl Game {
 
     fn step_game(&mut self, c_optional: Option<char>) -> Option<StepResult> {
         let handle_input_result = if let Some(c) = c_optional {
-            self.handle_input(c)
+            self.handle_input_ingame(c)
         } else {
             None
         };
@@ -473,10 +486,46 @@ impl Game {
         }
     }
 
+    fn handle_input_menu(&mut self, c: char) -> Option<StepResult> {
+        match c {
+            'q' => return Some(StepResult::Quit),
+            'k' => {
+                if self.menu_selected < self.menu.len() {
+                    self.menu_selected += 1;
+                    Some(StepResult::StateChanged)
+                } else {
+                    None
+                }
+            }
+            'i' => {
+                if self.menu_selected > 0 {
+                    self.menu_selected -= 1;
+                    Some(StepResult::StateChanged)
+                } else {
+                    None
+                }
+            }
+            'l' | ' ' => {
+                match &self.menu[self.menu_selected].content {
+                    MenuContent::Action(action) => match action {
+                        MenuAction::Run => {
+                            self.start_game();
+                            Some(StepResult::StateChanged)
+                        },
+                        MenuAction::Quit => Some(StepResult::Quit),
+                    },
+                }
+            }
+            _ => None,
+        }
+    }
+
     fn step_menu(&mut self, c_optional: Option<char>) -> Option<StepResult> {
-        // TODO
-        self.state = GameState::InGame;
-        None
+        if let Some(c) = c_optional {
+            self.handle_input_menu(c)
+        } else {
+            None
+        }
     }
 
     fn step(&mut self, c_optional: Option<char>) -> Option<StepResult> {
@@ -581,7 +630,25 @@ impl Tui {
     }
 
     fn display_game_menu(&self, game: &Game) {
-        // TODO
+        self.cursor_to_home();
+        for y in 0..FIELD_ROWS_VISIBLE {
+            print!("          |");
+            if y == 10 {
+                if game.menu_selected == 0 {
+                    print!("\x1b[7m");
+                }
+                print!("{:^20}\x1b[0m", game.menu[0].name);
+            } else if y == 11 {
+                if game.menu_selected == 1 {
+                    print!("\x1b[7m");
+                }
+                print!("{:^20}\x1b[0m", game.menu[1].name);
+            } else {
+                print!("                    ");
+            }
+            print!("|");
+            print!("\r\x1b[1B");
+        }
     }
 
     fn display_game(&self, game: &Game) {
@@ -589,6 +656,7 @@ impl Tui {
             GameState::Menu => self.display_game_menu(game),
             GameState::InGame => self.display_game_ingame(game),
         }
+        std::io::stdout().flush().unwrap();
     }
 
     fn clear_screen(&self) {
@@ -641,6 +709,7 @@ fn main() {
     let tui = Tui::default();
     let mut game = Game::default();
     tui.display_game(&game);
+    std::thread::sleep(std::time::Duration::from_millis(1000));
     let mut noblock_stdin = NonBlockingReader::from_fd(std::io::stdin()).unwrap();
     'outer: while !noblock_stdin.is_eof() {
         let mut buf = String::new();