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use std::io::{self, Write};
use crossterm::{
QueueableCommand,
cursor::MoveTo,
event::{self, Event, KeyCode, KeyEvent, KeyEventKind, KeyModifiers},
style::{Color, PrintStyledContent, Stylize},
terminal::{self, Clear, ClearType},
};
use crate::{
Application,
core_game_engine::Tetromino,
tui_menus::{Menu, MenuUpdate},
};
impl<W: Write> Application<W> {
pub fn run_menu_title(&mut self) -> io::Result<MenuUpdate> {
let selection = vec![
Menu::NewGame,
Menu::Settings,
Menu::ScoresAndReplays {
cursor_pos: 0,
camera_pos: 0,
},
Menu::Statistics,
Menu::About,
Menu::Quit,
];
let mut selected = 0usize;
let mut dynamic_title_style = 1isize;
let mut dynamic_color_offset = 0isize;
// FIXME: Hacky. In all other menus we can afford to do this inside the loop, but not here? (Also beware: We manually do this on resize).
// FIXME: This piece of boileplate and workaround in currently in every menu. The reason is that Windows Terminal is SO slow at printing it visibly flickers - because it ALSO always sends double the number of signals (sends key releases but is not kitty compatible?). As a workaround, it seems that clearing the screen leads to little flicker (like before), as opposed to writing empty characters over the screen.
if self.settings.tui_coloring().bg_tui == Color::Reset {
self.term.queue(Clear(ClearType::All))?;
} else {
self.term.queue(MoveTo(0, 0))?.queue(PrintStyledContent({
let (w, h) = terminal::size()?;
" ".repeat((w * h) as usize)
.on(self.settings.tui_coloring().bg_tui)
}))?;
}
loop {
let w_main: usize = Self::W_MAIN.into();
let (x_main, y_main) = Self::viewport_offset();
let y_selection = (Self::H_MAIN / 5).saturating_sub(1);
let dx_title = w_main.saturating_sub(36) / 2;
if self.settings.tui_symbols().blocky_title_logo {
let title_colors = [
"1111555 1111 1111555 5666 1111 ",
" 35 666 35 35526 33 33",
" 33 6661111 33 33 22 311113 ",
];
let title_color_offsets = [
"0000111 3333 4444555 0111 3333 ",
" 01 222 45 60011 22 44",
" 00 2223333 44 66 11 233334 ",
];
let title_unicode = [
"▄▄▄▄▄▄▄ ▄▄▄▄ ▄▄▄▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ",
" ▄▀ █▄▄ ▄▀ ▄█▄▄▀ ▄█ ▄█",
" █▀ █▄▄▄▄▄▄ █▀ █▀ ▀█ ▀▄▄▄▄▀ ",
];
for (dy, ((t_line, c_line), co_line)) in title_unicode
.iter()
.zip(title_colors)
.zip(title_color_offsets)
.enumerate()
{
for (dx, ((t_char, c_char), co_char)) in t_line
.chars()
.zip(c_line.chars())
.zip(co_line.chars())
.enumerate()
{
self.term.queue(MoveTo(
x_main + u16::try_from(dx_title + dx).unwrap(),
y_main + y_selection + u16::try_from(dy).unwrap(),
))?;
let color = match dynamic_title_style.rem_euclid(Self::W_MAIN as isize + 2)
{
// Default title colors.
0 => {
if c_char == ' ' {
Color::Reset
} else {
self.settings.tile_coloring().simplified_tile_col(
crate::core_game_engine::Tetromino::VARIANTS
[c_char.to_string().parse::<usize>().unwrap()]
.into(),
0,
)
}
}
1 => {
if co_char == ' ' {
Color::Reset
} else {
self.settings.tile_coloring().tetromino_rainbow()[(co_char
.to_string()
.parse::<isize>()
.unwrap()
+ dynamic_color_offset)
.rem_euclid(Tetromino::VARIANTS.len() as isize)
as usize]
}
}
n => {
let width = n - 1;
self.settings.tile_coloring().tetromino_rainbow()[(((dx + dy)
as isize
+ dynamic_color_offset)
/ width)
.rem_euclid(Tetromino::VARIANTS.len() as isize)
as usize]
}
};
self.term.queue(PrintStyledContent(
t_char
.to_string()
.with(color)
.on(self.settings.tui_coloring().bg_tui),
))?;
}
}
} else {
let title_ascii = [
r" / /____ / /________ __ / /___ __(_)",
r"/ __/ -_) __/ __/ _ \ /_// __/ // / / ",
r"\__/\__/\__/_/ \___/ \__/\_,_/_/ ",
];
// let title_ascii = [
// "....... .... ....... .... .... ",
// " .° :.. .° .:..° .: .:",
// " :° :...... :° :° °: °....° ",
// ];
//let color16_rainbow = [Color::DarkRed, Color::Red, Color::DarkYellow, Color::Yellow, Color::DarkGreen, Color::Green, Color::DarkBlue, Color::Blue, Color::DarkCyan, Color::Cyan, Color::DarkMagenta, Color::Magenta];
for (dy, bline) in title_ascii.iter().enumerate() {
for (dx, bchar) in bline.chars().enumerate() {
self.term.queue(MoveTo(
x_main + u16::try_from(dx_title + dx).unwrap(),
y_main + y_selection + u16::try_from(dy).unwrap(),
))?;
let color = self.settings.tile_coloring().tetromino_rainbow()[(((dx + dy)
as isize
+ dynamic_color_offset)
/ (dynamic_title_style.rem_euclid(Self::W_MAIN as isize) + 1))
.rem_euclid(Tetromino::VARIANTS.len() as isize)
as usize];
self.term.queue(PrintStyledContent(
bchar
.to_string()
.with(color)
.on(self.settings.tui_coloring().bg_tui),
))?;
}
}
}
let names = selection
.iter()
.map(|menu| menu.str_for_list_menu_selection())
.collect::<Vec<_>>();
let n_names = names.len();
for (i, name) in names.into_iter().enumerate() {
self.term
.queue(MoveTo(
x_main,
y_main + y_selection + 5 + u16::try_from(i).unwrap(),
))?
.queue(PrintStyledContent(
format!(
"{:^w_main$}",
if i == selected {
format!(
"{} {name} {}",
self.settings.tui_symbols().menu_pointers[0],
self.settings.tui_symbols().menu_pointers[1]
)
} else {
name.to_owned()
}
)
.with(self.settings.tui_coloring().fg_tui)
.on(self.settings.tui_coloring().bg_tui),
))?;
}
self.term
.queue(MoveTo(
x_main,
y_main + y_selection + 5 + u16::try_from(n_names).unwrap() + 2,
))?
.queue(PrintStyledContent(
format!("{:^w_main$}", "[←↓↑→/Enter/Esc/Del] or Vim,",)
.italic()
.with(self.settings.tui_coloring().fg_accent)
.on(self.settings.tui_coloring().bg_tui),
))?
.queue(MoveTo(
x_main,
y_main + y_selection + 5 + u16::try_from(n_names).unwrap() + 3,
))?
.queue(PrintStyledContent(
format!("{:^w_main$}", "Press [?] to view keybinds anytime",)
.italic()
.with(self.settings.tui_coloring().fg_accent)
.on(self.settings.tui_coloring().bg_tui),
))?;
self.term.flush()?;
// Wait for new input.
match event::read()? {
// Abort program.
Event::Key(KeyEvent {
code: KeyCode::Char('c' | 'C'),
modifiers: KeyModifiers::CONTROL,
kind: KeyEventKind::Press | KeyEventKind::Repeat,
..
}) => break Ok(MenuUpdate::Push(Menu::Quit)),
// Keybinds help menu.
Event::Key(KeyEvent {
code: KeyCode::Char('?'),
kind: KeyEventKind::Press | KeyEventKind::Repeat,
..
}) => {
let client_menu_name = "Title screen";
let legend = vec![
(
"Normal keybinds".to_owned(),
[
("Enter e", "Select"),
("↓/↑ j/k", "Navigate down/up"),
("?", "Open Keybinds overview"),
]
.into_iter()
.map(|(lhs, rhs)| (lhs.to_owned(), rhs.to_owned()))
.collect(),
),
(
"Special keybinds".to_owned(),
[
("Ctrl+C", "Quit program (respects save preferences)"),
(
"Ctrl+Alt+S",
"Perform savefile store (respects save preferences)",
),
(
"Ctrl+Alt+L",
"Reload app from savefile (overwrites current data!)",
),
]
.into_iter()
.map(|(lhs, rhs)| (lhs.to_owned(), rhs.to_owned()))
.collect(),
),
];
break Ok(MenuUpdate::Push(Menu::KeybindsOverview {
client_menu_name,
legend,
}));
}
// 'Quit menu' => Move cursor to 'quit' position, do not actually quit. This avoid spamming / double-clicking q or so and accidentally leaving, which might erase progress.
Event::Key(KeyEvent {
code: KeyCode::Esc | KeyCode::Char('q' | 'Q') | KeyCode::Backspace,
kind: KeyEventKind::Press,
..
}) => {
selected = selection.len() - 1;
}
// Select next menu.
Event::Key(KeyEvent {
code: KeyCode::Enter | KeyCode::Char('e' | 'E'),
kind: KeyEventKind::Press,
..
}) if !selection.is_empty() => {
let menu = selection.into_iter().nth(selected).unwrap();
break Ok(MenuUpdate::Push(menu));
}
// Move selector up.
Event::Key(KeyEvent {
code: KeyCode::Up | KeyCode::Char('k' | 'K'),
kind: KeyEventKind::Press | KeyEventKind::Repeat,
..
}) => {
selected += selection.len() - 1;
dynamic_color_offset += 1;
}
// Move selector down.
Event::Key(KeyEvent {
code: KeyCode::Down | KeyCode::Char('j' | 'J'),
kind: KeyEventKind::Press | KeyEventKind::Repeat,
..
}) => {
selected += 1;
dynamic_color_offset -= 1;
}
// Move l.
Event::Key(KeyEvent {
code: KeyCode::Left | KeyCode::Char('h' | 'H'),
kind: KeyEventKind::Press | KeyEventKind::Repeat,
..
}) => {
dynamic_title_style -= 1;
}
// Reload from savefile.
Event::Key(KeyEvent {
code: KeyCode::Char('l' | 'L'),
modifiers,
kind: KeyEventKind::Press | KeyEventKind::Repeat,
..
}) if { modifiers.contains(KeyModifiers::CONTROL.union(KeyModifiers::ALT)) } => {
self.temp_data.load_savefile_result = self.savefile_load();
}
// Store to savefile.
Event::Key(KeyEvent {
code: KeyCode::Char('s' | 'S'),
modifiers,
kind: KeyEventKind::Press | KeyEventKind::Repeat,
..
}) if { modifiers.contains(KeyModifiers::CONTROL.union(KeyModifiers::ALT)) } => {
self.temp_data.store_savefile_result = self.savefile_store();
}
// Move r.
Event::Key(KeyEvent {
code: KeyCode::Right | KeyCode::Char('l' | 'L'),
kind: KeyEventKind::Press | KeyEventKind::Repeat,
..
}) => {
dynamic_title_style += 1;
}
Event::Resize(_, _) => {
if self.settings.tui_coloring().bg_tui == Color::Reset {
self.term.queue(Clear(ClearType::All))?;
} else {
self.term.queue(MoveTo(0, 0))?.queue(PrintStyledContent({
let (w, h) = terminal::size()?;
" ".repeat((w * h) as usize)
.on(self.settings.tui_coloring().bg_tui)
}))?;
}
}
// Other event: don't care.
_ => {}
}
selected = selected.rem_euclid(selection.len());
}
}
}