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Reorganize view code in game_of_life

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This commit is contained in:
Héctor Ramón Jiménez 2020-05-03 00:08:41 +02:00
parent cc8f5b6fc8
commit a43fb42428
1 changed files with 102 additions and 71 deletions
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173
examples/game_of_life/src/main.rs
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@ -19,16 +19,12 @@ pub fn main() {
#[derive(Default)]
struct GameOfLife {
grid: Grid,
controls: Controls,
statistics: Statistics,
is_playing: bool,
queued_ticks: usize,
speed: usize,
next_speed: Option<usize>,
toggle_button: button::State,
next_button: button::State,
clear_button: button::State,
speed_slider: slider::State,
tick_duration: Duration,
queued_ticks: usize,
last_ticks: usize,
}
#[derive(Debug, Clone)]
@ -64,21 +60,21 @@ impl Application for GameOfLife {
match message {
Message::Grid(message) => {
if let Some(tick_duration) = self.grid.update(message) {
self.tick_duration = tick_duration;
self.statistics.tick_duration = tick_duration;
}
}
Message::Tick(_) | Message::Next => {
if let Some(task) = self.grid.tick(self.queued_ticks + 1) {
self.last_ticks = self.queued_ticks;
self.queued_ticks = 0;
self.queued_ticks = (self.queued_ticks + 1).min(self.speed);
if let Some(task) = self.grid.tick(self.queued_ticks) {
if let Some(speed) = self.next_speed.take() {
self.speed = speed;
}
self.statistics.last_queued_ticks = self.queued_ticks;
self.queued_ticks = 0;
return Command::perform(task, Message::Grid);
} else {
self.queued_ticks = (self.queued_ticks + 1).min(self.speed);
}
}
Message::Toggle => {
@ -109,65 +105,13 @@ impl Application for GameOfLife {
}
fn view(&mut self) -> Element<Message> {
let playback_controls = Row::new()
.spacing(10)
.push(
Button::new(
&mut self.toggle_button,
Text::new(if self.is_playing { "Pause" } else { "Play" }),
)
.on_press(Message::Toggle)
.style(style::Button),
)
.push(
Button::new(&mut self.next_button, Text::new("Next"))
.on_press(Message::Next)
.style(style::Button),
);
let selected_speed = self.next_speed.unwrap_or(self.speed);
let speed_controls = Row::new()
.width(Length::Fill)
.align_items(Align::Center)
.spacing(10)
.push(
Slider::new(
&mut self.speed_slider,
1.0..=1000.0,
selected_speed as f32,
Message::SpeedChanged,
)
.style(style::Slider),
)
.push(Text::new(format!("x{}", selected_speed)).size(16));
let stats = Column::new()
.width(Length::Units(150))
.align_items(Align::Center)
.spacing(2)
.push(
Text::new(format!("{} cells", self.grid.cell_count())).size(14),
)
.push(
Text::new(format!(
"{:?} ({})",
self.tick_duration, self.last_ticks
))
.size(14),
);
let controls = Row::new()
.padding(10)
.spacing(20)
.align_items(Align::Center)
.push(playback_controls)
.push(speed_controls)
.push(stats)
.push(
Button::new(&mut self.clear_button, Text::new("Clear"))
.on_press(Message::Clear)
.style(style::Clear),
);
let controls = self.controls.view(
&self.grid,
&self.statistics,
self.is_playing,
selected_speed,
);
let content = Column::new()
.push(self.grid.view().map(Message::Grid))
@ -666,3 +610,90 @@ mod grid {
Panning { translation: Vector, start: Point },
}
}
#[derive(Default)]
struct Controls {
toggle_button: button::State,
next_button: button::State,
clear_button: button::State,
speed_slider: slider::State,
}
impl Controls {
fn view<'a>(
&'a mut self,
grid: &Grid,
statistics: &'a Statistics,
is_playing: bool,
speed: usize,
) -> Element<'a, Message> {
let playback_controls = Row::new()
.spacing(10)
.push(
Button::new(
&mut self.toggle_button,
Text::new(if is_playing { "Pause" } else { "Play" }),
)
.on_press(Message::Toggle)
.style(style::Button),
)
.push(
Button::new(&mut self.next_button, Text::new("Next"))
.on_press(Message::Next)
.style(style::Button),
);
let speed_controls = Row::new()
.width(Length::Fill)
.align_items(Align::Center)
.spacing(10)
.push(
Slider::new(
&mut self.speed_slider,
1.0..=1000.0,
speed as f32,
Message::SpeedChanged,
)
.style(style::Slider),
)
.push(Text::new(format!("x{}", speed)).size(16));
Row::new()
.padding(10)
.spacing(20)
.align_items(Align::Center)
.push(playback_controls)
.push(speed_controls)
.push(statistics.view(grid))
.push(
Button::new(&mut self.clear_button, Text::new("Clear"))
.on_press(Message::Clear)
.style(style::Clear),
)
.into()
}
}
#[derive(Default)]
struct Statistics {
tick_duration: Duration,
last_queued_ticks: usize,
}
impl Statistics {
fn view(&self, grid: &Grid) -> Element<Message> {
Column::new()
.width(Length::Units(150))
.align_items(Align::Center)
.spacing(2)
.push(Text::new(format!("{} cells", grid.cell_count())).size(14))
.push(
Text::new(format!(
"{:?} ({})",
self.tick_duration, self.last_queued_ticks
))
.size(14),
)
.into()
}
}