EN605.607.81.SP22_ASDM_Project/front_end/src/main.rs
Stephen Seo a756f0b4b2 Have SharedState use an array of Rc's
Having each array element be an Rc<Cell<BoardState>> enables sharing
Rc's with the Slot subelement.
2022-03-01 11:05:56 +09:00

245 lines
9.9 KiB
Rust

use std::cell::Cell;
use std::rc::Rc;
use yew::prelude::*;
//const ROWS: u8 = 8;
const COLS: u8 = 7;
#[derive(Copy, Clone, Debug, PartialEq, Eq)]
enum BoardState {
Empty,
Cyan,
Magenta,
}
impl Default for BoardState {
fn default() -> Self {
Self::Empty
}
}
#[derive(Clone, Debug, PartialEq, Eq)]
struct SharedState {
board: [Rc<Cell<BoardState>>; 56],
}
impl Default for SharedState {
fn default() -> Self {
Self {
// cannot use [<type>; 56] because Rc does not impl Copy
board: [
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
Rc::new(Cell::new(BoardState::default())),
],
}
}
}
struct Slot {}
enum SlotMessage {
Press(u8),
}
#[derive(Clone, PartialEq, Properties)]
struct SlotProperties {
idx: u8,
state: Rc<Cell<BoardState>>,
}
impl Component for Slot {
type Message = SlotMessage;
type Properties = SlotProperties;
fn create(_ctx: &Context<Self>) -> Self {
Self {}
}
fn view(&self, ctx: &Context<Self>) -> Html {
let idx = ctx.props().idx;
let state = match ctx.props().state.as_ref().get() {
BoardState::Empty => "open",
BoardState::Cyan => "cyan",
BoardState::Magenta => "magenta",
};
let idx_copy = idx;
let onclick = ctx.link().callback(move |_| SlotMessage::Press(idx_copy));
let col = idx % COLS;
let row = idx / COLS;
html! {
<button class={format!("slot {} r{} c{}", state, row, col)} id={format!("{}", idx)} onclick={onclick}>
</button>
}
}
fn update(&mut self, ctx: &Context<Self>, msg: Self::Message) -> bool {
match msg {
SlotMessage::Press(idx) => {
let (shared, _) = ctx
.link()
.context::<SharedState>(Callback::noop())
.expect("shared to be set");
let value_at_idx = shared.board[idx as usize].get();
match value_at_idx {
BoardState::Empty => {
shared.board[idx as usize].replace(BoardState::Cyan);
}
BoardState::Cyan => {
shared.board[idx as usize].replace(BoardState::Magenta);
}
BoardState::Magenta => {
shared.board[idx as usize].replace(BoardState::Empty);
}
}
}
}
true
}
}
struct Wrapper {}
impl Component for Wrapper {
type Message = ();
type Properties = ();
fn create(_ctx: &Context<Self>) -> Self {
Self {}
}
fn view(&self, ctx: &Context<Self>) -> Html {
let (shared, _) = ctx
.link()
.context::<SharedState>(Callback::noop())
.expect("state to be set");
html! {
<div class="wrapper">
<Slot idx=0 state={shared.board[0].clone()} />
<Slot idx=1 state={shared.board[1].clone()} />
<Slot idx=2 state={shared.board[2].clone()} />
<Slot idx=3 state={shared.board[3].clone()} />
<Slot idx=4 state={shared.board[4].clone()} />
<Slot idx=5 state={shared.board[5].clone()} />
<Slot idx=6 state={shared.board[6].clone()} />
<Slot idx=7 state={shared.board[7].clone()} />
<Slot idx=8 state={shared.board[8].clone()} />
<Slot idx=9 state={shared.board[9].clone()} />
<Slot idx=10 state={shared.board[10].clone()} />
<Slot idx=11 state={shared.board[11].clone()} />
<Slot idx=12 state={shared.board[12].clone()} />
<Slot idx=13 state={shared.board[13].clone()} />
<Slot idx=14 state={shared.board[14].clone()} />
<Slot idx=15 state={shared.board[15].clone()} />
<Slot idx=16 state={shared.board[16].clone()} />
<Slot idx=17 state={shared.board[17].clone()} />
<Slot idx=18 state={shared.board[18].clone()} />
<Slot idx=19 state={shared.board[19].clone()} />
<Slot idx=20 state={shared.board[20].clone()} />
<Slot idx=21 state={shared.board[21].clone()} />
<Slot idx=22 state={shared.board[22].clone()} />
<Slot idx=23 state={shared.board[23].clone()} />
<Slot idx=24 state={shared.board[24].clone()} />
<Slot idx=25 state={shared.board[25].clone()} />
<Slot idx=26 state={shared.board[26].clone()} />
<Slot idx=27 state={shared.board[27].clone()} />
<Slot idx=28 state={shared.board[28].clone()} />
<Slot idx=29 state={shared.board[29].clone()} />
<Slot idx=30 state={shared.board[30].clone()} />
<Slot idx=31 state={shared.board[31].clone()} />
<Slot idx=32 state={shared.board[32].clone()} />
<Slot idx=33 state={shared.board[33].clone()} />
<Slot idx=34 state={shared.board[34].clone()} />
<Slot idx=35 state={shared.board[35].clone()} />
<Slot idx=36 state={shared.board[36].clone()} />
<Slot idx=37 state={shared.board[37].clone()} />
<Slot idx=38 state={shared.board[38].clone()} />
<Slot idx=39 state={shared.board[39].clone()} />
<Slot idx=40 state={shared.board[40].clone()} />
<Slot idx=41 state={shared.board[41].clone()} />
<Slot idx=42 state={shared.board[42].clone()} />
<Slot idx=43 state={shared.board[43].clone()} />
<Slot idx=44 state={shared.board[44].clone()} />
<Slot idx=45 state={shared.board[45].clone()} />
<Slot idx=46 state={shared.board[46].clone()} />
<Slot idx=47 state={shared.board[47].clone()} />
<Slot idx=48 state={shared.board[48].clone()} />
<Slot idx=49 state={shared.board[49].clone()} />
<Slot idx=50 state={shared.board[50].clone()} />
<Slot idx=51 state={shared.board[51].clone()} />
<Slot idx=52 state={shared.board[52].clone()} />
<Slot idx=53 state={shared.board[53].clone()} />
<Slot idx=54 state={shared.board[54].clone()} />
<Slot idx=55 state={shared.board[55].clone()} />
</div> // wrapper
}
}
}
#[function_component(App)]
fn app() -> Html {
let ctx = use_state(SharedState::default);
html! {
<ContextProvider<SharedState> context={(*ctx).clone()}>
<Wrapper />
</ContextProvider<SharedState>>
}
}
fn main() {
yew::start_app::<App>();
}