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@@ -0,0 +1,99 @@
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+use dioxus::{events::MouseEvent, prelude::*};
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+
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+fn main() {
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+ dioxus::desktop::launch(app);
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+}
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+
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+fn app(cx: Scope) -> Element {
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+ let (val, set_val) = use_state(&cx, || 5);
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+
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+ cx.render(rsx! {
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+ div {
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+ user_select: "none",
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+ webkit_user_select: "none",
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+ margin_left: "10%",
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+ margin_right: "10%",
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+ h1 { "Click die to generate a new value" }
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+ div {
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+ cursor: "pointer",
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+ height: "80%",
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+ width: "80%",
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+ Die {
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+ value: *val,
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+ keep: true,
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+ onclick: move |_| {
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+ use rand::Rng;
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+ let mut rng = rand::thread_rng();
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+ set_val(rng.gen_range(1..6));
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+ }
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+ }
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+ }
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+ }
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+ })
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+}
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+
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+#[derive(Props)]
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+pub struct DieProps<'a> {
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+ pub value: u64,
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+ pub keep: bool,
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+ pub onclick: EventHandler<'a, MouseEvent>,
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+}
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+
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+const DOTS: [(i64, i64); 7] = [(-1, -1), (-1, -0), (-1, 1), (1, -1), (1, 0), (1, 1), (0, 0)];
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+const DOTS_FOR_VALUE: [[bool; 7]; 6] = [
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+ [false, false, false, false, false, false, true],
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+ [false, false, true, true, false, false, false],
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+ [false, false, true, true, false, false, true],
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+ [true, false, true, true, false, true, false],
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+ [true, false, true, true, false, true, true],
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+ [true, true, true, true, true, true, false],
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+];
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+
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+const OFFSET: i64 = 600;
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+const DOT_RADIUS: &str = "200";
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+const HELD_COLOR: &str = "#aaa";
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+const UNHELD_COLOR: &str = "#ddd";
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+
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+// A six-sided die (D6) with dots.
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+#[allow(non_snake_case)]
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+pub fn Die<'a>(cx: Scope<'a, DieProps<'a>>) -> Element {
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+ let &DieProps { value, keep, .. } = cx.props;
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+
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+ let active_dots = &DOTS_FOR_VALUE[(value - 1) as usize];
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+ let fill = if keep { HELD_COLOR } else { UNHELD_COLOR };
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+ let dots = DOTS
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+ .iter()
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+ .zip(active_dots.iter())
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+ .filter(|(_, &active)| active)
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+ .map(|((x, y), _)| {
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+ let dcx = x * OFFSET;
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+ let dcy = y * OFFSET;
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+ rsx!(circle {
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+ cx: "{dcx}",
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+ cy: "{dcy}",
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+ r: "{DOT_RADIUS}",
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+ fill: "#333"
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+ })
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+ });
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+
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+ rsx!(cx,
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+ svg {
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+ onclick: move |e| cx.props.onclick.call(e),
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+ prevent_default: "onclick",
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+ "dioxus-prevent-default": "onclick",
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+ class: "die",
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+ view_box: "-1000 -1000 2000 2000",
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+
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+ rect {
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+ x: "-1000",
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+ y: "-1000",
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+ width: "2000",
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+ height: "2000",
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+ rx: "{DOT_RADIUS}",
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+ fill: "{fill}",
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+ }
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+
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+ dots
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+ }
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+ )
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+}
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