82 lines
2.3 KiB
Rust
82 lines
2.3 KiB
Rust
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use crate::model::{Sel, State, T, Terrain};
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use wasm_bindgen::JsCast;
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use web_sys::{CanvasRenderingContext2d, HtmlCanvasElement};
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const COLORS: [&str; 7] = [
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"#10305e", "#2a62a8", "#e0d08a", "#6aaa4a", "#3f7d3a", "#8a8a6a", "#aaaaaa",
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];
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pub fn draw(canvas: &HtmlCanvasElement, t: &Terrain, s: &State, sel: Option<Sel>) {
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canvas.set_width((t.w as f64 * T) as u32);
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canvas.set_height((t.h as f64 * T) as u32);
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let Some(ctx) = canvas
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.get_context("2d")
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.ok()
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.flatten()
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.and_then(|c| c.dyn_into::<CanvasRenderingContext2d>().ok())
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else {
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return;
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};
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for y in 0..t.h {
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for x in 0..t.w {
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ctx.set_fill_style_str(COLORS[t.kind(x, y)]);
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ctx.fill_rect(x as f64 * T, y as f64 * T, T, T);
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}
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}
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let dot = |x: usize, y: usize, r: f64, color: &str| {
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ctx.set_fill_style_str(color);
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ctx.begin_path();
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let _ = ctx.arc(
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x as f64 * T + T / 2.0,
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y as f64 * T + T / 2.0,
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r,
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0.0,
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std::f64::consts::TAU,
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);
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ctx.fill();
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};
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for r in &s.res {
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match r.2 {
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1 => dot(r.0, r.1, 3.5, "#1d4a1d"),
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2 => dot(r.0, r.1, 2.0, "#e85a8a"),
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_ => {
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ctx.set_fill_style_str("#666");
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ctx.fill_rect(r.0 as f64 * T + 2.0, r.1 as f64 * T + 2.0, 6.0, 6.0);
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}
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}
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}
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ctx.set_fill_style_str("#7a4a22");
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for h in &s.houses {
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ctx.fill_rect(h.0 as f64 * T + 1.0, h.1 as f64 * T + 1.0, T - 2.0, T - 2.0);
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}
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ctx.set_fill_style_str("#b05a2a");
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ctx.fill_rect(s.home.0 as f64 * T, s.home.1 as f64 * T, T, T);
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for a in &s.rabbits {
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dot(a.0, a.1, 2.5, "#fff");
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}
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for a in &s.wolves {
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dot(a.0, a.1, 4.0, "#d22");
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}
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for p in &s.people {
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dot(p.1, p.2, 4.0, "#ff0");
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}
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ctx.set_fill_style_str(&format!("rgba(5,10,50,{})", (1.0 - s.daylight) * 0.65));
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ctx.fill_rect(0.0, 0.0, t.w as f64 * T, t.h as f64 * T);
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if let Some(sel) = sel {
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let (x0, y0, x1, y1) = sel.rect();
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ctx.set_stroke_style_str("#fff");
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ctx.set_line_width(2.0);
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ctx.stroke_rect(
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x0 as f64 * T,
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y0 as f64 * T,
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(x1 - x0 + 1) as f64 * T,
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(y1 - y0 + 1) as f64 * T,
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);
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}
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}
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