sergio
f46c7b435f
dominium-canvas-gpui: Element que pinta un RenderPlan como quads, centrado en sus bounds (rgba→hsla, único crate que toca gpui). app dominium: compone core→physics→iso→render-plan→canvas en una ventana GPUI con bucle de simulación de fondo (~11 tps), panel de estadísticas, controles play/pausa + re-sembrar, y re-siembra automática al colapso poblacional. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
311 lines
9.8 KiB
Rust
311 lines
9.8 KiB
Rust
//! `dominium` — la ventana viva del simulador de campo medio.
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//!
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//! Compone toda la cadena de dominium en un app GPUI:
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//!
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//! ```text
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//! dominium-core ─► dominium-physics ─► dominium-iso ─►
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//! dominium-render-plan ─► dominium-canvas-gpui ─► [esta ventana]
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//! ```
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//!
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//! Un bucle de fondo avanza la simulación ~11 veces por segundo; cada
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//! tick reconstruye la maqueta isométrica y la repinta. El panel
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//! derecho muestra las estadísticas agregadas y dos controles
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//! (play/pausa, re-sembrar). Cuando la población colapsa, el mundo se
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//! re-siembra solo: la demo nunca se queda en negro.
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use std::time::Duration;
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use dominium_canvas_gpui::DominiumCanvas;
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use dominium_core::{SimParams, World};
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use dominium_iso::{IsoProjector, ZWeights};
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use dominium_physics::tick;
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use dominium_render_plan::{build_plan, PlanConfig};
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use gpui::{
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div, hsla, prelude::*, px, Context, IntoElement, Render, SharedString, Window,
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};
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use nahual_launcher::launch_app;
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use nahual_theme::Theme;
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/// Lado de la grilla cuadrada del mundo.
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const GRID: usize = 40;
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/// Población inicial de Lemmings.
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const LEMMINGS: usize = 50;
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/// Periodo del bucle de simulación.
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const TICK_MS: u64 = 90;
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/// PRNG mínimo (LCG de 64 bits) — siembra reproducible sin dependencias.
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struct Lcg(u64);
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impl Lcg {
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fn new(seed: u64) -> Self {
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Self(seed)
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}
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fn next_u32(&mut self) -> u32 {
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// Constantes de Knuth (MMIX).
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self.0 = self
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.0
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.wrapping_mul(6364136223846793005)
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.wrapping_add(1442695040888963407);
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(self.0 >> 33) as u32
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}
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/// Flotante uniforme en `[0, 1)`.
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fn next_f32(&mut self) -> f32 {
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(self.next_u32() >> 8) as f32 / (1u32 << 24) as f32
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}
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}
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/// Siembra un mundo: continentes de `materia`, vetas de `oro`, niebla de
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/// `psique` y una población de Lemmings con sesgos y acciones variadas.
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fn seed(seed: u64) -> World {
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let mut w = World::new(GRID, GRID);
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let mut rng = Lcg::new(seed);
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for cy in 0..GRID {
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for cx in 0..GRID {
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let idx = w.grid.idx(cx, cy);
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// m² concentra la materia en parches → aspecto de continentes.
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let m = rng.next_f32();
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w.grid.materia[idx] = m * m * 60.0;
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if rng.next_f32() > 0.92 {
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w.grid.oro[idx] = rng.next_f32() * 40.0;
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}
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w.grid.psique[idx] = rng.next_f32() * 12.0;
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}
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}
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for _ in 0..LEMMINGS {
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let x = rng.next_f32() * (GRID as f32 - 1.0);
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let y = rng.next_f32() * (GRID as f32 - 1.0);
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let psi = [
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rng.next_f32(),
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rng.next_f32(),
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rng.next_f32(),
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rng.next_f32(),
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];
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let i = w.lemmings.spawn(x, y, 30.0 + rng.next_f32() * 40.0, psi);
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w.lemmings.accion[i] = (rng.next_u32() % 6) as u8;
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}
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w
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}
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/// Estadísticas agregadas de un instante de la simulación.
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struct Stats {
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poblacion: usize,
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materia: f32,
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oro: f32,
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energia: f32,
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}
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/// El estado del simulador y su presentación.
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struct Sim {
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world: World,
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params: SimParams,
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iso: IsoProjector,
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weights: ZWeights,
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cfg: PlanConfig,
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running: bool,
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/// Ticks transcurridos en la época actual.
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tick: u64,
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/// Cuántas veces se re-sembró el mundo (colapso poblacional).
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epoch: u64,
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/// Semilla rodante para cada re-siembra.
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rng_seed: u64,
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}
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impl Sim {
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fn new(cx: &mut Context<Self>) -> Self {
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let rng_seed = 0xD0_31_31_07;
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let sim = Self {
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world: seed(rng_seed),
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params: SimParams::default(),
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iso: IsoProjector::new(12.0, 0.05),
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weights: ZWeights::default(),
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cfg: PlanConfig {
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tile: 15.0,
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lemming_size: 8.0,
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lemming_lift: 0.7,
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palette: Default::default(),
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},
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running: true,
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tick: 0,
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epoch: 0,
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rng_seed,
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};
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sim.start_loop(cx);
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sim
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}
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/// Lanza el bucle de fondo que avanza la simulación.
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fn start_loop(&self, cx: &mut Context<Self>) {
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cx.spawn(async move |this, cx| loop {
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cx.background_executor()
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.timer(Duration::from_millis(TICK_MS))
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.await;
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let alive = this.update(cx, |sim, cx| {
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if sim.running {
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sim.advance();
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cx.notify();
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}
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});
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if alive.is_err() {
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break; // la entidad murió → ventana cerrada.
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}
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})
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.detach();
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}
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/// Un paso de simulación; re-siembra si la población colapsa.
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fn advance(&mut self) {
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tick(&mut self.world, &self.params);
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self.tick += 1;
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if self.world.lemmings.is_empty() {
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self.epoch += 1;
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self.rng_seed = self.rng_seed.wrapping_mul(2862933555777941757).wrapping_add(1);
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self.world = seed(self.rng_seed);
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self.tick = 0;
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}
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}
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/// Re-siembra el mundo a mano (botón ↺).
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fn reseed(&mut self) {
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self.rng_seed = self.rng_seed.wrapping_add(0x9E3779B9);
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self.world = seed(self.rng_seed);
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self.tick = 0;
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self.epoch += 1;
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}
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/// Calcula las estadísticas del instante actual.
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fn stats(&self) -> Stats {
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let g = &self.world.grid;
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Stats {
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poblacion: self.world.lemmings.len(),
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materia: g.materia.iter().sum(),
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oro: g.oro.iter().sum(),
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energia: self.world.lemmings.energia.iter().sum(),
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}
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}
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}
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/// Fila etiqueta/valor del panel de estadísticas.
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fn stat_row(label: &str, value: String, theme: &Theme) -> impl IntoElement {
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div()
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.flex()
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.flex_row()
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.justify_between()
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.child(div().text_color(theme.fg_muted).child(SharedString::from(label.to_string())))
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.child(div().text_color(theme.fg_text).child(SharedString::from(value)))
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}
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impl Render for Sim {
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fn render(&mut self, _w: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
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let theme = Theme::global(cx).clone();
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let panel = hsla(220.0 / 360.0, 0.18, 0.10, 1.0);
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let chip = hsla(220.0 / 360.0, 0.16, 0.16, 1.0);
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let canvas_bg = hsla(220.0 / 360.0, 0.22, 0.06, 1.0);
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let accent = theme.accent;
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let stats = self.stats();
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// --- Barra de estado ---
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let estado = if self.running { "● corriendo" } else { "‖ en pausa" };
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let status = div()
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.h(px(34.))
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.flex()
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.flex_row()
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.items_center()
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.justify_between()
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.px(px(14.))
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.bg(panel)
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.text_color(theme.fg_text)
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.child(SharedString::from(format!(
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"dominium · campo medio · época {} · tick {}",
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self.epoch, self.tick
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)))
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.child(div().text_color(accent).child(SharedString::from(estado.to_string())));
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// --- Maqueta isométrica ---
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let plan = build_plan(&self.world, &self.iso, &self.weights, &self.cfg);
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let canvas = div()
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.flex_1()
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.overflow_hidden()
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.child(DominiumCanvas::new(plan).background(canvas_bg));
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// --- Botones de control ---
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let play_label = if self.running { "‖ Pausar" } else { "▶ Reanudar" };
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let play = div()
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.id("play")
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.px(px(10.))
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.py(px(7.))
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.bg(chip)
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.rounded(px(5.))
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.text_color(theme.fg_text)
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.cursor_pointer()
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.hover(|s| s.bg(theme.bg_row_hover))
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.child(SharedString::from(play_label.to_string()))
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.on_click(cx.listener(|sim, _ev, _w, cx| {
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sim.running = !sim.running;
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cx.notify();
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}));
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let reset = div()
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.id("reset")
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.px(px(10.))
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.py(px(7.))
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.bg(chip)
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.rounded(px(5.))
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.text_color(theme.fg_text)
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.cursor_pointer()
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.hover(|s| s.bg(theme.bg_row_hover))
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.child("↺ Re-sembrar")
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.on_click(cx.listener(|sim, _ev, _w, cx| {
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sim.reseed();
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cx.notify();
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}));
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// --- Panel de estadísticas ---
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let side = div()
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.w(px(216.))
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.flex()
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.flex_col()
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.gap(px(10.))
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.p(px(12.))
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.bg(panel)
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.text_color(theme.fg_text)
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.child(div().text_color(theme.fg_muted).child("[SIM]"))
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.child(play)
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.child(reset)
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.child(div().h(px(1.)).bg(theme.border))
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.child(stat_row("Población", format!("{}", stats.poblacion), &theme))
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.child(stat_row("Materia", format!("{:.0}", stats.materia), &theme))
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.child(stat_row("Oro", format!("{:.0}", stats.oro), &theme))
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.child(stat_row("Energía", format!("{:.0}", stats.energia), &theme))
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.child(div().h(px(1.)).bg(theme.border))
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.child(
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div()
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.text_color(theme.fg_muted)
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.child(SharedString::from(format!("grilla {GRID}×{GRID}"))),
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)
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.child(
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div()
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.text_color(theme.fg_muted)
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.child("relieve = materia (Z)"),
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);
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// --- Composición ---
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div()
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.size_full()
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.flex()
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.flex_col()
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.bg(theme.bg_app)
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.child(status)
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.child(
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div()
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.flex()
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.flex_row()
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.flex_1()
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.child(canvas)
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.child(side),
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)
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}
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}
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fn main() {
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launch_app("brahman · dominium", (1120., 720.), Sim::new);
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}
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