// Splatter Tennis — boot, main loop, intro overlay, and the window.T test hooks.
// World units: meters. z axis = court depth, 0 at FAR baseline, 23.77 at NEAR baseline.
// Module map: config (tuning/constants) · state (mutable game state) · gameplay (logic/update)
//             render (camera/drawing) · input (keys/touch) · audio (sfx/umpire) · panel (T tuning UI)

import { TUNE, COURT, UMP_H } from './config.js';
import { P, O, ball, score, G, setupPoint } from './state.js';
import { update, keyPressed, solveShot, inServeBox, inCourt, forceZombies } from './gameplay.js';
import { fitViewport, render, proj } from './render.js';
import { voice } from './audio.js';
import { zombies, spawnZombie } from './zombies.js';
import { cv } from './dom.js';
import './input.js';

let last = performance.now();
function frame(now) {
  const dt = Math.min(0.033, (now - last) / 1000); last = now;
  update(dt); render();
  requestAnimationFrame(frame);
}

fitViewport();
setupPoint();

// intro overlay: first tap dismisses it, unlocks audio (iOS needs the gesture) and starts play
const intro = document.getElementById('intro');
function dismissIntro() {
  if (!intro.parentNode) return;
  intro.remove(); voice('quiet_please');
}
intro.addEventListener('pointerdown', e => { e.preventDefault(); dismissIntro(); });
addEventListener('keydown', () => dismissIntro(), { once: true });

// eaten: any tap or key (after a beat, so death-spam doesn't skip the screen) restarts
const maybeRestart = () => { if (G.mode === 'eaten' && G.eatenT > 0.7) location.reload(); }; // ponytail: reload = honest full reset
cv.addEventListener('pointerdown', maybeRestart);
addEventListener('keydown', maybeRestart);

// hidden shortcut: tap the umpire three times to summon zombie mode early
let umpTaps = [];
cv.addEventListener('pointerdown', e => {
  const r = cv.getBoundingClientRect();
  const x = (e.clientX - r.left) / r.width * (cv.width / 2);  // logical coords (RES = 2)
  const y = (e.clientY - r.top) / r.height * (cv.height / 2);
  if (x >= 6 && x <= 138 && y >= 6 && y <= 36) { G.logShow = !G.logShow; return; } // scoreboard tap = miss-log overlay
  const u = proj(7.1, 0, COURT.netZ);
  if (Math.abs(x - u.x) > 16 || y > u.y + 6 || y < u.y - UMP_H * u.s - 8) return;
  const now = performance.now();
  umpTaps = umpTaps.filter(t => now - t < 1600);
  umpTaps.push(now);
  if (umpTaps.length >= 3) { umpTaps = []; forceZombies(); }
});

requestAnimationFrame(frame);

// exposed for in-browser sanity checks and simulated playtests
window.T = { TUNE, ball, P, O, score, G, zombies, spawnZombie, solveShot, inServeBox, inCourt, proj, setupPoint,
  step: dt => update(dt), press: keyPressed,
  get phase() { return G.phase; }, set phase(v) { G.phase = v; } };