span class="hc-dim">Move the stick to take over.', 7); return true; } function aiStep(dt) { if (dt === null) { // the user moved the stick / keys if (H.nav || H.tour) { stopAI(true); narrate('Manual control. AI Drive stopped.', 3); setMode('WALK'); } return null; } var n = H.nav; if (!n) { S.ai = null; return null; } var Pp = S.p, w = n.path[n.i], dx = w.x - Pp.x, dz = w.z - Pp.z, d = Math.hypot(dx, dz); while (d < 1.6 && n.i < n.path.length - 1) { n.i++; w = n.path[n.i]; dx = w.x - Pp.x; dz = w.z - Pp.z; d = Math.hypot(dx, dz); } if (n.i === n.path.length - 1 && d < 1.0) { arrive(); return null; } var rem = d; for (var k = n.i + 1; k < n.path.length; k++) rem += Math.hypot(n.path[k].x - n.path[k - 1].x, n.path[k].z - n.path[k - 1].z); n.sp = Math.min(clamp(rem * 0.9, 2.5, 16), n.sp + dt * 9); n.t += dt; if (n.t > 1.5) { // stuck? re-plan from here if (Math.hypot(Pp.x - n.px, Pp.z - n.pz) < 1) { n.stuck++; var np = n.stuck < 3 ? findPath(Pp, n.p.stand || n.p) : null; if (!np) { var nm = n.p.name; stopAI(true); setMode('WALK'); narrate('I got stuck on the way to ' + esc(nm) + '. You have manual control.'); return null; } n.path = np; n.i = 1; showPath(np); } n.t = 0; n.px = Pp.x; n.pz = Pp.z; } if (H.mode !== 'LOOK') { var want = Math.atan2(-dx, -dz), da = ((want - S.camYaw + Math.PI * 3) % (Math.PI * 2)) - Math.PI; S.camYaw += da * Math.min(1, dt * 2.2); } return { vx: dx / d * n.sp, vz: dz / d * n.sp, sp: n.sp }; } /* ARRIVED toast (2026-10-10): every arrival (AI Drive, radar Go, the AI pilot, tour stops, flights) shows 'ARRIVED: ', logs it in the narration and fires window 'city-arrived' {name} (hyper-auto -> #ai-status). */ var arrEl = null; function arrived(name, narr) { if (!arrEl) { arrEl = document.createElement('div'); arrEl.id = 'hc-arrived'; arrEl.setAttribute('role', 'status'); arrEl.setAttribute('aria-live', 'polite'); (document.getElementById('sc-hud') || document.body).appendChild(arrEl); } arrEl.textContent = '\u2713 ARRIVED: ' + name; arrEl.classList.add('show'); clearTimeout(arrEl._h); arrEl._h = setTimeout(function () { arrEl.classList.remove('show'); }, 3500); narrate('ARRIVED: ' + esc(name) + '.' + (narr ? ' ' + narr : ''), narr ? 8 : 5); try { dispatchEvent(new CustomEvent('city-arrived', { detail: { name: name } })); } catch (e) {} } function arrive() { var n = H.nav, p = n.p; H.nav = null; S.ai = null; clearPath(); S.camYaw = Math.atan2(-(p.x - S.p.x), -(p.z - S.p.z)) || S.camYaw; if (H.tour) { tourArrived(p); return; } setMode('WALK'); H.armed = false; arrived(p.name); if (n.onArrive) n.onArrive(); else poiCard(p); } function flyTo(t, mode, reason) { if (!flying()) return false; pushHist(); if (t.home) { A.startAuto(true); H.flyDrive = { t: t }; setMode(mode || 'AI DRIVE'); narrate('Flying home to the Orbital Spaceport; autopilot will land on the pad. ' + (reason || '') + ' Move the stick to take over.'); return true; } var d = Math.hypot(t.x - S.ship.x, t.z - S.ship.z), alt = t.alt || Math.max(0, A.heightAt(t.x, t.z)) + 600; S.mode = 'auto'; H.flyDrive = { t: t }; S.auto = { phase: 'cruise', tx: t.x, tz: t.z, alt: alt, arrive: Math.min(700, Math.max(250, d * 0.2)), onArrive: function () { H.flyDrive = null; setMode('FLIGHT'); H.focus = t; arrived(t.name, 'You have the stick. ' + esc(t.text || '')); beacon(t, 6); } }; setMode(mode || 'AI DRIVE'); narrate('Flying to ' + esc(t.name) + ': ' + fmtDist(d) + ', cruising with terrain look-ahead. ' + (reason || '') + ' Move the stick to take over.'); return true; } function driveTo(p, mode, onArrive) { H.focus = p; if (flying()) { if (p.id === 'port') p = FLY[0]; if (!FLY.includes(p)) p = { name: p.name, x: p.x, z: p.z, alt: Y + 380, text: p.text }; return flyTo(p, mode); } if (S.mode !== 'walk') { narrate('Launch first. AI Drive works on foot and in flight.', 4); return false; } if (FLY.includes(p)) { if (p.id === 'home') p = P('port'); else if (p.id === 'city') p = P('plaza'); else { narrate('' + esc(p.name) + ' is a flight destination. Walking you to the Orbital Spaceport: board a ship, LAUNCH, then tap 🤖 again.', 9); return startWalk(P('port'), mode, '', null); } } return startWalk(p, mode, '', onArrive); } function stopAI(silent) { var was = !!(H.nav || H.tour || H.flyDrive || H.armed); H.nav = null; H.tour = null; H.armed = false; S.ai = null; clearPath(); if (H.flyDrive) { H.flyDrive = null; if (S.mode === 'auto') { S.mode = 'fly'; S.auto = null; } } if (!silent) { setMode(baseMode()); if (was) narrate('AI Drive stopped. You have manual control.', 4); else narrate('Nothing to stop. You already have manual control.', 3); } } /* ---------------- TOUR ---------------- */ var TOUR = ['plaza', 'sable', 'forumgate', 'studio', 'port', 'warp']; function startTour()