// Events from the simulation (emit) turned into sounds, toasts and cards.
// ---------- Events from the simulation ----------
function drainEvents() {
  let n = 0;
  while (EV.length && n++ < 300) {
    const e = EV.shift();
    if (e.t === 'discover') {
      discoveryCard(e); playSfx('discover');
      if (!$('m-notebook').hidden) renderNotebook();
    } else if (e.t === 'milestone') {
      const m = MILESTONES.find(x => x.id === e.id);
      if (m && !['bit1', 'bit2', 'bit3', 'tank'].includes(m.id)) { showCard({ kind: 'Milestone', title: m.title, body: [m.msg, m.reward], accent: 'milestone' }); playSfx('milestone'); }
    } else if (e.t === 'cast_ready') {
      playSfx('cast', undefined, e.x, e.y);
    } else if (e.t === 'upgrade') {
      playSfx('upgrade'); if (SET.shake) R.shake = 1.4;
      showCard({ kind: e.kind === 'bit' ? 'Drill bit upgraded' : 'Bag upgraded', title: e.kind === 'bit' ? BIT_TIERS[e.tier].name : TANK_TIERS[e.tier].name, accent: 'milestone',
        body: [e.kind === 'bit' ? `Digs hardness ${BIT_TIERS[e.tier].hard} and below.` : `Holds ${TANK_TIERS[e.tier].cap.toLocaleString('en-US')} grains.`] });
      hudDirty = true;
    } else if (e.t === 'debris') spawnDebris(e.x, e.y, e.m);
    else if (e.t === 'suck') spawnSuck(e.x, e.y, e.m);
    else if (e.t === 'warn') spawnFloater(e.x, e.y, e.text, '#ff8a72');
    else if (e.t === 'sold') spawnFloater(e.x, e.y, '+' + fmtMoney(e.v));
    else if (e.t === 'order_new') {
      const o = e.o;
      showCard({ kind: 'New order', title: orderName(o), swatch: o.m, body: [`Within ${o.mins} minutes, for ${fmtMoney(o.pay)}: ${o.mult}× the market price.`, 'Goods dropped into the trade dock fill it first.'] });
      playSfx('discover'); hudDirty = true;
    }
    else if (e.t === 'order_done') {
      showCard({ kind: 'Order filled', title: '+' + fmtMoney(e.pay), swatch: e.m, accent: 'milestone', body: [`${orderName(e)} delivered.`, debt > 0 ? `${fmtMoney(debt)} still owed on the claim.` : ''] });
      playSfx('sale'); hudDirty = true; if (!$('m-notebook').hidden) renderNotebook();
    }
    else if (e.t === 'order_expired') {
      showCard({ kind: 'Order expired', title: orderName(e), swatch: e.m, body: [e.got ? `You delivered ${e.got} of ${e.qty}. They were paid at market price: ${fmtMoney(e.paid)}.` : 'Nothing was delivered. No harm done.'] });
      hudDirty = true;
    }
    else if (e.t === 'claim_paid') { showCard({ kind: 'Claim', title: 'The land is yours', accent: 'milestone', hold: 1.5, body: ['You have paid off the claim on this land.', 'Keep filling orders: bigger buyers bring bigger ones. The ledger has bigger goals too.'] }); playSfx('milestone'); }
    else if (e.t === 'sprout') { showCard({ kind: 'Discovery', title: 'A sapling', swatch: ACORN, body: ['An acorn on soil under open sky has sprouted.', 'It grows into a tree in about a minute and a half. Keep the space above it clear.'] }); playSfx('discover'); }
    else if (e.t === 'sfx') { if (e.s) playSfx(e.s, e.a, e.x, e.y); }
    else if (e.t === 'toast') { if (e.text) toast(e.text); }
  }
}