Fill the rack yourself, and roll barrels out that fill it

The rack had five hardcoded slots where the index WAS the weapon, spelled out in
five places: SLOTS, slotStock, WDESC, drawRack's three parallel arrays,
deliverTin's w+1, and bare wsel === 1|2|3 / G.weapon === 4 tests across five
files. config.WEAPONS is the one table now, G.rack holds up to four {id, n} in
the order you GATHERED them, and slot 0 stays BALL. Everything reads through
slotId/slotStock/slotEntry, so nothing else knows how the rack is stored.

A fifth weapon is always allowed, per Oliver: it rides slot 0 as G.temp until
spent, then slot 0 goes back to the infinite ball. A barrel arms on the spot and
is spent quickly, so refusing it would mean a barrel you shot did nothing. And a
spent weapon LEAVES its slot -- with gathered slots, an exhausted weapon holding
one is a quarter of the rack you can never pick up into. (The old rack kept its
empties dimmed, which was right when a slot meant "BOMB goes here".)

Four new weapons, and they are all the ONE existing pellet loop. firePellet(w)
stamps the WEAPONS row onto the round -- r, dmg, hp, pierce, boom, ignite, col,
speed, life -- so the beacon cannon, flamethrower, laser and rocket needed no new
array and no new update; the break after the first body was the only thing making
a pellet single-target. All four go through the same isBoss branch, which is why
none can silently no-op on a boss the way three of five once did. Measured:
gun/beacon/laser/rocket reach past 16 m, the flamer is a ~6 m cone that ignites.

G.mgT stays the mode timer for all of them, so the eighteen !(G.mgT > 0) guards
across five files did not have to change. kind:'burst' auto-fires at its own rate
for len seconds; kind:'shot' holds the same braced stance and fires one per tap.

The barrels reuse the ball machine's shape: a rolling, shootable non-body. All
three of the registrations that fail silently are done -- blocksClear (loot must
not gate the hand-clear), the contact guard (furniture cannot eat you), and
hitR/GORE_MUL/zombieH. It scores nothing.

The pink had to become procedural. The chroma key deletes every pixel where red
and blue both beat green by 40, so a magenta drum and a magenta laser pistol both
came back as hollow outlines -- 19% and 15% solid against 50-56% for the icons in
other colours. The drum is grey steel with hazard chevrons and every bit of its
pink is the halo drawBarrel paints; the laser went electric blue. Both are solid
now (92% and 58%), and the rule is written down in HANDOFF.

tinTriples 3 -> 10 as asked, and the four dead TUNE ammo constants are gone --
nothing read them once the table landed, which is a panel value you can tune all
day for no effect.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

config.js

@@ -211,10 +211,9 @@ export const TUNE = {
   // on its own so there is always a chance at one. Fires off the next hand-cleared wave.
   duelFirst: 2,     // game after which the first scheduled sudden-death duel is called
   duelEvery: 3,     // games between scheduled duels after the first
-  bombMax: 3,       // bomb balls in a fresh tin
-  tinTriples: 3,    // triple-serves in a fresh tin
-  tinFlames: 3,     // flame balls in a fresh tin
-  tinGuns: 1,       // machine-gun charges in a fresh tin
+  // How many a fresh tin holds now lives on its WEAPONS row (`tin`), because the rack is no longer
+  // four fixed types — bombMax/tinTriples/tinFlames/tinGuns lived here and nothing read them after
+  // the table landed, which is a value you can tune in the panel all day for no effect.
   wCap: 9,          // per-type cap on the courtside rack — tins accumulate, but only so many
   rackH: 30,        // px height of the bottom weapon rack (feel knob: how much court it covers).
                     // 22 logical px is ~30 CSS px on a phone — under half Apple's 44px target, which
@@ -231,6 +230,14 @@ export const TUNE = {
   mgPelletR: 0.5,   // m of extra hit radius on a pellet: a fat round. "Bigger ball = more damage."
   dmgPelletHp: 2,   // hp a pellet takes off a body — shamblerHp is 2, so the horde gun one-shots them
   mgPickupLen: 8,   // s the machine-gun tin (4th delivery) auto-fires outside hordes
+  shotHoldLen: 14,  // s you stay braced with a TAP-fired weapon (laser, rocket) before the window
+                    // closes on its own. Running the magazine out ends it earlier, which is the
+                    // normal way; this only stops a forgotten rocket freezing the serve loop.
+  // ---- the weapon barrel: the only way to get the four weapons that are not on the duel ladder
+  barrelEvery: 3,   // games between barrels being rolled on (like the ball machine's machEvery)
+  barrelRoll: 2.6,  // m/s it trundles across the far court — fast enough to have to be led
+  barrelHp: 1,      // anything pops it: ball, pellet, bomb, flame, swish. It is a target, not a body
+  barrelH: 1.15,    // drawn height (a body is 1.8)
   fps: 60,          // frame cap — 30 halves battery/heat but Oliver felt it; smoothness wins (0 = uncapped)
   runnerSpeed: 3.2, // runner ('f') speed multiplier over the shamble
   runnerVMax: 4.2,  // hard runner speed cap — the late-game ramp must stay humanly reactable
@@ -293,7 +300,10 @@ export const EATEN_FEED_R = 1.15; // m — how tight the feeding ring packs arou
 // desaturated from the original arcade primaries: they were shouting over the artwork.
 // (NOT the gore — blood and piles keep their loud reds; only text and interactive UI.)
 export const UI = { hot: '#d9705f', warm: '#e0cc72', pick: '#cbd06a', cream: '#e8e8dc',
-                    dim: '#8fa0b8', bad: '#a34a42', ball: '#dbe063' };
+                    dim: '#8fa0b8', bad: '#a34a42', ball: '#dbe063',
+                    // the weapon barrel's glow, and the only pink on the court: nothing else in the
+                    // palette is near it, so "pink means a weapon is in there" needs no explaining
+                    pink: '#ff5cf0' };
 
 // ------------------------------------------------------------------ courts ----
 // A court type is pure DATA: adding one is a row here plus its four PNGs, never a change to render().
@@ -408,13 +418,54 @@ export const ZWOUND = {
   k: ['z_kw', 'z_kw2', 'z_kw3', 'z_kw4'],
 };
 
+// ---- THE ARSENAL. One table, keyed by id, replacing the five places the roster used to be spelled
+// out (SLOTS, slotStock, WDESC, drawRack's three parallel arrays, and deliverTin's index mapping).
+// The rack no longer has a fixed weapon per slot: G.rack holds up to four of these in the order you
+// GATHERED them, and slot 0 stays BALL. A weapon is defined entirely by its row.
+//   kind 'serve' — arms the next serve (the four original tins)
+//   kind 'burst' — commits to a braced auto-fire window: `len` seconds at `rate` rounds/s
+//   kind 'shot'  — same braced stance, but each TAP fires one and `tin` is the magazine
+// The pellet fields (r, dmg, pierce, boom, ignite, col, speed) are stamped onto the round by
+// firePellet, so all four new weapons are the ONE existing pellet loop with different numbers.
+export const WEAPONS = {
+  bomb:   { label: 'BOMB',   icon: 'w_bomb',   tin: 3,  kind: 'serve',
+            desc: ['DETONATES ON CONTACT', 'CLEARS A WHOLE CROWD AT ONCE'] },
+  triple: { label: 'TRIPLE', icon: 'w_triple', tin: 10, kind: 'serve',   // was 3 — Oliver asked for ten
+            desc: ['ONE SERVE, THREE BALLS', 'FANNED WIDE ACROSS THE LANE'] },
+  fire:   { label: 'FIRE',   icon: 'w_fire',   tin: 3,  kind: 'serve',
+            desc: ['KILLS ON ANY TOUCH', 'AND SETS THE OTHERS ALIGHT'] },
+  gun:    { label: 'GUN',    icon: 'w_gun',    tin: 1,  kind: 'burst', len: 8, rate: 12,
+            r: 0.5, dmg: 0.34, hp: 2, speed: 26,
+            desc: ['HOLD THE LINE AND SPRAY', 'A BURST, NOT A SERVE'] },
+  // ---- the four that come out of a barrel. Won by shooting one, never delivered.
+  beacon: { label: 'BEACON', icon: 'w_beacon', tin: 1,  kind: 'burst', len: 10, rate: 3,
+            r: 1.1, dmg: 3, hp: 9, speed: 17, col: '#7fefff', glow: 1,
+            desc: ['A SLOW BEAT OF BIG', 'GLOWING SHELLS'] },
+  flamer: { label: 'FLAMER', icon: 'w_flamer', tin: 1,  kind: 'burst', len: 5, rate: 16,
+            r: 0.8, dmg: 2, hp: 9, speed: 11, life: 0.55, ignite: true, col: '#ffa040', glow: 1, // life 0.55s x 11 m/s = a ~6 m cone
+            desc: ['A CONE OF FIRE', 'AND THE FIRE SPREADS'] },
+  laser:  { label: 'LASER',  icon: 'w_laser',  tin: 10, kind: 'shot',
+            // NOT magenta: the icon art is chroma-keyed and the key eats every pink/purple
+            // (min(r,b) > g+40), so a magenta laser came back as a hollow outline. Pink stays
+            // the BARREL's identity, where it is a procedural glow and never goes near the key.
+            r: 0.55, dmg: 3, hp: 9, speed: 70, pierce: true, col: '#8ab6ff', glow: 1,
+            desc: ['TEN SHOTS, AND EACH ONE', 'GOES THROUGH THE WHOLE LANE'] },
+  rocket: { label: 'ROCKET', icon: 'w_rocket', tin: 3,  kind: 'shot',
+            r: 0.6, dmg: 3, hp: 9, speed: 22, boom: true, col: '#ffd050', glow: 1,
+            desc: ['THREE ROCKETS', 'EACH ONE TAKES THE CROWD'] },
+};
+// what a pink barrel can be carrying — the four above that you cannot win any other way
+export const BARREL_WEAPONS = ['beacon', 'laser', 'rocket', 'flamer'];
+export const RACK_MAX = 4; // gathered weapons the rack holds; a 5th rides slot 0 until it is spent
+
 export const MACH_H = 1.55; // was 1.15 — waist high read as a prop you could ignore. Still furniture
                             // (a body is PLAYER_H 1.88), but big enough to be a thing on the court.
 
 // Drawn height of a body on the far side, by variant. render draws to it AND the serve aims at a
 // fraction of it, so the two cannot drift — a shot at a brute has to arrive at the brute's chest,
 // not at the height a shambler's chest happens to be.
-export const zombieH = zb => zb.variant === 'g' ? 2.7 : zb.variant === 'd' ? 2.15
+export const zombieH = zb => zb.variant === 'o' ? TUNE.barrelH
+  : zb.variant === 'g' ? 2.7 : zb.variant === 'd' ? 2.15
   : zb.variant === 'k' ? 3.2 : zb.variant === 'h' ? 2.4
   : zb.variant === 'r' ? 1.85 : zb.variant === 'm' ? MACH_H
   : zb.variant === 'B' ? 1.8 * (zb.scale || 1.5) : 1.8;