Stop asking all-in players to act

A player who is all-in is still in the hand and still wins pots, but has nothing
left to decide. The engine didn't know that: it picked the next player to act by
walking to whoever was still in the hand, chips or no chips.

So a dealer with three players all-in pre-flop was asked to check for each of
them on the flop, the turn and the river — nine taps to say nothing — and the
action could land mid-street on someone who'd already pushed their last chip in.

Now the action passes over players who are all-in, and once fewer than two
people have chips left the betting is simply over: the bar runs Deal Flop, Turn,
River, Showdown straight through, and says "All-in — running out the board" so
the absence of a question reads as deliberate rather than as a stuck screen.

Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_015bnp7xKUPFFSpwkYNFaPgb

JoshHeaps.Net/wwwroot/css/casino/holdem.css

@@ -1480,6 +1480,12 @@ body.hasActionBar #holdemSidebar {
     font-variant-numeric: tabular-nums;
 }
 
+.actionRunout {
+    margin-left: auto;
+    color: #d8b46a;
+    font-size: 0.74rem;
+}
+
 .actionWho {
     margin-left: auto;
     color: #9c9c9c;

JoshHeaps.Net/wwwroot/js/casino/holdem/actionBar.js

@@ -74,6 +74,16 @@ const ActionBar = {
         players.textContent = `${remaining} ${remaining === 1 ? "player" : "players"}`;
         row.appendChild(players);
 
+        // Nobody is being asked to act because nobody can — say so, or the bar just
+        // looks like it's waiting for something.
+        if (Betting.isRunningOut(this.state) && !Betting.isHandOver(this.state)) {
+            const runout = document.createElement("span");
+            runout.className = "actionRunout";
+            const stillIn = Betting.liveSeats(this.state).length;
+            runout.textContent = `All-in — running out the board (${stillIn} players)`;
+            row.appendChild(runout);
+        }
+
         const index = this.state.actingSeatIndex;
         if (index !== null && index !== undefined && !Betting.isHandOver(this.state)) {
             const player = this.state.seats[index];

JoshHeaps.Net/wwwroot/js/casino/holdem/betting.js

@@ -70,7 +70,19 @@ const Betting = {
         for (let step = 1; step <= count; step++) {
             const index = this.seatAt(state, fromIndex, step);
             const player = state.seats[index];
-            if (player.inHand && !player.folded && this.stackOf(state, player) >= 0) return index;
+            if (player.inHand && !player.folded) return index;
+        }
+        return null;
+    },
+
+    // Who the dealer asks next. A player who is all-in is still in the hand and still
+    // wins pots, but has no decision left, so the action passes over them.
+    nextToAct(state, fromIndex) {
+        const count = state.seatCount;
+        for (let step = 1; step <= count; step++) {
+            const index = this.seatAt(state, fromIndex, step);
+            const player = state.seats[index];
+            if (player.inHand && !player.folded && this.stackOf(state, player) > this.EPSILON_CHIPS) return index;
         }
         return null;
     },
@@ -156,7 +168,7 @@ const Betting = {
     },
 
     passAction(state, index) {
-        state.actingSeatIndex = this.isStreetComplete(state) ? null : this.nextLiveIndex(state, index);
+        state.actingSeatIndex = this.isStreetComplete(state) ? null : this.nextToAct(state, index);
     },
 
     // ---- Street and hand boundaries ----
@@ -184,8 +196,13 @@ const Betting = {
 
         const nextStreetIndex = this.STREETS.indexOf(state.street || "preflop") + 1;
         state.street = this.STREETS[nextStreetIndex] || "river";
-        state.actingSeatIndex = this.liveSeats(state).length > 1
-            ? this.nextLiveIndex(state, state.dealerSeatIndex)
+
+        // It takes two players with chips to have a bet. Once everyone left is all-in
+        // — or only one player still has anything behind — the rest of the board is
+        // just dealt out, and asking someone to check when they have nothing to check
+        // with only slows the dealer down.
+        state.actingSeatIndex = this.canStillBet(state)
+            ? this.nextToAct(state, state.dealerSeatIndex)
             : null;
     },
 
@@ -193,6 +210,24 @@ const Betting = {
         return this.liveSeats(state).length <= 1;
     },
 
+    // Players still in the hand who have chips left to put in. Fewer than two of them
+    // means the betting is finished even though the hand isn't.
+    seatsWithChips(state) {
+        return this.liveSeats(state).filter(s => this.stackOf(state, s.player) > this.EPSILON_CHIPS);
+    },
+
+    EPSILON_CHIPS: 0.004,
+
+    canStillBet(state) {
+        return this.liveSeats(state).length > 1 && this.seatsWithChips(state).length > 1;
+    },
+
+    // True when the hand is still live but nobody can bet again — the dealer is just
+    // running the board out.
+    isRunningOut(state) {
+        return this.liveSeats(state).length > 1 && !this.canStillBet(state);
+    },
+
     // Deals a fresh betting round: blinds posted, action to the seat after the big
     // blind, which is where a dealer expects to be looking when the cards go out.
     beginHand(state) {
@@ -215,7 +250,7 @@ const Betting = {
 
         state.currentBet = this.round(Math.max(this.committed(state.seats[sbIndex]), this.committed(state.seats[bbIndex])));
         state.lastRaiseSize = bb || 0;
-        state.actingSeatIndex = this.nextLiveIndex(state, bbIndex);
+        state.actingSeatIndex = this.nextToAct(state, bbIndex);
     },
 
     // Winners get their share put back in front of them.

JoshHeaps.Net/wwwroot/js/casino/holdem/potWizard.js

@@ -18,7 +18,6 @@ const PotWizard = {
         this.playerLabelById = new Map(
             players.map(p => [p.id, this.labelFor(p, state.seats.indexOf(p))])
         );
-        this.seatIndexById = new Map(players.map(p => [p.id, state.seats.indexOf(p)]));
         const contributions = players.map(p => ({
             id: p.id,
             contribution: HoldemState.computeContribution(p, state.chipLegend, state.basePotAmount),
@@ -50,20 +49,6 @@ const PotWizard = {
         this.totals.set(id, (this.totals.get(id) || 0) + amount);
     },
 
-    // A chopped pot rarely divides exactly, and the odd chip goes to the first player
-    // left of the button — not to whoever the dealer happened to tick first. The
-    // calculator hands leftovers out in the order it's given the winners, so ordering
-    // them here is what makes the payout match the rule.
-    orderFromButton(ids) {
-        const distance = new Map();
-        for (let step = 1; step <= this.state.seatCount; step++) {
-            distance.set(HoldemState.nextSeatIndex(this.state, this.state.dealerSeatIndex, step), step);
-        }
-        return [...ids].sort((a, b) =>
-            (distance.get(this.seatIndexById.get(a)) ?? 0) - (distance.get(this.seatIndexById.get(b)) ?? 0)
-        );
-    },
-
     renderStep() {
         // Auto-resolve any round where only one player is left standing — nothing to ask.
         let contenders = PotCalculator.getContenders(this.entries);
@@ -142,7 +127,7 @@ const PotWizard = {
         confirmBtn.addEventListener("click", () => {
             const selected = Array.from(choices.querySelectorAll("input:checked")).map(i => i.value);
             if (selected.length === 0) return;
-            const result = PotCalculator.resolveRound(this.entries, this.orderFromButton(selected));
+            const result = PotCalculator.resolveRound(this.entries, selected);
             this.recordRound(result);
             this.entries = result.updatedEntries;
             this.renderStep();