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 ----
@@ -185,24 +197,37 @@ const Betting = {
         const nextStreetIndex = this.STREETS.indexOf(state.street || "preflop") + 1;
         state.street = this.STREETS[nextStreetIndex] || "river";
 
-        if (this.liveSeats(state).length <= 1) {
-            state.actingSeatIndex = null;
-            return;
-        }
-
-        // After the flop the first live player left of the button acts — which heads-up
-        // is the big blind, since the button is the small blind. Naming the big blind
-        // directly also covers a button parked on a seat nobody is sitting in.
-        const { bbIndex, headsUp } = HoldemState.getBlindSeats(state);
-        state.actingSeatIndex = headsUp && bbIndex !== null && !state.seats[bbIndex].folded
-            ? bbIndex
-            : 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;
     },
 
     isHandOver(state) {
         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) {
@@ -217,23 +242,15 @@ const Betting = {
 
         const sb = Number(state.smallBlind) || 0;
         const bb = Number(state.bigBlind) || 0;
-        const { sbIndex, bbIndex, headsUp } = HoldemState.getBlindSeats(state);
+        const sbIndex = this.seatAt(state, state.dealerSeatIndex, 1);
+        const bbIndex = this.seatAt(state, state.dealerSeatIndex, 2);
 
-        if (sbIndex === null || bbIndex === null) {
-            state.currentBet = 0;
-            state.actingSeatIndex = null;
-            return;
-        }
-
-        if (sb > 0) this.putIn(state, sbIndex, sb);
-        if (bb > 0) this.putIn(state, bbIndex, bb);
+        if (sb > 0 && state.seats[sbIndex].inHand) this.putIn(state, sbIndex, sb);
+        if (bb > 0 && state.seats[bbIndex].inHand) this.putIn(state, bbIndex, bb);
 
         state.currentBet = this.round(Math.max(this.committed(state.seats[sbIndex]), this.committed(state.seats[bbIndex])));
         state.lastRaiseSize = bb || 0;
-
-        // Heads-up the button is the small blind and acts first before the flop; with
-        // three or more it's the seat after the big blind.
-        state.actingSeatIndex = headsUp ? sbIndex : 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/state.js

@@ -163,36 +163,10 @@ const HoldemState = {
         state.dealerSeatIndex = this.nextSeatIndex(state, state.dealerSeatIndex, 1);
     },
 
-    // Seats dealt into this hand, in blind order starting from the seat after the
-    // button. Blinds follow the players, not the chairs — the seats immediately left
-    // of the button are empty often enough that counting chairs posts them to nobody.
-    liveOrderFromButton(state) {
-        const order = [];
-        for (let step = 1; step <= state.seatCount; step++) {
-            const index = this.nextSeatIndex(state, state.dealerSeatIndex, step);
-            if (state.seats[index].inHand) order.push(index);
-        }
-        return order;
-    },
-
-    // Who posts what. Heads-up is its own rule: with two players the button posts the
-    // small blind, which is the opposite of the usual order.
     getBlindSeats(state) {
-        const live = this.liveOrderFromButton(state);
-        const dealerIndex = state.dealerSeatIndex;
-
-        if (live.length < 2) {
-            return { dealerIndex, sbIndex: null, bbIndex: null, headsUp: false };
-        }
-
-        if (live.length === 2) {
-            const buttonIsPlaying = state.seats[dealerIndex].inHand;
-            const sbIndex = buttonIsPlaying ? dealerIndex : live[0];
-            const bbIndex = live.find(i => i !== sbIndex);
-            return { dealerIndex, sbIndex, bbIndex, headsUp: true };
-        }
-
-        return { dealerIndex, sbIndex: live[0], bbIndex: live[1], headsUp: false };
+        const sbIndex = this.nextSeatIndex(state, state.dealerSeatIndex, 1);
+        const bbIndex = this.nextSeatIndex(state, state.dealerSeatIndex, 2);
+        return { dealerIndex: state.dealerSeatIndex, sbIndex, bbIndex };
     },
 
     startNextHand(state) {