1 files changed, 60 insertions, 0 deletions
diff --git a/internal/casino/betting.go b/internal/casino/betting.go
new file mode 100644
index 0000000..3ffee88
--- /dev/null
+++ b/internal/casino/betting.go
@@ -0,0 +1,60 @@
+package casino
+
+// countdown tracks tick-based deadlines for table phases (betting windows,
+// insurance offers, and player action timeouts).
+type countdown struct {
+	clock    int
+	deadline int
+}
+
+func (c *countdown) start(ticks int) { c.clock, c.deadline = 0, ticks }
+func (c *countdown) stop()           { c.clock, c.deadline = 0, 0 }
+func (c *countdown) tick()           { c.clock++ }
+func (c *countdown) expired() bool   { return c.deadline > 0 && c.clock >= c.deadline }
+
+// allBet reports whether at least one connected participant exists and every
+// connected participant has placed a bet. Disconnected participants never
+// hold a round open.
+func allBet(seats []*Participant) bool {
+	connected := false
+	for _, p := range seats {
+		if !p.Connected {
+			continue
+		}
+		connected = true
+		if !p.HasBet {
+			return false
+		}
+	}
+	return connected
+}
+
+// anyBet reports whether any participant, connected or not, has a wager
+// committed to the current round.
+func anyBet(seats []*Participant) bool {
+	for _, p := range seats {
+		if p.HasBet {
+			return true
+		}
+	}
+	return false
+}
+
+// sitOutNames lists participants without a bet, in seat order.
+func sitOutNames(seats []*Participant) []string {
+	var names []string
+	for _, p := range seats {
+		if !p.HasBet {
+			names = append(names, p.Name)
+		}
+	}
+	return names
+}
+
+// clearBets resets per-round betting state on every participant.
+func clearBets(seats []*Participant) {
+	for _, p := range seats {
+		p.HasBet = false
+		p.Wager = Wager{}
+	}
+}