fix: craps felt and wager description cleanup

1 files changed, 12 insertions, 6 deletions

diff --git a/internal/casino/house_edge_craps.go b/internal/casino/house_edge_craps.go
index 06a6629..6b86571 100644
--- a/internal/casino/house_edge_craps.go
+++ b/internal/casino/house_edge_craps.go
@@ -10,10 +10,10 @@ func crapsHouseEdge(cfg TableConfig, bet string) HouseEdge {
 	switch bet {
 	case "pass", "come", "dontpass", "dontcome":
 		return edge(-crapsContractEV(c, bet, 0))
-	case "odds pass", "odds come <n>", "odds dontpass", "odds dontcome <n>":
+	case "odds pass", "odds pass / come", "odds come <n>", "odds dontpass", "odds dont <n>", "odds dontcome <n>":
 		return edge(0)
 	case "buy <n>", "lay <n>":
-		e := HouseEdge{Note: "5% commission on wins, before upward credit rounding; small stakes cost more"}
+		e := HouseEdge{Note: "5% commission on wins only; bet multiples keep the vig whole"}
 		for _, n := range []int{2, 3, 4, 5, 6, 8, 9, 10, 11, 12} {
 			if !c.number(n) {
 				continue
@@ -25,16 +25,16 @@ func crapsHouseEdge(cfg TableConfig, bet string) HouseEdge {
 			e.Parts = append(e.Parts, EdgePart{strconv.Itoa(n), .05 * w / (w + 6)})
 		}
 		return e
-	case "hard 4 / hard 10":
+	case "hard 4/10", "hard 4 / hard 10":
 		return edge(-crapsResolvedEV(c, "hard", 4))
-	case "hard 6 / hard 8":
+	case "hard 6/8", "hard 6 / hard 8":
 		return edge(-crapsResolvedEV(c, "hard", 6))
 	case "eleven / ace-deuce":
 		return edge(-crapsResolvedEV(c, "eleven", 0))
 	case "aces / boxcars":
 		return edge(-crapsResolvedEV(c, "aces", 0))
 	case "hop <a> <b>":
-		return HouseEdge{Parts: []EdgePart{{"unequal dice", -crapsResolvedEV(c, "hop", 12)}, {"doubles", -crapsResolvedEV(c, "hop", 11)}}}
+		return HouseEdge{Parts: []EdgePart{{"", -crapsResolvedEV(c, "hop", 12)}, {"(doubles)", -crapsResolvedEV(c, "hop", 11)}}}
 	case "small / tall":
 		return edge(1 - 35*crapsCollectProbability([]int{2, 3, 4, 5, 6}))
 	case "all":
@@ -45,7 +45,13 @@ func crapsHouseEdge(cfg TableConfig, bet string) HouseEdge {
 		return edge(-crapsResolvedEV(c, bet, 0))
 	}
 	if strings.HasPrefix(bet, "place ") {
-		n, err := strconv.Atoi(strings.TrimPrefix(bet, "place "))
+		// Place rows group equal-payout numbers (4/10, 5/9, 6/8, and the
+		// crapless extras); any number in the group carries the same edge.
+		field := strings.TrimPrefix(bet, "place ")
+		if at := strings.IndexByte(field, '/'); at >= 0 {
+			field = field[:at]
+		}
+		n, err := strconv.Atoi(field)
 		if err == nil && c.number(n) {
 			return edge(-crapsResolvedEV(c, "place", n))
 		}