feat: better roulette racetrack graphics and payout table

1 files changed, 8 insertions, 10 deletions

diff --git a/internal/casino/roulette_racetrack.go b/internal/casino/roulette_racetrack.go
index 624940b..9784d9a 100644
--- a/internal/casino/roulette_racetrack.go
+++ b/internal/casino/roulette_racetrack.go
@@ -23,7 +23,7 @@ func (s rouletteShare) payout(stake int) (int, error) {
 	if stake <= 0 || s.num <= 0 || s.den <= 0 {
 		return 0, nil
 	}
-	if limit := MaxCredits * s.den / s.num; stake > limit {
+	if limit := ((MaxCredits+1)*s.den - 1) / s.num; stake > limit {
 		return MaxCredits, fmt.Errorf("payout overflow: %d * %d/%d exceeds %d", stake, s.num, s.den, MaxCredits)
 	}
 	return stake * s.num / s.den, nil
@@ -96,8 +96,8 @@ func RacetrackBets() []RacetrackBetView {
 
 // The four standard single-zero call bets. Chip placements and payouts follow
 // the traditional layout: Voisins (9 chips), Tiers (6), Orphelins (5) and
-// Zero Spiel (4). Every inside component returns 36/covered, so the combined
-// wager keeps the wheel's normal house edge.
+// Jeu Zero (4). Every inside component returns 36/covered, so the combined
+// wager keeps the wheel's normal house edge before whole-credit rounding.
 var rouletteCallBets = []rouletteCallBet{
 	{
 		canonical: "voisins",
@@ -142,8 +142,8 @@ var rouletteCallBets = []rouletteCallBet{
 		},
 	},
 	{
-		canonical: "zerospiel",
-		name:      "Zero Spiel",
+		canonical: "jeuzero",
+		name:      "Jeu Zero",
 		chips:     4,
 		series:    []string{"12", "35", "3", "26", "0", "32", "15"},
 		parts: []rouletteComponent{
@@ -171,11 +171,9 @@ var rouletteCallAliases = map[string]string{
 	"orphelins":              "orphelins",
 	"orphans":                "orphelins",
 	"les orphelins":          "orphelins",
-	"zero spiel":             "zerospiel",
-	"zerospiel":              "zerospiel",
-	"spiel":                  "zerospiel",
-	"jeu zero":               "zerospiel",
-	"zero game":              "zerospiel",
+	"zero":                   "jeuzero",
+	"jeu zero":               "jeuzero",
+	"jeuzero":                "jeuzero",
 }
 
 // neighborsRadius is how many pockets on each side of the chosen number the