feat: replaced roulette wheel graphic with line-by-line 'spin'

1 files changed, 25 insertions, 2 deletions

diff --git a/internal/game/render_roulette.go b/internal/game/render_roulette.go
index 218a91f..a0f1e04 100644
--- a/internal/game/render_roulette.go
+++ b/internal/game/render_roulette.go
@@ -16,8 +16,10 @@ import (
 func renderRouletteSnapshot(s *casino.RouletteSnapshot, mode string, unicode bool, size int) string {
 	switch s.Phase {
 	case "playing":
-		// A blank line on either side keeps the wheel from crowding the prose.
-		return "\n" + renderRouletteWheel(s.Wheel, mode, unicode) + "\n"
+		if s.SpinFrame == 0 {
+			return ""
+		}
+		return renderRouletteSpin(s, mode, unicode)
 	case "result":
 		return "\n" + renderRouletteResult(s.Pockets, mode, unicode, size) + "\n"
 	default:
@@ -27,6 +29,27 @@ func renderRouletteSnapshot(s *casino.RouletteSnapshot, mode string, unicode boo
 	}
 }
 
+// A scrolling strip works in telnet scrollback without cursor-control escapes.
+func renderRouletteSpin(s *casino.RouletteSnapshot, mode string, unicode bool) string {
+	var line strings.Builder
+	for i, pocket := range s.SpinPockets {
+		fg, _ := roulettePocketColor(pocket)
+		if fg == 0 {
+			fg = 8 // visible charcoal rather than invisible black on a dark terminal
+		}
+		text := "█"
+		if !unicode {
+			text = "#"
+		}
+		if i == s.BallPosition {
+			line.WriteString(roulettePaint(mode, ".", fg))
+		} else {
+			line.WriteString(color.Render(mode, color.ColorSpec{Fg: fg, Bg: -1}, text))
+		}
+	}
+	return line.String()
+}
+
 func rouletteInk(mode, text string) string {
 	return color.Render(mode, color.ColorSpec{Fg: 15, Bg: -1}, text)
 }