fix: tiny map alignment broke with certain characters

1 files changed, 48 insertions, 0 deletions

diff --git a/internal/game/look_alignment_test.go b/internal/game/look_alignment_test.go
new file mode 100644
index 0000000..42af09a
--- /dev/null
+++ b/internal/game/look_alignment_test.go
@@ -0,0 +1,48 @@
+package game
+
+import (
+	"strings"
+	"testing"
+
+	"thehouseoficarus/internal/color"
+	"thehouseoficarus/internal/net"
+	"thehouseoficarus/internal/player"
+)
+
+func TestLookMiniMapAlignment(t *testing.T) {
+	for _, side := range []string{"right", "left"} {
+		for _, colored := range []bool{false, true} {
+			t.Run(side+map[bool]string{false: "/plain", true: "/colored"}[colored], func(t *testing.T) {
+				p := player.New("alice")
+				p.Options = map[string]any{"tiny_map": side, "wrap_width": 80}
+				conn := &casinoTestConn{}
+				sess := &net.Session{Player: p, Conn: conn}
+				content := wrapText("A ceiling of tiny brass suns hangs over polished stone. Icarus Leisure’s emblem repeats on every column. Stairs and galleries are open to all visitors.", 71)
+				if colored {
+					for i := range content {
+						content[i] = color.Render("xterm256", color.ColorSpec{Fg: 42, Bg: -1}, content[i])
+					}
+				}
+				mapLines := []string{"╔═════╗", "║□-□-□║", "║   ↑ ║", "║  @  ║", "║  │  ║", "║  ■  ║", "╚═════╝"}
+				(&Game{}).writeLookSideBySide(sess, p, content, mapLines, 71)
+				lines := strings.Split(strings.TrimSuffix(string(conn.data), "\r\n"), "\r\n")
+				if len(lines) != len(mapLines) {
+					t.Fatalf("got %d lines, want %d: %q", len(lines), len(mapLines), conn.data)
+				}
+				for i, line := range lines {
+					index := strings.Index(line, mapLines[i])
+					if index < 0 {
+						t.Fatalf("line %d missing map row: %q", i, line)
+					}
+					want := 73
+					if side == "left" {
+						want = 0
+					}
+					if got := visibleLen(line[:index]); got != want {
+						t.Errorf("line %d: map column = %d, want %d", i, got, want)
+					}
+				}
+			})
+		}
+	}
+}