feat: map implemented with BFS

1 files changed, 94 insertions, 0 deletions

diff --git a/internal/game/map_test.go b/internal/game/map_test.go
new file mode 100644
index 0000000..a50c2c2
--- /dev/null
+++ b/internal/game/map_test.go
@@ -0,0 +1,94 @@
+package game
+
+import (
+	"strings"
+	"testing"
+
+	"thirdcollapse/internal/world"
+)
+
+func TestBuildTinyMap(t *testing.T) {
+	g := &Game{
+		World:    world.New("../../data"),
+		MapWidth: 70,
+	}
+
+	tests := []struct {
+		name   string
+		roomID int
+		want   []string // expected lines, or nil to just check count
+	}{
+		{
+			name:   "room 1 has east exit",
+			roomID: 1,
+		},
+		{
+			name:   "room 2 has west/north/east",
+			roomID: 2,
+		},
+		{
+			name:   "room 4 has west/north/east",
+			roomID: 4,
+		},
+		{
+			name:   "room 21 has west only",
+			roomID: 21,
+		},
+		{
+			name:   "room 22 west of town square",
+			roomID: 22,
+		},
+		{
+			name:   "room 25 east of south of west",
+			roomID: 25,
+		},
+		{
+			name:   "room 8 hacking lab",
+			roomID: 8,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			lines := buildTinyMap(g, tt.roomID)
+			if len(lines) != 7 {
+				t.Fatalf("expected 7 lines, got %d", len(lines))
+			}
+			if lines[0] != "╔═════╗" {
+				t.Errorf("line 0: want ╔═════╗, got %s", lines[0])
+			}
+			if lines[6] != "╚═════╝" {
+				t.Errorf("line 6: want ╚═════╝, got %s", lines[6])
+			}
+			for i := 1; i <= 5; i++ {
+				if !strings.HasPrefix(lines[i], "║") || !strings.HasSuffix(lines[i], "║") {
+					t.Errorf("line %d: should have ║ borders, got %s", i, lines[i])
+				}
+				if len([]rune(lines[i])) != 7 {
+					t.Errorf("line %d: expected 7 runes, got %d in %q", i, len([]rune(lines[i])), lines[i])
+				}
+			}
+			t.Logf("Room %d map:\n%s", tt.roomID, strings.Join(lines, "\n"))
+		})
+	}
+}
+
+func TestWrapText(t *testing.T) {
+	tests := []struct {
+		text  string
+		width int
+		want  int // expected number of lines
+	}{
+		{"hello world", 70, 1},
+		{"hello world", 5, 2},
+		{"", 70, 0},
+		{"a b c d e f g h i j", 5, 4},
+	}
+
+	for _, tt := range tests {
+		result := wrapText(tt.text, tt.width)
+		if len(result) != tt.want {
+			t.Errorf("wrapText(%q, %d) = %d lines, want %d: %v", tt.text, tt.width, len(result), tt.want, result)
+		}
+	}
+}