feat: Implement ASCII theme cycling and add quadrant theme support

Signed-off-by: Hans Kokx <hans.d.kokx@gmail.com>

packages/wolf_3d_renderer/lib/wolf_3d_ascii_renderer.dart

@@ -7,9 +7,12 @@ import 'package:wolf_3d_renderer/base_renderer.dart';
 
 /// Displays the game using a text-mode approximation of the original renderer.
 class WolfAsciiRenderer extends BaseWolfRenderer {
+  final AsciiTheme theme;
+
   /// Creates an ASCII renderer bound to [engine].
   const WolfAsciiRenderer({
     required super.engine,
+    this.theme = AsciiThemes.blocks,
     super.onKeyEvent,
     super.key,
   });
@@ -30,6 +33,7 @@ class _WolfAsciiRendererState extends BaseWolfRendererState<WolfAsciiRenderer> {
   @override
   void initState() {
     super.initState();
+    _asciiRenderer.activeTheme = widget.theme;
     // ASCII output uses a reduced logical framebuffer because glyph rendering
     // expands the final view significantly once laid out in Flutter text.
     if (widget.engine.frameBuffer.width != _renderWidth ||
@@ -38,6 +42,14 @@ class _WolfAsciiRendererState extends BaseWolfRendererState<WolfAsciiRenderer> {
     }
   }
 
+  @override
+  void didUpdateWidget(covariant WolfAsciiRenderer oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    if (oldWidget.theme != widget.theme) {
+      _asciiRenderer.activeTheme = widget.theme;
+    }
+  }
+
   @override
   Color get scaffoldColor => widget.engine.difficulty == null
       ? _colorFromRgb(widget.engine.menuBackgroundRgb)