feat: Implement ASCII theme cycling and add quadrant theme support

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

apps/wolf_3d_cli/lib/cli_game_loop.dart

@@ -125,9 +125,36 @@ class CliGameLoop {
       return;
     }
 
+    if (bytes.contains(116) || bytes.contains(84)) {
+      _cycleAsciiTheme();
+      return;
+    }
+
     input.handleKey(bytes);
   }
 
+  void _cycleAsciiTheme() {
+    final List<AsciiRenderer> asciiRenderers = <AsciiRenderer>[
+      if (primaryRenderer is AsciiRenderer) primaryRenderer as AsciiRenderer,
+      if (secondaryRenderer is AsciiRenderer)
+        secondaryRenderer as AsciiRenderer,
+    ];
+    if (asciiRenderers.isEmpty) {
+      return;
+    }
+
+    final AsciiTheme nextTheme = AsciiThemes.nextOf(
+      asciiRenderers.first.activeTheme,
+    );
+    for (final renderer in asciiRenderers) {
+      renderer.activeTheme = nextTheme;
+    }
+
+    if (stdout.hasTerminal) {
+      stdout.write('\x1b[2J\x1b[H');
+    }
+  }
+
   void _tick(Timer timer) {
     if (!_isRunning) {
       return;