From f9e4f083639e79670c04613211e04f11285f30b5 Mon Sep 17 00:00:00 2001
From: Hans Kokx <hans.d.kokx@gmail.com>
Date: Tue, 17 Mar 2026 23:12:35 +0100
Subject: [PATCH] Added ability to switch ascii themes by pressing tab

Signed-off-by: Hans Kokx <hans.d.kokx@gmail.com>
---
 apps/wolf_3d_cli/bin/main.dart                |  6 ++++++
 .../engine/rasterizer/ascii_rasterizer.dart   | 19 +++++++++++++++----
 2 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/apps/wolf_3d_cli/bin/main.dart b/apps/wolf_3d_cli/bin/main.dart
index 0c62b29..5bbd6c5 100644
--- a/apps/wolf_3d_cli/bin/main.dart
+++ b/apps/wolf_3d_cli/bin/main.dart
@@ -66,6 +66,12 @@ void main() async {
     if (bytes.contains(113) || bytes.contains(27)) {
       exitCleanly(0);
     }
+
+    if (bytes.contains(9)) {
+      rasterizer.activeTheme = AsciiThemes.nextOf(rasterizer.activeTheme);
+      print("Switched to ${rasterizer.activeTheme.name} theme!");
+    }
+
     input.handleKey(bytes);
   });
 
diff --git a/packages/wolf_3d_dart/lib/src/engine/rasterizer/ascii_rasterizer.dart b/packages/wolf_3d_dart/lib/src/engine/rasterizer/ascii_rasterizer.dart
index 10d1367..578e924 100644
--- a/packages/wolf_3d_dart/lib/src/engine/rasterizer/ascii_rasterizer.dart
+++ b/packages/wolf_3d_dart/lib/src/engine/rasterizer/ascii_rasterizer.dart
@@ -5,10 +5,12 @@ import 'package:wolf_3d_dart/wolf_3d_data_types.dart';
 import 'package:wolf_3d_dart/wolf_3d_engine.dart';
 
 class AsciiTheme {
+  final String name;
+
   /// The character ramp, ordered from most dense (index 0) to least dense (last index).
   final String ramp;
 
-  const AsciiTheme(this.ramp);
+  const AsciiTheme(this.name, this.ramp);
 
   /// Always returns the densest character (e.g., for walls, UI, floors)
   String get solid => ramp[0];
@@ -27,9 +29,18 @@ class AsciiTheme {
 
 /// A collection of pre-defined character sets
 abstract class AsciiThemes {
-  static const AsciiTheme blocks = AsciiTheme("█▓▒░ ");
-  static const AsciiTheme classic = AsciiTheme("@%#*+=-:. ");
-  static const AsciiTheme dense = AsciiTheme("█▇▆▅▄▃▂  ");
+  static const AsciiTheme blocks = AsciiTheme('Blocks', "█▓▒░ ");
+  static const AsciiTheme classic = AsciiTheme('Classic', "@%#*+=-:. ");
+
+  static const List<AsciiTheme> values = [blocks, classic];
+
+  static AsciiTheme nextOf(AsciiTheme current) {
+    final int currentIndex = values.indexOf(current);
+    final int nextIndex = currentIndex == -1
+        ? 0
+        : (currentIndex + 1) % values.length;
+    return values[nextIndex];
+  }
 }
 
 class ColoredChar {