Added ability to swap between ASCII and sixel renderers when pressing tab

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

apps/wolf_3d_cli/bin/main.dart

@@ -36,12 +36,9 @@ void main() async {
     recursive: true,
   );
 
-  final data = availableGames.values.first;
-
-  final input = CliInput();
-  final cliAudio = CliSilentAudio();
-
-  final rasterizer = AsciiRasterizer(isTerminal: true);
+  final AsciiRasterizer asciiRasterizer = AsciiRasterizer(isTerminal: true);
+  final SixelRasterizer sixelRasterizer = SixelRasterizer();
+  Rasterizer rasterizer = sixelRasterizer;
 
   FrameBuffer buffer = FrameBuffer(
     stdout.terminalColumns,
@@ -49,11 +46,11 @@ void main() async {
   );
 
   final engine = WolfEngine(
-    data: data,
+    data: availableGames.values.first,
     difficulty: Difficulty.medium,
     startingEpisode: 0,
-    audio: cliAudio,
-    input: input,
+    audio: CliSilentAudio(),
+    input: CliInput(),
     onGameWon: () {
       exitCleanly(0);
       print("YOU WON!");
@@ -67,7 +64,15 @@ void main() async {
       exitCleanly(0);
     }
 
-    input.handleKey(bytes);
+    if (bytes.contains(9)) {
+      rasterizer = identical(rasterizer, sixelRasterizer)
+          ? asciiRasterizer
+          : sixelRasterizer;
+      stdout.write('\x1b[2J\x1b[H');
+      return;
+    }
+
+    (engine.input as CliInput).handleKey(bytes);
   });
 
   Stopwatch stopwatch = Stopwatch()..start();
@@ -78,13 +83,11 @@ void main() async {
     if (stdout.hasTerminal) {
       int cols = stdout.terminalColumns;
       int rows = stdout.terminalLines;
-      if (cols < 80 || rows < 24) {
+      if (!rasterizer.isTerminalSizeSupported(cols, rows)) {
         // Clear the screen and print the warning at the top left
         stdout.write('\x1b[2J\x1b[H');
         stdout.write('\x1b[31m[ ERROR ] TERMINAL TOO SMALL\x1b[0m\n\n');
-        stdout.write(
-          'Wolfenstein 3D requires a minimum resolution of 120x40.\n',
-        );
+        stdout.write('${rasterizer.terminalSizeRequirement}\n');
         stdout.write(
           'Current size: \x1b[33m${stdout.terminalColumns}x${stdout.terminalLines}\x1b[0m\n\n',
         );
@@ -110,8 +113,7 @@ void main() async {
 
     engine.tick(elapsed);
     rasterizer.render(engine, buffer);
-    rasterizer.finalizeFrame();
 
-    stdout.write(rasterizer.toAnsiString());
+    stdout.write(rasterizer.finalizeFrame());
   });
 }