Fixed sprite lookups

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

lib/features/map/vswap_parser.dart

@@ -43,7 +43,7 @@ class VswapParser {
   /// Extracts the compiled scaled sprites from VSWAP.WL1
   static List<Matrix<int>> parseSprites(ByteData vswap) {
     int chunks = vswap.getUint16(0, Endian.little);
-    int spriteStart = vswap.getUint16(2, Endian.little); // 64
+    int spriteStart = vswap.getUint16(2, Endian.little);
     int soundStart = vswap.getUint16(4, Endian.little);
 
     List<int> offsets = [];

lib/features/map/wolf_map.dart

@@ -18,7 +18,7 @@ class WolfMap {
   );
 
   /// Asynchronously loads the map files and parses them into a new WolfMap instance.
-  static Future<WolfMap> load() async {
+  static Future<WolfMap> loadDemo() async {
     // 1. Load the binary data
     final mapHead = await rootBundle.load("assets/MAPHEAD.WL1");
     final gameMaps = await rootBundle.load("assets/GAMEMAPS.WL1");
@@ -36,4 +36,24 @@ class WolfMap {
       parsedSprites,
     );
   }
+
+  /// Asynchronously loads the map files and parses them into a new WolfMap instance.
+  static Future<WolfMap> load() async {
+    // 1. Load the binary data
+    final mapHead = await rootBundle.load("assets/MAPHEAD.WL6");
+    final gameMaps = await rootBundle.load("assets/GAMEMAPS.WL6");
+    final vswap = await rootBundle.load("assets/VSWAP.WL6");
+
+    // 2. Parse the data using the parser we just built
+    final parsedLevels = WolfMapParser.parseMaps(mapHead, gameMaps);
+    final parsedTextures = VswapParser.parseWalls(vswap);
+    final parsedSprites = VswapParser.parseSprites(vswap);
+
+    // 3. Return the populated instance!
+    return WolfMap._(
+      parsedLevels,
+      parsedTextures,
+      parsedSprites,
+    );
+  }
 }

lib/features/renderer/raycast_painter.dart

@@ -1,10 +1,10 @@
 import 'dart:math' as math;
 
 import 'package:flutter/material.dart';
-import 'package:wolf_dart/classes/color_palette.dart';
 import 'package:wolf_dart/classes/linear_coordinates.dart';
 import 'package:wolf_dart/classes/matrix.dart';
 import 'package:wolf_dart/classes/sprite.dart';
+import 'package:wolf_dart/features/renderer/color_palette.dart';
 
 class RaycasterPainter extends CustomPainter {
   final Matrix<int> map;
@@ -209,10 +209,8 @@ class RaycasterPainter extends CustomPainter {
           // THE Z-BUFFER CHECK!
           // Only draw if the sprite is closer to the camera than the wall at this pixel column
           if (transformY < zBuffer[stripe]) {
-            int texX = ((stripe - drawStartX) * 64 / spriteWidth).toInt().clamp(
-              0,
-              63,
-            );
+            double texXDouble = (stripe - drawStartX) * 64 / spriteWidth;
+            int texX = texXDouble.toInt().clamp(0, 63);
 
             double startY = (size.height / 2) - (spriteHeight / 2);
             double stepY = spriteHeight / 64.0;

lib/features/renderer/renderer.dart

@@ -49,34 +49,18 @@ class _WolfRendererState extends State<WolfRenderer>
   @override
   void initState() {
     super.initState();
-    _initGame();
+    _initGame(demo: widget.isDemo);
   }
 
-  Future<void> _initGame() async {
-    // 1. Load the entire WAD/WL1 data
-    gameMap = await WolfMap.load();
+  Future<void> _initGame({bool demo = true}) async {
+    // 1. Load the entire WL1 (demo)/WL6 (retail) data
+    gameMap = demo ? await WolfMap.loadDemo() : await WolfMap.load();
 
     // 2. Extract Level 1 (E1M1)
     currentLevel = gameMap.levels[0].wallGrid;
 
     final Matrix<int> objectLevel = gameMap.levels[0].objectGrid;
 
-    // Adjusted mapping for WL1 Shareware
-    // These numbers represent the delta from the FIRST sprite chunk in VSWAP
-    Map<int, int> staticObjects = {
-      23: widget.isDemo ? 0 : 23, // Water Puddle
-      24: widget.isDemo ? 1 : 24, // Green Barrel
-      25: widget.isDemo ? 2 : 25, // Chairs
-      26: widget.isDemo ? 3 : 26, // Green Plant
-      27: widget.isDemo ? 4 : 27, // Skeleton / Bones
-      28: widget.isDemo ? 5 : 28, // Blue Lamp
-      29: widget.isDemo ? 6 : 29, // Chandelier
-      30: widget.isDemo ? 7 : 30, // Dog food
-      31: widget.isDemo ? 8 : 31, // White pillar
-      32: widget.isDemo ? 9 : 32, // Hanged man
-      50: widget.isDemo ? 42 : 95, // Standing Guard (Front-facing frame)
-    };
-
     // 1. SCAN FOR PLAYER SPAWN & ENTITIES
     for (int y = 0; y < 64; y++) {
       for (int x = 0; x < 64; x++) {
@@ -97,12 +81,26 @@ class _WolfRendererState extends State<WolfRenderer>
           }
         }
         // NEW: Populate the Entities!
-        else if (staticObjects.containsKey(objId)) {
-          entities.add((
-            x: x + 0.5,
-            y: y + 0.5,
-            spriteIndex: staticObjects[objId]!,
-          ));
+        else if (objId >= 23 && objId <= 70) {
+          int calculatedSpriteIndex = objId - 21;
+
+          // Safety bounds check to prevent crashes on custom/corrupt maps
+          if (calculatedSpriteIndex >= 0 &&
+              calculatedSpriteIndex < gameMap.sprites.length) {
+            entities.add((
+              x: x + 0.5,
+              y: y + 0.5,
+              spriteIndex: calculatedSpriteIndex,
+            ));
+          }
+        } else if (objId == 124) {
+          if (95 < gameMap.sprites.length) {
+            entities.add((
+              x: x + 0.5,
+              y: y + 0.5,
+              spriteIndex: 95,
+            ));
+          }
         }
       }
     }

lib/main.dart

@@ -6,7 +6,7 @@ void main() {
     const MaterialApp(
       home: WolfRenderer(
         showSpriteGallery: false,
-        isDemo: true,
+        isDemo: false,
       ),
     ),
   );

lib/sprite_gallery.dart

@@ -1,6 +1,6 @@
 import 'package:flutter/material.dart';
-import 'package:wolf_dart/classes/color_palette.dart';
 import 'package:wolf_dart/classes/matrix.dart';
+import 'package:wolf_dart/features/renderer/color_palette.dart';
 
 class SpriteGallery extends StatelessWidget {
   final List<Matrix<int>> sprites;