Added difficulty screen

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

lib/features/renderer/renderer.dart

@@ -3,9 +3,10 @@ import 'dart:math' as math;
 import 'package:flutter/material.dart';
 import 'package:flutter/scheduler.dart';
 import 'package:flutter/services.dart';
+import 'package:wolf_dart/classes/difficulty.dart';
+import 'package:wolf_dart/classes/entity.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/map/wolf_map.dart';
 import 'package:wolf_dart/features/renderer/raycast_painter.dart';
 import 'package:wolf_dart/sprite_gallery.dart';
@@ -13,10 +14,12 @@ import 'package:wolf_dart/sprite_gallery.dart';
 class WolfRenderer extends StatefulWidget {
   const WolfRenderer({
     super.key,
+    required this.difficulty,
     this.showSpriteGallery = false,
     this.isDemo = true,
   });
 
+  final Difficulty difficulty;
   final bool showSpriteGallery;
   final bool isDemo;
 
@@ -39,7 +42,7 @@ class _WolfRendererState extends State<WolfRenderer>
   bool _isLoading = true;
   bool _spaceWasPressed = false;
 
-  List<Sprite> entities = [];
+  List<Entity> entities = [];
 
   // Track door animations
   // Key is "X,Y" coordinate. Value is how far open it is (0.0 to 1.0)
@@ -83,23 +86,43 @@ class _WolfRendererState extends State<WolfRenderer>
         // NEW: Populate the Entities!
         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,
-            ));
+            entities.add(
+              Entity(
+                x: x + 0.5,
+                y: y + 0.5,
+                spriteIndex: calculatedSpriteIndex,
+                state: EntityState.staticObj,
+                mapId: objId,
+              ),
+            );
           }
-        } else if (objId == 124) {
+        }
+        // NEW: The Dead Guard (FIXED INDEX)
+        else if (objId == 124) {
           if (95 < gameMap.sprites.length) {
-            entities.add((
-              x: x + 0.5,
-              y: y + 0.5,
-              spriteIndex: 95,
-            ));
+            entities.add(
+              Entity(
+                x: x + 0.5,
+                y: y + 0.5,
+                spriteIndex: 95,
+                state: EntityState.dead,
+                mapId: objId,
+              ),
+            );
+          }
+        } else if (_isGuardForDifficulty(objId)) {
+          if (50 < gameMap.sprites.length) {
+            entities.add(
+              Entity(
+                x: x + 0.5,
+                y: y + 0.5,
+                spriteIndex: 50, // Front-facing Brown Guard
+                state: EntityState.idle,
+                mapId: objId,
+              ),
+            );
           }
         }
       }
@@ -260,6 +283,21 @@ class _WolfRendererState extends State<WolfRenderer>
     setState(() {});
   }
 
+  bool _isGuardForDifficulty(int objId) {
+    switch (widget.difficulty.level) {
+      case 0: // Baby
+        return objId >= 108 && objId <= 115;
+      case 1: // Easy
+        return objId >= 144 && objId <= 151;
+      case 2: // Normal
+        return objId >= 180 && objId <= 187;
+      case 3: // Hard
+        return objId >= 216 && objId <= 223;
+      default:
+        return false;
+    }
+  }
+
   @override
   Widget build(BuildContext context) {
     if (_isLoading) {