Break out spawnable entities and use a registry to spawn them.

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

lib/classes/decorative.dart

@@ -1,22 +0,0 @@
-import 'package:wolf_dart/classes/entity.dart';
-
-class Decorative extends Entity {
-  Decorative({
-    required super.x,
-    required super.y,
-    required super.spriteIndex,
-    required super.mapId,
-    super.state = EntityState.staticObj, // Defaults to static
-  });
-
-  // Checks if the Map ID belongs to a standard decoration
-  static bool isDecoration(int objId) {
-    return (objId >= 23 && objId <= 70) || objId == 124;
-  }
-
-  // Safely calculates the VSWAP sprite index for standard decorations
-  static int getSpriteIndex(int objId) {
-    if (objId == 124) return 95; // Dead guard
-    return objId - 21;
-  }
-}

lib/classes/difficulty.dart

@@ -1,12 +0,0 @@
-enum Difficulty {
-  canIPlayDaddy(0, "Can I play, Daddy?"),
-  dontHurtMe(1, "Don't hurt me."),
-  bringEmOn(2, "Bring em' on!"),
-  iAmDeathIncarnate(3, "I am Death incarnate!"),
-  ;
-
-  final String title;
-  final int level;
-
-  const Difficulty(this.level, this.title);
-}

lib/classes/enemy.dart

@@ -1,79 +0,0 @@
-import 'dart:math' as math;
-
-import 'package:wolf_dart/classes/entity.dart';
-import 'package:wolf_dart/classes/linear_coordinates.dart';
-
-abstract class Enemy extends Entity {
-  Enemy({
-    required super.x,
-    required super.y,
-    required super.spriteIndex,
-    super.angle,
-    super.state,
-    super.mapId,
-    super.lastActionTime,
-  });
-
-  // Decodes the Map ID to figure out which way the enemy is facing
-  static double getInitialAngle(int objId) {
-    int normalizedId = (objId - 108) % 36;
-    int direction = normalizedId % 4; // 0=East, 1=North, 2=West, 3=South
-
-    switch (direction) {
-      case 0:
-        return 0.0;
-      case 1:
-        return 3 * math.pi / 2;
-      case 2:
-        return math.pi;
-      case 3:
-        return math.pi / 2;
-      default:
-        return 0.0;
-    }
-  }
-
-  // The enemy can now check its own line of sight!
-  bool hasLineOfSight(
-    LinearCoordinates player,
-    bool Function(int x, int y) isWalkable,
-  ) {
-    double dx = player.x - x;
-    double dy = player.y - y;
-    double distance = math.sqrt(dx * dx + dy * dy);
-
-    // 1. FOV Check
-    double angleToPlayer = math.atan2(dy, dx);
-    double diff = angle - angleToPlayer;
-
-    while (diff <= -math.pi) {
-      diff += 2 * math.pi;
-    }
-    while (diff > math.pi) {
-      diff -= 2 * math.pi;
-    }
-
-    if (diff.abs() > math.pi / 2) return false;
-
-    // 2. Map Check
-    double dirX = dx / distance;
-    double dirY = dy / distance;
-    double stepSize = 0.2;
-    for (double i = 0; i < distance; i += stepSize) {
-      int checkX = (x + dirX * i).toInt();
-      int checkY = (y + dirY * i).toInt();
-
-      if (!isWalkable(checkX, checkY)) return false;
-    }
-
-    return true;
-  }
-
-  // Update signature is cleaner now
-  void update({
-    required int elapsedMs,
-    required LinearCoordinates player,
-    required bool Function(int x, int y) isWalkable,
-    required void Function(int damage) onDamagePlayer,
-  });
-}

lib/classes/entity.dart

@@ -1,21 +0,0 @@
-enum EntityState { staticObj, idle, patrolling, shooting, pain, dead }
-
-class Entity {
-  double x;
-  double y;
-  int spriteIndex;
-  double angle;
-  EntityState state;
-  int mapId;
-  int lastActionTime;
-
-  Entity({
-    required this.x,
-    required this.y,
-    required this.spriteIndex,
-    this.angle = 0.0,
-    this.state = EntityState.staticObj,
-    this.mapId = 0,
-    this.lastActionTime = 0,
-  });
-}

lib/classes/sprite.dart

@@ -1 +0,0 @@
-typedef Sprite = ({double x, double y, int spriteIndex});