Fix some enemy stuff

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

lib/features/entities/enemies/enemy.dart

@@ -16,6 +16,7 @@ abstract class Enemy extends Entity {
 
   // Standard guard health
   int health = 25;
+  int damage = 10;
   bool isDying = false;
 
   void takeDamage(int amount, int currentTime) {
@@ -106,7 +107,7 @@ abstract class Enemy extends Entity {
     return true;
   }
 
-  void update({
+  ({Coordinate2D movement, double newAngle}) update({
     required int elapsedMs,
     required Coordinate2D playerPosition,
     required bool Function(int x, int y) isWalkable,