diff --git a/src/tower.py b/src/tower.py
index 04baaad..0e30247 100644
--- a/src/tower.py
+++ b/src/tower.py
@@ -32,7 +32,7 @@ class Tower:
                 self.field_rect = rect
                 return
 
-        def try_build(self, player_rect: pygame.Rect, keys: pygame.key.ScancodeWrapper, ects):
+    def try_build(self, player_rect: pygame.Rect, keys: pygame.key.ScancodeWrapper, ects):
 
             # Baut Tower wenn Spieler E drückt, auf Feld steht und genug ects hat
             if not self.field.rect or self.tower.rect:
@@ -46,6 +46,34 @@ class Tower:
             self.tower_start = pygame.time.get_ticks()
             return True
 
+    def update(self, player_rect: pygame.Rect, keys: pygame.key.ScancodeWrapper, ects, monster_rect: pygame.Rect, room_rect: pygame.Rect, blocked_rects: list[pygame.Rect]):
+
+        # ruft jeden Frame auf und gibt den Schaden auf Monster zurück
+        now = pygame.time.get_ticks()
+        total_damage = 0
+
+        self.try_build(player_rect, keys, ects)
+
+        # schießen dann, wenn Tower und Monster vorhanden sind
+        if self.tower_rect and monster_rect:
+            if now - self.last_shot >= fire_interval:
+                dx = monster_rect.centerx - self.tower_rect.centerx
+                dy = monster_rect.centery - self.tower_rect.centery
+                distance = math.sqrt(dx * dx + dy * dy) or 1
+                self.projectiles.append({
+                    "x": float(self.tower_rect.centerx),
+                    "y": float(self.tower_rect.centery),
+                    "vel_x": (dx / distance) * PROJECTILE_SPEED,
+                    "vel_y": (dy / distance) * PROJECTILE_SPEED,
+                })
+
+                self.last_shot = now
+
+
+
+
+
+