diff --git a/.env b/.env
index e69de29..700bd73 100644
--- a/.env
+++ b/.env
@@ -0,0 +1,5 @@
+WINDOW_WIDTH=800
+WINDOW_HEIGHT=600
+FPS=60
+ORBIT_RADIUS=160
+ANGULAR_SPEED=0.8
diff --git a/apollo.py b/apollo.py
index 642cf93..2bc2e39 100644
--- a/apollo.py
+++ b/apollo.py
@@ -1,40 +1,23 @@
-# apollo.py
 from moon import Moon
 from compute import rotation_matrix, apply_mat_to_vec, add
 import pygame
 import math
 
 class Apollo(Moon):
-    """
-    Erweiterung der Moon-Klasse:
-    Zeigt zusätzlich ein Raumschiff (Apollo), das die Erde umkreist.
-    """
-
     def __init__(self):
-        # Ruft alles aus Moon.__init__ auf → Fenster, Farben, Erde, Mond
-        super().__init__()
-
-        # Neue Eigenschaften nur für Apollo
+        super().__init__() #Fenster
         self.ship_radius = 6
         self.ship_distance = self.orbit_radius + 40  # etwas weiter außen
-        self.ship_color = (255, 180, 0)  # orange-gelb (Rakete)
+        self.ship_color = (255, 180, 0)
 
     def draw(self, screen: pygame.Surface) -> None:
-        # 1️⃣ Alles aus Moon zeichnen (Erde + Mond)
         super().draw(screen)
-
-        # 2️⃣ Dann die Rakete dazuzeichnen
         v0 = (float(self.ship_distance), 0.0)
-
-        # leicht andere Drehgeschwindigkeit
-        R = rotation_matrix(self.angle * 1.3)
+        R = rotation_matrix(self.angle * 1.3)    #geschwindigkeit
         v_rot = apply_mat_to_vec(R, v0)
         pos = add(self.center, v_rot)
-
-        # Raumschiff zeichnen (kleiner Kreis)
         pygame.draw.circle(screen, self.ship_color, (int(pos[0]), int(pos[1])), self.ship_radius)
 
 
-# wenn du apollo.py startest
 if __name__ == "__main__":
     Apollo().run()
diff --git a/moon.py b/moon.py
index 12f6424..d1d0600 100644
--- a/moon.py
+++ b/moon.py
@@ -1,57 +1,42 @@
-# moon.py
+from dotenv import load_dotenv
+import os
+
+load_dotenv()  # lädt .env beim Start
+
 import math
 import pygame
 from compute import rotation_matrix, apply_mat_to_vec, add
-from game import Game   # <- euer Framework aus Semester 1
+from game import Game
 
 class Moon(Game):
-    """
-    Animation: Blauer Kreis (Erde) im Ursprung, weißer Kreis (Mond) kreist darum.
-    Mathe (Rotation etc.) liegt komplett in compute.py.
-    """
-    def __init__(self, width: int = 800, height: int = 600, fps: int = 60):
+    def __init__(self):
+       #.env
+        width = int(os.getenv("WINDOW_WIDTH", "800"))
+        height = int(os.getenv("WINDOW_HEIGHT", "600"))
+        fps = int(os.getenv("FPS", "60"))
+
         super().__init__(width, height, fps, title="Moon – Orbit Demo")
-
-        # „Ursprung“ = Bildschirmmitte (damit Erde bei (0,0) in unserer Welt liegt)
-        self.center = (width // 2, height // 2)
-
-        # Darstellung
-        self.earth_radius = 32
-        self.moon_radius  = 12
-        self.orbit_radius = 160  # Abstand Erde–Mond in Pixeln (optisch ansprechend)
-
-        # Bewegung
-        self.angular_speed = 0.8  # rad/s (Geschwindigkeit der Umlaufbahn)
-        self.angle = 0.0          # aktueller Winkel in rad
-
-        # Farben
-        self.bg_color    = (10, 10, 25)
-        self.earth_color = (60, 120, 255)   # blau
-        self.moon_color  = (245, 245, 245)  # weiß
+        self.center = (width // 2, height // 2) #mittelpunlt
+        self.earth_radius = 32 #Darstellung
+        self.moon_radius = 12
+        self.orbit_radius = int(os.getenv("ORBIT_RADIUS", "160"))  # neu
+        self.angular_speed = float(os.getenv("ANGULAR_SPEED", "0.8"))  # neu
+        self.angle = 0.0
+        self.bg_color = (10, 10, 25)
+        self.earth_color = (60, 120, 255)
+        self.moon_color = (245, 245, 245)
 
     def update(self, dt: float) -> None:
-        """Zeitentwicklung: Winkel erhöhen (dt in Sekunden)."""
         self.angle = (self.angle + self.angular_speed * dt) % (2 * math.pi)
 
     def draw(self, screen: pygame.Surface) -> None:
-        """Szene rendern."""
         screen.fill(self.bg_color)
-
-        # Erde im „Ursprung“ (hier: Bildschirmmitte)
-        pygame.draw.circle(screen, self.earth_color, self.center, self.earth_radius)
-
-        # Startvektor des Mondes (auf x-Achse, Länge = orbit_radius)
-        v0 = (float(self.orbit_radius), 0.0)
-
-        # Rotierter Vektor: v = R(angle) * v0
-        R = rotation_matrix(self.angle)
+        pygame.draw.circle(screen, self.earth_color, self.center, self.earth_radius) #Erde
+        v0 = (float(self.orbit_radius), 0.0) #start
+        R = rotation_matrix(self.angle) #rotierter vektor
         v_rot = apply_mat_to_vec(R, v0)
-
-        # In Bildschirmkoordinaten verschieben: (0,0) Welt -> center Screen
         pos = add(self.center, v_rot)
-
-        # Mond zeichnen
-        pygame.draw.circle(screen, self.moon_color, (int(pos[0]), int(pos[1])), self.moon_radius)
+        pygame.draw.circle(screen, self.moon_color, (int(pos[0]), int(pos[1])), self.moon_radius)  #mOnd zeichenn
 
 if __name__ == "__main__":
     Moon().run()
diff --git a/requirements.txt b/requirements.txt
index e69de29..2d0d32a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -0,0 +1,3 @@
+pygame
+
+python-dotenv