diff --git a/main.py b/main.py
index fd16065..46f3430 100644
--- a/main.py
+++ b/main.py
@@ -1,42 +1,45 @@
 import pygame
 from random import randint as ri
 def scale(vaktor):
-    scaledx = dvdsizex*vaktor
-    scaledy = dvdsizey*vaktor
+    scaledx = dvdsize[0]*vaktor
+    scaledy = dvdsize[1]*vaktor
     return (scaledx,scaledy)
 pygame.init()
+default_font = pygame.font.SysFont("sans", 14)
 
-is_fullscreen = True
+is_fullscreen = False
 fill_screen = True
+show_debug = False
 screen = pygame.display.set_mode((0,0),pygame.FULLSCREEN)
 pygame.display.set_caption("Screensaver")
-x,y = pygame.display.get_window_size()
+screensize = pygame.display.get_window_size()
 
 clock = pygame.time.Clock()
 
 dvd = pygame.image.load("dvd-logo.png")
-dvdsizex,dvdsizey = dvd.get_size()
+dvdsize = dvd.get_size()
 
 dvdscale = 1
 dvdscalesize = scale(dvdscale)
 dvdscaled = pygame.transform.scale(dvd,dvdscalesize)
-dvdx,dvdy = ri(0,x-dvdsizex),ri(0,y-dvdsizey)
-wobspeed = 3
+dvdpos = ri(0,screensize[0]-dvdsize[0]),ri(0,screensize[1]-dvdsize[1])
+dvdspeed = 3
 
 richtung = ["r","u"]
 def randcolor():
     return (ri(0,255),ri(0,255),ri(0,255))
 
-def moving(richtung,wobx,woby):
+def moving(richtung,dvdpos):
+    dvdx,dvdy = dvdpos
     if richtung[0] == "r":
-        wobx += wobspeed
+        dvdx += dvdspeed
     else:
-        wobx -= wobspeed
+        dvdx -= dvdspeed
     if richtung[1] =="u":
-        woby += wobspeed
+        dvdy += dvdspeed
     else:
-        woby -=wobspeed
-    return wobx,woby
+        dvdy -= dvdspeed
+    return dvdx,dvdy
 
 def toggle_fullscreen(is_fullscreen):
     if is_fullscreen:
@@ -46,6 +49,12 @@ def toggle_fullscreen(is_fullscreen):
     is_fullscreen = not is_fullscreen
     return is_fullscreen,pygame.display.get_window_size()
 
+def get_debug_text():
+    debug_text = ""
+    for index,a in enumerate(globals()):
+        debug_text = default_font.render(f"{str(a)} = {globals()[a]}", True, (240, 240, 240))
+        screen.blit(debug_text,(0,index*default_font.get_height()))
+
 running = True
 if __name__ == "__main__":
     color = randcolor()
@@ -58,12 +67,14 @@ if __name__ == "__main__":
             exit()
         if pressed_keys[pygame.K_SPACE] and not preview_pressed_keys[pygame.K_SPACE]:
            fill_screen = not fill_screen
+        if pressed_keys[pygame.K_d] and not preview_pressed_keys[pygame.K_d]:
+           show_debug = not show_debug
         if pressed_keys[pygame.K_f] and screen.get_size():
-            is_fullscreen,(x,y) = toggle_fullscreen(is_fullscreen)
-        if pressed_keys[pygame.K_UP] and wobspeed>=0:
-            wobspeed += 1
-        if pressed_keys[pygame.K_DOWN] and wobspeed>=1:
-            wobspeed -= 1
+            is_fullscreen,screensize = toggle_fullscreen(is_fullscreen)
+        if pressed_keys[pygame.K_UP] and dvdspeed>=0:
+            dvdspeed += 1
+        if pressed_keys[pygame.K_DOWN] and dvdspeed>=1:
+            dvdspeed -= 1
         if pressed_keys[pygame.K_RIGHT] and dvdscale>0.1:
             dvdscale += 0.1
             dvdscalesize = scale(dvdscale)
@@ -77,24 +88,26 @@ if __name__ == "__main__":
             if event.type == pygame.QUIT:
                 exit()
             if event.type == pygame.WINDOWRESIZED:
-                x,y = pygame.display.get_window_size()
+                screensize = pygame.display.get_window_size()
         
-        if dvdx+dvdscalesize[0] >= x:
+        if dvdpos[0]+dvdscalesize[0] >= screensize[0]:
             richtung[0] = "l"
             color = randcolor()
-        if dvdx <= 0:
+        if dvdpos[0] <= 0:
             richtung[0] = "r"
             color = randcolor()
-        if dvdy+dvdscalesize[1] >= y:
+        if dvdpos[1]+dvdscalesize[1] >= screensize[1]:
             richtung[1] = "o"
             color = randcolor()
-        if dvdy <= 0:
+        if dvdpos[1] <= 0:
             richtung[1] = "u"
             color = randcolor()
         
-        dvdx,dvdy = moving(richtung,dvdx,dvdy)
-        pygame.draw.rect(screen,color,(dvdx,dvdy,dvdscalesize[0],dvdscalesize[1]))
+        dvdpos = moving(richtung,dvdpos)
+        pygame.draw.rect(screen,color,(dvdpos[0],dvdpos[1],dvdscalesize[0],dvdscalesize[1]))
         dvdscaled = pygame.transform.scale(dvd,dvdscalesize)
-        screen.blit(dvdscaled,(dvdx,dvdy))
-        pygame.display.update()
+        screen.blit(dvdscaled,dvdpos)
+        if show_debug:
+            get_debug_text()
+        pygame.display.flip()
         clock.tick(60)
\ No newline at end of file