diff --git a/parabeltest.py b/parabeltest.py
index 2dd17ec..1f89ad3 100755
--- a/parabeltest.py
+++ b/parabeltest.py
@@ -18,6 +18,7 @@ xmax = termsize_xy[0] - 1
 ymax = termsize_xy[1]
 ymin = 0
 xmin = 0
+xold = xmin
 
 # pi is not defined by default
 pi = 3.1416
@@ -28,6 +29,8 @@ def curpos(x, y):
     print("\033[%d;%dH" % (ymax - y, x), end="", flush=True)
 
 
+outputfile = open("cowyeetflugbahn.txt", "w")
+
 # CTRL and ESC-codes for the used outputdevice. Probably a terminal.
 clear, home, curoff, curon = "'\x1b[2J\x1b[H", "\x1b[H", "\x1b[?25l", "\x1b[?25h"
 
@@ -46,21 +49,23 @@ scala = []
 
 # used, if input is disabled
 starthoehe = 0
-startwinkel = 26
-startgeschwindigkeit = 23
-loeschen = "n"
+startwinkel = 26 * deg2rad
+startgeschwindigkeit = 36
+loeschen = "y"
 
-# Be a friendly host, lets have a talk.
-# comment out to speed up testing
-starthoehe = float(input("Starthöhe in Metern, empf: 0-20: "))
-startwinkel = float(input("Startwinkel 0° - 90°: ")) * deg2rad
-startgeschwindigkeit = float(input("Startgeschwindigkeit Meter (zb 20) pro Sekunde: "))
-loeschen = input("Kuh löschen? (y/n)")
+bla = input("Parameter editieren (y) oder Vorgabe nutzen?")
+if bla == "y":
+    # Be a friendly host, lets have a talk.
+    # comment out to speed up testing
+    starthoehe = float(input("Starthöhe in Metern, empf: 0-20: "))
+    startwinkel = float(input("Startwinkel 0° - 90°: ")) * deg2rad
+    startgeschwindigkeit = float(input("Startgeschwindigkeit Meter (zb 20) pro Sekunde: "))
+    loeschen = input("Kuh löschen? (y/n)")
 ####
 
 # Calculate time of flight
 flugdauer = startgeschwindigkeit * sin(startwinkel) / gravitation
-
+schlafdauer = flugdauer / xmax
 # Calculate maximum height
 hoehe = 0.5 * gravitation * flugdauer**2 + starthoehe
 
@@ -88,6 +93,8 @@ print(
     starthoehe,
     "\nhoehe: ",
     hoehe,
+    "\nschlafdauer: ",
+    schlafdauer,
 )
 
 bla = input("CR please:")
@@ -96,23 +103,26 @@ bla = input("CR please:")
 curpos(1, ymax)
 
 # cowlength is 2, if cow is an UTF8-Icon, otherwise 1
-for x in range(1, xsteps, cowlength):
+for x in range(xmin, xsteps - 1, cowlength):
     # the formula, which generates the y position for the corresponding x, shamelessly ripped from some schoolbook and modified.
     yold = y
     y = (-(gravitation / (2 * startgeschwindigkeit**2 * cos(startwinkel) ** 2)) * x**2) + (tan(startwinkel) * x + starthoehe)
 
+    time.sleep(schlafdauer)
     # Ensure, that nothing has to be drawn outside the viewport
     if y < ymax and y > ymin:
         curpos(x, y)
         print(cow, end="")
         # Stash awa the coordinates into scala, which will be returned
         scala += [x, int(y * 10 + 5) / 10]
-        time.sleep(0.03)
         if loeschen == "y":
-            curpos(x - 2, yold)
-            print("  ", end="")
+            curpos(xold, yold)
+            print(" ", end="")
+    else:
+        scala += [x, 0]
 
+    xold = x
 
 curpos(0, 0)
-# print(scala)
+outputfile.write(str(scala))
 sys.exit(curon + "Moooooooooooo.")