From 2d1c8f7d19e1f8d38a8a35afc6b9e5f064bf78b1 Mon Sep 17 00:00:00 2001
From: Wolfgang Nowak <wn@magma.donar.str>
Date: Sun, 19 Nov 2023 17:29:23 +0100
Subject: [PATCH] Funktioniert, mit Meispiel

---
 parabelfunc.py | 61 +++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 46 insertions(+), 15 deletions(-)

diff --git a/parabelfunc.py b/parabelfunc.py
index 4684850..4c18d7b 100755
--- a/parabelfunc.py
+++ b/parabelfunc.py
@@ -6,7 +6,7 @@ import os, sys, termios, tty, time, random
 from math import sin, cos, tan, sqrt
 from time import sleep
 
-
+######################################################
 def berechneflugbahn(cow, xmin, xmax, ymin, ymax, startwinkel, startgeschwindigkeit, starthoehe):
     x = 0
     y = x**2
@@ -17,6 +17,7 @@ def berechneflugbahn(cow, xmin, xmax, ymin, ymax, startwinkel, startgeschwindigk
     jupiter = 24
     gravitation = erde
     startwinkel = startwinkel * deg2rad
+    cowlength = len(cow) + 1
 
     # Calculate time of flight
     flugdauer = startgeschwindigkeit * sin(startwinkel) / gravitation
@@ -38,33 +39,63 @@ def berechneflugbahn(cow, xmin, xmax, ymin, ymax, startwinkel, startgeschwindigk
         y = (-(gravitation / (2 * startgeschwindigkeit**2 * cos(startwinkel) ** 2)) * x**2) + (tan(startwinkel) * x + starthoehe)
 
         # Ensure, that nothing has to be drawn outside the viewport
-        if y < ymax and y > ymin:
+        if y <= ymax and y >= ymin:
             # Stash awa the coordinates into scala, which will be returned
-            scala += [x, int(y * 10 + 5) / 10]
+            scala += [x, int((y * 100 + 50) / 100)]
         else:
-            scala += [x, 0]
+            scala += [0, 0]
 
         xold = x
 
     return scala
 
 
+######################################################
 # berechneflugbahn(cow, xmin, xmax, ymin, ymax, startwinkel, startgeschwindigkeit, starthoehe):
 
+# set position of cursor
+def curpos(x, y):
+    print("\033[%d;%dH" % (ymax - y, x), end="", flush=True)
 
-cow = "🦝"
-cowlength = len(cow)
-xmax = 157
-ymax = 38
-ymin = 0
-xmin = 0
-xold = xmin
+
+# Randomly choose a cow
+cows = "🐵🐒🦍🦧🐕🐯🦝🐩🐅🐴🐎🦄🦌🐗🐂🐃🐄🐪🐫🦙🦒🐹🦘🦡🐧🕊️ 🦅🦆🦉🐍🦎🐊🦜🦚🦩🐲🐉🦕"
+cowlistlength = len(cows)
+cow = cows[random.randint(0, cowlistlength - 1)]
 # pi is not defined by default
 pi = 3.1416
 deg2rad = pi / 180
+
+# Needed: find our screensize. We are in textmode here
+termsize_xy = os.get_terminal_size()
+
+### I m p o r t a n t   p a r a m e t e r s ###
+
+# X-Resolution of the display
+xmax = termsize_xy[0] - 1
 xsteps = xmax
-wurfweite = 0
-startwinkel = 34 
-startgeschwindigkeit = 23
+ymax = termsize_xy[1]
+ymin = 0
+xmin = 0
+startwinkel = 34
+startgeschwindigkeit = 31
 starthoehe = 0
-print(berechneflugbahn(cow, xmin, xmax, ymin, ymax, startwinkel, startgeschwindigkeit, starthoehe))
+###
+
+# needed for erasing ol position
+xold = xmin
+yold = ymin
+x = xmin
+y = xmin
+
+# Call the function, which calculates the coordinates)
+ergebnis = berechneflugbahn(cow, xmin, xmax, ymin, ymax, startwinkel, startgeschwindigkeit, starthoehe)
+
+# here we draw the cow
+for count in range(xmin, len(ergebnis), 2):
+    xold, yold = x, y
+    x, y = ergebnis[count], ergebnis[count + 1]
+    curpos(x, y)
+    print(cow, end="")
+    curpos(xold, yold)
+bla = input("CR please...")