Merge remote-tracking branch 'origin/main'

README.md

@@ -26,4 +26,24 @@ and returns a list of x and y coordinates: [x1,y1,x2,y2....] like the following
 
 The parameter cow is not useless, it can be set to any singlebyte ASCII string like "*" or some doublespaced UTF8 char like "🐄". If it is a singlechar in ASCII, which is the default, the curve will be calculated with singlesteps, if ist is a UTF8-String, each step will be 2 points, because we now know, we have a textmode display and doublewidth chars.
 
+```
+ # X-Resolution of the display 
+
+ cow="🐫"
+ xmax = 100
+ ymax = 40
+ ymin = 0
+ xmin = 0
+ startwinkel = 34
+ startgeschwindigkeit = 31
+ starthoehe = 0
+
+ergebnis = berechneflugbahn(cow, xmin, xmax, ymin, ymax, startwinkel, startgeschwindigkeit, starthoehe)
+
+for count in range(xmin, len(ergebnis), 2):
+    x, y = ergebnis[count], ergebnis[count + 1]
+    curpos(x, y)
+    print(cow, end="")
+
+```
 

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
@@ -17,14 +17,17 @@ def berechneflugbahn(cow, xmin, xmax, ymin, ymax, startwinkel, startgeschwindigk
     jupiter = 24
     gravitation = erde
     startwinkel = startwinkel * deg2rad
+    if cow.isascii():
+        cowlength = 1
+    else:
+        cowlength = 1
 
-    # Calculate time of flight
+    # Calculate time of flight, actually not used
     flugdauer = startgeschwindigkeit * sin(startwinkel) / gravitation
-    schlafdauer = flugdauer / xmax
     # Calculate maximum height
     hoehe = 0.5 * gravitation * flugdauer**2 + starthoehe
 
-    # calculate length of flight
+    # calculate length of flight, actually not used
     wurfweite = (
         startgeschwindigkeit
         * cos(startwinkel)
@@ -34,37 +37,73 @@ def berechneflugbahn(cow, xmin, xmax, ymin, ymax, startwinkel, startgeschwindigk
     # cowlength is 2, if cow is an UTF8-Icon, otherwise 1
     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)
 
         # Ensure, that nothing has to be drawn outside the viewport
-        if y < ymax and y > ymin:
-            # Stash awa the coordinates into scala, which will be returned
-            scala += [x, int(y * 10 + 5) / 10]
+        if y <= ymax and y >= ymin:
+            # Stash away the coordinates into scala, which will be returned
+            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):
 
+# some useful control
+clear, home, curoff, curon = "'\x1b[2J\x1b[H", "\x1b[H", "\x1b[?25l", "\x1b[?25h"
+# 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))
+schlafzeit = 0.05
+###
+
+# 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)
+print(curoff)
+# 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="")
+    sleep(schlafzeit)
+    curpos(xold, yold)
+    print("☁️ ", end="")
+
+
+sys.exit(home + cow + curon)