Parabel

parabeltest.py

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+#!/usr/bin/python3
+# -*- coding: utf-8 -*-
+
+
+import os, sys, termios, tty, time, random
+from math import sin, cos, sqrt
+from time import sleep
+
+# Randomly choose a cow
+cows = "🐵🐒🦍🦧🐕🐯🦝🐩🐅🐴🐎🦄🦌🐗🐂🐃🐄🐪🐫🦙🦒🐹🦘🦡🐧🕊️🦅🦆🦉🐍🦎🐊🦜🦚🦩🐲🐉🦕"
+cowslength = len(cows)
+# cow = cows[random.randint(0, cowslength - 1)]
+# cow = "🐄"
+cow = "*"
+
+# Needed: find our screensize
+termsize_xy = os.get_terminal_size()
+xmax = termsize_xy[0] - 1
+xmitte = xmax / 2
+ymax = termsize_xy[1]
+
+# 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"
+
+
+# pi is not defined by default
+pi = 3.1416
+deg2rad = pi / 180
+# position cursor at x,y - where x=0 y=0 is the left lower corner like in mathematical diagrams
+def curpos(x, y):
+    print("\033[%d;%dH" % (ymax - y, x), end="", flush=True)
+
+
+# some scales, we need
+# not everything has to be recomputed in loops.
+angle = 80 * deg2rad
+sinangle = sin(angle)
+cosangle = cos(angle)
+power = sin(50 * deg2rad)
+xsteps = xmax
+gravitation = 10
+x = 0
+y = x**2
+
+# init screen and wait for userinput
+print(clear, curoff)
+print(xsteps)
+a = input("CR please:")
+
+curpos(1, ymax)
+for x in range(1, xsteps):
+    # parameters to fit the screen
+    y = (x - xmitte) ** 2 /xmitte
+    if y < ymax:
+        curpos(x, ymax- y)
+        print(cow, end="")
+        time.sleep(0.01)
+
+
+curpos(1, 1)
+sys.exit(curon + "Schulz nun.")