From 69a8e0bd9b5bf62cadb3f26b675a0d92b53e8668 Mon Sep 17 00:00:00 2001
From: Wolfgang Nowak <wn@magma.donar.str>
Date: Mon, 6 Nov 2023 21:55:46 +0100
Subject: [PATCH] Kuhschleudern

---
 kreis.py | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100755 kreis.py

diff --git a/kreis.py b/kreis.py
new file mode 100755
index 0000000..cf1d512
--- /dev/null
+++ b/kreis.py
@@ -0,0 +1,61 @@
+#!/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 = "*"
+if cow.isascii():
+    charlength = 1
+else:
+    charlength = 2
+
+# Needed: find our screensize
+termsize_xy = os.get_terminal_size()
+# maximum and medium of points in a row
+xmax = termsize_xy[0] - 1
+xmitte = xmax / 2
+# maximum and medium of points in a column
+ymax = termsize_xy[1]
+ymitte = ymax / 2
+
+# 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. Noone has a display with 31416 Pixels in a row. U know better? Enhance it.
+pi = 3.1416
+# This is for convenience, if you are thinking in degrees. It must not be recalculated every loop.
+deg2rad = pi / 180
+# position cursor at x,y - where x=0 y=0 is the left lower corner like in mathematical diagrams
+
+# some scales, we need. Those UTF8Cows are 2 chars wide and need more space. So we have to scale one Axis
+radius = ymitte - 2
+xradius = ymitte * charlength - 1
+
+
+# Position the curser at x,y. Yes, we start with x, print does not, you are looking right. Leave it this way!
+def curpos(x, y):
+    print("\033[%d;%dH" % (ymax - y, x), end="", flush=True)
+
+
+print(clear, curoff)
+
+# Draw a circle in maximum 360 Steps, one for for every degree
+for winkel in range(0, 359):
+    x = sin(winkel * deg2rad) * xradius + xmitte
+    y = cos(winkel * deg2rad) * radius + ymitte
+    curpos(x, y)
+    print(cow, end="")
+    time.sleep(0.01)
+
+
+curpos(1, 1)
+sys.exit(curon + "Schulz nun.")