105 lines
2.6 KiB
Python
Executable file
105 lines
2.6 KiB
Python
Executable file
#!/usr/bin/python3
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# -*- coding: utf-8 -*-
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import os, sys, termios, tty, time, random
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from math import sin, cos, tan, sqrt
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from time import sleep
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# Randomly choose a cow
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cows = "🐵🐒🦍🦧🐕🐯🦝🐩🐅🐴🐎🦄🦌🐗🐂🐃🐄🐪🐫🦙🦒🐹🦘🦡🐧🕊️🦅🦆🦉🐍🦎🐊🦜🦚🦩🐲🐉🦕"
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cowlistlength = len(cows)
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cow = cows[random.randint(0, cowlistlength - 1)]
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cowlength = len(cow)
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# Needed: find our screensize
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termsize_xy = os.get_terminal_size()
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xmax = termsize_xy[0] - 1
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ymax = termsize_xy[1]
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ymin = 0
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xmin = 0
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# pi is not defined by default
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pi = 3.1416
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deg2rad = pi / 180
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# position cursor at x,y - where x=0 y=0 is the left lower corner like in mathematical diagrams
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def curpos(x, y):
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print("\033[%d;%dH" % (ymax - y, x), end="", flush=True)
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# CTRL and ESC-codes for the used outputdevice. Probably a terminal.
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clear, home, curoff, curon = "'\x1b[2J\x1b[H", "\x1b[H", "\x1b[?25l", "\x1b[?25h"
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# some scales, we need
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# not everything has to be recomputed in loops.
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xsteps = xmax
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x = 0
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y = x**2
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starthoehe = 0
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startwinkel = 45
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startgeschwindigkeit = 23
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erde = 9.81
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mond = 1.6
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jupiter = 24
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gravitation = erde
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#########################
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starthoehe = float(input("Starthöhe: "))
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startwinkel = float(input("Startwinkel: ")) * deg2rad
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startgeschwindigkeit = float(input("Startgeschwindigkeit: "))
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# Calculate time of flight
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flugdauer = startgeschwindigkeit * sin(startwinkel) / gravitation
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# Calculate maximum height
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hoehe = 0.5 * gravitation * flugdauer**2 + starthoehe
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# calculate length of flight
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wurfweite = (
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startgeschwindigkeit
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* cos(startwinkel)
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* (startgeschwindigkeit * sin(startwinkel) + sqrt(startgeschwindigkeit**2 * sin(startwinkel) ** 2 + 2 * gravitation * starthoehe))
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) / gravitation
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# init screen and wait for userinput
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print(clear, curoff)
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print(
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"xteps: ",
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xsteps,
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"\nwurfweite: ",
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wurfweite,
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"\nstartwinkel: ",
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startwinkel,
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"\nstartgeschwindigkeit: ",
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startgeschwindigkeit,
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"\nstarthroehe: ",
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starthoehe,
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"hoehe: ",
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hoehe,
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)
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a = input("CR please:")
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# position cursor down left corner
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curpos(1, ymax)
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# cowlenght ist 2, is cow is an UTF8-Icon, otherwise 1
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for x in range(1, xsteps, cowlength):
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# the formula, which genereates the y position for the corresponding x
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y = (-(gravitation / (2 * startgeschwindigkeit**2 * cos(startwinkel) ** 2)) * x**2) + (tan(startwinkel) * x + starthoehe)
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# Ensure, that nothing has to be drawn outside the viewport
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if y < ymax and y > ymin:
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curpos(x, y)
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print(cow, end="")
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time.sleep(0.01)
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curpos(1, 1)
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sys.exit(curon + "Moooooooooooo.")
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