sin

symbols = ['-', '#', '<']
resolution = [180, 25]
use_terminal_size = False
speed = 2
freq  = 2
color = ['', '\033[33m', '\033[41m']

# BLACK = '\033[30m'
# RED = '\033[31m'
# GREEN = '\033[32m'
# YELLOW = '\033[33m'
# BLUE = '\033[34m'
# MAGENTA = '\033[35m'
# CYAN = '\033[36m'
# WHITE = '\033[37m'
import math
shift = 0

while True:
    if use_terminal_size:
        import os
        try:
            columns, rows = os.get_terminal_size(0)
        except OSError:
            columns, rows = os.get_terminal_size(1)
        resolution = [columns, rows-1]
    page = []
    printpage = []
    shift += 1
    sin = 0
    for i in range(0, resolution[0]-2):
        sin = round((math.sin(math.radians(i*2*freq + (shift*speed)))+1)/2*(resolution[1]-1))
        pstr = list(symbols[0]*resolution[1])
        pstr[sin] = symbols[1]
        pstr = "".join(pstr)
        page.append(pstr)
    page.append(' '*resolution[1])
    pointer = list(' '*resolution[1])
    pointer[sin] = symbols[2]
    pointer = "".join(pointer)
    page.append(pointer)
    for r in range(len(page[0])):
        row = ''
        for c in range(len(page)):
            row += page[c][r]
        printpage.append(row.replace(symbols[1], color[1] + symbols[1] + '\033[0m').replace(symbols[2], color[2] + symbols[2] + '\033[0m'))
    printpage.append('\033[100m frame ' + str(shift) + ' \033[0m')
    print("\033c" + "\n".join(printpage))