ascii spinner

spinner.rb

#!/usr/bin/env ruby
# encoding: UTF-8


@dot_cycle = ['⣾','⣽','⣻','⢿','⡿','⣟','⣯','⣷']
#braille random: 0x2800 - 0x28ff

@z_arrow = ['←','↖','↑','↗','→','↘','↓','↙']
@z_b   = ['b','ᓂ','q','ᓄ']
@z_d   = ['d','ᓇ','p','ᓀ']
@z_bar = ['|','/','—','\\']
@z_x   = ['x','+']
@z_1   = ['◰','◳','◲','◱']
@z_2   = ['◴','◷','◶','◵']
@z_3   = ['◐','◓','◑','◒']

@y_d = ['d','|','b','|']
@y_q = ['q','|','p','|']

@x_b = ['ᓂ','—','ᓄ','—']
@x_d = ['ᓇ','—','ᓀ','—']

@grow_a = ['|','b','O','b']
@grow_b = ['_','o','O','o']
@grow_c = ['.','o','O','@','*',' ']
@grow_d = ['▁','▃','▄','▅','▆','▇','█','▇','▆','▅','▄','▃']
@grow_e = ['▉','▊','▋','▌','▍','▎','▏','▎','▍','▌','▋','▊','▉']


def spin(seq, sec=0.2)
	i = 0
	n = seq.length

	loop do
		print seq[i]
		i = (i + 1) % n
		sleep sec;
		print "\r"
	end
end


begin
	spin(@grow_c)
rescue Exception => e
	print "\nbye!"
end

exit

You may like to look at
https://antofthy.gitlab.io/info/ascii/HeartBeats_howto.txt

Of course many work better with a X window font that GTK terminal or Monospace font.