roulette.sh

#!/bin/bash

########### 
# How to use this roulette script
# ~ $ wget https://gist.githubusercontent.com/dbym4820/334fd9e5c893c3f1e4a46cde725a4022/raw/c044b005de1ac490ea4480cec9dfb126eb055afe/roulette.sh
# ~ $ sh /path/to/roulette.sh [&rest roulette-components-list]
########### 

MAX_TIME=500

file_array=($@)
count=${#file_array[@]}
for item in ${file_array[@]}; do
    echo -n "$item  "
done
echo ""

rand=$(( $RANDOM % 100 ))
rouletSec=$(( $MAX_TIME + $rand ))
restSec=$rouletSec

countDownSpeed=10

lightPoint=0
while :
do
    c=0
    for item in ${file_array[@]}; do
	if [ $c = $lightPoint ]; then
	    for ((i=0; $i<${#item}; ++i)){
		    echo -n "="
		};
		echo -n "  "
	else
	    for ((i=0; $i<${#item}; ++i)){
		    echo -n "_"
		};
		echo -n "  "
	fi
	c=$(( $c + 1 ))
    done
    lightPoint=$(( $lightPoint + 1 ))
    if [ $lightPoint = $count ]; then
	lightPoint=0
    fi
    printf '\r'
    restSec=$(( $restSec - $countDownSpeed ))
    if [ $restSec -lt 0 ]; then
	sleep 1
	echo ""
	if [ $lightPoint = 0 ]; then
	    lightPoint=$(( $count -1 ))
	else
	    lightPoint=$(( $lightPoint -1 ))
	fi
	echo ""
	echo "*********************************************"
	echo "*** The Winner is ... ||| ${file_array[$lightPoint]} |||"
	echo "*********************************************"
	exit 1
    elif [ $restSec -lt 10 ]; then
	sleep .2
	countDownSpeed=3
    elif [ $restSec -lt 100 ]; then
	sleep .12
	countDownSpeed=5
    elif [ $restSec -lt 200 ]; then
	sleep .1
	countDownSpeed=7
    elif [ $restSec -lt 300 ]; then
	sleep .08
    elif [ $restSec -lt 400 ]; then
	sleep .06
    elif [ $restSec -lt 450 ]; then
	sleep .04
    else
	sleep .01
    fi
done