Control Shell Script Menu with Game Controller Joystick

#!/bin/bash
######################################################################
#Copyright (C) 2024  Kris Occhipinti
#https://filmsbykris.com

#This program is free software: you can redistribute it and/or modify
#it under the terms of the GNU General Public License as published by
#the Free Software Foundation version 3 of the License.

#This program is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#GNU General Public License for more details.

#You should have received a copy of the GNU General Public License
#along with this program.  If not, see <http://www.gnu.org/licenses/>.
######################################################################

#uses the first game controller to select items from menu

let i="0"
list=("continue" "reboot" "poweroff" "thunar")

function next() {
    [[ $1 ]] && let i+=1 || let i-=1
    [[ $i == ${#list[@]} ]] && let i=0
    [[ $i -lt 0 ]] && let i=${#list[@]}-1
    selected
}

function selected() {
    clear
    echo "What would you like to do?"
    echo ${list[$i]}
}

function select_item() {
    [[ ${list[$i]} == "continue" ]] && exit
    eval ${list[$i]}
    exit
}

selected

jstest --event /dev/input/js0 | while read l; do
    [[ "$l" == *"number 1, value 1"* ]] && select_item
    [[ "$l" == *"number 2, value 1"* ]] && select_item
    [[ "$l" == *"number 5, value -32767"* ]] && next
    [[ "$l" == *"number 5, value 32767"* ]] && next 1
done