added bluetooth module; replaced bars with ramps

.config/polybar/scripts/battery.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 ## config
 
@@ -10,18 +10,20 @@ low=20
 red='%{F#f00}'
 green='%{F#0f0}'
 end='%{F-}'
-# hack to put a little space between the lightning and the percentage
-smallspace='%{T4} %{T-}'
 
 bat="$(cat /sys/class/power_supply/BAT0/capacity)"
 ac="$(cat /sys/class/power_supply/AC/online)"
+declare -a ramp
+ramp=(          )
 
 # display in red when under $low and no charger is connected
 [ "$bat" -gt "$low" ] || [ "$ac" -eq 1 ] || color="$red"
 # display in green when over $full and a charger is connected
 [ "$bat" -lt "$full" ] || [ "$ac" -eq 0 ] || color="$green"
 
-prefix=" "
-[ "$ac" -eq 0 ] || prefix="⚡"
+let "icon_index = $bat / (${#ramp[@]} - 1)"
+[ $icon_index -lt ${#ramp[@]} ] || icond_index=10
+icon="${ramp[$icon_index]}"
+[ "$ac" -eq 0 ] || charge=""
 
-echo "${color}${prefix}${smallspace}${bat}%"
+echo "${color}${icon}${charge} ${bat}%"