add a bunch of sway stuff

.config/sway/scripts/brightness.sh

@@ -0,0 +1,25 @@
+#!/bin/sh
+current_abs=$(brightnessctl get)
+current_rel() {
+    echo "$(brightnessctl get) * 100 / $(brightnessctl max)" | bc 
+} 
+max=$(brightnessctl max)
+factor=3
+brightness_step=$((max * factor / 100 < 1 ? 1 : max * factor / 100))
+
+case $1'' in
+'') ;;
+'down')
+    # if current value <= 3% and absolute value != 1, set brightness to absolute 1
+    if [ "$(current_rel)" -le "$factor" ] && [ "$current_abs" -ge 0 ]; then
+        brightnessctl --quiet set 1
+    else
+        brightnessctl --quiet set "${brightness_step}-"
+    fi
+    ;;
+'up')
+    brightnessctl --quiet set "${brightness_step}+"
+    ;;
+esac
+
+current_rel