New script : control game session time

A script to limit gameplay to 1h per day (per default), and kill the game when the limit is reach (1-minute warning)

mcTimer.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+
+#install rss-glx
+#echo 2025-08-31T3000 >> $HOME/mcMilo
+wget -o /tmp/Minecraft.deb https://launcher.mojang.com/download/Minecraft.deb &
+update ; install default-jre default-jdk
+sudo apt install /tmp/Minecraft.deb
+
+user=Milo # Milo | Ayana
+exec="/usr/libexec/xscreensaver/hyperspace"
+notify="notify-send"
+limit="3600" # seconds / day
+logfile="$HOME/mc$user"
+
+today="$(date -I)"
+start="$(date +%s)"
+last="$(tail -n 1 $logfile)"
+remaining="$(bc <<< "$limit - 0$(grep -q "$today" <<< "$last" && cut -d "T" -f 2 <<< "$last")")"
+
+test "$remaining" -le "0"  && "$notify" "Temps dépassé pour aujourd'hui" && exit 1
+
+function conclude()	{
+	end="$(date +%s)"
+
+	grep -q "$today" <<< "$last" && end="$(bc <<< "$(cut -d "T" -f 2 <<< "$last") + "$end"")"
+
+	time="$(bc <<< "$end - $start")"
+
+	echo "$start $end $time"
+
+	echo "${today}T${time}" >> "$logfile"
+}
+
+"$exec" &
+pid="$!"
+
+( sleep "$remaining" ; "$notify" "Limite de temps atteinte. Extinction dans 1 minute" ; sleep 60 ; kill "$pid" ; conclude ) &
+killer="$!"
+
+wait "$pid"
+conclude
+kill "$killer"