autoclicker.sh

#!/usr/bin/env bash

# This is a simple yet smart Minecraft autoclicker compatible with X Window Server 
# (xdotool does not support Wayland at the time of writing this script)

# To use this autoclicker copy it to your workstation, make it executable and run it.
# Make sure to install https://github.com/jordansissel/xdotool#installation before using this script.
# Minecraft cannot be in fullscreen mode.
# You can put food in your off-hand, the script will hold right click for 4 seconds (enough to eat) every 15 minutes.


# Get all process IDs that match the window class of "Minecraft"
pids=$(xdotool search --class "Minecraft")

# Loop them to find the valid window
for pid in $pids; do
  name=$(xdotool getwindowname $pid)

  if [[ $name == *"Minecraft"* ]]; then
    # Convert decimal PID to hexadecimal
    window_id=$(printf 0x"%x\n" $pid)

    echo "Start clicking!"
    while :; do 
      echo "Smack em!"
      xdotool click --repeat 900 --delay 1000 --window "$window_id" 1
      echo "Eating!"
      xdotool mousedown --window "$window_id" 3  
      sleep 4;
      xdotool mouseup --window "$window_id" 3
    done

    # Stop looping
    break
  fi
done