Rebinding Keys (for searchcrafting)

• Install xdotool and xmodmap

sudo dnf install xdotool xmodmap

• Now make a new file called Rebinder.py wherever you like and copy the following contents into it.

import os

# Settings
window_filter = "Minecraft*"
rebinds = {
    25: "h",
    43: "w",
}
reset_rebinds = {
    43: "h",
    25: "w",
}


rebound_keys = False
while True:
    active_window = os.popen(
        "xdotool getactivewindow getwindowclassname").read()
    if window_filter in active_window and not rebound_keys:
        for (keycode, keysym) in rebinds.items():
            rebind_cmd = f"xmodmap -e 'keycode {keycode} = {keysym}'"
            os.system(rebind_cmd)
            print(f"Rebound Keycode: {keycode} to Keysym: {keysym}")
            rebound_keys = True
    elif window_filter not in active_window and rebound_keys:
        for (keycode, keysym) in reset_rebinds.items():
            reset_cmd = f"xmodmap -e 'keycode {keycode} = {keysym}'"
            process = os.popen(reset_cmd)
            os.system(reset_cmd)
            print(f"Rebound Keycode: {keycode} to Keysym: {keysym}")
            rebound_keys = False

• Here you can configure what keycodes can be rebound to what key symbols and how you can reset them to their original state (this happens when you are not focussed on a Minecraft instance).
• This information can be obtained by running xev in a terminal and hitting the respective key. You need to look for the Key Press or Key Release event in the output which will state the keycode and keysym in the following lines after it. The examples are a good place to start. Hit h and w and see what the keycodes are. They should be 43 and 25 respectively. The example is a circular rebind from h -> w and w -> h.
• NOTE If you rebind keys using this method, you don't need to change your StandardSettings to indicate the change. Minecraft will automatically detect this change and poll for that rebound keycode instead.
• Now running python3 Rebinder.py will rebind your keys if focussed on a Minecraft window.
• Note that you need to run python3 Rebinder.py in a terminal each time before you start your resetting session.