var _caps : bool = false

func _ready():
    # Godot doesn't have any built in way of checking the status of the caps lock key.
    # This short demonstration will show you a work around.
    # This is an inelegant solution but it seems to work under Windows 10 and Pop_OS! 20.04
    # I would recommend only calling this once when your game starts, after which you can track the changes to the capslock key inside of godot
    # This still needs testing on MacOS, older versions of windows and other linux flavours

    var output = [] # Output will contain the output of the execute function

    if (OS.get_name() == "X11"): # Does this completely fail on Wayland? Maybe it will be better to use a solution similar to windows?
        var err = OS.execute("bash", ["-c", "xset -q | grep Caps"], true, output)  # bash calls /bin/bash a command interpreter
        if (err == OK):                                                          # xset -q gets the status of the keyboard
                                                                                 # | grep Caps outputs the line that starts with Caps
                                                                                 # true pauses the game until the command finishes
                                                                                 # output, see above
            var result = output[0].split(":")
            if (result[2].find("on") != -1):
                _caps = true
        else:
            print ("Sorry something went wrong. Maybe you don't have bash or xset. Godot Error: " + str(err))
    elif (OS.get_name() == "Windows" or OS.get_name() == "UWP"):
        var err = OS.execute("capsChecker.exe", [], true, output) # This runs a small program written in c++, see capsChecker.cpp
        if (err == OK):
            if (output[0] == "On"):
                _caps = true
        else:
            print ("Sorry something went wrong. Please make sure capsChecker.exe is present in res://. Godot Error: " + str(err))
    elif (OS.get_name() == "MacOS"):
        pass # todo probably need to call a different executive
    else:
        print("You are likely on mobile and the virtual keyboard sorts all this out for you.")