param (
	[switch]$md = $false
)

Write-Host "Checking for submodule path..."
if (-not(Test-Path Gamelib)) {
	Write-Host "Path Gamelib doesn't exist.";
	if (-not($md)) {
		Write-Host "Exiting.";
		Write-Host "If you want to automatically create the subdirectory,";
		Write-Host "please pass the flag -md";
		exit;
	}
	New-Item -Path Gamelib -Type Directory;
}

Write-Host "Updating submodule..."
try {
	git submodule update --init;
	Set-Location Gamelib;
	git fetch;
	git status;
	git checkout gamelib;
	git pull;
	Set-Location ..;
	Write-Host "Update done.";
} catch {
	Write-Host "There's been an error. Is Git installed?";
}