Powershell text based menu with arrows navigation

text_menu.ps1

function moveCursor{ param($position)
  $host.UI.RawUI.CursorPosition = $position
}


function RedrawMenuItems{ 
    param ([array]$menuItems, $oldMenuPos=0, $menuPosition=0, $currPos)
    
    # +1 comes from leading new line in the menu
    $menuLen = $menuItems.Count + 1
    $fcolor = $host.UI.RawUI.ForegroundColor
    $bcolor = $host.UI.RawUI.BackgroundColor
    $menuOldPos = New-Object System.Management.Automation.Host.Coordinates(0, ($currPos.Y - ($menuLen - $oldMenuPos)))
    $menuNewPos = New-Object System.Management.Automation.Host.Coordinates(0, ($currPos.Y - ($menuLen - $menuPosition)))
    
    moveCursor $menuOldPos
    Write-Host "`t" -NoNewLine
    Write-Host "$oldMenuPos. $($menuItems[$oldMenuPos])" -fore $fcolor -back $bcolor -NoNewLine

    moveCursor $menuNewPos
    Write-Host "`t" -NoNewLine
    Write-Host "$menuPosition. $($menuItems[$menuPosition])" -fore $bcolor -back $fcolor -NoNewLine

    moveCursor $currPos
}

function DrawMenu { param ([array]$menuItems, $menuPosition, $menuTitel)
    $fcolor = $host.UI.RawUI.ForegroundColor
    $bcolor = $host.UI.RawUI.BackgroundColor

    $menuwidth = $menuTitel.length + 4
    Write-Host "`t" -NoNewLine;    Write-Host ("=" * $menuwidth) -fore $fcolor -back $bcolor
    Write-Host "`t" -NoNewLine;    Write-Host " $menuTitel " -fore $fcolor -back $bcolor
    Write-Host "`t" -NoNewLine;    Write-Host ("=" * $menuwidth) -fore $fcolor -back $bcolor
    Write-Host ""
    for ($i = 0; $i -le $menuItems.length;$i++) {
        Write-Host "`t" -NoNewLine
        if ($i -eq $menuPosition) {
            Write-Host "$i. $($menuItems[$i])" -fore $bcolor -back $fcolor -NoNewline
            Write-Host "" -fore $fcolor -back $bcolor
        } else {
           if ($($menuItems[$i])) {
            Write-Host "$i. $($menuItems[$i])" -fore $fcolor -back $bcolor
           } 
        }
    }
    # leading new line
    Write-Host ""
}

function Menu { param ([array]$menuItems, $menuTitel = "MENU")
    $vkeycode = 0
    $pos = 0
    $oldPos = 0
    DrawMenu $menuItems $pos $menuTitel
    $currPos=$host.UI.RawUI.CursorPosition
    While ($vkeycode -ne 13) {
        $press = $host.ui.rawui.readkey("NoEcho,IncludeKeyDown")
        $vkeycode = $press.virtualkeycode
        Write-host "$($press.character)" -NoNewLine
        $oldPos=$pos;
        If ($vkeycode -eq 38) {$pos--}
        If ($vkeycode -eq 40) {$pos++}
        if ($pos -lt 0) {$pos = 0}
        if ($pos -ge $menuItems.length) {$pos = $menuItems.length -1}
        RedrawMenuItems $menuItems $oldPos $pos $currPos
    }
    Write-Output $pos
}

$bad = "Item1","Item2"
$selection = Menu $bad "Select menu item"

Switch ($selection){
    0 {
        Write-Host "Menu item 0"
    }
    1 {
     Write-Host "Menu item 1"
    }
}