random wc3 lan install script. not done nor quality

war3_install.ps1

#Requires -Version 4.0
#Requires -RunAsAdministrator
$ErrorActionPreference = "Stop"

$userHome = (Get-ChildItem Env:USERPROFILE).Value
cd $PSScriptRoot

$confirmation = Read-Host "This script will extract files to your Documents and Program Files (x86) folders, proceed? [y/n]"
while($confirmation -ne "y")
{
    if ($confirmation -eq 'n') {exit}
    $confirmation = Read-Host "Was that a typo? Let me know if you'd like to proceed. [y/n]"
}

$docExist = Test-Path "$userHome\Documents\Warcraft III"
$progFilesExist = Test-Path "C:\Program Files (x86)\Warcraft III"

checkExistingInstall
if ($docExist -eq $true -Or $progFilesExist -eq $true) {
    $confirmation = Read-Host "We found that you have existing Warcraft III assets in either your documents folder, or the Program Files (x86) folder. We can overwrite this for you if desired? [y/n]"
    while($confirmation -ne "y")
    {
        if ($confirmation -eq 'n') {exit}
        $confirmation = Read-Host "Was that a typo? Let me know if you'd like to proceed. [y/n]"
    }
    if ($docExist) {
        Move-Item -Force "C:\Program Files (x86)\Warcraft III" "existing\Documents\Warcraft III"
        Write-Output "We saved your existing Warcraft III folder that was previously in $userHome\Documents"
    }
    if ($progFilesExist) {
        Move-Item -Force "$userHome\Documents\Warcraft III" "existing\Program Files (x86)\Warcraft III"
        Write-Output "We saved your existing Warcraft III folder that was previously in C:\Program Files (x86)\Warcraft III"
    }
    
}

$docExist = Test-Path "$userHome\Documents\Warcraft III"
$progFilesExist = Test-Path "C:\Program Files (x86)\Warcraft III"

if ($docExist -eq $false -And $progFilesExist -eq $false) {
    Copy-Item -Recurse "$PSScriptRoot\Warcraft III-documents\Warcraft III" "$userHome\Documents\"
    Copy-Item -Recurse "$PSScriptRoot\Warcraft III-progfiles\Warcraft III" "C:\Program Files (x86)\"
    Write-Output " +++ Move completed. Warcraft III installed to Program Files (x86), and user data folder in Documents +++ "
    
    $confirmation = Read-Host "Create shortcut? [y/n]"
    while($confirmation -ne "y")
    {
        if ($confirmation -eq 'n') {exit}
        $confirmation = Read-Host "Was that a typo? Let me know if you'd like to proceed. [y/n]"
    }
    $Shell = New-Object -ComObject ("WScript.Shell")
    $ShortCut = $Shell.CreateShortcut("$userHome\Desktop\Your Shortcut.lnk")
    $ShortCut.TargetPath="C:\Program Files (x86)\Warcraft III\Frozen Throne.exe"
    $ShortCut.WorkingDirectory = "C:\Program Files (x86)\Warcraft III\";
    $ShortCut.IconLocation = "C:\Program Files (x86)\Warcraft III\Frozen Throne.exe, 0";
    $ShortCut.Description = "WC3 from spacecrustacean";
    $ShortCut.Save()
}