Prevent PC from sleep PowerShell script

move-mouse.ps1

Add-Type -AssemblyName System.Windows.Forms
# Add-Type -Name ConsoleUtils -Namespace WPIA -MemberDefinition @'
#    [DllImport("Kernel32.dll")]
#    public static extern IntPtr GetConsoleWindow();
#    [DllImport("user32.dll")]
#    public static extern bool ShowWindow(IntPtr hWnd, Int32 nCmdShow);
# '@

# # Hide Powershell window
# $hWnd = [WPIA.ConsoleUtils]::GetConsoleWindow()
# [WPIA.ConsoleUtils]::ShowWindow($hWnd, 0)

param($sleep = 60) # Seconds

Clear-Host

$announcementInterval = 10 # loops
$plusOrMinus = 1 # Mouse position increment or decrement
$WShell = New-Object -com "Wscript.Shell"
$date = Get-Date -Format "dddd MM/dd HH:mm (K)"

$stopwatch
# Some environments don't support invocation of this method.
try {
    $stopwatch = [system.diagnostics.stopwatch]::StartNew()
} catch {
   Write-Host "Couldn't start the stopwatch."
}

Write-Host "Executing NoSleep routine."
Write-Host "Start time:" $(Get-Date -Format "dddd MM/dd HH:mm (K)")

$index = 0
while ($true)
{
  # heartbeat
  Write-Host "<3" -fore red

  # Press ScrollLock key
  $WShell.sendkeys("{SCROLLLOCK}")
  Start-Sleep -Milliseconds 200
  $WShell.sendkeys("{SCROLLLOCK}")
  
  # Move mouse
  $p = [System.Windows.Forms.Cursor]::Position
  $x = $p.X + $plusOrMinus
  $y = $p.Y + $plusOrMinus
  [System.Windows.Forms.Cursor]::Position = New-Object System.Drawing.Point($x, $y)
  $plusOrMinus *= -1
  
  # Sleep
  Start-Sleep -Seconds $sleep

  # Announce runtime on an interval
  if ( $stopwatch.IsRunning -and (++$index % $announcementInterval) -eq 0 )
  {
      Write-Host "Elapsed time: " $stopwatch.Elapsed.ToString('dd\.hh\:mm\:ss')
  }
}