tried to improve error handling and rollback functionality.

Author: darko-pilav

modpack_win.ps1

@@ -52,17 +52,17 @@ function download($array) {
   for($i=0;$i -lt $array.length;$i++){
     if ($status){$errorcount = 0}
     Write-Output "[$($i+1) of $($array.length)]: $($array[$i][1])"
-	Invoke-WebRequest -Uri $array[$i][0] -OutFile $array[$i][1] -ErrorVariable +err
-	if (-not $?) {
+    Invoke-WebRequest -Uri $array[$i][0] -OutFile $array[$i][1] -ErrorVariable +err
+    if (-not $?) {
       $status = $?
-	  $i = $i - 1
       $errorcount = $errorcount + 1
       if ($errorcount -lt 3){
         Write-Output "Failed to download $($array[$i][1]). Trying again.`r`n"
       }else{
         Write-Output "Failed to download $($array[$i][1]) three (3) consecutive times. `r`n`r`nPlease make sure you have an internet connection and the newest version`r`nof the KSPtoMars mod installer. `r`nThe error message was: `r`n`r`n$($err[$($err.lenght - 1)])"
-		rollback($BackupPath)
+        rollback($BackupPath)
       }
+      $i = $i - 1
     }
   }
 }
@@ -71,6 +71,7 @@ function download($array) {
 function rollback($RPATH){
   Remove-Item -Recurse -Force $gameDataPath
   new-item -itemtype directory $gameDataPath > $null
+  new-item -itemtype directory $gameDataPath/Squad > $null
   Move-Item -Recurse $RPATH $gameDataPath/Squad
   exit
 }