Create Set-SteamLaunchOptions.ps1

dev/Set-SteamLaunchOptions.ps1

@@ -0,0 +1,68 @@
+function Set-SteamLaunchOptions {
+   param(
+        [Parameter(Mandatory=$True)]
+        [int]$GameID,
+
+        [String]$SteamPath = (Get-SteamPath),
+
+        [Parameter(Mandatory=$True)]
+        [String]$Options
+    )
+
+    if (!$SteamPath){
+        Write-Host "Set-LaunchOptions: Steam's path could not be found, returning."
+        return
+    }
+
+    $Users = @{}
+
+    Get-ChildItem $SteamPath/userdata -Directory | ForEach-Object {
+
+        $localconfig = Get-Item "$PSItem/config/localconfig.vdf" -ErrorAction Stop
+        $configobject = ConvertFrom-VDF (Get-Content $localconfig)
+        $PersonaName = $configobject.UserLocalConfigStore.friends.PersonaName
+
+        $Users += @{
+            $PersonaName = $localconfig
+        }
+
+    }
+
+    $localconfig = if ($Users.Count -gt 1){
+        $Selected = (Invoke-CheckBox -Title "Select users to apply launch options on" -Items ([Array]$Users.Keys))
+        if (!$Selected){
+            Write-Host "No user selected, returning."
+            returned
+        }
+        $Users[$Selected]
+    }elseif($Users.Count -eq 1){
+        Write-Host "Configuring launch options on Steam user ``$($Users.Keys)``" -ForegroundColor Green
+        $localconfig # the loop has only went through a single user
+    }else{
+        Write-Host "No accounts found in $SteamPath\userdata to configure, returning."
+        return
+    }
+
+    if(Get-Process steam -ErrorAction Ignore){
+
+        Write-Warning "Steam is still running, launch options may get overwrote"
+
+    }
+
+    Copy-Item -Path $localconfig -Destination "$($localconfig.FullName).bak"
+    Write-Host "localconfig.vdf backed up @ $($localconfig.FullName).bak)"
+
+    $Base = ConvertFrom-VDF (Get-Content $localconfig -ErrorAction Stop | Where-Object {$_}) -ErrorAction Stop
+
+    if (!$base.UserLocalConfigStore.Software.Valve.Steam.apps.$GameID){
+        Write-Host "Set-LaunchOptions: No local config for game ID ```$GameID``"
+        return
+    }
+
+    $base.UserLocalConfigStore.Software.Valve.Steam.apps.$GameID.LaunchOptions = $Options
+
+    ConvertTo-VDF $Base | Set-Content $localconfig -ErrorAction Stop
+
+
+
+}