Plugging into a harness

harness-shim.ps1 replaces the usual helpers of LeviLauncher harnesses (Focus-Game, Assert-GameForeground, Set-GameWindowSize, Move-Mouse, Click, Scroll, Press-Key, Type-Text, Get-ClientBitmap, same parameters) with versions that talk to the game over its control pipe, and wraps Start-Game/Stop-Game. Scenarios do not change. Dot-source it right after the harness's own lib.ps1, at script level:

powershell

. "$PSScriptRoot/lib.ps1"
. "$beddDir\harness-shim.ps1"
Register-BeDDNative ([MyE2E.Native])   # optional, see below
# after deploying your mod and moving the other mods aside:
Install-BeDDMod -ModsDir $script:ModsDir -PipeName 'BeDD-<instance>'
# ... and in finally, once the game is closed:
Uninstall-BeDDMod -ModsDir $script:ModsDir

$beddDir is where Be.D.D. is unpacked; the harness can fetch it itself. Initialize-BeDDInstance [-Slot N] returns the instance to use (Dir, ModsDir, PipeName) and sets up whatever the PC still lacks.

Start games with Start-BeDDGame.ps1 rather than the launcher, and keep BeDD out of any "move other mods aside" step: it is installed fresh each run and removed afterwards (a leftover copy would make a normally started game show up in the manager window too).

What the shim adds

Function
`Install-BeDDMod -ModsDir <dir> [-PipeName p] [-Trace]`	copies the module into `<dir>\BeDD` with its `config.json` (window size from `$script:WindowW`/`$script:WindowH`, default 1600×900; `managerScript` for starting the manager window), the game then runs headless inside the manager window, switches LeviLamina to its built-in crash logger and points the client at the pipe
`Uninstall-BeDDMod -ModsDir <dir>`	removes the module again, retrying while the game still holds the DLL. Call it in `finally`
`Set-WorldSinglePlayer <worldDir>`	makes a test world single-player (no multiplayer, LAN, Xbox Live or platform broadcast). Call it right after restoring a test world
`Register-BeDDNative <type>`	redirects the input methods of the harness's own native class (below)
`Start-Game` / `Stop-Game`	wrapped: the game holds the shared signaling lock (exclusive with `$script:ExclusiveSignaling = $true`) while it runs, the manager window is started unless it runs (`Start-Game` throws if it does not start), and the foreground goes back to where you were if the game takes it while starting

A harness's own input class

If your scenarios call the harness's own input class directly ([MyE2E.Native]::Key(0x10, $false) and friends), give it these fields and a one-line guard at the top of each method; Register-BeDDNative fills them:

csharp

public static Action<ushort, bool> KeyRedirect;          // (vk, up)
public static Action<int, bool>    MouseButtonRedirect;  // (0 left / 1 right / 2 middle, up)
public static Action<int>          WheelRedirect;        // (delta, 120 per notch)
public static Action<char>         UnicodeRedirect;
public static Action<int, int>     MoveRelativeRedirect; // camera
public static void Key(ushort vk, bool up) { if (KeyRedirect != null) { KeyRedirect(vk, up); return; } /* SendInput as before */ }

Examples

BeetrootSkin and AlleviatedBackpacks have complete harnesses to copy from.