replace with multiplayer-coop files

src/TEST_MULTIPLAYER.bat

@@ -0,0 +1,44 @@
+@echo off
+REM Easy Multiplayer Testing Script for Windows
+REM This script launches 3 instances: 1 host and 2 clients
+
+echo Starting Multiplayer Test...
+echo.
+
+REM Set your Godot executable path here
+set GODOT_PATH="C:\Program Files\Godot\godot.exe"
+
+REM Set your project path
+set PROJECT_PATH="C:\dev\godot\multiplayer-coop"
+
+REM Check if Godot exists
+if not exist %GODOT_PATH% (
+    echo Error: Godot not found at %GODOT_PATH%
+    echo Please edit this script and set the correct GODOT_PATH
+    pause
+    exit /b 1
+)
+
+echo [1/3] Starting HOST...
+start "Multiplayer Host" %GODOT_PATH% --path %PROJECT_PATH% -- --host
+
+REM Wait a bit for host to start
+timeout /t 2 /nobreak >nul
+
+echo [2/3] Starting CLIENT 1...
+start "Multiplayer Client 1" %GODOT_PATH% --path %PROJECT_PATH% -- --join
+
+REM Wait a bit
+timeout /t 1 /nobreak >nul
+
+echo [3/3] Starting CLIENT 2...
+start "Multiplayer Client 2" %GODOT_PATH% --path %PROJECT_PATH% -- --join
+
+echo.
+echo All instances launched!
+echo - 1 Host
+echo - 2 Clients
+echo.
+echo Close this window or press any key to exit...
+pause >nul
+