Marry 乒乓球游戏：Godot 4.6 + C++ GDExtension

build-pingpang.bat

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+@echo off
+call "D:\Visual Studio\IDE\VC\Auxiliary\Build\vcvars64.bat" >nul 2>&1
+cd /d E:\newgame\marry
+echo === CMake Configure (VS 2026) ===
+"D:\Visual Studio\IDE\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin\cmake.exe" -S . -B build -G "Visual Studio 18 2026" -A x64
+echo === Build ===
+"D:\Visual Studio\IDE\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin\cmake.exe" --build build --config Release
+echo === Result ===
+dir E:\newgame\marry\main\bin