Godot 项目初始化：C++ GDExtension 骨架

CMakeLists.txt

@@ -0,0 +1,41 @@
+cmake_minimum_required(VERSION 3.24)
+project(marry)
+
+# 标准 C++17
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
+
+# 引用 godot-cpp（CMake 方式）
+set(GODOT_CPP_PATH "${CMAKE_CURRENT_SOURCE_DIR}/godot-cpp")
+add_subdirectory("${GODOT_CPP_PATH}")
+
+# 扩展库本体
+add_library(marry SHARED
+    src/register_types.cpp
+    src/example.cpp
+    src/example.h
+    src/register_types.h
+)
+
+target_include_directories(marry PRIVATE src)
+
+# 链接 godot-cpp
+target_link_libraries(marry PRIVATE godot-cpp)
+
+# 输出到 bin/ 目录（Godot 从那里加载；VS 里编译后 dll 直接落到 res://bin/）
+set_target_properties(marry PROPERTIES
+    LIBRARY_OUTPUT_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/bin"
+    RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/bin"
+    ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/bin"
+    PREFIX ""
+)
+
+# VS 多配置生成器会输出到 bin/Release/ 等子目录，这里复制到 bin/ 根目录
+# 保证 .gdextension 里 res://bin/marry.dll 始终能找到
+add_custom_command(TARGET marry POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy_if_different
+        "$<TARGET_FILE:marry>"
+        "${CMAKE_CURRENT_SOURCE_DIR}/bin/marry.dll"
+    COMMENT "复制 marry.dll 到 bin/ 根目录"
+)