add binding for python

bindings/CMakeLists.txt

@@ -0,0 +1,20 @@
+cmake_minimum_required(VERSION 3.12)
+project(hakoniwa_multi_language_project)
+
+find_package(SWIG REQUIRED)
+include(${SWIG_USE_FILE})
+set(CMAKE_SWIG_FLAGS "")
+
+# ヘッダーファイルのインクルードパスを設定
+include_directories(${CMAKE_CURRENT_SOURCE_DIR}/../src/include)
+# SWIGインターフェースファイルの相対パスを設定
+set(SWIG_INTERFACE_FILE ${CMAKE_CURRENT_SOURCE_DIR}/hako_asset.i)
+set_source_files_properties(${SWIG_INTERFACE_FILE} PROPERTIES CPLUSPLUS ON)
+# ライブラリのフルパスを検索
+find_library(ASSETS_LIBRARY
+    NAMES assets
+    PATHS /usr/local/lib/hakoniwa
+)
+
+add_subdirectory(python)
+

bindings/hako_asset.i

@@ -0,0 +1,26 @@
+%module hako_asset
+
+%{
+#include "hako_asset.h"
+%}
+
+%include "hako_primitive_types.h"
+
+
+%typemap(in) hako_asset_callbacks_t *callbacks (void *ptr) {
+    $1 = (hako_asset_callbacks_t *)malloc(sizeof(hako_asset_callbacks_t));
+    if (!$1) {
+        PyErr_NoMemory();
+        return NULL;
+    }
+    $1->on_initialize = NULL;
+    $1->on_simulation_step = NULL;
+    $1->on_manual_timing_control = NULL;
+    $1->on_reset = NULL;
+    ptr = $1;
+}
+
+%typemap(freearg) hako_asset_callbacks_t *callbacks {
+    free($1);
+}
+%include "hako_asset.h"

bindings/python/CMakeLists.txt

@@ -0,0 +1,8 @@
+cmake_minimum_required(VERSION 3.12)
+project(hakoniwa_python_swig_project)
+
+find_package(PythonLibs REQUIRED)
+include_directories(${PYTHON_INCLUDE_PATH})
+
+swig_add_library(hako_asset_py LANGUAGE python SOURCES ${SWIG_INTERFACE_FILE})
+swig_link_libraries(hako_asset_py ${PYTHON_LIBRARIES} ${ASSETS_LIBRARY})