update wasm build

ocgapi.h

@@ -16,11 +16,16 @@
 #define EXTERN_C
 #endif
 
-#ifdef _WIN32
+#ifndef OCGCORE_API
+#if defined(__EMSCRIPTEN__)
+  #include <emscripten/emscripten.h>
+  #define OCGCORE_API EXTERN_C EMSCRIPTEN_KEEPALIVE
+#elif defined(_WIN32)
 #define OCGCORE_API EXTERN_C __declspec(dllexport)
 #else
 #define OCGCORE_API EXTERN_C __attribute__ ((visibility ("default")))
 #endif
+#endif
 
 #define LEN_FAIL	0
 #define LEN_EMPTY	4

premake/dll.lua

@@ -93,7 +93,7 @@ project "ocgcore"
 
     filter "system:emscripten"
         targetextension ".wasm"
-        linkoptions { "-s MODULARIZE=1", "-s EXPORT_NAME=\"createOcgcore\"", "--no-entry", "-s EXPORTED_FUNCTIONS=[\"_set_script_reader\",\"_set_card_reader\",\"_set_message_handler\",\"_create_duel\",\"_start_duel\",\"_end_duel\",\"_set_player_info\",\"_get_log_message\",\"_get_message\",\"_process\",\"_new_card\",\"_new_tag_card\",\"_query_card\",\"_query_field_count\",\"_query_field_card\",\"_query_field_info\",\"_set_responsei\",\"_set_responseb\",\"_preload_script\"]", "-s ENVIRONMENT=web,node", "-s EXPORTED_RUNTIME_METHODS=[\"ccall\",\"cwrap\",\"addFunction\",\"removeFunction\"]", "-s ALLOW_TABLE_GROWTH=1", "-s ALLOW_MEMORY_GROWTH=1", "-o ../wasm/libocgcore.js" }
+        linkoptions { "-s MODULARIZE=1", "-s EXPORT_NAME=\"createOcgcore\"", "--no-entry", "-s ENVIRONMENT=web,node", "-s EXPORTED_RUNTIME_METHODS=[\"ccall\",\"cwrap\",\"addFunction\",\"removeFunction\"]", "-s ALLOW_TABLE_GROWTH=1", "-s ALLOW_MEMORY_GROWTH=1", "-o ../wasm/libocgcore.js" }
 
 if not WASM and SQLITE3_DIR and os.isdir(SQLITE3_DIR) then
 project "sqlite3"