add logging functions to the library 'debug'

src/logic/scripting/lua/lua_extensions.cpp

@@ -0,0 +1,39 @@
+#include "api_lua.hpp"
+
+#include "../../../debug/Logger.hpp"
+
+static debug::Logger logger("lua-debug");
+
+static int l_debug_error(lua::State* L) {
+    auto text = lua::require_string(L, 1);
+    logger.error() << text;
+    return 0;
+}
+
+static int l_debug_warning(lua::State* L) {
+    auto text = lua::require_string(L, 1);
+    logger.warning() << text;
+    return 0;
+}
+
+static int l_debug_log(lua::State* L) {
+    auto text = lua::require_string(L, 1);
+    logger.info() << text;
+    return 0;
+}
+
+void initialize_libs_extends(lua::State* L) {
+    if (lua::getglobal(L, "debug")) {
+
+        lua::pushcfunction(L, lua::wrap<l_debug_error>);
+        lua::setfield(L, "error");
+
+        lua::pushcfunction(L, lua::wrap<l_debug_warning>);
+        lua::setfield(L, "warning");
+
+        lua::pushcfunction(L, lua::wrap<l_debug_log>);
+        lua::setfield(L, "log");
+
+        lua::pop(L);
+    }
+}