3 files changed, 104 insertions, 2 deletions

diff --git a/core/project_settings.cpp b/core/project_settings.cpp
index 7f9f4b638a..b1fd66e566 100644
--- a/core/project_settings.cpp
+++ b/core/project_settings.cpp
@@ -515,7 +515,11 @@ Error ProjectSettings::_load_settings_text(const String p_path) {
 				}
 			} else {
 				// config_version is checked and dropped
-				set(section + "/" + assign, value);
+				if (section == String()) {
+					set(assign, value);
+				} else {
+					set(section + "/" + assign, value);
+				}
 			}
 		} else if (next_tag.name != String()) {
 			section = next_tag.name;
diff --git a/core/script_language.cpp b/core/script_language.cpp
index acbe3b34db..37ba3cfc62 100644
--- a/core/script_language.cpp
+++ b/core/script_language.cpp
@@ -29,6 +29,7 @@
 /*************************************************************************/
 
 #include "script_language.h"
+#include "project_settings.h"
 
 ScriptLanguage *ScriptServer::_languages[MAX_LANGUAGES];
 int ScriptServer::_language_count = 0;
@@ -103,6 +104,20 @@ void ScriptServer::unregister_language(ScriptLanguage *p_language) {
 
 void ScriptServer::init_languages() {
 
+	{ //load global classes
+		global_classes_clear();
+		if (ProjectSettings::get_singleton()->has_setting("_global_script_classes")) {
+			Array script_classes = ProjectSettings::get_singleton()->get("_global_script_classes");
+
+			for (int i = 0; i < script_classes.size(); i++) {
+				Dictionary c = script_classes[i];
+				if (!c.has("class") || !c.has("language") || !c.has("path") || !c.has("base"))
+					continue;
+				add_global_class(c["class"], c["base"], c["language"], c["path"]);
+			}
+		}
+	}
+
 	for (int i = 0; i < _language_count; i++) {
 		_languages[i]->init();
 	}
@@ -113,6 +128,7 @@ void ScriptServer::finish_languages() {
 	for (int i = 0; i < _language_count; i++) {
 		_languages[i]->finish();
 	}
+	global_classes_clear();
 }
 
 void ScriptServer::set_reload_scripts_on_save(bool p_enable) {
@@ -139,6 +155,67 @@ void ScriptServer::thread_exit() {
 	}
 }
 
+HashMap<StringName, ScriptServer::GlobalScriptClass> ScriptServer::global_classes;
+
+void ScriptServer::global_classes_clear() {
+	global_classes.clear();
+}
+
+void ScriptServer::add_global_class(const StringName &p_class, const StringName &p_base, const StringName &p_language, const String &p_path) {
+	GlobalScriptClass g;
+	g.language = p_language;
+	g.path = p_path;
+	g.base = p_base;
+	global_classes[p_class] = g;
+}
+void ScriptServer::remove_global_class(const StringName &p_class) {
+	global_classes.erase(p_class);
+}
+bool ScriptServer::is_global_class(const StringName &p_class) {
+	return global_classes.has(p_class);
+}
+StringName ScriptServer::get_global_class_language(const StringName &p_class) {
+	ERR_FAIL_COND_V(!global_classes.has(p_class), StringName());
+	return global_classes[p_class].language;
+}
+String ScriptServer::get_global_class_path(const String &p_class) {
+	ERR_FAIL_COND_V(!global_classes.has(p_class), String());
+	return global_classes[p_class].path;
+}
+
+StringName ScriptServer::get_global_class_base(const String &p_class) {
+	ERR_FAIL_COND_V(!global_classes.has(p_class), String());
+	return global_classes[p_class].base;
+}
+void ScriptServer::get_global_class_list(List<StringName> *r_global_classes) {
+	const StringName *K = NULL;
+	List<StringName> classes;
+	while ((K = global_classes.next(K))) {
+		classes.push_back(*K);
+	}
+	classes.sort_custom<StringName::AlphCompare>();
+	for (List<StringName>::Element *E = classes.front(); E; E = E->next()) {
+		r_global_classes->push_back(E->get());
+	}
+}
+void ScriptServer::save_global_classes() {
+	List<StringName> gc;
+	get_global_class_list(&gc);
+	Array gcarr;
+	for (List<StringName>::Element *E = gc.front(); E; E = E->next()) {
+		Dictionary d;
+		d["class"] = E->get();
+		d["language"] = global_classes[E->get()].language;
+		d["path"] = global_classes[E->get()].path;
+		d["base"] = global_classes[E->get()].base;
+		gcarr.push_back(d);
+	}
+
+	ProjectSettings::get_singleton()->set("_global_script_classes", gcarr);
+	ProjectSettings::get_singleton()->save();
+}
+
+////////////////////
 void ScriptInstance::get_property_state(List<Pair<StringName, Variant> > &state) {
 
 	List<PropertyInfo> pinfo;
diff --git a/core/script_language.h b/core/script_language.h
index e7748f93e2..2950b35109 100644
--- a/core/script_language.h
+++ b/core/script_language.h
@@ -54,6 +54,14 @@ class ScriptServer {
 	static bool scripting_enabled;
 	static bool reload_scripts_on_save;
 
+	struct GlobalScriptClass {
+		StringName language;
+		String path;
+		String base;
+	};
+
+	static HashMap<StringName, GlobalScriptClass> global_classes;
+
 public:
 	static ScriptEditRequestFunction edit_request_func;
 
@@ -70,6 +78,16 @@ public:
 	static void thread_enter();
 	static void thread_exit();
 
+	static void global_classes_clear();
+	static void add_global_class(const StringName &p_class, const StringName &p_base, const StringName &p_language, const String &p_path);
+	static void remove_global_class(const StringName &p_class);
+	static bool is_global_class(const StringName &p_class);
+	static StringName get_global_class_language(const StringName &p_class);
+	static String get_global_class_path(const String &p_class);
+	static StringName get_global_class_base(const String &p_class);
+	static void get_global_class_list(List<StringName> *r_global_classes);
+	static void save_global_classes();
+
 	static void init_languages();
 	static void finish_languages();
 };
@@ -285,7 +303,10 @@ public:
 
 	virtual void frame();
 
-	virtual ~ScriptLanguage(){};
+	virtual bool handles_global_class_type(const String &p_type) const { return false; }
+	virtual String get_global_class_name(const String &p_path, String *r_base_type = NULL) const { return String(); }
+
+	virtual ~ScriptLanguage() {}
 };
 
 extern uint8_t script_encryption_key[32];