Accept global classes for MainLoop type in project settings

`application/run/main_loop_type` setting can handle custom global
classes (`class_name`).  For instance: `MySceneTree`.

The setting's default is changed from empty to `SceneTree` as to give
some hint of what kind of input is accepted for the main loop type.
This commit is contained in:
Andrii Doroshenko (Xrayez) 2020-08-11 20:20:30 +03:00
parent f2149fe763
commit 871b1d76d2

View file

@ -1730,7 +1730,6 @@ bool Main::start() {
}
}
String main_loop_type;
#ifdef TOOLS_ENABLED
if (doc_tool != "") {
Engine::get_singleton()->set_editor_hint(
@ -1825,6 +1824,7 @@ bool Main::start() {
if (editor) {
main_loop = memnew(SceneTree);
};
String main_loop_type = GLOBAL_DEF("application/run/main_loop_type", "SceneTree");
if (script != "") {
Ref<Script> script_res = ResourceLoader::load(script);
@ -1855,9 +1855,23 @@ bool Main::start() {
} else {
return false;
}
} else {
main_loop_type = GLOBAL_DEF("application/run/main_loop_type", "");
} else { // Not based on script path.
if (!editor && !ClassDB::class_exists(main_loop_type) && ScriptServer::is_global_class(main_loop_type)) {
String script_path = ScriptServer::get_global_class_path(main_loop_type);
Ref<Script> script_res = ResourceLoader::load(script_path);
StringName script_base = ScriptServer::get_global_class_native_base(main_loop_type);
Object *obj = ClassDB::instance(script_base);
MainLoop *script_loop = Object::cast_to<MainLoop>(obj);
if (!script_loop) {
if (obj) {
memdelete(obj);
}
DisplayServer::get_singleton()->alert("Error: Invalid MainLoop script base type: " + script_base);
ERR_FAIL_V_MSG(false, vformat("The global class %s does not inherit from SceneTree or MainLoop.", main_loop_type));
}
script_loop->set_init_script(script_res);
main_loop = script_loop;
}
}
if (!main_loop && main_loop_type == "") {