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Merge pull request #69079 from adamscott/fix-singleton-scene-cyclic-load

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Fix singleton scene cyclic loading
This commit is contained in:
Rémi Verschelde
2022-11-25 19:29:57 +01:00
committed by GitHub
parent 47bd51e70b 69bb7e5b11
commit c7ceb94e37
6 changed files with 91 additions and 79 deletions
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41
main/main.cpp
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@@ -2742,27 +2742,38 @@ bool Main::start() {
for (const KeyValue<StringName, ProjectSettings::AutoloadInfo> &E : autoloads) {
const ProjectSettings::AutoloadInfo &info = E.value;
Ref<Resource> res = ResourceLoader::load(info.path);
ERR_CONTINUE_MSG(res.is_null(), "Can't autoload: " + info.path);
Node *n = nullptr;
Ref<PackedScene> scn = res;
Ref<Script> script_res = res;
if (scn.is_valid()) {
n = scn->instantiate();
} else if (script_res.is_valid()) {
StringName ibt = script_res->get_instance_base_type();
bool valid_type = ClassDB::is_parent_class(ibt, "Node");
ERR_CONTINUE_MSG(!valid_type, "Script does not inherit from Node: " + info.path);
if (ResourceLoader::get_resource_type(info.path) == "PackedScene") {
// Cache the scene reference before loading it (for cyclic references)
Ref<PackedScene> scn;
scn.instantiate();
scn->set_path(info.path);
scn->reload_from_file();
ERR_CONTINUE_MSG(!scn.is_valid(), vformat("Can't autoload: %s.", info.path));
Object *obj = ClassDB::instantiate(ibt);
if (scn.is_valid()) {
n = scn->instantiate();
}
} else {
Ref<Resource> res = ResourceLoader::load(info.path);
ERR_CONTINUE_MSG(res.is_null(), vformat("Can't autoload: %s.", info.path));
ERR_CONTINUE_MSG(!obj, "Cannot instance script for autoload, expected 'Node' inheritance, got: " + String(ibt) + ".");
Ref<Script> script_res = res;
if (script_res.is_valid()) {
StringName ibt = script_res->get_instance_base_type();
bool valid_type = ClassDB::is_parent_class(ibt, "Node");
ERR_CONTINUE_MSG(!valid_type, vformat("Script does not inherit from Node: %s.", info.path));
n = Object::cast_to<Node>(obj);
n->set_script(script_res);
Object *obj = ClassDB::instantiate(ibt);
ERR_CONTINUE_MSG(!obj, vformat("Cannot instance script for autoload, expected 'Node' inheritance, got: %s."));
n = Object::cast_to<Node>(obj);
n->set_script(script_res);
}
}
ERR_CONTINUE_MSG(!n, "Path in autoload not a node or script: " + info.path);
ERR_CONTINUE_MSG(!n, vformat("Path in autoload not a node or script: %s.", info.path));
n->set_name(info.name);
//defer so references are all valid on _ready()