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Add PackedScene::reload_from_file() override

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This commit is contained in:
Adam Scott 2022-11-26 13:46:04 -05:00
parent e29b982dbf
commit a34a26eb66
3 changed files with 56 additions and 1 deletions
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1
modules/gdscript/gdscript_cache.cpp
View file

@ -360,7 +360,6 @@ Ref<PackedScene> GDScriptCache::get_packed_scene(const String &p_path, Error &r_
singleton->packed_scene_cache[p_path] = scene; singleton->packed_scene_cache[p_path] = scene;
singleton->packed_scene_dependencies[p_path].insert(p_owner); singleton->packed_scene_dependencies[p_path].insert(p_owner);
scene->recreate_state();
scene->reload_from_file(); scene->reload_from_file();
return scene; return scene;
} }

53
scene/resources/packed_scene.cpp
View file

@ -1005,6 +1005,37 @@ void SceneState::clear() {
base_scene_idx = -1; base_scene_idx = -1;
} }
Error SceneState::copy_from(const Ref<SceneState> &p_scene_state) {
ERR_FAIL_COND_V(p_scene_state.is_null(), ERR_INVALID_PARAMETER);
clear();
for (const StringName &E : p_scene_state->names) {
names.append(E);
}
for (const Variant &E : p_scene_state->variants) {
variants.append(E);
}
for (const SceneState::NodeData &E : p_scene_state->nodes) {
nodes.append(E);
}
for (const SceneState::ConnectionData &E : p_scene_state->connections) {
connections.append(E);
}
for (KeyValue<NodePath, int> &E : p_scene_state->node_path_cache) {
node_path_cache.insert(E.key, E.value);
}
for (const NodePath &E : p_scene_state->node_paths) {
node_paths.append(E);
}
for (const NodePath &E : p_scene_state->editable_instances) {
editable_instances.append(E);
}
base_scene_idx = p_scene_state->base_scene_idx;
return OK;
}
Ref<SceneState> SceneState::get_base_scene_state() const { Ref<SceneState> SceneState::get_base_scene_state() const {
if (base_scene_idx >= 0) { if (base_scene_idx >= 0) {
Ref<PackedScene> ps = variants[base_scene_idx]; Ref<PackedScene> ps = variants[base_scene_idx];
@ -1737,6 +1768,28 @@ void PackedScene::clear() {
state->clear(); state->clear();
} }
void PackedScene::reload_from_file() {
String path = get_path();
if (!path.is_resource_file()) {
return;
}
Ref<PackedScene> s = ResourceLoader::load(ResourceLoader::path_remap(path), get_class(), ResourceFormatLoader::CACHE_MODE_IGNORE);
if (!s.is_valid()) {
return;
}
// Backup the loaded_state
Ref<SceneState> loaded_state = s->get_state();
// This assigns a new state to s->state
// We do this because of the next step
s->recreate_state();
// This has a side-effect to clear s->state
copy_from(s);
// Then, we copy the backed-up loaded_state to state
state->copy_from(loaded_state);
}
bool PackedScene::can_instantiate() const { bool PackedScene::can_instantiate() const {
return state->can_instantiate(); return state->can_instantiate();
} }

3
scene/resources/packed_scene.h
View file

@ -143,6 +143,7 @@ public:
String get_path() const; String get_path() const;
void clear(); void clear();
Error copy_from(const Ref<SceneState> &p_scene_state);
bool can_instantiate() const; bool can_instantiate() const;
Node *instantiate(GenEditState p_edit_state) const; Node *instantiate(GenEditState p_edit_state) const;
@ -235,6 +236,8 @@ public:
void recreate_state(); void recreate_state();
void replace_state(Ref<SceneState> p_by); void replace_state(Ref<SceneState> p_by);
virtual void reload_from_file() override;
virtual void set_path(const String &p_path, bool p_take_over = false) override; virtual void set_path(const String &p_path, bool p_take_over = false) override;
#ifdef TOOLS_ENABLED #ifdef TOOLS_ENABLED
virtual void set_last_modified_time(uint64_t p_time) override { virtual void set_last_modified_time(uint64_t p_time) override {