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faddd60c40e0842a140c3243bf0ba4fa7a5a85f2
godot/scene/main/node.h
Juan faddd60c40 Add unique Node IDs to support base and instantiated scene refactorings 
The main goal of this PR is to safeguard when a base or instantiated scene changes (nodes renamed, moved or readded),
that the hierarchy is still maintained and the node and its overridden properties can be preserved.

What it does:
* Implements unique node IDs.
* These IDs act as a fallback to names when saving.
* The IDs are **USED AS A FALLBACK**, so they are just an addition. It should not break any current existing scene.
* If a scene renames or moves a node, inherited or instantiated scenes will no longer lose reference to it.

Unlike the previous approach, this one is intended to be a fallback, only used if the node is not found.
This makes it safer to implement and ensure that, at worst case, we fail to find the node, but nothing breaks.
2025-10-06 12:55:38 +02:00

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/**************************************************************************/
/* node.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#pragma once
#include "core/string/node_path.h"
#include "core/templates/iterable.h"
#include "core/variant/typed_array.h"
#include "scene/main/scene_tree.h"
#include "scene/scene_string_names.h"
class Viewport;
class Window;
class SceneState;
class Tween;
class PropertyTweener;
SAFE_FLAG_TYPE_PUN_GUARANTEES
SAFE_NUMERIC_TYPE_PUN_GUARANTEES(uint32_t)
class Node : public Object {
GDCLASS(Node, Object);
protected:
// During group processing, these are thread-safe.
// Outside group processing, these avoid the cost of sync by working as plain primitive types.
union MTFlag {
SafeFlag mt;
bool st;
MTFlag() :
mt{} {}
};
template <typename T>
union MTNumeric {
SafeNumeric<T> mt;
T st;
MTNumeric() :
mt{} {}
};
public:
static constexpr AncestralClass static_ancestral_class = AncestralClass::NODE;
// N.B. Any enum stored as a bitfield should be specified as UNSIGNED to work around
// some compilers trying to store it as signed, and requiring 1 more bit than necessary.
enum ProcessMode : unsigned int {
PROCESS_MODE_INHERIT, // same as parent node
PROCESS_MODE_PAUSABLE, // process only if not paused
PROCESS_MODE_WHEN_PAUSED, // process only if paused
PROCESS_MODE_ALWAYS, // process always
PROCESS_MODE_DISABLED, // never process
};
enum ProcessThreadGroup {
PROCESS_THREAD_GROUP_INHERIT,
PROCESS_THREAD_GROUP_MAIN_THREAD,
PROCESS_THREAD_GROUP_SUB_THREAD,
};
enum ProcessThreadMessages {
FLAG_PROCESS_THREAD_MESSAGES = 1,
FLAG_PROCESS_THREAD_MESSAGES_PHYSICS = 2,
FLAG_PROCESS_THREAD_MESSAGES_ALL = 3,
};
enum PhysicsInterpolationMode : unsigned int {
PHYSICS_INTERPOLATION_MODE_INHERIT,
PHYSICS_INTERPOLATION_MODE_ON,
PHYSICS_INTERPOLATION_MODE_OFF,
};
enum DuplicateFlags {
DUPLICATE_SIGNALS = 1,
DUPLICATE_GROUPS = 2,
DUPLICATE_SCRIPTS = 4,
DUPLICATE_USE_INSTANTIATION = 8,
#ifdef TOOLS_ENABLED
DUPLICATE_FROM_EDITOR = 16,
#endif
};
enum NameCasing {
NAME_CASING_PASCAL_CASE,
NAME_CASING_CAMEL_CASE,
NAME_CASING_SNAKE_CASE,
NAME_CASING_KEBAB_CASE,
};
enum InternalMode {
INTERNAL_MODE_DISABLED,
INTERNAL_MODE_FRONT,
INTERNAL_MODE_BACK,
};
enum AutoTranslateMode : unsigned int {
AUTO_TRANSLATE_MODE_INHERIT,
AUTO_TRANSLATE_MODE_ALWAYS,
AUTO_TRANSLATE_MODE_DISABLED,
};
struct Comparator {
bool operator()(const Node *p_a, const Node *p_b) const { return p_b->is_greater_than(p_a); }
};
#ifdef DEBUG_ENABLED
static SafeNumeric<uint64_t> total_node_count;
#endif
enum {
UNIQUE_SCENE_ID_UNASSIGNED = 0
};
void _update_process(bool p_enable, bool p_for_children);
struct ChildrenIterator {
_FORCE_INLINE_ Node *&operator*() const { return *_ptr; }
_FORCE_INLINE_ Node **operator->() const { return _ptr; }
_FORCE_INLINE_ ChildrenIterator &operator++() {
_ptr++;
return *this;
}
_FORCE_INLINE_ ChildrenIterator &operator--() {
_ptr--;
return *this;
}
_FORCE_INLINE_ bool operator==(const ChildrenIterator &b) const { return _ptr == b._ptr; }
_FORCE_INLINE_ bool operator!=(const ChildrenIterator &b) const { return _ptr != b._ptr; }
ChildrenIterator(Node **p_ptr) { _ptr = p_ptr; }
ChildrenIterator() {}
ChildrenIterator(const ChildrenIterator &p_it) { _ptr = p_it._ptr; }
private:
Node **_ptr = nullptr;
};
private:
struct GroupData {
bool persistent = false;
SceneTree::Group *group = nullptr;
};
struct ComparatorByIndex {
bool operator()(const Node *p_left, const Node *p_right) const {
static const uint32_t order[3] = { 1, 0, 2 };
uint32_t order_left = order[p_left->data.internal_mode];
uint32_t order_right = order[p_right->data.internal_mode];
if (order_left == order_right) {
return p_left->data.index < p_right->data.index;
}
return order_left < order_right;
}
};
struct ComparatorWithPriority {
bool operator()(const Node *p_a, const Node *p_b) const { return p_b->data.process_priority == p_a->data.process_priority ? p_b->is_greater_than(p_a) : p_b->data.process_priority > p_a->data.process_priority; }
};
struct ComparatorWithPhysicsPriority {
bool operator()(const Node *p_a, const Node *p_b) const { return p_b->data.physics_process_priority == p_a->data.physics_process_priority ? p_b->is_greater_than(p_a) : p_b->data.physics_process_priority > p_a->data.physics_process_priority; }
};
// This Data struct is to avoid namespace pollution in derived classes.
struct Data {
String scene_file_path;
Ref<SceneState> instance_state;
Ref<SceneState> inherited_state;
Node *parent = nullptr;
Node *owner = nullptr;
HashMap<StringName, Node *> children;
mutable bool children_cache_dirty = true;
mutable LocalVector<Node *> children_cache;
HashMap<StringName, Node *> owned_unique_nodes;
bool unique_name_in_owner = false;
InternalMode internal_mode = INTERNAL_MODE_DISABLED;
mutable int internal_children_front_count_cache = 0;
mutable int internal_children_back_count_cache = 0;
mutable int external_children_count_cache = 0;
mutable int index = -1; // relative to front, normal or back.
int32_t depth = -1;
int blocked = 0; // Safeguard that throws an error when attempting to modify the tree in a harmful way while being traversed.
StringName name;
SceneTree *tree = nullptr;
String editor_description;
Viewport *viewport = nullptr;
mutable RID accessibility_element;
HashMap<StringName, GroupData> grouped;
List<Node *>::Element *OW = nullptr; // Owned element.
List<Node *> owned;
Node *process_owner = nullptr;
ProcessThreadGroup process_thread_group = PROCESS_THREAD_GROUP_INHERIT;
Node *process_thread_group_owner = nullptr;
int process_thread_group_order = 0;
BitField<ProcessThreadMessages> process_thread_messages = {};
void *process_group = nullptr; // to avoid cyclic dependency
int multiplayer_authority = 1; // Server by default.
Variant rpc_config;
// Variables used to properly sort the node when processing, ignored otherwise.
int process_priority = 0;
int physics_process_priority = 0;
// Keep bitpacked values together to get better packing.
ProcessMode process_mode : 3;
PhysicsInterpolationMode physics_interpolation_mode : 2;
AutoTranslateMode auto_translate_mode : 2;
bool physics_process : 1;
bool process : 1;
bool physics_process_internal : 1;
bool process_internal : 1;
bool input : 1;
bool shortcut_input : 1;
bool unhandled_input : 1;
bool unhandled_key_input : 1;
// Physics interpolation can be turned on and off on a per node basis.
// This only takes effect when the SceneTree (or project setting) physics interpolation
// is switched on.
bool physics_interpolated : 1;
// We can auto-reset physics interpolation when e.g. adding a node for the first time.
bool physics_interpolation_reset_requested : 1;
// Most nodes need not be interpolated in the scene tree, physics interpolation
// is normally only needed in the RenderingServer. However if we need to read the
// interpolated transform of a node in the SceneTree, it is necessary to duplicate
// the interpolation logic client side, in order to prevent stalling the RenderingServer
// by reading back.
bool physics_interpolated_client_side : 1;
// For certain nodes (e.g. CPU particles in global mode)
// it can be useful to not send the instance transform to the
// RenderingServer, and specify the mesh in world space.
bool use_identity_transform : 1;
bool use_placeholder : 1;
bool display_folded : 1;
bool editable_instance : 1;
bool ready_notified : 1;
bool ready_first : 1;
mutable bool is_auto_translating : 1;
mutable bool is_auto_translate_dirty : 1;
mutable bool is_translation_domain_inherited : 1;
mutable bool is_translation_domain_dirty : 1;
int32_t unique_scene_id = UNIQUE_SCENE_ID_UNASSIGNED;
mutable NodePath *path_cache = nullptr;
} data;
String _get_tree_string_pretty(const String &p_prefix, bool p_last);
String _get_tree_string(const Node *p_node);
Node *_get_child_by_name(const StringName &p_name) const;
void _replace_connections_target(Node *p_new_target);
void _validate_child_name(Node *p_child, bool p_force_human_readable = false);
void _generate_serial_child_name(const Node *p_child, StringName &name) const;
void _propagate_reverse_notification(int p_notification);
void _propagate_deferred_notification(int p_notification, bool p_reverse);
void _propagate_enter_tree();
void _propagate_ready();
void _propagate_exit_tree();
void _propagate_after_exit_tree();
void _propagate_physics_interpolated(bool p_interpolated);
void _propagate_physics_interpolation_reset_requested(bool p_requested);
void _propagate_process_owner(Node *p_owner, int p_pause_notification, int p_enabled_notification);
void _propagate_groups_dirty();
void _propagate_translation_domain_dirty();
Array _get_node_and_resource(const NodePath &p_path);
void _duplicate_properties(const Node *p_root, const Node *p_original, Node *p_copy, int p_flags) const;
void _duplicate_signals(const Node *p_original, Node *p_copy) const;
Node *_duplicate(int p_flags, HashMap<const Node *, Node *> *r_duplimap = nullptr) const;
TypedArray<StringName> _get_groups() const;
Error _rpc_bind(const Variant **p_args, int p_argcount, Callable::CallError &r_error);
Error _rpc_id_bind(const Variant **p_args, int p_argcount, Callable::CallError &r_error);
friend class SceneTree;
void _set_tree(SceneTree *p_tree);
void _propagate_pause_notification(bool p_enable);
void _propagate_suspend_notification(bool p_enable);
_FORCE_INLINE_ bool _can_process(bool p_paused) const;
_FORCE_INLINE_ bool _is_enabled() const;
void _release_unique_name_in_owner();
void _acquire_unique_name_in_owner();
void _clean_up_owner();
_FORCE_INLINE_ void _update_children_cache() const {
if (unlikely(data.children_cache_dirty)) {
_update_children_cache_impl();
}
}
void _update_children_cache_impl() const;
// Process group management
void _add_process_group();
void _remove_process_group();
void _add_to_process_thread_group();
void _remove_from_process_thread_group();
void _remove_tree_from_process_thread_group();
void _add_tree_to_process_thread_group(Node *p_owner);
static thread_local Node *current_process_thread_group;
Variant _call_deferred_thread_group_bind(const Variant **p_args, int p_argcount, Callable::CallError &r_error);
Variant _call_thread_safe_bind(const Variant **p_args, int p_argcount, Callable::CallError &r_error);
// Editor only signal to keep the SceneTreeEditor in sync.
#ifdef TOOLS_ENABLED
void _emit_editor_state_changed();
#else
void _emit_editor_state_changed() {}
#endif
protected:
void _block() { data.blocked++; }
void _unblock() { data.blocked--; }
void _notification(int p_notification);
virtual void _physics_interpolated_changed();
virtual void add_child_notify(Node *p_child);
virtual void remove_child_notify(Node *p_child);
virtual void move_child_notify(Node *p_child);
virtual void owner_changed_notify();
void _propagate_replace_owner(Node *p_owner, Node *p_by_owner);
static void _bind_methods();
static String _get_name_num_separator();
friend class SceneState;
void _add_child_nocheck(Node *p_child, const StringName &p_name, InternalMode p_internal_mode = INTERNAL_MODE_DISABLED);
void _set_owner_nocheck(Node *p_owner);
void _set_name_nocheck(const StringName &p_name);
void _set_physics_interpolated_client_side(bool p_enable) { data.physics_interpolated_client_side = p_enable; }
bool _is_physics_interpolated_client_side() const { return data.physics_interpolated_client_side; }
void _set_physics_interpolation_reset_requested(bool p_enable) { data.physics_interpolation_reset_requested = p_enable; }
bool _is_physics_interpolation_reset_requested() const { return data.physics_interpolation_reset_requested; }
void _set_use_identity_transform(bool p_enable) { data.use_identity_transform = p_enable; }
bool _is_using_identity_transform() const { return data.use_identity_transform; }
int32_t _get_scene_tree_depth() const { return data.depth; }
//call from SceneTree
void _call_input(const Ref<InputEvent> &p_event);
void _call_shortcut_input(const Ref<InputEvent> &p_event);
void _call_unhandled_input(const Ref<InputEvent> &p_event);
void _call_unhandled_key_input(const Ref<InputEvent> &p_event);
void _validate_property(PropertyInfo &p_property) const;
Variant _get_node_rpc_config_bind() const {
return get_node_rpc_config().duplicate(true);
}
protected:
virtual bool _uses_signal_mutex() const override { return false; } // Node uses thread guards instead.
virtual void input(const Ref<InputEvent> &p_event);
virtual void shortcut_input(const Ref<InputEvent> &p_key_event);
virtual void unhandled_input(const Ref<InputEvent> &p_event);
virtual void unhandled_key_input(const Ref<InputEvent> &p_key_event);
GDVIRTUAL1(_process, double)
GDVIRTUAL1(_physics_process, double)
GDVIRTUAL0(_enter_tree)
GDVIRTUAL0(_exit_tree)
GDVIRTUAL0(_ready)
GDVIRTUAL0RC(Vector<String>, _get_accessibility_configuration_warnings)
GDVIRTUAL0RC(Vector<String>, _get_configuration_warnings)
GDVIRTUAL1(_input, Ref<InputEvent>)
GDVIRTUAL1(_shortcut_input, Ref<InputEvent>)
GDVIRTUAL1(_unhandled_input, Ref<InputEvent>)
GDVIRTUAL1(_unhandled_key_input, Ref<InputEvent>)
GDVIRTUAL0RC(RID, _get_focused_accessibility_element)
#ifndef DISABLE_DEPRECATED
void _set_name_bind_compat_76560(const String &p_name);
Variant _get_rpc_config_bind_compat_106848() const;
static void _bind_compatibility_methods();
#endif
public:
enum {
// You can make your own, but don't use the same numbers as other notifications in other nodes.
NOTIFICATION_ENTER_TREE = 10,
NOTIFICATION_EXIT_TREE = 11,
NOTIFICATION_MOVED_IN_PARENT = 12,
NOTIFICATION_READY = 13,
NOTIFICATION_PAUSED = 14,
NOTIFICATION_UNPAUSED = 15,
NOTIFICATION_PHYSICS_PROCESS = 16,
NOTIFICATION_PROCESS = 17,
NOTIFICATION_PARENTED = 18,
NOTIFICATION_UNPARENTED = 19,
NOTIFICATION_SCENE_INSTANTIATED = 20,
NOTIFICATION_DRAG_BEGIN = 21,
NOTIFICATION_DRAG_END = 22,
NOTIFICATION_PATH_RENAMED = 23,
NOTIFICATION_CHILD_ORDER_CHANGED = 24,
NOTIFICATION_INTERNAL_PROCESS = 25,
NOTIFICATION_INTERNAL_PHYSICS_PROCESS = 26,
NOTIFICATION_POST_ENTER_TREE = 27,
NOTIFICATION_DISABLED = 28,
NOTIFICATION_ENABLED = 29,
NOTIFICATION_RESET_PHYSICS_INTERPOLATION = 2001, // A GodotSpace Odyssey.
// Keep these linked to Node.
NOTIFICATION_ACCESSIBILITY_UPDATE = 3000,
NOTIFICATION_ACCESSIBILITY_INVALIDATE = 3001,
NOTIFICATION_WM_MOUSE_ENTER = 1002,
NOTIFICATION_WM_MOUSE_EXIT = 1003,
NOTIFICATION_WM_WINDOW_FOCUS_IN = 1004,
NOTIFICATION_WM_WINDOW_FOCUS_OUT = 1005,
NOTIFICATION_WM_CLOSE_REQUEST = 1006,
NOTIFICATION_WM_GO_BACK_REQUEST = 1007,
NOTIFICATION_WM_SIZE_CHANGED = 1008,
NOTIFICATION_WM_DPI_CHANGE = 1009,
NOTIFICATION_VP_MOUSE_ENTER = 1010,
NOTIFICATION_VP_MOUSE_EXIT = 1011,
NOTIFICATION_WM_POSITION_CHANGED = 1012,
NOTIFICATION_OS_MEMORY_WARNING = MainLoop::NOTIFICATION_OS_MEMORY_WARNING,
NOTIFICATION_TRANSLATION_CHANGED = MainLoop::NOTIFICATION_TRANSLATION_CHANGED,
NOTIFICATION_WM_ABOUT = MainLoop::NOTIFICATION_WM_ABOUT,
NOTIFICATION_CRASH = MainLoop::NOTIFICATION_CRASH,
NOTIFICATION_OS_IME_UPDATE = MainLoop::NOTIFICATION_OS_IME_UPDATE,
NOTIFICATION_APPLICATION_RESUMED = MainLoop::NOTIFICATION_APPLICATION_RESUMED,
NOTIFICATION_APPLICATION_PAUSED = MainLoop::NOTIFICATION_APPLICATION_PAUSED,
NOTIFICATION_APPLICATION_FOCUS_IN = MainLoop::NOTIFICATION_APPLICATION_FOCUS_IN,
NOTIFICATION_APPLICATION_FOCUS_OUT = MainLoop::NOTIFICATION_APPLICATION_FOCUS_OUT,
NOTIFICATION_TEXT_SERVER_CHANGED = MainLoop::NOTIFICATION_TEXT_SERVER_CHANGED,
// Editor specific node notifications
NOTIFICATION_EDITOR_PRE_SAVE = 9001,
NOTIFICATION_EDITOR_POST_SAVE = 9002,
NOTIFICATION_SUSPENDED = 9003,
NOTIFICATION_UNSUSPENDED = 9004
};
/* NODE/TREE */
StringName get_name() const;
String get_description() const;
void set_name(const StringName &p_name);
InternalMode get_internal_mode() const;
void add_child(Node *p_child, bool p_force_readable_name = false, InternalMode p_internal = INTERNAL_MODE_DISABLED);
void add_sibling(Node *p_sibling, bool p_force_readable_name = false);
void remove_child(Node *p_child);
/// Optimal way to iterate the children of this node.
/// The caller is responsible to ensure:
/// - The thread has the rights to access the node (is_accessible_from_caller_thread() == true).
/// - No children are inserted, removed, or have their index changed during iteration.
template <bool p_include_internal = true>
Iterable<ChildrenIterator> iterate_children() const;
int get_child_count(bool p_include_internal = true) const;
Node *get_child(int p_index, bool p_include_internal = true) const;
TypedArray<Node> get_children(bool p_include_internal = true) const;
bool has_node(const NodePath &p_path) const;
Node *get_node(const NodePath &p_path) const;
Node *get_node_or_null(const NodePath &p_path) const;
Node *find_child(const String &p_pattern, bool p_recursive = true, bool p_owned = true) const;
TypedArray<Node> find_children(const String &p_pattern, const String &p_type = "", bool p_recursive = true, bool p_owned = true) const;
bool has_node_and_resource(const NodePath &p_path) const;
Node *get_node_and_resource(const NodePath &p_path, Ref<Resource> &r_res, Vector<StringName> &r_leftover_subpath, bool p_last_is_property = true) const;
virtual void reparent(Node *p_parent, bool p_keep_global_transform = true);
Node *get_parent() const;
Node *find_parent(const String &p_pattern) const;
void set_unique_scene_id(int32_t p_unique_id);
int32_t get_unique_scene_id() const;
Window *get_window() const;
Window *get_non_popup_window() const;
Window *get_last_exclusive_window() const;
_FORCE_INLINE_ SceneTree *get_tree() const {
ERR_FAIL_NULL_V(data.tree, nullptr);
return data.tree;
}
_FORCE_INLINE_ bool is_inside_tree() const { return data.tree; }
bool is_internal() const { return data.internal_mode != INTERNAL_MODE_DISABLED; }
bool is_ancestor_of(const Node *p_node) const;
bool is_greater_than(const Node *p_node) const;
NodePath get_path() const;
NodePath get_path_to(const Node *p_node, bool p_use_unique_path = false) const;
Node *find_common_parent_with(const Node *p_node) const;
void add_to_group(const StringName &p_identifier, bool p_persistent = false);
void remove_from_group(const StringName &p_identifier);
bool is_in_group(const StringName &p_identifier) const;
struct GroupInfo {
StringName name;
bool persistent = false;
};
void get_groups(List<GroupInfo> *p_groups) const;
int get_persistent_group_count() const;
void move_child(Node *p_child, int p_index);
void _move_child(Node *p_child, int p_index, bool p_ignore_end = false);
void set_owner(Node *p_owner);
Node *get_owner() const;
void get_owned_by(Node *p_by, List<Node *> *p_owned);
void set_unique_name_in_owner(bool p_enabled);
bool is_unique_name_in_owner() const;
_FORCE_INLINE_ int get_index(bool p_include_internal = true) const {
// p_include_internal = false doesn't make sense if the node is internal.
ERR_FAIL_COND_V_MSG(!p_include_internal && data.internal_mode != INTERNAL_MODE_DISABLED, -1, "Node is internal. Can't get index with 'include_internal' being false.");
if (!data.parent) {
return data.index;
}
data.parent->_update_children_cache();
if (!p_include_internal) {
return data.index;
} else {
switch (data.internal_mode) {
case INTERNAL_MODE_DISABLED: {
return data.parent->data.internal_children_front_count_cache + data.index;
} break;
case INTERNAL_MODE_FRONT: {
return data.index;
} break;
case INTERNAL_MODE_BACK: {
return data.parent->data.internal_children_front_count_cache + data.parent->data.external_children_count_cache + data.index;
} break;
}
return -1;
}
}
Ref<Tween> create_tween();
void print_tree();
void print_tree_pretty();
String get_tree_string();
String get_tree_string_pretty();
void set_scene_file_path(const String &p_scene_file_path);
String get_scene_file_path() const;
void set_editor_description(const String &p_editor_description);
String get_editor_description() const;
void set_editable_instance(Node *p_node, bool p_editable);
bool is_editable_instance(const Node *p_node) const;
Node *get_deepest_editable_node(Node *p_start_node) const;
#ifdef TOOLS_ENABLED
void set_property_pinned(const String &p_property, bool p_pinned);
bool is_property_pinned(const StringName &p_property) const;
virtual StringName get_property_store_alias(const StringName &p_property) const;
bool is_part_of_edited_scene() const;
#else
bool is_part_of_edited_scene() const { return false; }
#endif
void get_storable_properties(HashSet<StringName> &r_storable_properties) const;
virtual String to_string() override;
/* NOTIFICATIONS */
void propagate_notification(int p_notification);
void propagate_call(const StringName &p_method, const Array &p_args = Array(), const bool p_parent_first = false);
/* PROCESSING */
void set_physics_process(bool p_process);
double get_physics_process_delta_time() const;
bool is_physics_processing() const;
void set_process(bool p_process);
double get_process_delta_time() const;
bool is_processing() const;
void set_physics_process_internal(bool p_process_internal);
bool is_physics_processing_internal() const;
void set_process_internal(bool p_process_internal);
bool is_processing_internal() const;
void set_process_priority(int p_priority);
int get_process_priority() const;
void set_process_thread_group_order(int p_order);
int get_process_thread_group_order() const;
void set_physics_process_priority(int p_priority);
int get_physics_process_priority() const;
void set_process_input(bool p_enable);
bool is_processing_input() const;
void set_process_shortcut_input(bool p_enable);
bool is_processing_shortcut_input() const;
void set_process_unhandled_input(bool p_enable);
bool is_processing_unhandled_input() const;
void set_process_unhandled_key_input(bool p_enable);
bool is_processing_unhandled_key_input() const;
_FORCE_INLINE_ bool _is_any_processing() const {
return data.process || data.process_internal || data.physics_process || data.physics_process_internal;
}
_FORCE_INLINE_ bool is_accessible_from_caller_thread() const {
if (current_process_thread_group == nullptr) {
// No thread processing.
// Only accessible if node is outside the scene tree
// or access will happen from a node-safe thread.
return !data.tree || is_current_thread_safe_for_nodes();
} else {
// Thread processing.
return current_process_thread_group == data.process_thread_group_owner;
}
}
_FORCE_INLINE_ bool is_readable_from_caller_thread() const {
if (current_process_thread_group == nullptr) {
// No thread processing.
// Only accessible if node is outside the scene tree
// or access will happen from a node-safe thread.
return is_current_thread_safe_for_nodes() || unlikely(!data.tree);
} else {
// Thread processing.
return true;
}
}
_FORCE_INLINE_ static bool is_group_processing() { return current_process_thread_group; }
void set_process_thread_messages(BitField<ProcessThreadMessages> p_flags);
BitField<ProcessThreadMessages> get_process_thread_messages() const;
void queue_accessibility_update();
virtual RID get_accessibility_element() const;
virtual RID get_focused_accessibility_element() const;
virtual bool accessibility_override_tree_hierarchy() const { return false; }
virtual PackedStringArray get_accessibility_configuration_warnings() const;
Node *duplicate(int p_flags = DUPLICATE_GROUPS | DUPLICATE_SIGNALS | DUPLICATE_SCRIPTS) const;
#ifdef TOOLS_ENABLED
Node *duplicate_from_editor(HashMap<const Node *, Node *> &r_duplimap) const;
Node *duplicate_from_editor(HashMap<const Node *, Node *> &r_duplimap, const HashMap<Ref<Resource>, Ref<Resource>> &p_resource_remap) const;
void remap_node_resources(Node *p_node, const HashMap<Ref<Resource>, Ref<Resource>> &p_resource_remap) const;
void remap_nested_resources(Ref<Resource> p_resource, const HashMap<Ref<Resource>, Ref<Resource>> &p_resource_remap) const;
#endif
// used by editors, to save what has changed only
void set_scene_instance_state(const Ref<SceneState> &p_state);
Ref<SceneState> get_scene_instance_state() const;
void set_scene_inherited_state(const Ref<SceneState> &p_state);
Ref<SceneState> get_scene_inherited_state() const;
void set_scene_instance_load_placeholder(bool p_enable);
bool get_scene_instance_load_placeholder() const;
template <typename... VarArgs>
Vector<Variant> make_binds(VarArgs... p_args) {
Vector<Variant> binds = { p_args... };
return binds;
}
void replace_by(Node *p_node, bool p_keep_groups = false);
void set_process_mode(ProcessMode p_mode);
ProcessMode get_process_mode() const;
bool can_process() const;
bool can_process_notification(int p_what) const;
void set_physics_interpolation_mode(PhysicsInterpolationMode p_mode);
PhysicsInterpolationMode get_physics_interpolation_mode() const { return data.physics_interpolation_mode; }
_FORCE_INLINE_ bool is_physics_interpolated() const { return data.physics_interpolated; }
_FORCE_INLINE_ bool is_physics_interpolated_and_enabled() const { return SceneTree::is_fti_enabled() && is_physics_interpolated(); }
void reset_physics_interpolation();
bool is_enabled() const;
bool is_ready() const;
void request_ready();
void set_process_thread_group(ProcessThreadGroup p_mode);
ProcessThreadGroup get_process_thread_group() const;
static void print_orphan_nodes();
static TypedArray<int> get_orphan_node_ids();
#ifdef TOOLS_ENABLED
String validate_child_name(Node *p_child);
String prevalidate_child_name(Node *p_child, StringName p_name);
void get_argument_options(const StringName &p_function, int p_idx, List<String> *r_options) const override;
#endif
static String adjust_name_casing(const String &p_name);
void queue_free();
//hacks for speed
static void init_node_hrcr();
bool is_owned_by_parent() const;
void clear_internal_tree_resource_paths();
_FORCE_INLINE_ Viewport *get_viewport() const { return data.viewport; }
virtual PackedStringArray get_configuration_warnings() const;
void update_configuration_warnings();
void set_display_folded(bool p_folded);
bool is_displayed_folded() const;
/* NETWORK */
virtual void set_multiplayer_authority(int p_peer_id, bool p_recursive = true);
int get_multiplayer_authority() const;
bool is_multiplayer_authority() const;
void rpc_config(const StringName &p_method, const Variant &p_config); // config a local method for RPC
const Variant get_node_rpc_config() const;
template <typename... VarArgs>
Error rpc(const StringName &p_method, VarArgs... p_args);
template <typename... VarArgs>
Error rpc_id(int p_peer_id, const StringName &p_method, VarArgs... p_args);
Error rpcp(int p_peer_id, const StringName &p_method, const Variant **p_arg, int p_argcount);
Ref<MultiplayerAPI> get_multiplayer() const;
/* INTERNATIONALIZATION */
void set_auto_translate_mode(AutoTranslateMode p_mode);
AutoTranslateMode get_auto_translate_mode() const;
bool can_auto_translate() const;
virtual StringName get_translation_domain() const override;
virtual void set_translation_domain(const StringName &p_domain) override;
void set_translation_domain_inherited();
_FORCE_INLINE_ String atr(const String &p_message, const StringName &p_context = "") const { return can_auto_translate() ? tr(p_message, p_context) : p_message; }
_FORCE_INLINE_ String atr_n(const String &p_message, const StringName &p_message_plural, int p_n, const StringName &p_context = "") const {
if (can_auto_translate()) {
return tr_n(p_message, p_message_plural, p_n, p_context);
}
return p_n == 1 ? p_message : String(p_message_plural);
}
/* THREADING */
void call_deferred_thread_groupp(const StringName &p_method, const Variant **p_args, int p_argcount, bool p_show_error = false);
template <typename... VarArgs>
void call_deferred_thread_group(const StringName &p_method, VarArgs... p_args) {
Variant args[sizeof...(p_args) + 1] = { p_args..., Variant() }; // +1 makes sure zero sized arrays are also supported.
const Variant *argptrs[sizeof...(p_args) + 1];
for (uint32_t i = 0; i < sizeof...(p_args); i++) {
argptrs[i] = &args[i];
}
call_deferred_thread_groupp(p_method, sizeof...(p_args) == 0 ? nullptr : (const Variant **)argptrs, sizeof...(p_args));
}
void set_deferred_thread_group(const StringName &p_property, const Variant &p_value);
void notify_deferred_thread_group(int p_notification);
void call_thread_safep(const StringName &p_method, const Variant **p_args, int p_argcount, bool p_show_error = false);
template <typename... VarArgs>
void call_thread_safe(const StringName &p_method, VarArgs... p_args) {
Variant args[sizeof...(p_args) + 1] = { p_args..., Variant() }; // +1 makes sure zero sized arrays are also supported.
const Variant *argptrs[sizeof...(p_args) + 1];
for (uint32_t i = 0; i < sizeof...(p_args); i++) {
argptrs[i] = &args[i];
}
call_deferred_thread_groupp(p_method, sizeof...(p_args) == 0 ? nullptr : (const Variant **)argptrs, sizeof...(p_args));
}
void set_thread_safe(const StringName &p_property, const Variant &p_value);
void notify_thread_safe(int p_notification);
/* HELPER */
bool is_instance() const { return !data.scene_file_path.is_empty(); }
// These inherited functions need proper multithread locking when overridden in Node.
#ifdef DEBUG_ENABLED
virtual void set_script(const Variant &p_script) override;
virtual Variant get_script() const override;
virtual bool has_meta(const StringName &p_name) const override;
virtual void set_meta(const StringName &p_name, const Variant &p_value) override;
virtual void remove_meta(const StringName &p_name) override;
virtual Variant get_meta(const StringName &p_name, const Variant &p_default = Variant()) const override;
virtual void get_meta_list(List<StringName> *p_list) const override;
virtual Error emit_signalp(const StringName &p_name, const Variant **p_args, int p_argcount) override;
virtual bool has_signal(const StringName &p_name) const override;
virtual void get_signal_list(List<MethodInfo> *p_signals) const override;
virtual void get_signal_connection_list(const StringName &p_signal, List<Connection> *p_connections) const override;
virtual void get_all_signal_connections(List<Connection> *p_connections) const override;
virtual int get_persistent_signal_connection_count() const override;
virtual void get_signals_connected_to_this(List<Connection> *p_connections) const override;
virtual Error connect(const StringName &p_signal, const Callable &p_callable, uint32_t p_flags = 0) override;
virtual void disconnect(const StringName &p_signal, const Callable &p_callable) override;
virtual bool is_connected(const StringName &p_signal, const Callable &p_callable) const override;
virtual bool has_connections(const StringName &p_signal) const override;
#endif
Node();
~Node();
};
VARIANT_ENUM_CAST(Node::DuplicateFlags);
VARIANT_ENUM_CAST(Node::ProcessMode);
VARIANT_ENUM_CAST(Node::ProcessThreadGroup);
VARIANT_BITFIELD_CAST(Node::ProcessThreadMessages);
VARIANT_ENUM_CAST(Node::InternalMode);
VARIANT_ENUM_CAST(Node::PhysicsInterpolationMode);
VARIANT_ENUM_CAST(Node::AutoTranslateMode);
typedef HashSet<Node *, Node::Comparator> NodeSet;
// Template definitions must be in the header so they are always fully initialized before their usage.
// See this StackOverflow question for more information: https://stackoverflow.com/questions/495021/why-can-templates-only-be-implemented-in-the-header-file
template <typename... VarArgs>
Error Node::rpc(const StringName &p_method, VarArgs... p_args) {
return rpc_id(0, p_method, p_args...);
}
template <typename... VarArgs>
Error Node::rpc_id(int p_peer_id, const StringName &p_method, VarArgs... p_args) {
Variant args[sizeof...(p_args) + 1] = { p_args..., Variant() }; // +1 makes sure zero sized arrays are also supported.
const Variant *argptrs[sizeof...(p_args) + 1];
for (uint32_t i = 0; i < sizeof...(p_args); i++) {
argptrs[i] = &args[i];
}
return rpcp(p_peer_id, p_method, sizeof...(p_args) == 0 ? nullptr : (const Variant **)argptrs, sizeof...(p_args));
}
#ifdef DEBUG_ENABLED
#define ERR_THREAD_GUARD ERR_FAIL_COND_MSG(!is_accessible_from_caller_thread(), vformat("Caller thread can't call this function in this node (%s). Use call_deferred() or call_thread_group() instead.", get_description()));
#define ERR_THREAD_GUARD_V(m_ret) ERR_FAIL_COND_V_MSG(!is_accessible_from_caller_thread(), (m_ret), vformat("Caller thread can't call this function in this node (%s). Use call_deferred() or call_thread_group() instead.", get_description()));
#define ERR_MAIN_THREAD_GUARD ERR_FAIL_COND_MSG(is_inside_tree() && !is_current_thread_safe_for_nodes(), vformat("This function in this node (%s) can only be accessed from the main thread. Use call_deferred() instead.", get_description()));
#define ERR_MAIN_THREAD_GUARD_V(m_ret) ERR_FAIL_COND_V_MSG(is_inside_tree() && !is_current_thread_safe_for_nodes(), (m_ret), vformat("This function in this node (%s) can only be accessed from the main thread. Use call_deferred() instead.", get_description()));
#define ERR_READ_THREAD_GUARD ERR_FAIL_COND_MSG(!is_readable_from_caller_thread(), vformat("This function in this node (%s) can only be accessed from either the main thread or a thread group. Use call_deferred() instead.", get_description()));
#define ERR_READ_THREAD_GUARD_V(m_ret) ERR_FAIL_COND_V_MSG(!is_readable_from_caller_thread(), (m_ret), vformat("This function in this node (%s) can only be accessed from either the main thread or a thread group. Use call_deferred() instead.", get_description()));
#else
#define ERR_THREAD_GUARD
#define ERR_THREAD_GUARD_V(m_ret)
#define ERR_MAIN_THREAD_GUARD
#define ERR_MAIN_THREAD_GUARD_V(m_ret)
#define ERR_READ_THREAD_GUARD
#define ERR_READ_THREAD_GUARD_V(m_ret)
#endif
// Add these macro to your class's 'get_configuration_warnings' function to have warnings show up in the scene tree inspector.
#define DEPRECATED_NODE_WARNING warnings.push_back(RTR("This node is marked as deprecated and will be removed in future versions.\nPlease check the Godot documentation for information about migration."));
#define EXPERIMENTAL_NODE_WARNING warnings.push_back(RTR("This node is marked as experimental and may be subject to removal or major changes in future versions."));
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