d95794ec8a
As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see".
394 lines
13 KiB
C++
394 lines
13 KiB
C++
/**************************************************************************/
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/* scene_tree.h */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#ifndef SCENE_TREE_H
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#define SCENE_TREE_H
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#include "core/os/main_loop.h"
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#include "core/os/thread_safe.h"
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#include "core/templates/self_list.h"
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#include "scene/resources/mesh.h"
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#undef Window
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class PackedScene;
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class Node;
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class Window;
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class Material;
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class Mesh;
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class MultiplayerAPI;
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class SceneDebugger;
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class Tween;
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class Viewport;
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class SceneTreeTimer : public RefCounted {
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GDCLASS(SceneTreeTimer, RefCounted);
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double time_left = 0.0;
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bool process_always = true;
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bool process_in_physics = false;
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bool ignore_time_scale = false;
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protected:
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static void _bind_methods();
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public:
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void set_time_left(double p_time);
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double get_time_left() const;
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void set_process_always(bool p_process_always);
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bool is_process_always();
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void set_process_in_physics(bool p_process_in_physics);
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bool is_process_in_physics();
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void set_ignore_time_scale(bool p_ignore);
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bool is_ignore_time_scale();
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void release_connections();
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SceneTreeTimer();
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};
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class SceneTree : public MainLoop {
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_THREAD_SAFE_CLASS_
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GDCLASS(SceneTree, MainLoop);
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public:
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typedef void (*IdleCallback)();
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private:
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struct Group {
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Vector<Node *> nodes;
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bool changed = false;
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};
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Window *root = nullptr;
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uint64_t tree_version = 1;
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double physics_process_time = 0.0;
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double process_time = 0.0;
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bool accept_quit = true;
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bool quit_on_go_back = true;
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#ifdef DEBUG_ENABLED
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bool debug_collisions_hint = false;
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bool debug_paths_hint = false;
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bool debug_navigation_hint = false;
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#endif
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bool paused = false;
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int root_lock = 0;
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HashMap<StringName, Group> group_map;
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bool _quit = false;
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bool initialized = false;
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StringName tree_changed_name = "tree_changed";
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StringName node_added_name = "node_added";
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StringName node_removed_name = "node_removed";
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StringName node_renamed_name = "node_renamed";
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int64_t current_frame = 0;
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int node_count = 0;
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#ifdef TOOLS_ENABLED
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Node *edited_scene_root = nullptr;
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#endif
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struct UGCall {
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StringName group;
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StringName call;
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static uint32_t hash(const UGCall &p_val) {
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return p_val.group.hash() ^ p_val.call.hash();
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}
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bool operator==(const UGCall &p_with) const { return group == p_with.group && call == p_with.call; }
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bool operator<(const UGCall &p_with) const { return group == p_with.group ? call < p_with.call : group < p_with.group; }
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};
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// Safety for when a node is deleted while a group is being called.
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int call_lock = 0;
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HashSet<Node *> call_skip; // Skip erased nodes.
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List<ObjectID> delete_queue;
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HashMap<UGCall, Vector<Variant>, UGCall> unique_group_calls;
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bool ugc_locked = false;
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void _flush_ugc();
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_FORCE_INLINE_ void _update_group_order(Group &g, bool p_use_priority = false);
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TypedArray<Node> _get_nodes_in_group(const StringName &p_group);
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Node *current_scene = nullptr;
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Color debug_collisions_color;
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Color debug_collision_contact_color;
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Color debug_paths_color;
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float debug_paths_width = 1.0f;
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Color debug_navigation_color;
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Color debug_navigation_disabled_color;
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Ref<ArrayMesh> debug_contact_mesh;
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Ref<Material> debug_paths_material;
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Ref<Material> navigation_material;
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Ref<Material> navigation_disabled_material;
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Ref<Material> collision_material;
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int collision_debug_contacts;
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void _change_scene(Node *p_to);
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List<Ref<SceneTreeTimer>> timers;
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List<Ref<Tween>> tweens;
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///network///
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Ref<MultiplayerAPI> multiplayer;
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HashMap<NodePath, Ref<MultiplayerAPI>> custom_multiplayers;
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bool multiplayer_poll = true;
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static SceneTree *singleton;
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friend class Node;
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void tree_changed();
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void node_added(Node *p_node);
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void node_removed(Node *p_node);
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void node_renamed(Node *p_node);
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void process_timers(double p_delta, bool p_physics_frame);
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void process_tweens(double p_delta, bool p_physics_frame);
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Group *add_to_group(const StringName &p_group, Node *p_node);
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void remove_from_group(const StringName &p_group, Node *p_node);
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void make_group_changed(const StringName &p_group);
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void _notify_group_pause(const StringName &p_group, int p_notification);
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void _call_group_flags(const Variant **p_args, int p_argcount, Callable::CallError &r_error);
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void _call_group(const Variant **p_args, int p_argcount, Callable::CallError &r_error);
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void _flush_delete_queue();
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// Optimization.
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friend class CanvasItem;
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friend class Node3D;
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friend class Viewport;
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SelfList<Node>::List xform_change_list;
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#ifdef DEBUG_ENABLED // No live editor in release build.
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friend class LiveEditor;
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#endif
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enum {
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MAX_IDLE_CALLBACKS = 256
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};
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static IdleCallback idle_callbacks[MAX_IDLE_CALLBACKS];
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static int idle_callback_count;
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void _call_idle_callbacks();
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void _main_window_focus_in();
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void _main_window_close();
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void _main_window_go_back();
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enum CallInputType {
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CALL_INPUT_TYPE_INPUT,
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CALL_INPUT_TYPE_SHORTCUT_INPUT,
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CALL_INPUT_TYPE_UNHANDLED_INPUT,
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CALL_INPUT_TYPE_UNHANDLED_KEY_INPUT,
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};
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//used by viewport
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void _call_input_pause(const StringName &p_group, CallInputType p_call_type, const Ref<InputEvent> &p_input, Viewport *p_viewport);
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protected:
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void _notification(int p_notification);
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static void _bind_methods();
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public:
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enum {
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NOTIFICATION_TRANSFORM_CHANGED = 2000
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};
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enum GroupCallFlags {
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GROUP_CALL_DEFAULT = 0,
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GROUP_CALL_REVERSE = 1,
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GROUP_CALL_DEFERRED = 2,
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GROUP_CALL_UNIQUE = 4,
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};
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_FORCE_INLINE_ Window *get_root() const { return root; }
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void call_group_flagsp(uint32_t p_call_flags, const StringName &p_group, const StringName &p_function, const Variant **p_args, int p_argcount);
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void notify_group_flags(uint32_t p_call_flags, const StringName &p_group, int p_notification);
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void set_group_flags(uint32_t p_call_flags, const StringName &p_group, const String &p_name, const Variant &p_value);
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// `notify_group()` is immediate by default since Godot 4.0.
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void notify_group(const StringName &p_group, int p_notification);
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// `set_group()` is immediate by default since Godot 4.0.
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void set_group(const StringName &p_group, const String &p_name, const Variant &p_value);
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template <typename... VarArgs>
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// `call_group()` is immediate by default since Godot 4.0.
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void call_group(const StringName &p_group, const StringName &p_function, VarArgs... p_args) {
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Variant args[sizeof...(p_args) + 1] = { p_args..., Variant() }; // +1 makes sure zero sized arrays are also supported.
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const Variant *argptrs[sizeof...(p_args) + 1];
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for (uint32_t i = 0; i < sizeof...(p_args); i++) {
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argptrs[i] = &args[i];
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}
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call_group_flagsp(GROUP_CALL_DEFAULT, p_group, p_function, sizeof...(p_args) == 0 ? nullptr : (const Variant **)argptrs, sizeof...(p_args));
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}
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template <typename... VarArgs>
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void call_group_flags(uint32_t p_flags, const StringName &p_group, const StringName &p_function, VarArgs... p_args) {
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Variant args[sizeof...(p_args) + 1] = { p_args..., Variant() }; // +1 makes sure zero sized arrays are also supported.
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const Variant *argptrs[sizeof...(p_args) + 1];
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for (uint32_t i = 0; i < sizeof...(p_args); i++) {
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argptrs[i] = &args[i];
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}
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call_group_flagsp(p_flags, p_group, p_function, sizeof...(p_args) == 0 ? nullptr : (const Variant **)argptrs, sizeof...(p_args));
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}
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void flush_transform_notifications();
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virtual void initialize() override;
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virtual bool physics_process(double p_time) override;
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virtual bool process(double p_time) override;
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virtual void finalize() override;
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bool is_auto_accept_quit() const;
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void set_auto_accept_quit(bool p_enable);
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bool is_quit_on_go_back() const;
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void set_quit_on_go_back(bool p_enable);
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void quit(int p_exit_code = EXIT_SUCCESS);
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_FORCE_INLINE_ double get_physics_process_time() const { return physics_process_time; }
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_FORCE_INLINE_ double get_process_time() const { return process_time; }
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#ifdef TOOLS_ENABLED
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bool is_node_being_edited(const Node *p_node) const;
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#else
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bool is_node_being_edited(const Node *p_node) const { return false; }
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#endif
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void set_pause(bool p_enabled);
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bool is_paused() const;
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#ifdef DEBUG_ENABLED
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void set_debug_collisions_hint(bool p_enabled);
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bool is_debugging_collisions_hint() const;
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void set_debug_paths_hint(bool p_enabled);
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bool is_debugging_paths_hint() const;
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void set_debug_navigation_hint(bool p_enabled);
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bool is_debugging_navigation_hint() const;
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#else
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void set_debug_collisions_hint(bool p_enabled) {}
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bool is_debugging_collisions_hint() const { return false; }
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void set_debug_paths_hint(bool p_enabled) {}
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bool is_debugging_paths_hint() const { return false; }
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void set_debug_navigation_hint(bool p_enabled) {}
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bool is_debugging_navigation_hint() const { return false; }
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#endif
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void set_debug_collisions_color(const Color &p_color);
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Color get_debug_collisions_color() const;
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void set_debug_collision_contact_color(const Color &p_color);
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Color get_debug_collision_contact_color() const;
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void set_debug_paths_color(const Color &p_color);
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Color get_debug_paths_color() const;
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void set_debug_paths_width(float p_width);
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float get_debug_paths_width() const;
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Ref<Material> get_debug_paths_material();
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Ref<Material> get_debug_collision_material();
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Ref<ArrayMesh> get_debug_contact_mesh();
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int get_collision_debug_contact_count() { return collision_debug_contacts; }
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int64_t get_frame() const;
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int get_node_count() const;
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void queue_delete(Object *p_object);
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void get_nodes_in_group(const StringName &p_group, List<Node *> *p_list);
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Node *get_first_node_in_group(const StringName &p_group);
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bool has_group(const StringName &p_identifier) const;
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//void change_scene(const String& p_path);
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//Node *get_loaded_scene();
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void set_edited_scene_root(Node *p_node);
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Node *get_edited_scene_root() const;
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void set_current_scene(Node *p_scene);
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Node *get_current_scene() const;
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Error change_scene_to_file(const String &p_path);
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Error change_scene_to_packed(const Ref<PackedScene> &p_scene);
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Error reload_current_scene();
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Ref<SceneTreeTimer> create_timer(double p_delay_sec, bool p_process_always = true, bool p_process_in_physics = false, bool p_ignore_time_scale = false);
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Ref<Tween> create_tween();
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TypedArray<Tween> get_processed_tweens();
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//used by Main::start, don't use otherwise
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void add_current_scene(Node *p_current);
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static SceneTree *get_singleton() { return singleton; }
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void get_argument_options(const StringName &p_function, int p_idx, List<String> *r_options) const override;
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//network API
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Ref<MultiplayerAPI> get_multiplayer(const NodePath &p_for_path = NodePath()) const;
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void set_multiplayer(Ref<MultiplayerAPI> p_multiplayer, const NodePath &p_root_path = NodePath());
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void set_multiplayer_poll_enabled(bool p_enabled);
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bool is_multiplayer_poll_enabled() const;
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static void add_idle_callback(IdleCallback p_callback);
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//default texture settings
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SceneTree();
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~SceneTree();
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};
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VARIANT_ENUM_CAST(SceneTree::GroupCallFlags);
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#endif // SCENE_TREE_H
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