Cppcheck report - Godot - branch: 3.x, commit: cd92ad0f69a842d94dc2d56f83cbd8f724ed2959 (2024-12-15): main/input_default.h

/**************************************************************************/
/*  input_default.h                                                       */
/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
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/**************************************************************************/

#ifndef INPUT_DEFAULT_H
#define INPUT_DEFAULT_H

#include "core/os/input.h"

class InputDefault : public Input {
	GDCLASS(InputDefault, Input);
	_THREAD_SAFE_CLASS_

	int mouse_button_mask;

	Set<int> physical_keys_pressed;
	Set<int> keys_pressed;
	Set<int> joy_buttons_pressed;
	Map<int, float> _joy_axis;
	//Map<StringName,int> custom_action_press;
	Vector3 gravity;
	Vector3 accelerometer;
	Vector3 magnetometer;
	Vector3 gyroscope;
	Vector2 mouse_pos;
	MainLoop *main_loop;
	bool legacy_just_pressed_behavior = false;

	struct Action {
		uint64_t pressed_physics_frame = UINT64_MAX;
		uint64_t pressed_idle_frame = UINT64_MAX;
		uint64_t released_physics_frame = UINT64_MAX;
		uint64_t released_idle_frame = UINT64_MAX;
		bool pressed = false;
		bool exact = true;
		float strength = 0.0f;
		float raw_strength = 0.0f;
	};

	Map<StringName, Action> action_state;

	bool emulate_touch_from_mouse;
	bool emulate_mouse_from_touch;

	int mouse_from_touch_index;

	struct SpeedTrack {
		uint64_t last_tick;
		Vector2 speed;
		Vector2 accum;
		float accum_t;
		float min_ref_frame;
		float max_ref_frame;

		void update(const Vector2 &p_delta_p);
		void reset();
		SpeedTrack();
	};

	struct Joypad {
		StringName name;
		StringName uid;
		bool connected;
		bool last_buttons[JOY_BUTTON_MAX + 12]; //apparently SDL specifies 35 possible buttons on android
		float last_axis[JOY_AXIS_MAX];
		int last_hat;
		int mapping;
		int hat_current;

		Joypad() {
			for (int i = 0; i < JOY_AXIS_MAX; i++) {
				last_axis[i] = 0.0f;
			}
			for (int i = 0; i < JOY_BUTTON_MAX + 12; i++) {
				last_buttons[i] = false;
			}
			connected = false;
			last_hat = HAT_MASK_CENTER;
			mapping = -1;
			hat_current = 0;
		}
	};

	SpeedTrack mouse_speed_track;
	Map<int, SpeedTrack> touch_speed_track;
	Map<int, Joypad> joy_names;
	int fallback_mapping;

	CursorShape default_shape;

#ifdef TOOLS_ENABLED
	// Simple single-threaded detection of whether
	// inside `_parse_input_event_impl()`.
	bool _currently_parsing_input = false;
	class InputGuard {
		bool &_currently_parsing;

	public:
		InputGuard(bool &r_currently_parsing) :
<--- Class 'InputGuard' has a constructor with 1 argument that is not explicit. [+]
Class 'InputGuard' has a constructor with 1 argument that is not explicit. Such constructors should in general be explicit for type safety reasons. Using the explicit keyword in the constructor means some mistakes when using the class can be avoided.
				_currently_parsing(r_currently_parsing) { _currently_parsing = true; }
		~InputGuard() { _currently_parsing = false; }
	};
#endif

public:
	enum HatMask {
		HAT_MASK_CENTER = 0,
		HAT_MASK_UP = 1,
		HAT_MASK_RIGHT = 2,
		HAT_MASK_DOWN = 4,
		HAT_MASK_LEFT = 8,
	};

	enum HatDir {
		HAT_UP,
		HAT_RIGHT,
		HAT_DOWN,
		HAT_LEFT,
		HAT_MAX,
	};

	enum {
		JOYPADS_MAX = 16,
	};

private:
	enum JoyType {
		TYPE_BUTTON,
		TYPE_AXIS,
		TYPE_HAT,
		TYPE_MAX,
	};

	enum JoyAxisRange {
		NEGATIVE_HALF_AXIS = -1,
		FULL_AXIS = 0,
		POSITIVE_HALF_AXIS = 1
	};

	struct JoyEvent {
		int type;
		int index;
		float value;
	};

	struct JoyBinding {
		JoyType inputType;
		union {
			int button;

			struct {
				int axis;
				JoyAxisRange range;
				bool invert;
			} axis;

			struct {
				int hat;
				HatMask hat_mask;
			} hat;

		} input;

		JoyType outputType;
		union {
			JoystickList button;

			struct {
				JoystickList axis;
				JoyAxisRange range;
			} axis;

		} output;
	};

	struct JoyDeviceMapping {
		String uid;
		String name;
		Vector<JoyBinding> bindings;
	};

	Vector<JoyDeviceMapping> map_db;

	Set<uint32_t> ignored_device_ids;

	JoyEvent _get_mapped_button_event(const JoyDeviceMapping &mapping, int p_button);
	JoyEvent _get_mapped_axis_event(const JoyDeviceMapping &mapping, int p_axis, float p_value);
	void _get_mapped_hat_events(const JoyDeviceMapping &mapping, int p_hat, JoyEvent r_events[HAT_MAX]);
	JoystickList _get_output_button(String output);
	JoystickList _get_output_axis(String output);
	void _button_event(int p_device, int p_index, bool p_pressed);
	void _axis_event(int p_device, int p_axis, float p_value);

	void _parse_input_event_impl(const Ref<InputEvent> &p_event, bool p_is_emulated);

	List<Ref<InputEvent>> buffered_events;
	bool use_input_buffering;
	bool use_accumulated_input;

#ifdef DEBUG_ENABLED
	Set<Ref<InputEvent>> frame_parsed_events;
	uint64_t last_parsed_frame = UINT64_MAX;
#endif

protected:
	struct VibrationInfo {
		float weak_magnitude;
		float strong_magnitude;
		float duration; // Duration in seconds
		uint64_t timestamp;
	};

	Map<int, VibrationInfo> joy_vibration;

public:
	virtual bool is_key_pressed(int p_scancode) const;
	virtual bool is_physical_key_pressed(int p_scancode) const;
	virtual bool is_mouse_button_pressed(int p_button) const;
	virtual bool is_joy_button_pressed(int p_device, int p_button) const;
	virtual bool is_action_pressed(const StringName &p_action, bool p_exact = false) const;
	virtual bool is_action_just_pressed(const StringName &p_action, bool p_exact = false) const;
	virtual bool is_action_just_released(const StringName &p_action, bool p_exact = false) const;
	virtual float get_action_strength(const StringName &p_action, bool p_exact = false) const;
	virtual float get_action_raw_strength(const StringName &p_action, bool p_exact = false) const;

	virtual float get_joy_axis(int p_device, int p_axis) const;
	String get_joy_name(int p_idx);
	virtual Array get_connected_joypads();
	virtual Vector2 get_joy_vibration_strength(int p_device);
	virtual float get_joy_vibration_duration(int p_device);
	virtual uint64_t get_joy_vibration_timestamp(int p_device);
	void joy_connection_changed(int p_idx, bool p_connected, String p_name, String p_guid = "");

	virtual Vector3 get_gravity() const;
	virtual Vector3 get_accelerometer() const;
	virtual Vector3 get_magnetometer() const;
	virtual Vector3 get_gyroscope() const;

	virtual Point2 get_mouse_position() const;
	virtual Point2 get_last_mouse_speed();
	virtual int get_mouse_button_mask() const;

	virtual void warp_mouse_position(const Vector2 &p_to);
	virtual Point2i warp_mouse_motion(const Ref<InputEventMouseMotion> &p_motion, const Rect2 &p_rect);

	virtual void parse_input_event(const Ref<InputEvent> &p_event);

	virtual void set_gravity(const Vector3 &p_gravity);
	virtual void set_accelerometer(const Vector3 &p_accel);
	virtual void set_magnetometer(const Vector3 &p_magnetometer);
	virtual void set_gyroscope(const Vector3 &p_gyroscope);
	void set_joy_axis(int p_device, int p_axis, float p_value);

	virtual void start_joy_vibration(int p_device, float p_weak_magnitude, float p_strong_magnitude, float p_duration = 0);
	virtual void stop_joy_vibration(int p_device);
	virtual void vibrate_handheld(int p_duration_ms = 500);

	void set_main_loop(MainLoop *p_main_loop);
	void set_mouse_position(const Point2 &p_posf);

	void action_press(const StringName &p_action, float p_strength = 1.f);
	void action_release(const StringName &p_action);

	void iteration(float p_step);

	void set_emulate_touch_from_mouse(bool p_emulate);
	virtual bool is_emulating_touch_from_mouse() const;
	void ensure_touch_mouse_raised();

	void set_emulate_mouse_from_touch(bool p_emulate);
	virtual bool is_emulating_mouse_from_touch() const;

	virtual CursorShape get_default_cursor_shape() const;
	virtual void set_default_cursor_shape(CursorShape p_shape);
	virtual CursorShape get_current_cursor_shape() const;
	virtual void set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape = Input::CURSOR_ARROW, const Vector2 &p_hotspot = Vector2());

	void parse_mapping(String p_mapping);
	void joy_button(int p_device, int p_button, bool p_pressed);
	void joy_axis(int p_device, int p_axis, float p_value);
	void joy_hat(int p_device, int p_val);

	virtual void add_joy_mapping(String p_mapping, bool p_update_existing = false);
	virtual void remove_joy_mapping(String p_guid);
	virtual bool is_joy_known(int p_device);
	virtual String get_joy_guid(int p_device) const;

	bool should_ignore_device(int p_vendor_id, int p_product_id) const;

	virtual String get_joy_button_string(int p_button);
	virtual String get_joy_axis_string(int p_axis);
	virtual int get_joy_axis_index_from_string(String p_axis);
	virtual int get_joy_button_index_from_string(String p_button);

	int get_unused_joy_id();

	bool is_joy_mapped(int p_device);
	String get_joy_guid_remapped(int p_device) const;
	void set_fallback_mapping(String p_guid);

	virtual void flush_buffered_events();
	virtual bool is_using_input_buffering();
	virtual void set_use_input_buffering(bool p_enable);
	virtual bool is_using_accumulated_input();
	virtual void set_use_accumulated_input(bool p_enable);

	virtual void release_pressed_events();
	InputDefault();
};

#endif // INPUT_DEFAULT_H