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- /*
- Copyright (C) 2014 sapier
- Copyright (C) 2024 grorp, Gregor Parzefall
- <gregor.parzefall@posteo.de>
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
- #pragma once
- #include "irrlichttypes.h"
- #include <IEventReceiver.h>
- #include <IGUIButton.h>
- #include <IGUIEnvironment.h>
- #include <IrrlichtDevice.h>
- #include <memory>
- #include <optional>
- #include <unordered_map>
- #include <vector>
- #include "itemdef.h"
- #include "client/tile.h"
- #include "client/game.h"
- using namespace irr;
- using namespace irr::core;
- using namespace irr::gui;
- enum class TapState
- {
- None,
- ShortTap,
- LongTap,
- };
- typedef enum
- {
- jump_id = 0,
- crunch_id,
- zoom_id,
- aux1_id,
- after_last_element_id,
- settings_starter_id,
- rare_controls_starter_id,
- fly_id,
- noclip_id,
- fast_id,
- debug_id,
- camera_id,
- range_id,
- minimap_id,
- toggle_chat_id,
- chat_id,
- inventory_id,
- drop_id,
- exit_id,
- joystick_off_id,
- joystick_bg_id,
- joystick_center_id
- } touch_gui_button_id;
- typedef enum
- {
- AHBB_Dir_Top_Bottom,
- AHBB_Dir_Bottom_Top,
- AHBB_Dir_Left_Right,
- AHBB_Dir_Right_Left
- } autohide_button_bar_dir;
- #define MIN_DIG_TIME_MS 500
- #define BUTTON_REPEAT_DELAY 0.2f
- #define SETTINGS_BAR_Y_OFFSET 5
- #define RARE_CONTROLS_BAR_Y_OFFSET 5
- // Our simulated clicks last some milliseconds so that server-side mods have a
- // chance to detect them via l_get_player_control.
- // If you tap faster than this value, the simulated clicks are of course shorter.
- #define SIMULATED_CLICK_DURATION_MS 50
- extern const std::string button_image_names[];
- extern const std::string joystick_image_names[];
- struct button_info
- {
- float repeat_counter;
- float repeat_delay;
- EKEY_CODE keycode;
- std::vector<size_t> ids;
- IGUIButton *gui_button = nullptr;
- bool immediate_release;
- enum {
- NOT_TOGGLEABLE,
- FIRST_TEXTURE,
- SECOND_TEXTURE
- } toggleable = NOT_TOGGLEABLE;
- std::vector<std::string> textures;
- };
- class AutoHideButtonBar
- {
- public:
- AutoHideButtonBar(IrrlichtDevice *device, IEventReceiver *receiver);
- void init(ISimpleTextureSource *tsrc, const std::string &starter_img, int button_id,
- const v2s32 &UpperLeft, const v2s32 &LowerRight,
- autohide_button_bar_dir dir, float timeout);
- ~AutoHideButtonBar();
- // add button to be shown
- void addButton(touch_gui_button_id id, const wchar_t *caption,
- const std::string &btn_image);
- // add toggle button to be shown
- void addToggleButton(touch_gui_button_id id, const wchar_t *caption,
- const std::string &btn_image_1, const std::string &btn_image_2);
- // detect button bar button events
- bool isButton(const SEvent &event);
- // step handler
- void step(float dtime);
- // return whether the button bar is active
- bool active() { return m_active; }
- // deactivate the button bar
- void deactivate();
- // hide the whole button bar
- void hide();
- // unhide the button bar
- void show();
- private:
- ISimpleTextureSource *m_texturesource = nullptr;
- irr::video::IVideoDriver *m_driver;
- IGUIEnvironment *m_guienv;
- IEventReceiver *m_receiver;
- button_info m_starter;
- std::vector<std::shared_ptr<button_info>> m_buttons;
- v2s32 m_upper_left;
- v2s32 m_lower_right;
- // show button bar
- bool m_active = false;
- bool m_visible = true;
- // button bar timeout
- float m_timeout = 0.0f;
- float m_timeout_value = 3.0f;
- bool m_initialized = false;
- autohide_button_bar_dir m_dir = AHBB_Dir_Right_Left;
- };
- class TouchScreenGUI
- {
- public:
- TouchScreenGUI(IrrlichtDevice *device, IEventReceiver *receiver);
- ~TouchScreenGUI();
- void translateEvent(const SEvent &event);
- void applyContextControls(const TouchInteractionMode &mode);
- void init(ISimpleTextureSource *tsrc);
- double getYawChange()
- {
- double res = m_camera_yaw_change;
- m_camera_yaw_change = 0;
- return res;
- }
- double getPitchChange() {
- double res = m_camera_pitch_change;
- m_camera_pitch_change = 0;
- return res;
- }
- /**
- * Returns a line which describes what the player is pointing at.
- * The starting point and looking direction are significant,
- * the line should be scaled to match its length to the actual distance
- * the player can reach.
- * The line starts at the camera and ends on the camera's far plane.
- * The coordinates do not contain the camera offset.
- */
- line3d<f32> getShootline() { return m_shootline; }
- float getMovementDirection() { return m_joystick_direction; }
- float getMovementSpeed() { return m_joystick_speed; }
- void step(float dtime);
- inline void setUseCrosshair(bool use_crosshair) { m_draw_crosshair = use_crosshair; }
- void setVisible(bool visible);
- void hide();
- void show();
- void resetHotbarRects();
- void registerHotbarRect(u16 index, const rect<s32> &rect);
- std::optional<u16> getHotbarSelection();
- private:
- bool m_initialized = false;
- IrrlichtDevice *m_device;
- IGUIEnvironment *m_guienv;
- IEventReceiver *m_receiver;
- ISimpleTextureSource *m_texturesource;
- v2u32 m_screensize;
- s32 button_size;
- double m_touchscreen_threshold;
- bool m_visible; // is the whole touch screen gui visible
- std::unordered_map<u16, rect<s32>> m_hotbar_rects;
- std::optional<u16> m_hotbar_selection = std::nullopt;
- // value in degree
- double m_camera_yaw_change = 0.0;
- double m_camera_pitch_change = 0.0;
- /**
- * A line starting at the camera and pointing towards the selected object.
- * The line ends on the camera's far plane.
- * The coordinates do not contain the camera offset.
- */
- line3d<f32> m_shootline;
- bool m_has_move_id = false;
- size_t m_move_id;
- bool m_move_has_really_moved = false;
- u64 m_move_downtime = 0;
- // m_move_pos stays valid even after m_move_id has been released.
- v2s32 m_move_pos;
- bool m_has_joystick_id = false;
- size_t m_joystick_id;
- bool m_joystick_has_really_moved = false;
- float m_joystick_direction = 0.0f; // assume forward
- float m_joystick_speed = 0.0f; // no movement
- bool m_joystick_status_aux1 = false;
- bool m_fixed_joystick = false;
- bool m_joystick_triggers_aux1 = false;
- bool m_draw_crosshair = false;
- std::shared_ptr<button_info> m_joystick_btn_off = nullptr;
- std::shared_ptr<button_info> m_joystick_btn_bg = nullptr;
- std::shared_ptr<button_info> m_joystick_btn_center = nullptr;
- button_info m_buttons[after_last_element_id];
- // gui button detection
- touch_gui_button_id getButtonID(s32 x, s32 y);
- // gui button by eventID
- touch_gui_button_id getButtonID(size_t eventID);
- // check if a button has changed
- void handleChangedButton(const SEvent &event);
- // initialize a button
- void initButton(touch_gui_button_id id, const rect<s32> &button_rect,
- const std::wstring &caption, bool immediate_release,
- float repeat_delay = BUTTON_REPEAT_DELAY);
- // initialize a joystick button
- std::shared_ptr<button_info> initJoystickButton(touch_gui_button_id id,
- const rect<s32> &button_rect, int texture_id,
- bool visible = true);
- // handle a button event
- void handleButtonEvent(touch_gui_button_id bID, size_t eventID, bool action);
- // handle pressing hotbar items
- bool isHotbarButton(const SEvent &event);
- // handle release event
- void handleReleaseEvent(size_t evt_id);
- // apply joystick status
- void applyJoystickStatus();
- // map to store the IDs and positions of currently pressed pointers
- std::unordered_map<size_t, v2s32> m_pointer_pos;
- // settings bar
- AutoHideButtonBar m_settings_bar;
- // rare controls bar
- AutoHideButtonBar m_rare_controls_bar;
- v2s32 getPointerPos();
- void emitMouseEvent(EMOUSE_INPUT_EVENT type);
- TouchInteractionMode m_last_mode = TouchInteractionMode_END;
- TapState m_tap_state = TapState::None;
- bool m_dig_pressed = false;
- u64 m_dig_pressed_until = 0;
- bool m_place_pressed = false;
- u64 m_place_pressed_until = 0;
- };
- extern TouchScreenGUI *g_touchscreengui;
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