events.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef NUVIE_CORE_EVENT_H
#define NUVIE_CORE_EVENT_H

#include "ultima/shared/std/containers.h"
#include "ultima/shared/std/string.h"
#include "ultima/nuvie/misc/call_back.h"
#include "ultima/nuvie/keybinding/keys_enum.h"
#include "ultima/nuvie/core/obj_manager.h"

namespace Ultima {
namespace Nuvie {

class Actor;
class CallbackTarget;
class Configuration;
class Converse;
class Book;
class Game;
class TimeQueue;
class MapWindow;
class MsgScroll;
class GameClock;
class Player;
class ViewManager;
class UseCode;
class GUI;
class GUI_Dialog;
class Magic;
class KeyBinder;
class FpsCounter;
class ScriptThread;

#define NUVIE_INTERVAL    50
#define PUSH_FROM_PLAYER false
#define PUSH_FROM_OBJECT true

#define BUTTON_MASK(MB) (1 << ((int)(MB) - 1))

enum EventMode {
    LOOK_MODE = 0,
    USE_MODE,
    GET_MODE,
    MOVE_MODE,
    DROP_MODE,
    TALK_MODE, /* finding an actor to talk to */
    ATTACK_MODE,
    PUSH_MODE,
    REST_MODE, /* modes before this need targets if using the command bar selected action */
    CAST_MODE,
    COMBAT_MODE, /* only used to cancel previous actions */
    SPELL_MODE, //direct spell casting without spell select etc.
    EQUIP_MODE,
    WAIT_MODE, /* waiting for something, optionally display prompt when finished */
    INPUT_MODE,
    MULTIUSE_MODE,
    KEYINPUT_MODE,
    SCRIPT_MODE
};

extern uint32 nuvieGameCounter;

// type of input that event may collect and send somewhere
#define EVENTINPUT_MAPCOORD 0
#define EVENTINPUT_KEY      1
#define EVENTINPUT_STRING   2
#define EVENTINPUT_OBJECT   3
#define EVENTINPUT_MAPCOORD_DIR 4
#define EVENTINPUT_SPELL_NUM 5

const Common::KeyCode FIRST_JOY = (Common::KeyCode)400;
const Common::KeyCode JOY_UP = FIRST_JOY;               // PS d-pad when analog is disabled. left stick when enabled
const Common::KeyCode JOY_DOWN = (Common::KeyCode)(FIRST_JOY + 1);
const Common::KeyCode JOY_LEFT = (Common::KeyCode)(FIRST_JOY + 2);
const Common::KeyCode JOY_RIGHT = (Common::KeyCode)(FIRST_JOY + 3);
const Common::KeyCode JOY_RIGHTUP = (Common::KeyCode)(FIRST_JOY + 4);
const Common::KeyCode JOY_RIGHTDOWN = (Common::KeyCode)(FIRST_JOY + 5);
const Common::KeyCode JOY_LEFTUP = (Common::KeyCode)(FIRST_JOY + 6);
const Common::KeyCode JOY_LEFTDOWN = (Common::KeyCode)(FIRST_JOY + 7);
const Common::KeyCode JOY_UP2 = (Common::KeyCode)(FIRST_JOY + 8); // PS right stick when analog is enabled
const Common::KeyCode JOY_DOWN2 = (Common::KeyCode)(FIRST_JOY + 9);
const Common::KeyCode JOY_LEFT2 = (Common::KeyCode)(FIRST_JOY + 10);
const Common::KeyCode JOY_RIGHT2 = (Common::KeyCode)(FIRST_JOY + 11);
const Common::KeyCode JOY_RIGHTUP2 = (Common::KeyCode)(FIRST_JOY + 12);
const Common::KeyCode JOY_RIGHTDOWN2 = (Common::KeyCode)(FIRST_JOY + 13);
const Common::KeyCode JOY_LEFTUP2 = (Common::KeyCode)(FIRST_JOY + 14);
const Common::KeyCode JOY_LEFTDOWN2 = (Common::KeyCode)(FIRST_JOY + 15);
const Common::KeyCode JOY_UP3 = (Common::KeyCode)(FIRST_JOY + 16);
const Common::KeyCode JOY_DOWN3 = (Common::KeyCode)(FIRST_JOY + 17);
const Common::KeyCode JOY_LEFT3 = (Common::KeyCode)(FIRST_JOY + 18);
const Common::KeyCode JOY_RIGHT3 = (Common::KeyCode)(FIRST_JOY + 19);
const Common::KeyCode JOY_RIGHTUP3 = (Common::KeyCode)(FIRST_JOY + 20);
const Common::KeyCode JOY_RIGHTDOWN3 = (Common::KeyCode)(FIRST_JOY + 21);
const Common::KeyCode JOY_LEFTUP3 = (Common::KeyCode)(FIRST_JOY + 22);
const Common::KeyCode JOY_LEFTDOWN3 = (Common::KeyCode)(FIRST_JOY + 23);
const Common::KeyCode JOY_UP4 = (Common::KeyCode)(FIRST_JOY + 24);
const Common::KeyCode JOY_DOWN4 = (Common::KeyCode)(FIRST_JOY + 25);
const Common::KeyCode JOY_LEFT4 = (Common::KeyCode)(FIRST_JOY + 26);
const Common::KeyCode JOY_RIGHT4 = (Common::KeyCode)(FIRST_JOY + 27);
const Common::KeyCode JOY_RIGHTUP4 = (Common::KeyCode)(FIRST_JOY + 28);
const Common::KeyCode JOY_RIGHTDOWN4 = (Common::KeyCode)(FIRST_JOY + 29);
const Common::KeyCode JOY_LEFTUP4 = (Common::KeyCode)(FIRST_JOY + 30);
const Common::KeyCode JOY_LEFTDOWN4 = (Common::KeyCode)(FIRST_JOY + 31);
const Common::KeyCode JOY_HAT_UP = (Common::KeyCode)(FIRST_JOY + 32); // PS d-pad when analog is enabled
const Common::KeyCode JOY_HAT_DOWN = (Common::KeyCode)(FIRST_JOY + 33);
const Common::KeyCode JOY_HAT_LEFT = (Common::KeyCode)(FIRST_JOY + 34);
const Common::KeyCode JOY_HAT_RIGHT = (Common::KeyCode)(FIRST_JOY + 35);
const Common::KeyCode JOY_HAT_RIGHTUP = (Common::KeyCode)(FIRST_JOY + 36);
const Common::KeyCode JOY_HAT_RIGHTDOWN = (Common::KeyCode)(FIRST_JOY + 37);
const Common::KeyCode JOY_HAT_LEFTUP = (Common::KeyCode)(FIRST_JOY + 38);
const Common::KeyCode JOY_HAT_LEFTDOWN = (Common::KeyCode)(FIRST_JOY + 39);
const Common::KeyCode JOY0 = (Common::KeyCode)(FIRST_JOY + 40); // PS triangle
const Common::KeyCode JOY1 = (Common::KeyCode)(FIRST_JOY + 41); // PS circle
const Common::KeyCode JOY2 = (Common::KeyCode)(FIRST_JOY + 42); // PS x
const Common::KeyCode JOY3 = (Common::KeyCode)(FIRST_JOY + 43); // PS square
const Common::KeyCode JOY4 = (Common::KeyCode)(FIRST_JOY + 44); // PS L2
const Common::KeyCode JOY5 = (Common::KeyCode)(FIRST_JOY + 45); // PS R2
const Common::KeyCode JOY6 = (Common::KeyCode)(FIRST_JOY + 46); // PS L1
const Common::KeyCode JOY7 = (Common::KeyCode)(FIRST_JOY + 47); // PS R1
const Common::KeyCode JOY8 = (Common::KeyCode)(FIRST_JOY + 48); // PS select
const Common::KeyCode JOY9 = (Common::KeyCode)(FIRST_JOY + 49); // PS start
const Common::KeyCode JOY10 = (Common::KeyCode)(FIRST_JOY + 50); // PS L3 (analog must be enabled)
const Common::KeyCode JOY11 = (Common::KeyCode)(FIRST_JOY + 51); // PS R3 (analog must be enabled)
const Common::KeyCode JOY12 = (Common::KeyCode)(FIRST_JOY + 52);
const Common::KeyCode JOY13 = (Common::KeyCode)(FIRST_JOY + 53);
const Common::KeyCode JOY14 = (Common::KeyCode)(FIRST_JOY + 54);
const Common::KeyCode JOY15 = (Common::KeyCode)(FIRST_JOY + 55);
const Common::KeyCode JOY16 = (Common::KeyCode)(FIRST_JOY + 56);
const Common::KeyCode JOY17 = (Common::KeyCode)(FIRST_JOY + 57);
const Common::KeyCode JOY18 = (Common::KeyCode)(FIRST_JOY + 58);
const Common::KeyCode JOY19 = (Common::KeyCode)(FIRST_JOY + 59);


struct EventInput_s {
    uint8 type; // 0=loc,1=key,2=str,3=obj,4=actor
//    union
//    {
    Common::KeyCode key; // last key entered, if capturing input
    ActionKeyType action_key_type; // last ActionKeyType entered if capturing input
    MapCoord *loc; // target location, or direction if relative ???
    Std::string *str; // ???
//    };
    void set_loc(const MapCoord &c);
    EventInput_s() : loc(0), str(0), obj(0), actor(0), get_direction(false), get_text(false),
        target_init(0), select_from_inventory(false), select_range(0), key(Common::KEYCODE_INVALID),
        action_key_type(ActionKeyType::CANCEL_ACTION_KEY), spell_num(0), type(0) {
    }
    ~EventInput_s();

    Obj *obj; // top object at loc (or object from inventory)
    Actor *actor; // actor at loc
    bool get_direction; // if true, entering directions selects a target
    bool get_text; // if true, the MsgScroll is polled for text input
    MapCoord *target_init; // where MapWindow cursor is centered when targeting
    bool select_from_inventory; // if true, objects from inventory will be selected (and not from the map)
    uint8 select_range; // limits movement of MapWindow cursor from center
    sint16 spell_num;
};
typedef struct EventInput_s EventInput;

class Events : public CallBack {
    friend class Magic; // FIXME
private:
    const Configuration *config;
    GUI *gui;
    Game *game;
    ObjManager *obj_manager;
    MapWindow *map_window;
    MsgScroll *scroll;
    GameClock *clock;
    Player *player;
    Converse *converse;
    ViewManager *view_manager;
    UseCode *usecode;
    Magic *magic;
    KeyBinder *keybinder;
    GUI_Dialog *gamemenu_dialog;
    GUI_Dialog *assetviewer_dialog;

    Common::Event event;
    EventMode mode, last_mode;
    EventInput input; // collected/received input (of any type)
// Std::vector<EventMode> mode_stack; // current mode is at the end of the list
    int ts; //timestamp for TimeLeft() method.
    int altCodeVal;
    uint16 active_alt_code; // alt-code that needs more input
    uint8 alt_code_input_num; // alt-code can get multiple inputs

    TimeQueue *time_queue, *game_time_queue;
    Obj *drop_obj;
    uint16 drop_qty;
    sint32 drop_x, drop_y; // only to allow pre-targeting from MapWindow, feel free to ignore this
    uint8 rest_time; // How many hours?
    uint8 rest_guard; // Who will guard?
    Obj *push_obj;
    Actor *push_actor;

    bool drop_from_key;
    bool showingDialog;
    bool showingQuitDialog;
    bool ignore_timeleft; // do not wait for NUVIE_INTERVAL
    bool move_in_inventory;
    bool in_control_cheat;
    bool looking_at_spellbook;
    bool direction_selects_target;
    bool _keymapperStateBeforeKEYINPUT;

    uint32 fps_timestamp;
    uint16 fps_counter;
    FpsCounter *fps_counter_widget;
    ScriptThread *scriptThread;

    Common::Point _mousePos;
    uint8 _buttonsDown;

    static Events *g_events;
protected:
    inline uint32 TimeLeft();

    uint16 callback(uint16 msg, CallBack *caller, void *data = nullptr) override;
    bool handleSDL_KEYDOWN(const Common::Event *event);
    const char *print_mode(EventMode mode);
    void try_next_attack();

public:
    enum MouseButton {
        BUTTON_NONE = 0,
        BUTTON_LEFT = 1,
        BUTTON_RIGHT = 2,
        BUTTON_MIDDLE = 3,
        MOUSE_LAST
    };

    Events(const Configuration *cfg);
    ~Events() override;

    void clear();

    bool init(ObjManager *om, MapWindow *mw, MsgScroll *ms, Player *p, Magic *mg,
              GameClock *gc, ViewManager *vm, UseCode *uc, GUI *g, KeyBinder *kb);
    GUI_Dialog *get_gamemenu_dialog() {
        return gamemenu_dialog;
    }
    TimeQueue *get_time_queue() {
        return time_queue;
    }
    TimeQueue *get_game_time_queue() {
        return game_time_queue;
    }
    EventMode get_mode() const {
        return mode;
    }
    EventMode get_last_mode() const {
        return last_mode;
    }
    void set_mode(EventMode new_mode);

    bool is_direction_selecting_targets() const {
        return direction_selects_target;
    }
    void set_direction_selects_target(bool val) {
        direction_selects_target = val;
    }

    Common::Point getMousePos() const {
        return _mousePos;
    }

    byte getButtonState() const {
        return _buttonsDown;
    }

    bool using_pickpocket_cheat;
    bool cursor_mode;
    void update_timers();
    bool update();
    static MouseButton whichButton(Common::EventType type);
    bool pollEvent(Common::Event &event);
    bool handleEvent(const Common::Event *event);
    void request_input(CallBack *caller, void *user_data = nullptr);
    void target_spell();
    void close_spellbook();
// Prompt for input.
// obsolete:
// void useselect_mode(Obj *src, const char *prompt = nullptr); // deprecated
// void freeselect_mode(Obj *src, const char *prompt = nullptr); // deprecated
    void get_scroll_input(const char *allowed = nullptr, bool can_escape = true, bool using_target_cursor = false, bool set_numbers_only_to_true = true);
    void get_inventory_obj(Actor *actor, bool getting_target = true);
    void get_spell_num(Actor *caster, Obj *spell_container);
// void get_amount();
    void get_direction(const char *prompt);
    void get_direction(const MapCoord &from, const char *prompt);
    void get_target(const char *prompt);
    void get_target(const MapCoord &init, const char *prompt);
// void get_obj_from_inventory(Actor *actor, const char *prompt);
    void display_portrait(Actor *actor, const char *name = nullptr);
// Start a new action, setting a new mode and prompting for input.
    bool newAction(EventMode new_mode);
// void doAction(sint16 rel_x = 0, sint16 rel_y = 0);
// void doAction(Obj *obj);
    void doAction();
    void cancelAction();
    void endAction(bool prompt = false);
// Send input back to Events, performing an action for the current mode.
    bool select_obj(Obj *obj, Actor *actor = nullptr);
    bool select_view_obj(Obj *obj, Actor *actor);
    bool select_actor(Actor *actor);
    bool select_direction(sint16 rel_x, sint16 rel_y);
    bool select_target(uint16 x, uint16 y, uint8 z = 0);
    bool select_party_member(uint8 num);
    bool select_spell_num(sint16 spell_num);
// bool select_obj(Obj *obj = nullptr, Actor *actor = nullptr);
// bool select_obj(sint16 rel_x, sint16 rel_y);
// There is no "select_text", as Events polls MsgScroll for new input.
// Similarly, a "select_key" is unnecessary. The following method
// starts sending all keyboard input to 'caller'. (with the CB_DATA_READY message)
    void key_redirect(CallBack *caller, void *user_data);
    void cancel_key_redirect();

    /* These will be replaced in the future with an InputAction class. */
    bool move(sint16 rel_x, sint16 rel_y);

    bool use_start();
    bool use(sint16 rel_x, sint16 rel_y);
    bool use(const MapCoord &coord);
    bool use(Obj *obj);
    bool use(Actor *actor, uint16 x, uint16 y);

    bool get_start();
    bool get(const MapCoord &coord);
    bool get(sint16 rel_x, sint16 rel_y);
    bool perform_get(Obj *obj, Obj *container_obj = nullptr, Actor *actor = nullptr);

    bool look_start();
    bool lookAtCursor(bool delayed = false, uint16 x = 0, uint16 y  = 0,  uint8 z = 0, Obj *obj = nullptr, Actor *actor = nullptr);
    bool look(Obj *obj);
    bool look(Actor *actor);
    bool search(Obj *obj);

    bool talk_start();
    bool talk_cursor();
    bool talk(Actor *actor);
    bool talk(Obj *obj);
    bool perform_talk(Actor *actor);

    bool attack();

    bool push_start();
    bool pushFrom(Obj *obj);
    bool pushFrom(sint16 rel_x, sint16 rel_y);
    bool pushFrom(const MapCoord &target);
    bool pushTo(Obj *obj, Actor *actor);
    bool pushTo(sint16 rel_x, sint16 rel_y, bool push_from = PUSH_FROM_PLAYER);

    void solo_mode(uint32 actor_num);
    bool party_mode();
    bool toggle_combat();

    bool ready(Obj *obj, Actor *actor = nullptr);
    bool unready(Obj *obj);

    bool drop_start();
    bool drop_select(Obj *obj, uint16 qty = 0);
    bool drop_count(uint16 qty);
    bool perform_drop();
    void set_drop_from_key(bool closing_gumps) {
        drop_from_key = closing_gumps;
    }
    bool drop(Obj *obj, uint16 qty, uint16 x, uint16 y);
    bool drop(uint16 x, uint16 y) {
        return (drop(drop_obj, drop_qty, x, y));
    }
    void set_drop_target(uint16 x, uint16 y) {
        drop_x = sint32(x);
        drop_y = sint32(y);
    }
    bool can_move_obj_between_actors(Obj *obj, Actor *src_actor, Actor *target_actor, bool display_name = false);
    void display_not_aboard_vehicle(bool show_prompt = true);
    void display_move_text(Actor *target_actor, Obj *obj);
    bool can_get_to_actor(const Actor *actor, uint16 x, uint16 y);
    bool using_control_cheat() const {
        return in_control_cheat;
    }
    void set_control_cheat(bool control_cheat) {
        in_control_cheat = control_cheat;
    }
    bool is_looking_at_spellbook() const {
        return looking_at_spellbook;
    }
    void set_looking_at_spellbook(bool looking) {
        looking_at_spellbook = looking;
    }

    bool rest();
    bool rest_input(uint16 input);

    void cast_spell_directly(uint8 spell_num);
    bool can_target_icon(); // Target the actor or container tile in inventory and party view

// these are both for mouse-using convenience
    void walk_to_mouse_cursor(uint32 mx, uint32 my);
    void multiuse(uint16 wx, uint16 wy);

    void alt_code(int c);
    void alt_code_input(const char *in);
    void clear_alt_code() { altCodeVal = 0; }

    void toggleAltCodeMode(bool enable);
    void appendAltCode(int code);

    bool alt_code_teleport(const char *location_string);
    void alt_code_infostring();
    void alt_code_teleport_menu(uint32 selection);
    bool alt_code_teleport_to_person(uint32 npc);

    void wait();
    void set_ignore_timeleft(bool newsetting) {
        ignore_timeleft = newsetting;
    }
    EventInput *get_input() {
        return &input;
    }
// These cursor methods are use to make sure Events knows where the cursor is
// when objects are selected with ENTER. (since MapWindow and InventoryView
// may each independently show/hide their own cursors)
    void moveCursorToMapWindow(bool ToggleCursor = false);
    void moveCursorToInventory();

    void toggleFpsDisplay();
    void close_gumps();
    bool do_not_show_target_cursor;
    bool dont_show_target_cursor() const;
    bool input_really_needs_directon() const;
    void quitDialog();
    void gameMenuDialog();
    void assetViewer();
    bool actor_exists(const Actor *a) const;

    /* FIXME: Some of the above (action) functions can be removed from public, so
       that we don't need to check for WAIT mode in all of them. */

    static Events *get() { return g_events; }
};

extern bool shouldQuit();

} // End of namespace Nuvie
} // End of namespace Ultima

#endif