input_manager.hpp

/* This file is part of the "ST" project.
 * You may use, distribute or modify this code under the terms
 * of the GNU General Public License version 2.
 * See LICENCE.txt in the root directory of the project.
 *
 * Author: Maxim Atanasov
 * E-mail: maxim.atanasov@protonmail.com
 */
 
#ifndef INPUT_DEF
#define INPUT_DEF
 
#include <key_definitions.hpp>
#include <key_event.hpp>
#include <message_bus.hpp>
#include <task_manager.hpp>
#include <SDL_events.h>
#include <SDL_haptic.h>
 
class input_manager {
private:
 
    struct controller_analog_inputs {
        int16_t left_trigger = 0;
        int16_t right_trigger = 0;
        int16_t right_stick_vertical = 0;
        int16_t right_stick_horizontal = 0;
        int16_t left_stick_vertical = 0;
        int16_t left_stick_horizontal = 0;
    };
 
    struct button_and_mouse_controls {
        int32_t mouse_x = 0, mouse_y = 0;
        int16_t mouse_scroll = 0;
        bool *buttons{};
    };
    bool *keyboard_sdl_raw{};
 
    uint32_t v_width = 1, v_height = 1;
    uint32_t r_width = 1, r_height = 1;
 
    float ratio_w = 1, ratio_h = 1;
 
    int16_t left_stick_horizontal_threshold = 0;
    int16_t left_stick_vertical_threshold = 0;
 
    int16_t right_stick_horizontal_threshold = 0;
    int16_t right_stick_vertical_threshold = 0;
 
    int16_t left_trigger_threshold = 0;
    int16_t right_trigger_threshold = 0;
 
    SDL_Event event{};
 
    message_bus &gMessage_bus;
    task_manager &gTask_manager;
    subscriber msg_sub{};
    std::vector<SDL_GameController *> controllers;
    std::vector<SDL_Haptic *> controllers_haptic;
    struct button_and_mouse_controls controls{};
    struct button_and_mouse_controls controls_prev_frame;
    struct controller_analog_inputs controller_analog_inputs;
    struct controller_analog_inputs controller_analog_inputs_prev_frame;
 
    //Store ST::keys and the amount of times the have been registered as values;
    ska::bytell_hash_map<ST::key, uint8_t> registered_keys;
 
    //this is where we save the text stream from our input manager
    std::string composition;
    bool text_input = false;
 
    bool key_event(ST::key, ST::key_event k_event) const;
 
    void handle_messages();
 
    void take_input();
 
    void take_controller_input();
 
    void take_mouse_input();
 
#ifndef _MSC_VER
    static void update_task(void* mngr);
#endif
 
public:
 
    input_manager(task_manager &gTask_manager, message_bus &gMessageBus);
 
    ~input_manager();
 
    void update();
};
 
#endif //INPUT_DEF