input-manager.cpp

Go to the documentation of this file.

/*
 * Copyright (C) 2023  Christopher J. Howard
 *
 * This file is part of Antkeeper source code.
 *
 * Antkeeper source code 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.
 *
 * Antkeeper source code 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 Antkeeper source code.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#include <engine/app/input-manager.hpp>
#include <engine/app/sdl/sdl-input-manager.hpp>
 
namespace app {
 
std::unique_ptr<input_manager> input_manager::instance()
{
    return std::make_unique<sdl_input_manager>();
}
 
void input_manager::register_device(input::device& device)
{
    switch (device.get_device_type())
    {
        case input::device_type::gamepad:
            register_gamepad(static_cast<input::gamepad&>(device));
            break;
        
        case input::device_type::keyboard:
            register_keyboard(static_cast<input::keyboard&>(device));
            break;
        
        case input::device_type::mouse:
            register_mouse(static_cast<input::mouse&>(device));
            break;
        
        default:
            //std::unreachable();
            break;
    }
}
 
void input_manager::register_gamepad(input::gamepad& device)
{
    // Connect gamepad event signals to the event dispatcher
    m_subscriptions.emplace(&device, device.get_connected_channel().subscribe(m_event_dispatcher));
    m_subscriptions.emplace(&device, device.get_disconnected_channel().subscribe(m_event_dispatcher));
    m_subscriptions.emplace(&device, device.get_axis_moved_channel().subscribe(m_event_dispatcher));
    m_subscriptions.emplace(&device, device.get_button_pressed_channel().subscribe(m_event_dispatcher));
    m_subscriptions.emplace(&device, device.get_button_released_channel().subscribe(m_event_dispatcher));
    
    // Add gamepad to list of gamepads
    m_gamepads.emplace(&device);
}
 
void input_manager::register_keyboard(input::keyboard& device)
{
    // Connect keyboard event signals to the event dispatcher
    m_subscriptions.emplace(&device, device.get_connected_channel().subscribe(m_event_dispatcher));
    m_subscriptions.emplace(&device, device.get_disconnected_channel().subscribe(m_event_dispatcher));
    m_subscriptions.emplace(&device, device.get_key_pressed_channel().subscribe(m_event_dispatcher));
    m_subscriptions.emplace(&device, device.get_key_released_channel().subscribe(m_event_dispatcher));
    
    // Add keyboard to list of keyboards
    m_keyboards.emplace(&device);
}
 
void input_manager::register_mouse(input::mouse& device)
{
    // Connect mouse event signals to the event dispatcher
    m_subscriptions.emplace(&device, device.get_connected_channel().subscribe(m_event_dispatcher));
    m_subscriptions.emplace(&device, device.get_disconnected_channel().subscribe(m_event_dispatcher));
    m_subscriptions.emplace(&device, device.get_button_pressed_channel().subscribe(m_event_dispatcher));
    m_subscriptions.emplace(&device, device.get_button_released_channel().subscribe(m_event_dispatcher));
    m_subscriptions.emplace(&device, device.get_moved_channel().subscribe(m_event_dispatcher));
    m_subscriptions.emplace(&device, device.get_scrolled_channel().subscribe(m_event_dispatcher));
    
    // Add mouse to list of mice
    m_mice.emplace(&device);
}
 
void input_manager::unregister_device(input::device& device)
{
    m_subscriptions.erase(&device);
    
    switch (device.get_device_type())
    {
        case input::device_type::gamepad:
            unregister_gamepad(static_cast<input::gamepad&>(device));
            break;
        
        case input::device_type::keyboard:
            unregister_keyboard(static_cast<input::keyboard&>(device));
            break;
        
        case input::device_type::mouse:
            unregister_mouse(static_cast<input::mouse&>(device));
            break;
        
        default:
            //std::unreachable();
            break;
    }
}
 
void input_manager::unregister_gamepad(input::gamepad& gamepad)
{
    m_gamepads.erase(&gamepad);
}
 
void input_manager::unregister_keyboard(input::keyboard& keyboard)
{
    m_keyboards.erase(&keyboard);
}
 
void input_manager::unregister_mouse(input::mouse& mouse)
{
    m_mice.erase(&mouse);
}
 
} // namespace app