mapper.cpp

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/*
 * 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/input/mapper.hpp>
#include <cmath>
 
namespace input {
 
void mapper::connect(::event::dispatcher& dispatcher)
{
    subscriptions.emplace_back(dispatcher.subscribe<gamepad_axis_moved_event>(std::bind_front(&mapper::handle_gamepad_axis_moved, this)));
    subscriptions.emplace_back(dispatcher.subscribe<gamepad_button_pressed_event>(std::bind_front(&mapper::handle_gamepad_button_pressed, this)));
    subscriptions.emplace_back(dispatcher.subscribe<key_pressed_event>(std::bind_front(&mapper::handle_key_pressed, this)));
    subscriptions.emplace_back(dispatcher.subscribe<mouse_button_pressed_event>(std::bind_front(&mapper::handle_mouse_button_pressed, this)));
    subscriptions.emplace_back(dispatcher.subscribe<mouse_moved_event>(std::bind_front(&mapper::handle_mouse_moved, this)));
    subscriptions.emplace_back(dispatcher.subscribe<mouse_scrolled_event>(std::bind_front(&mapper::handle_mouse_scrolled, this)));
}
 
void mapper::disconnect()
{
    subscriptions.clear();
}
 
void mapper::handle_gamepad_axis_moved(const gamepad_axis_moved_event& event)
{
    if (std::abs(event.position) > 0.5f)
    {
        gamepad_axis_mapped_publisher.publish({gamepad_axis_mapping(event.gamepad, event.axis, std::signbit(event.position))});
    }
}
 
void mapper::handle_gamepad_button_pressed(const gamepad_button_pressed_event& event)
{
    gamepad_button_mapped_publisher.publish({gamepad_button_mapping(event.gamepad, event.button)});
}
 
void mapper::handle_key_pressed(const key_pressed_event& event)
{
    if (!event.repeat)
    {
        key_mapped_publisher.publish({key_mapping(event.keyboard, event.scancode)});
    }
}
 
void mapper::handle_mouse_button_pressed(const mouse_button_pressed_event& event)
{
    mouse_button_mapped_publisher.publish({mouse_button_mapping(event.mouse, event.button)});
}
 
void mapper::handle_mouse_moved(const mouse_moved_event& event)
{
    if (event.difference.x())
    {
        mouse_motion_mapped_publisher.publish({mouse_motion_mapping(event.mouse, mouse_motion_axis::x, std::signbit(static_cast<float>(event.difference.x())))});
    }
    
    if (event.difference.y())
    {
        mouse_motion_mapped_publisher.publish({mouse_motion_mapping(event.mouse, mouse_motion_axis::y, std::signbit(static_cast<float>(event.difference.y())))});
    }
}
 
void mapper::handle_mouse_scrolled(const mouse_scrolled_event& event)
{
    if (event.velocity.x())
    {
        mouse_scroll_mapped_publisher.publish({mouse_scroll_mapping(event.mouse, mouse_scroll_axis::x, std::signbit(event.velocity.x()))});
    }
    
    if (event.velocity.y())
    {
        mouse_scroll_mapped_publisher.publish({mouse_scroll_mapping(event.mouse, mouse_scroll_axis::y, std::signbit(event.velocity.y()))});
    }
}
 
} // namespace input