/* * 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 . */ #include "input/control.hpp" namespace input { static bool default_threshold_function(float x) noexcept { return x > 0.0f; } control::control(): threshold_function(default_threshold_function), active(false), activated_event{this}, active_event{this, 0.0f}, deactivated_event{this} {} void control::set_threshold_function(const threshold_function_type& function) { threshold_function = function; } void control::evaluate(float value) { // Store activation state const bool was_active = active; // Re-evaluate activation state active = threshold_function(value); // Emit events if (active) { if (!was_active) { activated_publisher.publish(activated_event); } active_event.input_value = value; active_publisher.publish(active_event); } else { if (was_active) { deactivated_publisher.publish(deactivated_event); } } } void control::reset() { active = false; } } // namespace input