Bot.h

/*
 * PythonBot - A game by a developer for developers.
 * Copyright (C) 2015-2021 Jean-Marie BARAN (jeanmarie.baran@gmail.com)
 *
 * 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/>.
 *
 * Refer to 'LICENSE.txt' for the full notice.
 */

#ifndef BOT__HEADER
#define BOT__HEADER

#include <SFML/Graphics.hpp>
#
#include "BotConnector.h"
#include "Scan.h"

class Bot : public Object {
public:
  static float const botLength = 20.0f;
  static float const botWidth;

  /* Constructor. */
  Bot(sf::TcpListener &tcpListener, sf::Color color = sf::Color::White);

  /* Getters. */
  sf::Vector2f const &get_position() const;
  sf::Vector2f const &get_v1() const;
  sf::Vector2f const &get_v2() const;
  sf::Vector2f const &get_v3() const;
  unsigned int get_health() const;
  unsigned int get_bullets_left() const;
  unsigned int get_num_kills() const;
  std::string const &get_name() const;
  sf::Vector2f const &get_direction() const;
  sf::Shape const &get_SFML_shape() const;
  Scan &get_scan();
  BotConnector &get_connector();

  /* Setters. */
  void set_color(sf::Color color);
  void set_position(float x, float y);
  void set_scan(int distance, unsigned int radius);

  /* Decrease the number of bullets by one. */
  void fire_bullet();

  /* Increase the number of bullets by one (every half second). */
  void load_bullet();

  /* Increase the number of kills by one. */
  void add_kill();

  /* Return 'true' if the bot has remaining health points. */
  bool is_alive() const;

  /* Move the bot forward. */
  void move();

  /* Rotate the bot (offset in degrees). */
  void rotate(int degrees);

  /* Receive damages. */
  void receive_damages();

private:
  static float const botSpeed = 3.0f;

  sf::Vector2f m_v1;
  sf::Vector2f m_v2;
  sf::Vector2f m_v3;

  unsigned int m_health;
  unsigned int m_bulletsLeft;
  unsigned int m_numKills;
  std::string m_name;
  // Clock measuring time since last time a bullet was loaded.
  sf::Clock m_clockLastBulletLoaded;
  sf::Vector2f m_direction; // Directional vector (normalized).

  sf::ConvexShape m_SFMLShape;
  sf::ConvexShape m_SFMLDeadShape;

  Scan m_scan;
  BotConnector m_connector;

  /* Update the position of the vertices v1, v2, v3. Called when the bot moves
   * or rotates. */
  void update_vertices();

  /* Update the direction. Called when the bot rotates. */
  void update_direction();
};

#endif