cpp-danmaku/include/danmaku/bullet_pattern.hpp

//
//  bullet_pattern.hpp
//  danmaku
//
//  Created by Sam Jaffe on 5/26/19.
//  Copyright © 2019 Sam Jaffe. All rights reserved.
//

#pragma once

#include <json/forwards.h>
#include <memory>

namespace objects { namespace prototype {
  template <typename, typename...> class factory;
}}

namespace graphics {
  class manager;
}

namespace danmaku {
  class actor;

  struct bullet_timer {
    float const interval;
    float remaining{0.f};
  };

  struct bullet_pattern {
    virtual ~bullet_pattern() = default;
    virtual void update(float delta) = 0;
  };

  using bullet_pattern_factory =
      objects::prototype::factory<std::shared_ptr<bullet_pattern>, actor *,
                                  Json::Value const &,
                                  graphics::manager const &>;
}

#define BIND_BULLET_PATTERN(name, function)                                    \
  bool const _ = bullet_pattern_factory::instance().bind(name, function)