//  SuperTux - Badguy "Snail"
//  Copyright (C) 2006 Christoph Sommer <christoph.sommer@2006.expires.deltadevelopment.de>
//
//  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/>.

#ifndef HEADER_SUPERTUX_BADGUY_SNAIL_HPP
#define HEADER_SUPERTUX_BADGUY_SNAIL_HPP

#include "badguy/walking_badguy.hpp"
#include "object/portable.hpp"

/** Badguy "Snail" - a snail-like creature that can be flipped and
    tossed around at an angle */
class Snail final :
  public WalkingBadguy,
  public Portable
{
public:
  Snail(const ReaderMapping& reader);

  virtual void initialize() override;
  virtual void collision_solid(const CollisionHit& hit) override;
  virtual HitResponse collision_badguy(BadGuy& badguy, const CollisionHit& hit) override;
  virtual HitResponse collision_player(Player& player, const CollisionHit& hit) override;
  virtual bool can_break() const override;

  virtual void active_update(float dt_sec) override;

  virtual bool is_freezable() const override;
  virtual std::string get_class() const override { return "snail"; }
  virtual std::string get_display_name() const override { return _("Snail"); }

  virtual bool is_portable() const override;
  virtual void ungrab(MovingObject& , Direction dir_) override;
  virtual void grab(MovingObject&, const Vector& pos, Direction dir_) override;

protected:
  virtual bool collision_squished(GameObject& object) override;

  void be_normal(); /**< switch to state STATE_NORMAL */
  void be_flat(); /**< switch to state STATE_FLAT */
  void be_kicked(); /**< switch to state STATE_KICKED_DELAY */
  void be_grabbed();

private:
  enum State {
    STATE_NORMAL, /**< walking around */
    STATE_FLAT, /**< flipped upside-down */
    STATE_KICKED_DELAY, /**< short delay before being launched */
    STATE_KICKED, /**< launched */
    STATE_GRABBED /**< grabbed by tux */
  };

private:
  State state;
  Timer kicked_delay_timer; /**< wait time until switching from STATE_KICKED_DELAY to STATE_KICKED */
  int   squishcount;

private:
  Snail(const Snail&) = delete;
  Snail& operator=(const Snail&) = delete;
};

#endif

/* EOF */
