#include <iostream>
using namespace std;

struct coords{
	float x;
	float y;
	float z;
	float lenght;
};

class ocean{
	public:
	coords ocean_c;
	int box;
	float oc_speed;

	ocean();
	ocean(coords oc_input, int box_in, float oc_speed_in);
	coords coords_to_unit(coords temp);
	void change_ocean(coords temp);
	void change_ocean_speed(float oc_speed_in);
};

class fish:public ocean{
	public:
	coords fish_c;
	coords fish_direction;
	int fish_speed, time;

	fish();
	fish(coords oc_input, int box_in, float oc_speed_in, coords fish_input, coords fish_directions_input, int fish_speed_in);
	void show_coordinates();
	void move(float time);
	void change_fish(coords temp);
	void change_fish_speed(int fish_speed_in);

	friend ostream &operator<<(ostream& s, fish& d);
};