#ifndef WABBITH
#define WABBITH
#include <list>
#include "terminal.h"
using namespace std;

class wabbit {
	const terminal *const t;
	unsigned x, y;
	const char c;

	//move calls these functions to decide who eats who.  wabbit w1 will eat
	//wabbit w2 if w1.hungry() > w2.bitter(), i.e., if w1's hunger is
	//stronger than w2's bitterness.
	virtual int hungry() const = 0;
	virtual int bitter() const = 0;

	//move calls this function to decide which direction to move in.
	virtual void decide(int *dx, int *dy) const = 0;

	//move calls this function if this wabbit tries to move off the screen,
	//or bumps into another wabbit that it can neither eat nor be eaten by.
	//(Will also be called by manual::decide.)
	virtual void punish() const {}

	wabbit(const wabbit& another);             //deliberately undefined
	wabbit& operator=(const wabbit& another);  //ditto

protected:
	char key() const {return t->key();}   //called by wolf::decide
	void beep() const {t->beep();}        //called by wolf::punish

public:
	wabbit(const terminal& init_t, unsigned init_x, unsigned init_y,
		char init_c);
	virtual ~wabbit();

	bool move();

	static list<wabbit *> master;
	static wabbit *get(unsigned x, unsigned y);
};

#endif