/*
Delete any other wabbit that got eaten during the move (line 30), but do not
delete this wabbit.  If this wabbit was eaten during the move, return false
(line 34); otherwise return true.
*/

bool wabbit::move()
{
	int dx;   //uninitialized variables
	int dy;
	decide(&dx, &dy);

	if (dx and dy are both zero) {
		return true;
	}

	const unsigned newx = x + dx;
	const unsigned newy = y + dy;

	if (!g->term.in_range(newx, newy)) {
		punish();
		return true;
	}

	if (wabbit *const other = g->get(newx, newy)) {
		const bool I_ate_him =  this->hungry() > other->bitter();
		const bool he_ate_me = other->hungry() >  this->bitter();

		if (I_ate_him) {
			delete other;
		}

		if (he_ate_me) {
			return false;   //not allowed to delete myself
		}

		if (!I_ate_him) {
			//I bumped into a wabbit that I could neither eat nor be
			//eaten by.
			punish();
			return true;
		}
	}

	g->term.put(x, y);      //Erase this wabbit from its old location.
	x = newx;
	y = newy;
	g->term.put(x, y, c);   //Redraw this wabbit at its new location.

	return true;
}