#ifndef AVOIDANCEH
#define AVOIDANCEH
#include <iostream>
#include "wabbit.h"

//a motion class that ranks its 8 possible moves based on collision avoidance
//with an object with a character specified in the constructor.
//used with the wall character (#) by the game, objects avoid picking moves
//that would run them into walls

class avoidance: protected virtual wabbit {
    char avoidChar;
protected:
    //because vision_avoidance will be derived from this and needs access
    virtual void decide(int *dx, int *dy) const;
    virtual void getInitialDirection(int *dx, int *dy) const { 
    //defaults to brownian selection, derived types can use vision
        *dx = rand() % 3 - 1;
        *dy = rand() % 3 - 1;
    }

public:
    avoidance(game *initial_g, unsigned initial_x, unsigned initial_y,
        char initial_c, char initial_avoid)
        : wabbit(initial_g, initial_x, initial_y, initial_c), 
		  avoidChar(initial_avoid) {}
};
#endif