move.h

/* Written by Todd Doucet. */
#pragma once
#include <string>
#include "board.h"

class moves
{
public:
    struct move { int from, to, hit; };
    moves() = default;

    move& operator[](int i)        { return m[i]; }
    move  operator[](int i) const  { return m[i]; }

    int count() const  { return cnt; }
    void push(move mp) { m[cnt++] = mp; }
    move pop()         { return m[--cnt]; }
    void clear()       { cnt = 0; }

private:
    move m[4] = {0};
    int cnt = 0;
};

class callBack
{
public:
    moves m;
    int nMoves;
    int checkersToPlay;

    virtual int callBackF(const board &b) = 0;
    virtual ~callBack(){ }
    callBack() : nMoves(0), checkersToPlay(0) { }
};

class nullCallBack : public callBack
{
    int callBackF(const board &b) { return 0; }
};

std::string moveStr(moves& m);

int plays(const board& b, callBack& callB);
int numMoves(board& b);
int checkersToPlay(board& b);
void applyMove(board& b,const moves& m);