#ifndef _GUESS_H
#define _GUESS_H

class GuessGame
{
  public:
    
    GuessGame();            // initialize properly
    ~GuessGame();           // return new'd memory to heap, clean up

    // accessor and debugging functions

    void Print() const;     // print the "tree" used in the game

    // mutator (read/write/play) functions
    
    void ReadFile(const string & filename);   // read from named file
    void WriteFile(const string & filename);  // write to named file
    void Play();                              // play the game

  private:
    
    struct TreeNode                               // standard Tree node
    {
	string info;
	TreeNode * left;
	TreeNode * right;

	TreeNode(const string & s,
	     TreeNode * lchild = 0, TreeNode * rchild = 0)
	  : info(s),
	    left(lchild),
	    right(rchild)
	{ }
    };

    TreeNode * myRoot;                           // root of guessin tree

    // helper functions (need tree parameter)
    
    void DoDelete(TreeNode * root);              // delete tree at root
    void DoWrite(ostream & output,TreeNode * root) const;    // print tree    void BuildTree(istream & input,TreeNode * & root);       // build tree
};

#endif