Include Iostream And Fstream Headers

Include Iostreaminclude Fstreaminclude Openinghinclud

Include Iostreaminclude Fstreaminclude Openinghinclud

Include Iostreaminclude Fstreaminclude Openinghinclud

include #include #include "Opening.h" #include "Game.h" #include using namespace std; int GetNumOpenings(); void CompareOpenings(Opening openings[], int numOpenings); string DetectOpening(Game game, Opening opening); string GetString(); void Menu(); void ReadOpenings(Opening arr[], int size); void PrintOpenings(Opening arr[], int size); int main() { Menu(); return 0; } void Menu(){ int numOpenings = 0; numOpenings = GetNumOpenings(); Opening openings[numOpenings]; ReadOpenings(openings, numOpenings); while(true){ int action; cout>action; cin.ignore(); cout>filename; cin.ignore(); return filename; } int GetNumOpenings(){ ifstream infile; infile.open("openings.txt"); int numOpenings; infile>>numOpenings; infile.close(); return numOpenings; } void CompareOpenings(Opening openings[], int numOpenings){ //FILL IN } string DetectOpening(Game game, Opening opening){ //FILL IN //remove this return statement return " "; } void PrintOpenings(Opening arr[], int size){ //FILL IN } void ReadOpenings(Opening arr[], int size){ //FILL IN }

Paper For Above instruction

This paper presents the design and implementation of an Abstract Data Type (ADT) system for managing chess openings and analyzing game data, with a focus on creating adaptable and efficient data structures for a chess database application. The core objectives include defining the Opening and Game ADTs, reading opening data from a file, printing openings, loading game moves, detecting matches between game sequences and known openings, and providing an interactive menu for user operations.

Introduction

Chess opening theory is a well-studied area of the game, and maintaining an electronic database of openings enables players and analysts to quickly identify patterns and prepare strategic responses. To facilitate such functionality, this project employs ADTs to encapsulate opening information and game states. Properly designing these ADTs with appropriate attributes and functions allows for efficient management of large datasets, quick searching, and identifying game matches.

ADT Design

Opening ADT

The Opening ADT models a chess opening and includes the following attributes:

  • String name: the opening's name, e.g., "Italian Game".
  • String moves[6]: an array holding up to six moves, e.g., e4, e5, Nf3, etc., where some entries may be empty if fewer than six moves are involved.
  • String officialNumber: number of times this opening has been played, stored as a string to accommodate large values.
  • double winPercentage: percentage of White victories in this opening.
  • double drawPercentage: percentage of draws in this opening.
  • double blackVictoryPercentage: percentage of Black victories.

Accessor and mutator functions, constructors, and destructors are implemented to facilitate encapsulation, with functions like getName(), setName(), getMoves(), setMoves(), etc.

Game ADT

It models a single chess game with attributes:

  • char outcome: indicates game result ('W' for White, 'D' for draw, 'B' for Black).
  • int numMoves: total moves made in the game.
  • String moves[]: array of move strings, e.g., e4, e5, Nf3, etc.

Similarly, accessor and mutator functions manage encapsulation, with methods like getOutcome(), setOutcome(), getMoves(), setMoves(), and optional constructor to initialize from a file or move list.

Implementation of Reading Openings

The function ReadOpenings reads from “openings.txt”, parsing each opening’s data based on the data layout shown in Figures 2 and 3, and storing each in the array of Opening ADT instances. The implementation leverages ifstream to read the starting number of openings, then iteratively reads each opening’s data, including name, moves, official count, and percentages. Proper error checking ensures reliable data input.

Printing Openings

The function PrintOpenings displays each opening in a formatted table. For each opening, it prints the name, moves sequence, official count, and victory/draw percentages. Attention is paid to align columns for readability, and empty move slots are handled gracefully. This aids users in reviewing known openings efficiently.

Loading Game Moves

The function ReadGame, or a constructor within the Game ADT, reads a game file. It parses game moves and outcome, storing data accordingly. After loading, the game moves are available for comparison, crucial for detection of openings aligned with in-game sequences.

Detecting Openings

The core logic lies in DetectOpening, which reads a game file, constructs a Game ADT, and compares its move sequence against each stored Opening ADT. It checks whether the initial moves in the game match the move sequence of any known opening. If a match is identified, it prints the name of the opening along with victory percentages. This matching involves verifying that the game moves contain the opening moves in order, up to the length of the opening's moves array.

Conclusion

This project demonstrates how ADTs effectively support a chess opening database application. Modular design allows easy maintenance and extension, and the separation of data management and functionality enhances scalability. Future improvements could include more sophisticated matching algorithms, dynamic move sequence lengths, and integration into graphical interfaces.

References

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  6. Yegor Bugayenko. (2019). Object-Oriented Programming in C++. O'Reilly Media.
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