This commit is contained in:
Paul H 2025-02-15 15:07:13 +01:00
commit 26c8e9b7e2
16 changed files with 586 additions and 0 deletions

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Welcome to Vivi's Chess Game!
A B C D E F G H
1 ■ □ ■ □ ■ □ ■ □
2 □ ■ □ ■ □ ■ □ ■
3 ■ □ ■ □ ■ □ ■ □
4 □ ■ □ ■ □ ■ □ ■
5 ■ □ ■ □ ■ □ ■ □
6 □ ■ □ ■ □ ■ □ ■
7 ■ □ ■ □ ■ □ ■ □
8 □ ■ □ ■ □ ■ □ ■
It is white's turn: [from:to]
A7:A5 <-- user input
Moving white 'Pawn' from A7 to A5
A B C D E F G H
1 ■ □ ■ □ ■ □ ■ □
2 □ ■ □ ■ □ ■ □ ■
3 ■ □ ■ □ ■ □ ■ □
4 □ ■ □ ■ □ ■ □ ■
5 ■ □ ■ □ ■ □ ■ □
6 □ ■ □ ■ □ ■ □ ■
7 ■ □ ■ □ ■ □ ■ □
8 □ ■ □ ■ □ ■ □ ■
It is black's turn: [from:to]
D2:D3
Moving black 'Pawn' from D2 to D3
A B C D E F G H
1 ■ □ ■ □ ■ □ ■ □
2 □ ■ □ ■ □ ■ □ ■
3 ■ □ ■ □ ■ □ ■ □
4 □ ■ □ ■ □ ■ □ ■
5 ■ □ ■ □ ■ □ ■ □
6 □ ■ □ ■ □ ■ □ ■
7 ■ □ ■ □ ■ □ ■ □
8 □ ■ □ ■ □ ■ □ ■
It is white's turn: [from:to]
B2:B3
Illegal move, try again: [from:to]
A8:A1
Illegal move, try again: [from:to]
Hello World!
Illegal input, try again: [from:to]
Z6:X9
Illegal input, try again: [from:to]

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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.example</groupId>
<artifactId>vivi-certificate</artifactId>
<version>1.0-SNAPSHOT</version>
</parent>
<artifactId>chess</artifactId>
<properties>
<maven.compiler.source>17</maven.compiler.source>
<maven.compiler.target>17</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
</project>

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package de.vivi.chess;
import de.vivi.chess.board.Board;
import de.vivi.chess.game.Game;
public class Main {
public static void main(String[] args) {
Game game = new Game();
game.play();
}
}

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package de.vivi.chess.board;
import de.vivi.chess.pieces.Piece;
public class Board {
private static final int SIZE = 8;
private final Piece[/* column */][/* row */] grid;
public Board() {
grid = new Piece[SIZE][SIZE];
setup();
}
/**
* TODO: implement
* <p>
* This method should setup the board like it is common
* for a chess game. Black is in the top two rows, white
* in the bottom two rows. "White queen, white field, black
* queen, black field".
*/
private void setup() {
}
/**
* TODO: implement
* <p>
* Moves the piece at the from field to the to field.
* Doesn't check for validity, this has to be done somewhere
* else. If a piece is already at the to field, this piece is
* just getting replaced.
*/
public void move(Field from, Field to) {
}
/**
* TODO: implement
* <p>
* Returns the piece at the given field. If no piece is
* present it just returns null.
*/
public Piece getPiece(Field field) {
return null;
}
@Override
public String toString() {
StringBuilder result = new StringBuilder();
boolean whiteField = true;
result.append(" ");
for (int column = 0; column < SIZE; column++) {
result.append((char) ('A' + column)).append(' ');
}
result.append('\n');
for (int row = 0; row < SIZE; row++) {
result.append((char) ('1' + (char) row)).append(' ');
for (int column = 0; column < SIZE; column++) {
Piece piece = grid[column][row];
if (piece == null) {
result.append(whiteField ? '\u25a0' : '\u25a1');
} else {
result.append(piece.getSymbol());
}
result.append(' ');
whiteField = !whiteField;
}
result.append('\n');
whiteField = !whiteField;
}
return result.toString();
}
}

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package de.vivi.chess.board;
/**
* TODO: implement fields and constructor
* <p>
* This class contains information to identify a single field
* on the board by its column and row.
*/
public class Field {
/**
* TODO: implement
* <p>
* Returns a new field that represents the field at the
* column and row indices.
*/
public static Field from(int column, int row) {
return null;
}
/**
* TODO: implement
* <p>
* Returns a new field that represents the field represented
* by the provided string (like "A5", "E7", ...). If the string
* is not valid, because it is garbage (like "hello", "world", ...)
* or the indices are out of bounds (like "K3", "B9", ...")
* it should throw an IllegalArgument exception.
*/
public static Field fromString(String value) throws IllegalArgumentException {
return null;
}
public int getColumn() {
// TODO: implement
return -1;
}
public int getRow() {
// TODO: implement
return -1;
}
}

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package de.vivi.chess.game;
import de.vivi.chess.board.Board;
import de.vivi.chess.pieces.Color;
public class Game {
private final Board board;
private Color player;
/**
* TODO: implement
*/
public Game() {
board = null;
player = null;
}
/**
* TODO: implement
* <p>
* Starts the game and should process the game like it is
* specified inside example-output.txt.
*/
public void play() {
}
}

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package de.vivi.chess.pieces;
/**
* TODO: add colors (white and black)
*/
public enum Color {
}

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package de.vivi.chess.pieces;
import de.vivi.chess.board.Board;
import de.vivi.chess.board.Field;
public abstract class Piece {
/**
* TODO: implement
* <p>
* This method needs to be implemented in each piece by
* using inheritance. It returns true if the move from the
* from field to the to field is considered a valid move
* for the type of piece this method is called on. Otherwise
* it returns false.
*/
public abstract boolean isValidMove(Board board, Field from, Field to);
public Color getColor() {
// TODO: implement
return null;
}
public Type getType() {
// TODO: implement
return null;
}
/**
* TODO: implement
* <p>
* Use unicode symbols for the chess pieces. You can find
* them here:
* <a href="https://en.wikipedia.org/wiki/Chess_symbols_in_Unicode">Unicode chess pieces</a>
*/
public char getSymbol() {
return 0;
}
}

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package de.vivi.chess.pieces;
/**
* TODO: add types
* <p>
* This enum should contain all chess piece types.
* The types are:
*
* - king (König)
* - queen (Dame)
* - bishop (Läufer)
* - knight (Springer/Pferd)
* - rook (Turm)
* - pawn (Bauer)
*/
public enum Type {
}

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chess/todo.txt Normal file
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Everything you need to do is marked with a TODO comment
Additionally, create a chess piece class that extends Piece for every type of chess piece.
For example Pawn.java, King.java, ...
For this you can also look into Type.java