Merge branch 'ChessEngine' into Main

schach/pom.xml

@@ -1,6 +1,7 @@
 <?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"
+<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>
 
@@ -10,7 +11,6 @@
 
   <name>schach</name>
   <description>A simple schach.</description>
-  <!-- FIXME change it to the project's website -->
   <url>http://www.example.com</url>
 
   <properties>
@@ -19,16 +19,31 @@
     <maven.compiler.target>8</maven.compiler.target>
   </properties>
 
+  <repositories>
+    <repository>
+      <id>jitpack.io</id>
+      <url>https://jitpack.io</url>
+    </repository>
+  </repositories>
+
   <dependencies>
+    <!-- Schachlib (bhlangonijr) -->
+    <dependency>
+      <groupId>com.github.bhlangonijr</groupId>
+      <artifactId>chesslib</artifactId>
+      <version>1.3.4</version>
+    </dependency>
+    <!-- JUnit 3 (wie im Template, ggf. auf JUnit 4/5 upgraden für moderne Projekte) -->
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
       <version>3.8.1</version>
+      <scope>test</scope>
     </dependency>
   </dependencies>
 
   <build>
-    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
+    <pluginManagement>
       <plugins>
         <plugin>
           <artifactId>maven-clean-plugin</artifactId>
@@ -42,7 +57,6 @@
           <artifactId>maven-project-info-reports-plugin</artifactId>
           <version>3.6.1</version>
         </plugin>
-        <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
         <plugin>
           <artifactId>maven-resources-plugin</artifactId>
           <version>3.3.1</version>

schach/src/main/java/de/hs_mannheim/informatik/chess/main/Main.java

@@ -1,9 +1,11 @@
 package de.hs_mannheim.informatik.chess.main;
 import de.hs_mannheim.informatik.chess.gui.Gui;
 
+
 public class Main{
 	
     public static void main( String[] args ){
     	new Gui();
+
     }
 }

schach/src/main/java/de/hs_mannheim/informatik/chess/model/ChessEngine.java

@@ -1,5 +1,90 @@
 package de.hs_mannheim.informatik.chess.model;
 
+import java.util.ArrayList;
+import java.util.List;
+
+import com.github.bhlangonijr.chesslib.Board;
+import com.github.bhlangonijr.chesslib.Piece;
+import com.github.bhlangonijr.chesslib.Square;
+import com.github.bhlangonijr.chesslib.move.Move;
+
 public class ChessEngine {
+	private Board board;
+
+    public ChessEngine() {
+        board = new Board();
+    }
+    
+    public boolean move(String from, String to) {
+        Move move = new Move(Square.valueOf(from.toUpperCase()), Square.valueOf(to.toUpperCase()));
+        if (board.legalMoves().contains(move)) {
+            board.doMove(move);
+            return true;
+        } else {
+            return false;
+        }
+    }
+    
+    public List<String> getLegalDestinations(String from) {
+        List<String> destinations = new ArrayList<>();
+        Square fromSq = Square.valueOf(from.toUpperCase());
+        for (Move move : board.legalMoves()) {
+            if (move.getFrom().equals(fromSq)) {
+                destinations.add(move.getTo().toString()); // z.B. "E4"
+            }
+        }
+        return destinations;
+    }
+    
+    public String getPieceAt(String square) {
+        Piece piece = board.getPiece(Square.valueOf(square.toUpperCase()));
+        return piece.toString(); // z.B. "WHITE_PAWN"
+    }
+    
+    public String[][] getBoardUnicode() {
+        String[][] unicodeBoard = new String[8][8];
+        for (int rank = 8; rank >= 1; rank--) {
+            for (int file = 0; file < 8; file++) {
+                Square square = Square.valueOf("" + (char)('A' + file) + rank);
+                Piece piece = board.getPiece(square);
+                unicodeBoard[8-rank][file] = pieceToUnicode(piece);
+            }
+        }
+        return unicodeBoard;
+    }
+    
+    private String pieceToUnicode(Piece piece) {
+        switch (piece) {
+            case WHITE_KING: return "♔";
+            case WHITE_QUEEN: return "♕";
+            case WHITE_ROOK: return "♖";
+            case WHITE_BISHOP: return "♗";
+            case WHITE_KNIGHT: return "♘";
+            case WHITE_PAWN: return "♙";
+            case BLACK_KING: return "♚";
+            case BLACK_QUEEN: return "♛";
+            case BLACK_ROOK: return "♜";
+            case BLACK_BISHOP: return "♝";
+            case BLACK_KNIGHT: return "♞";
+            case BLACK_PAWN: return "♟";
+            default: return " ";
+        }
+    }
+    
+    public boolean isMated() {
+        return board.isMated();
+    }
+    
+    public boolean isStalemate() {
+        return board.isStaleMate();
+    }
+    
+    public boolean isDraw() {
+        return board.isDraw();
+    }
+    
+    public String getCurrentPlayer() {
+        return board.getSideToMove().toString(); // "WHITE" oder "BLACK"
+    }
     
 }