Added pawn rendering

+ Initializing pawns in Board
+ Piece rendering in BoardPanel
- Fixed size initialization bug in BoardPanel
+ Pawn class
+ Color property in Piece

src/dev/kske/chess/Board.java

@@ -1,5 +1,7 @@
 package dev.kske.chess;
 
+import dev.kske.chess.Piece.Color;
+
 /**
  * Project: <strong>Chess</strong><br>
  * File: <strong>Board.java</strong><br>
@@ -11,11 +13,16 @@ public class Board {
 	private Piece[][] boardArr;
 
 	public Board() {
+		boardArr = new Piece[8][8];
 		initializeDefaultPositions();
 	}
 
 	private void initializeDefaultPositions() {
-
+		// Initialize pawns
+		for (int i = 0; i < 8; i++) {
+			boardArr[i][1]	= new Pawn(Color.BLACK);
+			boardArr[i][6]	= new Pawn(Color.WHITE);
+		}
 	}
 
 	/**

src/dev/kske/chess/BoardPanel.java

@@ -35,6 +35,7 @@ public class BoardPanel extends JPanel {
 
 	public BoardPanel(Board board) {
 		this();
+		setSize(getPreferredSize());
 		setBoard(board);
 	}
 
@@ -59,19 +60,27 @@ public class BoardPanel extends JPanel {
 	@Override
 	protected void paintComponent(Graphics g) {
 		super.paintComponent(g);
+
+		// Draw the board
 		g.setColor(Color.white);
 		for (int i = 0; i < 8; i++)
 			for (int j = 0; j < 8; j++) {
-				if (j > 0) g.setColor(g.getColor().equals(Color.white) ? Color.black : Color.white);
+				if (j > 0) g.setColor(g.getColor().equals(Color.white) ? Color.lightGray : Color.white);
 				g.fillRect(tileSize * i, tileSize * j, tileSize, tileSize);
 			}
+
+		// Draw the pieces if a board is present
+		if (board != null) for (int i = 0; i < 8; i++)
+			for (int j = 0; j < 8; j++)
+				if (board.getBoardArr()[i][j] != null)
+					g.drawImage(getPieceTexture(board.getBoardArr()[i][j]), i * tileSize, j * tileSize, this);
 	}
 
-	private static void loadPieceTextures() {
-		/*
+	/**
 	 * Load every PNG file inside the res/pieces directory.
-		 * The filenames without extensions are used as keys in the map.
+	 * The filenames without extensions are used as keys in the map textures.
 	 */
+	private static void loadPieceTextures() {
 		textures = new HashMap<>();
 		File	dir		= new File("res/pieces");
 		File[]	files	= dir.listFiles((File parentDir, String name) -> name.toLowerCase().endsWith(".png"));
@@ -79,6 +88,17 @@ public class BoardPanel extends JPanel {
 			textures.put(file.getName().replaceFirst("[.][^.]+$", ""), TextureLoader.loadScaledImage(file, tileSize));
 	}
 
+	/**
+	 * Loads a piece texture fitting to a piece object
+	 * 
+	 * @param piece The piece from which the texture properties are taken
+	 * @return The fitting texture
+	 */
+	private static Image getPieceTexture(Piece piece) {
+		String key = piece.getType().toString().toLowerCase() + "_" + piece.getColor().toString().toLowerCase();
+		return textures.get(key);
+	}
+
 	@Override
 	public Dimension getMinimumSize() { return getPreferredSize(); }
 

src/dev/kske/chess/Chess.java

@@ -48,7 +48,7 @@ public class Chess {
 		mframe.setBounds(100, 100, 740, 740);
 		mframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 
-		BoardPanel boardPanel = new BoardPanel();
+		BoardPanel boardPanel = new BoardPanel(new Board());
 		boardPanel.setLayout(null);
 		mframe.getContentPane().add(boardPanel, BorderLayout.CENTER);
 	}

src/dev/kske/chess/Pawn.java

@@ -0,0 +1,17 @@
+package dev.kske.chess;
+
+/**
+ * Project: <strong>Chess</strong><br>
+ * File: <strong>Pawn.java</strong><br>
+ * Created: <strong>01.07.2019</strong><br>
+ * Author: <strong>Kai S. K. Engelbart</strong>
+ */
+public class Pawn extends Piece {
+
+	public Pawn(Color color) {
+		super(color);
+	}
+
+	@Override
+	public Type getType() { return Type.PAWN; }
+}

src/dev/kske/chess/Piece.java

@@ -8,9 +8,21 @@ package dev.kske.chess;
  */
 public abstract class Piece {
 
+	private Color color;
+
+	public Piece(Color color) {
+		this.color = color;
+	}
+
 	public abstract Type getType();
 
+	public Color getColor() { return color; }
+	
 	public static enum Type {
 		KING, QUEEN, ROOK, KNIGHT, BISHOP, PAWN;
 	}
+
+	public static enum Color {
+		WHITE, BLACK;
+	}
 }