everything until isSelect

src/backend/Board.java

@@ -7,19 +7,23 @@ public class Board {
 	private int colNum;
 	private int lineNum;
 	private Piece[][] board;
+	private int x;
+	private int y;
 
 	public Board(int colNum, int lineNum) {
 		this.colNum = colNum;
 		this.lineNum = lineNum;
 		this.board = new Piece[lineNum][colNum];
+		x = -1;
+		y = -1;
 	}
 
 	public int getWidth() {
-		return colNum;
+		return this.colNum;
 	}
 
 	public int getHeight() {
-		return lineNum;
+		return this.lineNum;
 	}
 
 	public int getTurnNumber() {
@@ -33,36 +37,43 @@ public class Board {
 	}
 
 	public void setPiece(boolean isWhite, PieceType type, int x, int y) {
-		
+		Piece piece = new Piece(isWhite,type,x,y);
+		board[y][x] = piece;
 	}
 
 	public void populateBoard() {
-		boolean white = true;
 		for (int i = 0; i < lineNum; i++) {
 			
+			boolean white = true;
 			if (i == 0 || i == 1) {
 				white = false;
 			}
 			
 			for (int j = 0; j < colNum; j++) {
 				if (i == 1 || i == 6) {
-					setPiece(white, PieceType.Pawn, j, i);
+					Piece pawn = new Piece(white, PieceType.Pawn, j, i);
+					board[i][j] = pawn;
 				}
 				else if (i == 0 || i == 7) {
 					if (j == 0 || j == 7) {
-						setPiece(white, PieceType.Rook, j, i);
+						Piece rook = new Piece(white, PieceType.Rook, j, i);
+						board[i][j] = rook;
 					}
 					else if (j == 1 || j == 6) {
-						setPiece(white, PieceType.Knight, j, i);
+						Piece knight = new Piece(white, PieceType.Knight, j, i);
+						board[i][j] = knight;
 					}
 					else if (j == 2 || j == 5) {
-						setPiece(white, PieceType.Bishop, j, i);
+						Piece bishop = new Piece(white, PieceType.Bishop, j, i);
+						board[i][j] = bishop;
 					}
 					else if (j == 3) {
-						setPiece(white, PieceType.Queen, j, i);
+						Piece queen = new Piece(white, PieceType.Queen, j, i);
+						board[i][j] = queen;
 					}
 					else if (j == 4) {
-						setPiece(white, PieceType.King, j, i);
+						Piece king = new Piece(white, PieceType.King, j, i);
+						board[i][j] = king;
 					}
 				}
 				
@@ -71,20 +82,43 @@ public class Board {
 	}
 	
 	public void cleanBoard() {
-		//TODO
+		for (int i = 0; i < lineNum; i++) {
+			for (int j = 0; j < colNum; j++) { 
+				board[i][j] = null;
+			}
+		}
 	}
 	
 	public String toString() {
-		
+		String str = "";
-		return "";
+		for (int i = 0; i < lineNum; i++) {
+			for (int j = 0; j < colNum; j++) {
+				
+				if (board[i][j] == null) {
+					str += "  ";
+				}
+				else if (board[i][j].isWhite() == true) {
+					str += "W";
+					str += board[i][j].getType().getSummary();
+				}
+				else if (board[i][j].isWhite() == false) {
+					str += "B";
+					str += board[i][j].getType().getSummary();
+				}
+				
+				str += ",";
+			}
+			str += "\n";
+		}
+		return str;
 	}
 	
 	public ArrayList<Piece> getPieces() {
 		ArrayList<Piece> pieces = new ArrayList<>();
-		for (int col=0; col<colNum; col++) {
+		for (int col = 0; col < colNum; col ++) {
-			for (int row=0; row<lineNum; row++) {
+			for (int row = 0; row < lineNum; row ++) {
-				Piece Piece=board[row][col];
+				Piece Piece = board[row][col];
-				if (Piece!=null) {
+				if (Piece != null) {
 					pieces.add(Piece);
 				}
 			}
@@ -94,12 +128,47 @@ public class Board {
 	}
 
 	public void userTouch(int x, int y) {
-		//TODO
+		boolean prevSelect = true;
+		if (this.x == -1 && this.y == -1) {
+			prevSelect = false;
+		}
 		
+		if (prevSelect == true) {
+			if (this.x == x && this.y == y) {
+				this.x = -1;
+				this.y = -1;
+			}
+			else if (board[this.y][this.x] == null) {
+				this.x = -1;
+				this.y = -1;
+			}
+			else {
+				board[this.y][this.x].setX(x);
+				board[this.y][this.x].setY(y);
+				board[y][x] = board[this.y][this.x];
+				board[this.y][this.x] = null;
+				this.x = -1;
+				this.y = -1;
+			}
+		}
+		else {
+			this.x = x;
+			this.y = y;
+		}
 	}
 
 	public boolean isSelected(int x, int y) {
-		//TODO
+		if (this.x != -1 && this.y != -1) {
+			if (this.x == x && this.y == y) {
+				return true;
+			}
+			
+			else if (board[this.y][this.x] == null) {
+				this.x = -1;
+				this.y = -1;
+				return false;
+			}
+		}
 		return false;
 	}
 	

src/backend/Piece.java

@@ -4,6 +4,15 @@ public class Piece {
 
 	private int x;
 	private int y;
+	private boolean isWhite;
+	private PieceType type;
+	
+	public Piece(boolean isWhite, PieceType type, int x, int y) {
+		this.isWhite = isWhite;
+		this.type = type;
+		this.x = x;
+		this.y = y;
+	}
 	
 	public int getX() {
 		return this.x;
@@ -13,13 +22,20 @@ public class Piece {
 		return this.y;
 	}
 	
+	public void setX(int x) {
+		this.x = x;
+	}
+
+	public void setY(int y) {
+		this.y = y;
+	}
+	
 	public PieceType getType() {
-		
+		return this.type;
-		return null;
 	}
 	
 	public boolean isWhite() {
-		return false;
+		return this.isWhite;
 	}
 	
 }

src/windowInterface/JPanelChessBoard.java

@@ -80,7 +80,7 @@ public class JPanelChessBoard extends JPanel {
 	@Override
 	protected void paintComponent(Graphics g) {
 		super.paintComponent(g);
-		this.setBackground(Color.white);
+		this.setBackground(Color.black);
 		if(pieceSelectorMode) {
 			g.drawImage(
 					spriteSheet, 
@@ -97,7 +97,7 @@ public class JPanelChessBoard extends JPanel {
 			float cellWidth = cellWidth();
 			float cellHeight = cellHeight();
 
-			g.setColor(Color.blue);
+			g.setColor(Color.white);
 			for(int x=0; x<myGame.getWidth();x++) {
 				for (int y=0; y<myGame.getHeight(); y++) {
 					boolean isSelect = myGame.isSelected(x,y);