juste better

app/src/main/java/chess/io/commands/GetAllowedMovesCommand.java

@@ -0,0 +1,42 @@
+package chess.io.commands;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import chess.io.Command;
+import chess.io.CommandResult;
+import chess.io.OutputSystem;
+import chess.model.ChessBoard;
+import chess.model.Coordinate;
+import chess.model.Game;
+import chess.model.Piece;
+
+public class GetAllowedMovesCommand extends Command {
+
+	private final Coordinate start;
+	private List<Coordinate> destinations;
+
+	public GetAllowedMovesCommand(Coordinate start) {
+		this.start = start;
+		this.destinations = new ArrayList<>();
+	}
+
+	@Override
+	public CommandResult execute(Game game, OutputSystem outputSystem) {
+		final ChessBoard board = game.getBoard();
+		Piece piece = board.pieceAt(start);
+
+		if (piece == null)
+			return CommandResult.NotAllowed;
+
+		if (piece.getColor() != game.getPlayerTurn())
+			return CommandResult.NotAllowed;
+
+		this.destinations = board.getAllowedMoves(start);
+		return CommandResult.NotMoved;
+	}
+
+	public List<Coordinate> getDestinations() {
+		return destinations;
+	}
+}

app/src/main/java/chess/io/commands/GetPieceAtCommand.java

@@ -0,0 +1,34 @@
+package chess.io.commands;
+
+import chess.io.Command;
+import chess.io.CommandResult;
+import chess.io.OutputSystem;
+import chess.model.Coordinate;
+import chess.model.Game;
+import chess.model.Piece;
+
+public class GetPieceAtCommand extends Command{
+
+	private final Coordinate pieceCoords;
+	private Piece piece;
+
+	public GetPieceAtCommand(Coordinate pieceCoords) {
+		this.pieceCoords = pieceCoords;
+		this.piece = null;
+	}
+
+	@Override
+	public CommandResult execute(Game game, OutputSystem outputSystem) {
+		if (!pieceCoords.isValid())
+			return CommandResult.NotAllowed;
+
+		this.piece = game.getBoard().pieceAt(pieceCoords);
+
+		return CommandResult.NotMoved;
+	}
+
+	public Piece getPiece() {
+		return piece;
+	}
+
+}

app/src/main/java/chess/io/commands/NewGameCommand.java

@@ -49,6 +49,8 @@ public class NewGameCommand extends Command {
 
 		game.resetPlayerTurn();
 
+		outputSystem.gameStarted();
+
 		return CommandResult.NotMoved;
 	}
 }