[1, 2, 3단계 - 체스] 기론(김규철) 미션 제출합니다.

src/main/java/chess/controller/ChessController.java

@@ -15,11 +15,9 @@
 
 public class ChessController {
     public void run() {
-
         Command command = startGame();
         Board board = Board.create(Pieces.createInit());
-        Turn turn = Turn.init();
-        command = playGame(turn, command, board);
+        command = playGame(command, board);
         OutputView.printFinishMessage();
         finishGame(command, board);
     }
@@ -38,7 +36,8 @@ private Command startGame() {
 
     }
 
-    private Command playGame(Turn turn, Command command, Board board) {
+    private Command playGame(Command command, Board board) {
+        Turn turn = Turn.init();
         while (isRunning(command, board)) {
             turn = nextTurn(command, board, turn);
             OutputView.printBoard(convertToPieceDtos(board.getPieces()));

src/main/java/chess/piece/position/Position.java

@@ -1,9 +1,14 @@
 package chess.piece.position;
 
+import java.util.HashMap;
+import java.util.Map;
 import java.util.Objects;
 
 public final class Position {
     private static final int ASCII_TO_INT = 96;
+    private static final int CHESS_POSITION_SIZE = 64;
+    private static final Map<String, Position> CACHE = new HashMap<>(CHESS_POSITION_SIZE);
+
     private final Rank rank;
     private final File file;
 
@@ -15,8 +20,11 @@ private Position(File file, Rank rank) {
     public static Position of(char... position) {
         File file = File.valueOf(position[0] - ASCII_TO_INT);
         Rank rank = Rank.valueOf(Character.getNumericValue(position[1]));
+        return CACHE.computeIfAbsent(createKey(file, rank), absent -> new Position(file, rank));
+    }
 
-        return new Position(file, rank);
+    private static String createKey(File file, Rank rank) {
+        return file.name() + rank.name();
     }
 
     public boolean isHorizontal(Position position) {