From 1a6a29366f7c2f695689b07cb6cd238d62c1f92b Mon Sep 17 00:00:00 2001
From: yermyerm <songkyuu@gmail.com>
Date: Mon, 11 Dec 2023 23:35:33 +0900
Subject: [PATCH] =?UTF-8?q?=EC=88=AB=EC=9E=90=20=EC=95=BC=EA=B5=AC=20?=
 =?UTF-8?q?=ED=94=84=EB=A1=9C=EA=B7=B8=EB=9E=A8=20=EA=B5=AC=ED=98=84?=
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---
 src/main/java/baseball/Application.java | 115 +++++++++++++++++++++++-
 1 file changed, 114 insertions(+), 1 deletion(-)

diff --git a/src/main/java/baseball/Application.java b/src/main/java/baseball/Application.java
index dd95a34214..4958533db3 100644
--- a/src/main/java/baseball/Application.java
+++ b/src/main/java/baseball/Application.java
@@ -1,7 +1,120 @@
 package baseball;
 
+import camp.nextstep.edu.missionutils.Console;
+import camp.nextstep.edu.missionutils.Randoms;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+
 public class Application {
     public static void main(String[] args) {
-        // TODO: 프로그램 구현
+        boolean newGame = true;
+        while (newGame) {
+            System.out.println("숫자 야구 게임을 시작합니다.");
+
+            //랜덤한 정답 생성
+            List<Integer> answer = randomAnswerMaker();
+
+            boolean correctAnswer = false;
+            while (!correctAnswer) {
+                System.out.print("숫자를 입력해주세요 : ");
+                String input = Console.readLine();
+
+                //입력값 잘못되었을때 에러 발생후 종료
+                if (Integer.parseInt(input) < 100 || Integer.parseInt(input) > 999) {
+                    throw new IllegalArgumentException();
+                }
+                List<Integer> inputList = inputToList(input);
+                if (inputList.size() != 3) {
+                    throw new IllegalArgumentException();
+                }
+
+                //한글자씩 뜯어서 자리 맞는지 비교, 볼 스트라이크 세고 반환
+                HashMap<String, Integer> checkedResult = inputChecker(answer, inputList);
+                correctAnswer = resultPrinter(checkedResult);
+            }
+            //게임 종료 후 다시 시작하거나 종료하기
+            System.out.println("게임을 새로 시작하려면 1, 종료하려면 2를 입력하세요.");
+            int again = Integer.parseInt(Console.readLine());
+            if (again == 2) {
+                newGame = false;
+            }
+            if (again !=1 && again != 2) {
+                throw new IllegalArgumentException();
+            }
+        }
+    }
+
+    private static List<Integer> inputToList(String input) {
+        List<Integer> inputList = new ArrayList<>();
+        for (int i = 0; i <= 2; i++) {
+            int inputNumber = Integer.parseInt(String.valueOf(input.charAt(i)));
+            if (!inputList.contains(inputNumber) &&
+                    1 <= inputNumber && inputNumber <= 9) {
+                inputList.add(inputNumber);
+            }
+        }
+        return inputList;
+    }
+
+    private static List<Integer> randomAnswerMaker() {
+        List<Integer> computer = new ArrayList<>();
+        while (computer.size() < 3) {
+            int randomNumber = Randoms.pickNumberInRange(1, 9);
+            if (!computer.contains(randomNumber)) {
+                computer.add(randomNumber);
+            }
+        }
+        return computer;
+    }
+
+    private static HashMap<String, Integer> inputChecker(List<Integer> answer, List<Integer> input) {
+        int ball = 0;
+        int strike = 0;
+        for (int i = 0; i <= 2; i++) {
+            int number = input.get(i);
+            //answer에 있는 number의 인덱스가 i와 같으면 스트라이크에 +1, -1이 아니면 볼에 +1
+            if (answer.indexOf(number) == i) {
+                strike++;
+            } else if (answer.contains(number)) {
+                ball++;
+            }
+        }
+        HashMap<String, Integer> result = new HashMap<>();
+        result.put("볼", ball);
+        result.put("스트라이크", strike);
+        return result;
+    }
+
+    private static boolean resultPrinter(HashMap<String, Integer> result) {
+        //스트라이크와 볼 개수에 따라서 출력
+        int strike = result.get("스트라이크");
+        int ball = result.get("볼");
+
+        StringBuilder stringBuilder = new StringBuilder();
+        if (ball != 0) {
+            stringBuilder.append(ball).append("볼");
+        }
+        if (strike != 0) {
+            if (!stringBuilder.isEmpty()) {
+                stringBuilder.append(" ");
+            }
+            stringBuilder.append(strike).append("스트라이크");
+        }
+        if (strike == 0 && ball == 0) {
+            stringBuilder.append("낫싱");
+        }
+        System.out.println(stringBuilder);
+
+        if (strike == 3) {
+            System.out.println("3개의 숫자를 모두 맞히셨습니다! 게임 종료");
+            return true;
+        } else {
+            return false;
+        }
     }
 }
+
+
+