[황명하_BackEnd] 2주차 과제 제출합니다

build.gradle

@@ -12,6 +12,9 @@ repositories {
 
 dependencies {
     implementation 'com.github.woowacourse-projects:mission-utils:1.1.0'
+
+    //testImplementation 'org.junit.jupiter:junit-jupiter-api:5.9.1'
+    //testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.9.1'
 }
 
 java {

src/main/java/racingcar/Application.java

@@ -1,7 +1,10 @@
 package racingcar;
 
+import racingcar.controller.RacingController;
+
 public class Application {
     public static void main(String[] args) {
-        // TODO: 프로그램 구현
+        RacingController racingController = new RacingController();
+        racingController.start();
     }
-}
+}

src/main/java/racingcar/controller/RacingController.java

@@ -0,0 +1,47 @@
+package racingcar.controller;
+
+import racingcar.model.RacingGame;
+import racingcar.view.InputView;
+import racingcar.view.OutputView;
+import java.util.HashSet;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class RacingController {
+
+    public void start() {
+        String namesInput = InputView.readCarNames();
+
+        List<String> carNames = Arrays.stream(namesInput.split(",", -1))
+                .collect(Collectors.toList());
+
+        for (String name : carNames) {
+            if (name.contains(" ")) {
+                throw new IllegalArgumentException("[ERROR] 이름에 공백을 포함할 수 없습니다.");
+            }
+            if (name.isEmpty()) {
+                throw new IllegalArgumentException("[ERROR] 이름은 빈 값일 수 없습니다.");
+            }
+        }
+
+        if (new HashSet<>(carNames).size() != carNames.size()) { //위에 import로 HashSet을 가져옴
+            //HashSet 특징: 중복된 값을 허용하지 않음
+            throw new IllegalArgumentException("[ERROR] 중복된 자동차 이름이 있습니다.");
+        }
+
+        RacingGame racingGame = new RacingGame(carNames);
+        int tryCount = InputView.readTryCount();
+
+        OutputView.printResultMessage();
+
+        for (int i = 0; i < tryCount; i++) {
+            racingGame.playRound();
+            OutputView.printRoundResult(racingGame.getCars());
+        }
+
+        List<String> winners = racingGame.getWinners();
+        OutputView.printWinners(winners);
+    }
+}

src/main/java/racingcar/model/Car.java

@@ -0,0 +1,33 @@
+package racingcar.model;
+
+public class Car {
+    private static final int MOVE_THRESHOLD = 4;
+    private static final int MIN_NAME_LENGTH = 1;
+    private static final int MAX_NAME_LENGTH = 5;
+
+    private final String name;
+    private int position=0;
+
+    public Car(String name) {
+        if (name == null || name.isEmpty() || name.length() > 5) {
+            throw new IllegalArgumentException("[ERROR] 이름은 5자 이하만 가능합니다.");
+        }
+        this.name = name;
+    }
+
+    public void move(int num){
+        if (num >= MOVE_THRESHOLD) {
+            position += 1;
+        }
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public int getPosition() {
+        return position;
+    }
+
+
+}

src/main/java/racingcar/model/RacingGame.java

@@ -0,0 +1,52 @@
+package racingcar.model;
+
+import java.util.ArrayList;
+import java.util.List;
+import camp.nextstep.edu.missionutils.Randoms;
+import java.util.Collections;
+
+public class RacingGame {
+    private List<Car> cars;
+
+    public RacingGame(List<String> name) {
+        this.cars = createCars(name);
+    }
+
+    private List<Car> createCars(List<String> names) {
+        List<Car> carList = new ArrayList<>();
+        for (String name : names) {
+            carList.add(new Car(name));
+        }
+        return carList;
+    }
+
+    public void playRound() {
+        for (Car car : cars) {
+            int randomNumber = Randoms.pickNumberInRange(0, 9);
+            car.move(randomNumber);
+        }
+    }
+
+    public List<String> getWinners() {
+        int maxPosition = 0;
+        for (Car car : cars) {
+            if (car.getPosition() > maxPosition) {
+                maxPosition = car.getPosition();
+            }
+        }
+        List<String> winners = new ArrayList<>();
+        for (Car car : cars) {
+            if (car.getPosition() == maxPosition) {
+                winners.add(car.getName());
+            }
+        }
+        return winners;
+    }
+
+    public List<Car> getCars() {
+        return Collections.unmodifiableList(this.cars);
+        //원본주소를 직접 반환하면 외부에서 수정 가능 -> 수정: 원본주소를 수정 불가능한 상태로 바꿔서 반환
+        //Collections: java.util 패키지에 포함된 유틸리티 클래스, 위에서 임포트
+        //.unmodifiableList(): 수정 불가능한 상태로 감싸서 반환
+    }
+}

src/main/java/racingcar/view/InputView.java

@@ -0,0 +1,24 @@
+package racingcar.view;
+
+import camp.nextstep.edu.missionutils.Console;
+
+public class InputView {
+    public static String readCarNames() {
+        System.out.println("경주할 자동차 이름을 입력하세요.(이름은 쉼표(,) 기준으로 구분)");
+        return Console.readLine();
+    }
+
+    public static int readTryCount() {
+        System.out.println("시도할 횟수는 몇 회인가요?");
+        String input = Console.readLine();
+        try {
+            int count = Integer.parseInt(input);
+            if (count < 1) {
+                throw new IllegalArgumentException("[ERROR] 시도 횟수는 1 이상이어야 합니다.");
+            }
+            return count;
+        } catch (NumberFormatException e) {
+            throw new IllegalArgumentException("[ERROR] 시도 횟수는 숫자여야 합니다.");
+        }
+    }
+}

src/main/java/racingcar/view/OutputView.java

@@ -0,0 +1,32 @@
+package racingcar.view;
+
+import racingcar.model.Car;
+
+import java.util.List;
+
+public class OutputView {
+    private static final String SYMBOL = "-";
+
+    public static void printResultMessage() {
+        System.out.println("실행 결과");
+    }
+
+    public static void printRoundResult(List<Car> cars) {
+        for (Car car : cars) {
+            String name = car.getName();
+            String dashes = convertSYMBOL(car.getPosition());
+
+            System.out.println(name + " : " + dashes);
+        }
+        System.out.println();
+    }
+
+    private static String convertSYMBOL(int position) {
+        return SYMBOL.repeat(position);
+    }
+
+    public static void printWinners(List<String> winners) {
+        System.out.println("최종 우승자 : " + String.join(", ", winners));
+    }
+
+}

src/test/java/racingcar/ApplicationTest.java

@@ -8,7 +8,7 @@
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
 
-class ApplicationTest extends NsTest {
+public class ApplicationTest extends NsTest {
     private static final int MOVING_FORWARD = 4;
     private static final int STOP = 3;