Han-Crew · limwoobin · Apr 23, 2021 · Apr 24, 2021 · Apr 24, 2021 · Apr 25, 2021
diff --git a/src/main/java/Main.java b/src/main/java/Main.java
@@ -1,3 +1,5 @@
+import java.util.Random;
+
 public class Main {
     public static void main(String[] args) {
 

diff --git a/src/main/java/racingcar/Car.java b/src/main/java/racingcar/Car.java
diff --git a/src/main/java/racingcar/CarList.java b/src/main/java/racingcar/CarList.java
diff --git a/src/main/java/racingcar/Game.java b/src/main/java/racingcar/Game.java
diff --git a/src/main/java/racingcar/RacingCarApplication.java b/src/main/java/racingcar/RacingCarApplication.java
diff --git a/src/main/java/racingcar/javajigi/domain/Car.java b/src/main/java/racingcar/javajigi/domain/Car.java
@@ -0,0 +1,58 @@
+package racingcar.javajigi.domain;
+
+import java.util.Objects;
+
+public class Car {
+    public static final int MAX_BOUND = 10;
+    public static final int FORWARD_NUM = 4;
+    private final Name name;
+    private Position position = new Position();
+
+    public Car(final String name) {
+        this(name , 0);
+    }
+
+    public Car(final String name , int position) {
+        this.name = new Name(name);
+        this.position = new Position(position);
+    }
+
+    public Position getPosition() {
+        return position;
+    }
+
+    public void move(RandomNumber randomNumber) {
+        if (randomNumber.isMovable()) {
+            position.move();
+        }
+    }
+
+    public boolean isWinner(int maxPosition) {
+        return position.samePosition(maxPosition);
+    }
+
+    public int max(int maxPosition) {
+        if (position.isGreaterThan(maxPosition)) {
+            return position.getPosition();
+        }
+
+        return maxPosition;
+    }
+
+    public Name getName() {
+        return this.name;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Car car = (Car) o;
+        return Objects.equals(name, car.name) && Objects.equals(position, car.position);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(name, position);
+    }
+}
diff --git a/src/main/java/racingcar/javajigi/domain/Cars.java b/src/main/java/racingcar/javajigi/domain/Cars.java
@@ -0,0 +1,50 @@
+package racingcar.javajigi.domain;
+
+import racingcar.javajigi.utils.RandomUtil;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Random;
+
+public class Cars {
+    private final List<Car> cars;
+    private Random random = new Random();
+    public Cars(List<Car> cars) {
+        this.cars = Collections.unmodifiableList(cars);
+    }
+
+    public List<Car> getCars() {
+        return cars;
+    }
+
+    public void moveAll() {
+        for (Car car : cars) {
+            RandomNumber randomNumber = new RandomNumber(RandomUtil.getRandomZeroToNine());
+            car.move(randomNumber);
+        }
+    }
+
+    public Winners findWinner() {
+        return filterWinners(getMaxPosition());
+    }
+
+    public Winners filterWinners(int maxPosition) {
+        Winners winners = new Winners();
+        for (Car car : cars) {
+            if (car.isWinner(maxPosition)) {
+                winners.add(car);
+            }
+        }
+
+        return winners;
+    }
+
+    public int getMaxPosition() {
+        int maxPosition = 0;
+        for (Car car : cars) {
+            maxPosition = car.max(maxPosition);
+        }
+
+        return maxPosition;
+    }
+}
diff --git a/src/main/java/racingcar/javajigi/domain/Name.java b/src/main/java/racingcar/javajigi/domain/Name.java
@@ -0,0 +1,36 @@
+package racingcar.javajigi.domain;
+
+import java.util.Objects;
+
+public class Name {
+    public static final int NAME_LENGTH = 5;
+    private final String name;
+
+    public Name(String name) {
+        if ("".equals(name)) {
+            throw new IllegalArgumentException("자동차는 이름을 갖고 있어야 합니다.");
+        }
+        if (name.length() > NAME_LENGTH) {
+            throw new IllegalArgumentException("자동차 이름의 길이는 5이하여야 합니다.");
+        }
+        this.name = name;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Name name1 = (Name) o;
+        return Objects.equals(name, name1.name);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(name);
+    }
+
+    @Override
+    public String toString() {
+        return name;
+    }
+}