[자동차 경주] 김유정 미션 제출합니다.

docs/README.md

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+# 구현할 기능
+1. 경주할 자동차 이름을 입력받는다
+2. 경주할 숫자를 입력받는다
+3. 실행 결과를 출력하는 기능
+    - 각 차들은 0~9의 랜덤 값이 4 이상일 경우에만 전진
+4. 게임 종료 후 우승자 출력 기능

src/main/kotlin/racingcar/Application.kt

@@ -1,5 +1,7 @@
 package racingcar
 
+import racingcar.controller.GameController
+
 fun main() {
-    // TODO: 프로그램 구현
-}
+	GameController().start()
+}

src/main/kotlin/racingcar/controller/GameController.kt

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+package racingcar.controller
+
+import camp.nextstep.edu.missionutils.Console
+import racingcar.global.InformationMessage
+import racingcar.service.CarService
+import racingcar.service.RaceService
+
+class GameController {
+	var carService = CarService()
+	var raceService = RaceService()
+
+	fun start() {
+		createCarList()
+		createRaceNumber()
+		println()
+		playRace()
+		gameResult()
+	}
+
+	fun createCarList() {
+		println(InformationMessage.INPUT_CARS_NAME.message)
+		val input = Console.readLine().split(",")
+		carService.createCarList(input)
+	}
+
+	fun createRaceNumber() {
+		println(InformationMessage.ATTEMPT_NUMBER.message)
+		val input = Console.readLine()
+		raceService.createRaceNumber(input)
+	}
+
+	fun playRace() {
+		println(InformationMessage.EXECUTION_RESULT.message)
+		raceService.playRace()
+	}
+	fun gameResult() {
+		val winner = carService.getWinner()
+		println(InformationMessage.FINAL_WINNER.message + winner)
+	}
+}

src/main/kotlin/racingcar/exception/ErrorCode.kt

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+package racingcar.exception
+
+enum class ErrorCode(val message: String) {
+	CHARACTERS_NUMBER_EXCEEDED("5글자 이하의 이름만 가능합니다."),
+	NOT_NUMBER("숫자만 입력해 주세요.")
+}

src/main/kotlin/racingcar/exception/InputException.kt

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+package racingcar.exception
+
+class InputException {
+	fun validateCarName(cars: List<String>) {
+		for(car in cars) {
+			require(car.length <= 5) {ErrorCode.CHARACTERS_NUMBER_EXCEEDED.message}
+		}
+	}
+
+	fun validateAttemptNumber(number: String): Int {
+		try {
+			return number.toInt()
+		} catch (e: Exception) {
+			throw IllegalArgumentException(ErrorCode.NOT_NUMBER.message)
+		}
+	}
+}

src/main/kotlin/racingcar/global/InformationMessage.kt

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+package racingcar.global
+
+enum class InformationMessage(val message: String) {
+	INPUT_CARS_NAME("경주할 자동차 이름을 입력하세요.(이름은 쉼표(,) 기준으로 구분)"),
+	ATTEMPT_NUMBER("시도할 횟수는 몇 회인가요?"),
+	EXECUTION_RESULT("실행 결과"),
+	FINAL_WINNER("최종 우승자 : ")
+}

src/main/kotlin/racingcar/model/Car.kt

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+package racingcar.model
+
+data class Car(
+	val name: String,
+	var location: Int
+) {
+	fun move() {
+		this.location++
+	}
+}

src/main/kotlin/racingcar/service/CarService.kt

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+package racingcar.service
+
+import camp.nextstep.edu.missionutils.Randoms
+import racingcar.exception.InputException
+import racingcar.model.Car
+
+class CarService {
+	companion object {
+		lateinit var cars: List<Car>
+	}
+
+	fun createCarList(carNames: List<String>) {
+		InputException().validateCarName(carNames)
+		Companion.cars = carNames.map { Car(it, 0) }
+	}
+
+	fun getCarList(): List<Car> {
+		return Companion.cars
+	}
+
+	fun moveCar() {
+		Companion.cars.forEach { car ->
+			val random = Randoms.pickNumberInRange(0, 9)
+			if(random >= 4) car.move()
+		}
+	}
+
+	fun getWinner(): String {
+		val largestNumber = Companion.cars.maxOf(Car::location)
+		return Companion.cars.filter { it.location == largestNumber }
+					.joinToString(separator = ", ") { car -> car.name }
+	}
+}

src/main/kotlin/racingcar/service/RaceService.kt

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+package racingcar.service
+
+import racingcar.exception.InputException
+import racingcar.model.Car
+
+class RaceService {
+	val carService = CarService()
+
+	var raceNumber: Int = 0
+	val locationExpression = "-"
+
+	fun createRaceNumber(raceNumber: String) {
+		this.raceNumber = InputException().validateAttemptNumber(raceNumber)
+	}
+
+	fun playRace() {
+		for(i in 0..<raceNumber) {
+			carService.moveCar()
+			val cars = carService.getCarList()
+			cars.forEach(fun(car: Car) {
+				println(String.format("%s : %s", car.name, locationExpression.repeat(car.location)))
+			})
+			println()
+		}
+	}
+}