feat: add feature set

src/main/kotlin/racingcar/Application.kt

@@ -1,7 +1,6 @@
 package racingcar
 
 import camp.nextstep.edu.missionutils.Console
-import camp.nextstep.edu.missionutils.Randoms
 
 fun main() {
     val cars = inputCars()

src/main/kotlin/racingcar/Car.kt

@@ -0,0 +1,16 @@
+package racingcar
+
+import camp.nextstep.edu.missionutils.Randoms
+
+class Car(val name: String) {
+    var position: Int = 0
+        private set
+
+    fun move() {
+        if (Randoms.pickNumberInRange(0, 9) >= 4) {
+            position++
+        }
+    }
+
+    fun getPositionMarker(): String = "-".repeat(position)
+}

src/main/kotlin/racingcar/RacingGame.kt

@@ -0,0 +1,24 @@
+package racingcar
+
+class RacingGame(private val cars: List<Car>, private val tryCount: Int) {
+
+    fun start() {
+        repeat(tryCount) {
+            cars.forEach { it.move() }
+            printCurrentPositions()
+        }
+    }
+
+    private fun printCurrentPositions() {
+        cars.forEach { car ->
+            println("${car.name} : ${car.getPositionMarker()}")
+        }
+        println()
+    }
+
+    fun getWinners(): String {
+        val maxPosition = cars.maxOf { it.position }
+        return cars.filter { it.position == maxPosition }
+            .joinToString(", ") { it.name }
+    }
+}