Kotlin-5

src/main/kotlin/ru/otus/cars/Car.kt

@@ -14,6 +14,11 @@ interface Car : CarInput {
      */
     val color: String
 
+    /**
+     * Горловина бака
+     */
+    val mouth: TankMouth
+
     /**
      * Следит за машиной
      */

src/main/kotlin/ru/otus/cars/CarInput.kt

@@ -13,4 +13,6 @@ interface CarInput {
      * Руль влево на [degrees] градусов
      */
     fun wheelToLeft(degrees: Int)
+
+    fun receiveFuel(liters: Int)
 }

src/main/kotlin/ru/otus/cars/CarOutput.kt

@@ -8,4 +8,9 @@ interface CarOutput {
      * Скажи текущую скорость
      */
     fun getCurrentSpeed(): Int
+
+    /**
+     * Скажи запас бензина
+     */
+    fun getFuelContents(): Int
 }

src/main/kotlin/ru/otus/cars/GasStation.kt

@@ -0,0 +1,20 @@
+package ru.otus.cars
+
+import ru.otus.cars.Vaz2107.LpgMouth
+import ru.otus.cars.Vaz2108.PetrolMouth
+
+class GasStation {
+    fun fuelCar (car: Car, liters: Int) {
+        when (car.mouth) {
+            is LpgMouth -> {
+                car.receiveFuel(liters)
+                println("Залито $liters литров(а) газа.")
+            }
+            is PetrolMouth -> {
+                car.receiveFuel(liters)
+                println("Залито $liters литров(а) бензина.")
+            }
+        }
+        println("Уровень топлива: ${car.carOutput.getFuelContents()} литров(а).")
+    }
+}

src/main/kotlin/ru/otus/cars/Tank.kt

@@ -0,0 +1,23 @@
+package ru.otus.cars
+
+/**
+ * Топливный бак
+ */
+interface Tank {
+    /**
+     * Горловина бака
+     */
+    val mouth: TankMouth
+
+    val fuelLevel: Int
+
+    /**
+     * Следит за уровнем топлива
+     */
+    fun getContents(): Int
+
+    /**
+     * Заправить бензин
+     */
+    fun receiveFuel(liters: Int)
+}

src/main/kotlin/ru/otus/cars/TankMouth.kt

@@ -0,0 +1,20 @@
+package ru.otus.cars
+
+abstract class TankMouth {
+
+    private var isopen : Boolean = true
+
+    /**
+     * Открывает лючок бензобака
+     */
+    fun open() {
+        isopen = true
+    }
+
+    /**
+     * Закрывает лючок бензобака
+     */
+    fun close() {
+        isopen = false
+    }
+}

src/main/kotlin/ru/otus/cars/Taz.kt

@@ -12,6 +12,9 @@ object Taz: Car {
      */
     override val color: String = "Ржавый"
 
+    override val mouth: TankMouth
+        get() = throw NotImplementedError("Сюда соляру надо")
+
     /**
      * Следит за машиной
      */
@@ -36,4 +39,8 @@ object Taz: Car {
     override fun wheelToLeft(degrees: Int) {
         throw NotImplementedError("Руля нет")
     }
+
+    override fun receiveFuel(liters: Int) {
+        throw NotImplementedError("Саня, бачок потик!!!")
+    }
 }

src/main/kotlin/ru/otus/cars/Vaz2107.kt

@@ -20,6 +20,7 @@ class Vaz2107 private constructor(color: String) : VazPlatform(color) {
         override fun build(plates: Car.Plates): Vaz2107 = Vaz2107("Зеленый").apply {
             this.engine = getRandomEngine()
             this.plates = plates
+            this.mouth = LpgMouth()
         }
 
         /**
@@ -50,13 +51,21 @@ class Vaz2107 private constructor(color: String) : VazPlatform(color) {
 
     private var currentSpeed: Int = 0 // Скока жмёт
 
+    private var currentFuelLevel = 0
+
+    override fun receiveFuel(liters: Int) {
+        this.LpgMouth().fuelLpg(liters)
+    }
+
     /**
      * Доступно сборщику
      * @see [build]
      */
     override lateinit var plates: Car.Plates
         private set
 
+    override lateinit var mouth: TankMouth
+
     // Выводим состояние машины
     override fun toString(): String {
         return "Vaz2107(plates=$plates, wheelAngle=$wheelAngle, currentSpeed=$currentSpeed)"
@@ -74,5 +83,17 @@ class Vaz2107 private constructor(color: String) : VazPlatform(color) {
         override fun getCurrentSpeed(): Int {
             return [email protected]
         }
+
+        override fun getFuelContents(): Int {
+            return [email protected]
+        }
+    }
+
+    inner class LpgMouth : TankMouth() {
+        fun fuelLpg(liters: Int) {
+            open()
+            [email protected] += liters
+            close()
+        }
     }
 }

src/main/kotlin/ru/otus/cars/Vaz2108.kt

@@ -21,6 +21,8 @@ class Vaz2108 private constructor(color: String) : VazPlatform(color) {
         override fun build(plates: Car.Plates): Vaz2108 = Vaz2108("Красный").apply {
             this.engine = getRandomEngine()
             this.plates = plates
+            this.mouth = PetrolMouth()
+
         }
 
         fun alignWheels(vaz2108: Vaz2108) {
@@ -54,13 +56,21 @@ class Vaz2108 private constructor(color: String) : VazPlatform(color) {
 
     private var currentSpeed: Int = 0 // Скока жмёт
 
+    private var currentFuelLevel = 0
+
+    override fun receiveFuel(liters: Int) {
+        this.PetrolMouth().fuelPetrol(liters)
+    }
+
     /**
      * Доступно сборщику
      * @see [build]
      */
     override lateinit var plates: Car.Plates
         private set
 
+    override lateinit var mouth: TankMouth
+
     // Выводим состояние машины
     override fun toString(): String {
         return "Vaz2108(plates=$plates, wheelAngle=$wheelAngle, currentSpeed=$currentSpeed)"
@@ -78,5 +88,17 @@ class Vaz2108 private constructor(color: String) : VazPlatform(color) {
         override fun getCurrentSpeed(): Int {
             return [email protected]
         }
+
+        override fun getFuelContents(): Int {
+            return [email protected]
+        }
+    }
+
+    inner class PetrolMouth : TankMouth() {
+        fun fuelPetrol(liters: Int) {
+            open()
+            [email protected] += liters
+            close()
+        }
     }
 }

src/main/kotlin/ru/otus/cars/VazPlatform.kt

@@ -14,6 +14,8 @@ abstract class VazPlatform(override val color: String) : Car {
 
     // Абстрактное свойство двигателя
     abstract val engine: VazEngine
+
+    abstract override val mouth: TankMouth
 }
 
 // Перечисление двигателей ВАЗ