From 83178515c5897c5dee52ee02b1b4812bd3636893 Mon Sep 17 00:00:00 2001
From: ujijrujijr <ujijrujijr@mail.ru>
Date: Wed, 2 Oct 2024 22:44:53 +0400
Subject: [PATCH] lab2

---
 lib/main.dart | 103 +++++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 93 insertions(+), 10 deletions(-)

diff --git a/lib/main.dart b/lib/main.dart
index de18257..612665b 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'dart:math';
 
 void main() {
   runApp(const MyApp());
@@ -7,7 +8,7 @@ void main() {
 class MyApp extends StatelessWidget {
   const MyApp({super.key});
 
-    @override
+  @override
   Widget build(BuildContext context) {
     return MaterialApp(
       title: 'Flutter Demo',
@@ -24,8 +25,6 @@ class MyApp extends StatelessWidget {
 class MyHomePage extends StatefulWidget {
   const MyHomePage({super.key, required this.title});
 
-      
-        
   final String title;
 
   @override
@@ -37,20 +36,20 @@ class _MyHomePageState extends State<MyHomePage> {
 
   void _incrementCounter() {
     setState(() {
-                                    _counter++;
+      _counter++;
     });
   }
 
   @override
   Widget build(BuildContext context) {
-                            return Scaffold(
+    return Scaffold(
       appBar: AppBar(
-                                backgroundColor: Theme.of(context).colorScheme.inversePrimary,
-                        title: Text(widget.title),
+        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
+        title: Text(widget.title),
       ),
       body: Center(
-                        child: Column(
-                                                                                                                                            mainAxisAlignment: MainAxisAlignment.center,
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
           children: <Widget>[
             const Text(
               'You have pushed the button this many times:',
@@ -66,6 +65,90 @@ class _MyHomePageState extends State<MyHomePage> {
         onPressed: _incrementCounter,
         tooltip: 'Increment',
         child: const Icon(Icons.add),
-      ),     );
+      ),
+    );
   }
 }
+
+class Game extends Object {
+  final String name;
+  final int price;
+  final GameType type; //жанр игры
+  final String? description;
+
+  @override
+  bool operator ==(Object other) {
+    if (other is Game) {
+      return this.name == other.name;
+    }
+    return false;
+  }
+
+  //стандартный конструктор с именованными параметрами
+  Game(
+      {required this.name,
+      required this.price,
+      required this.type,
+      this.description});
+
+  //именованный конструктор с примером игры
+  Game.exampleLateShift()
+      : name = 'Late Shift',
+        price = 200,
+        type = GameType.FMV,
+        description = null;
+
+  void printInfo() {
+    print('''
+Игра: $name
+Жанр: ${GameTypeNames[type]}
+Цена: $price руб. ''');
+    if (description != null) {
+      print('Описание: $description');
+    }
+  }
+
+//асинхронный метод - иммитация скачивания
+  Future<void> download() async {
+    print('Начало загрузки игры $name');
+    var rand = Random();
+    int time = rand.nextInt(10000) + 100;
+    //асинхронность (Future), анонимная функция (Anonymous function)
+    Future.delayed(
+        Duration(milliseconds: time), () => print("Игра $name загружена"));
+  }
+}
+
+enum GameType { FMV, Shooter, Strategy, Horror }
+
+//Названия жанров на русском
+const Map<GameType, String> GameTypeNames = {
+  GameType.FMV: "FMV",
+  GameType.Shooter: "Шутер",
+  GameType.Strategy: "Стратегия",
+  GameType.Horror: "Хоррор"
+};
+
+void availableTypesRus() => printMapValues(GameTypeNames);
+
+//цикл (loop) + generic (хз, куда ещё их можно)
+void printMapValues<T, U>(Map<T, U> map) {
+  for (var val in map.values) {
+    print(val);
+  }
+}
+
+extension GameTypeRus on GameType {
+  String get rusName {
+    switch(this) {
+      case GameType.FMV:
+        return 'FMV';
+      case GameType.Shooter:
+        return 'Шутер';
+      case GameType.Strategy:
+        return 'Стратегия';
+      case GameType.Horror:
+        return 'Хоррор';
+    }
+  }
+}
\ No newline at end of file