1 - master - 123321/qwery

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123321
create 1
27 окт 2024, 11:59
27 окт 2024, 11:59784b1ff
import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Купить Корабль',
      home: ShipPurchaseScreen(),
    );
  }
}

class Ship {
  final double capacity;
  final double horsepower;
  final double price;

  Ship(this.capacity, this.horsepower, this.price);
}

class ShipPurchaseScreen extends StatefulWidget {
  @override
  _ShipPurchaseScreenState createState() => _ShipPurchaseScreenState();
}

class _ShipPurchaseScreenState extends State<ShipPurchaseScreen> {
  final TextEditingController _balanceController = TextEditingController();
  final TextEditingController _capacityController = TextEditingController();
  final TextEditingController _horsepowerController = TextEditingController();

  double _balance = 0.0;
  double _shipPrice = 0.0;
  List<Ship> _purchasedShips = [];

  void _calculateShipPrice() {
    final double capacity = double.tryParse(_capacityController.text) ?? 0.0;
    final double horsepower = double.tryParse(_horsepowerController.text) ?? 0.0;


    _shipPrice = (capacity * 100000) + (horsepower * 50000);
  }

  void _purchaseShip() {
    _calculateShipPrice();
    if (_balance >= _shipPrice) {
      setState(() {
        _balance -= _shipPrice;
        _purchasedShips.add(Ship(
          double.tryParse(_capacityController.text) ?? 0.0,
          double.tryParse(_horsepowerController.text) ?? 0.0,
          _shipPrice,
        ));
        _capacityController.clear();
        _horsepowerController.clear();
      });
      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(content: Text('Корабль куплен за \$${_shipPrice.toStringAsFixed(2)}!')),
      );
    } else {
      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(content: Text('Недостаточно средств!')),
      );
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Купи Корабль'),
      ),
      body: Padding(
        padding: const EdgeInsets.all(16.0),
        child: Column(
          children: [
            TextField(
              controller: _balanceController,
              decoration: InputDecoration(labelText: 'Введите ваш баланс'),
              keyboardType: TextInputType.number,
              onChanged: (value) {
                _balance = double.tryParse(value) ?? 0.0;
              },
            ),
            SizedBox(height: 20),
            TextField(
              controller: _capacityController,
              decoration: InputDecoration(labelText: 'Вместимость корабля'),
              keyboardType: TextInputType.number,
            ),
            TextField(
              controller: _horsepowerController,
              decoration: InputDecoration(labelText: 'Лошадиные силы'),
              keyboardType: TextInputType.number,
            ),
            SizedBox(height: 20),
            ElevatedButton(
              onPressed: _purchaseShip,
              child: Text('Купить Корабль'),
            ),
            SizedBox(height: 20),
            Text('Ваш баланс: \$${_balance.toStringAsFixed(2)}'),
            SizedBox(height: 20),
            Text('Купленные корабли:'),
            Expanded(
              child: ListView.builder(
                itemCount: _purchasedShips.length,
                itemBuilder: (context, index) {
                  final ship = _purchasedShips[index];
                  return ListTile(
                    title: Text('Корабль ${index + 1}'),
                    subtitle: Text('Вместимость: ${ship.capacity}, ЛС: ${ship.horsepower}, Цена: \$${ship.price.toStringAsFixed(2)}'),
                  );
                },
              ),
            ),
          ],
        ),
      ),
    );
  }
}