From e8ae9d8cda18882d3fd07031879303d65504456b Mon Sep 17 00:00:00 2001
From: Nathan Anderson <n8r@tuta.io>
Date: Thu, 2 May 2024 15:40:22 -0600
Subject: [PATCH] monke
---
lib/main.dart | 76 ++++++++++++++++++++++++++++++++++++++++++++++-----
1 file changed, 69 insertions(+), 7 deletions(-)
diff --git a/lib/main.dart b/lib/main.dart
index 98245b5..4ed78f9 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -20,6 +20,49 @@ class MyApp extends StatelessWidget {
}
}
+abstract class ListStrategy<T> {
+ List<T> compose(List<T> items);
+}
+
+class Monkey {
+ Monkey({required this.name, required this.power});
+ final String name;
+ final int power;
+
+ @override
+ String toString() => '$name - Power: $power';
+}
+
+class GreatestMonkeyStrategy implements ListStrategy<Monkey> {
+ @override
+ List<Monkey> compose(List<Monkey> items) {
+ return [
+ items.fold<Monkey>(
+ Monkey(name: '', power: 0), (aMonkey, bMonkey) => aMonkey.power > bMonkey.power ? aMonkey : bMonkey)
+ ];
+ }
+}
+
+class WeakMonkeysStrategy implements ListStrategy<Monkey> {
+ @override
+ List<Monkey> compose(List<Monkey> items) {
+ return items
+ .where(
+ (element) => element.power <= 200,
+ )
+ .toList();
+ }
+}
+
+List<Monkey> monkeys = [
+ Monkey(name: 'Mortimer', power: 25),
+ Monkey(name: 'ApeMan', power: 354),
+ Monkey(name: 'Spider', power: 65),
+ Monkey(name: 'DK', power: 500),
+ Monkey(name: 'Tim', power: 120),
+ Monkey(name: 'Kong', power: 25400),
+];
+
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key});
@@ -28,6 +71,16 @@ class MyHomePage extends StatefulWidget {
}
class _MyHomePageState extends State<MyHomePage> {
+ ListStrategy listStrat = WeakMonkeysStrategy();
+
+ void swapStrategies() {
+ if (listStrat.runtimeType == WeakMonkeysStrategy) {
+ setState(() => listStrat = GreatestMonkeyStrategy());
+ return;
+ }
+ setState(() => listStrat = WeakMonkeysStrategy());
+ }
+
@override
Widget build(BuildContext context) {
return Scaffold(
@@ -39,13 +92,22 @@ class _MyHomePageState extends State<MyHomePage> {
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
- const Text(
- 'You have pushed the button this many times:',
- ),
- Text(
- 'some text',
- style: Theme.of(context).textTheme.headlineMedium,
- ),
+ const Text('All monkeys:'),
+ ...monkeys
+ .map(
+ (e) => Text(e.toString()),
+ )
+ .toList(),
+ const SizedBox(height: 50),
+ Text(listStrat.runtimeType.toString()),
+ ...listStrat
+ .compose(monkeys)
+ .map(
+ (e) => Text(e.toString()),
+ )
+ .toList(),
+ const SizedBox(height: 100),
+ ElevatedButton(onPressed: () => swapStrategies(), child: const Text('Change Strats')),
],
),
),