lib:simulations:Merge_sort :Merge Sort implemented #174 (#185)

* added: mergesort

* added merge sort

* mergesort update

lib/src/custom_items/simulation_card.dart

@@ -38,7 +38,10 @@ class _SimulationCardState extends State<SimulationCard> {
   Widget build(BuildContext context) {
     final appState = Provider.of<Simulations>(context);
     return Container(
-      width: MediaQuery.of(context).size.height > MediaQuery.of(context).size.width ? ScreenUtil().setWidth(200) : 200,
+      width:
+          MediaQuery.of(context).size.height > MediaQuery.of(context).size.width
+              ? ScreenUtil().setWidth(200)
+              : 200,
       child: GestureDetector(
         onTap: () {
           Navigator.push(

lib/src/data/simulations.dart

@@ -4,6 +4,7 @@ import 'package:simulate/src/data/themedata.dart';
 import 'package:simulate/src/simulations/bubble_sort.dart';
 import 'package:simulate/src/simulations/epicycloid.dart';
 import 'package:simulate/src/simulations/fourier_series.dart';
+import 'package:simulate/src/simulations/merge_sort.dart';
 import 'package:simulate/src/simulations/rose_pattern.dart';
 import 'package:simulate/src/simulations/toothpick.dart';
 import 'package:simulate/src/simulations/insertion_sort.dart';
@@ -13,8 +14,8 @@ import 'package:simulate/src/simulations/epicycloid_curve.dart';
 import 'package:simulate/src/simulations/maurer_rose.dart';
 
 class Simulations with ChangeNotifier {
-  static var _favorites = [-1, -1, -1, -1, -1, -1, -1, -1, -1];
-  final _algorithm = [0, 1, 2];
+  static var _favorites = [-1, -1, -1, -1, -1, -1, -1, -1, -1, -1];
+  final _algorithm = [0, 1, 2, 9];
   final _mathematics = [3, 4, 5, 6, 7, 8];
   final _physics = [];
   final _chemistry = [];
@@ -29,6 +30,7 @@ class Simulations with ChangeNotifier {
     6: "epicycloid curve pattern mathematics animation pencil lines ",
     7: "epicycloid curve pattern mathematics animation ",
     8: "maurer rose pattern mathematics animation",
+    9: "merge sort algorithm sorting bars ",
   };
 
   Simulations() {
@@ -141,6 +143,16 @@ class Simulations with ChangeNotifier {
         infoLink: 'https://en.wikipedia.org/wiki/Maurer_rose',
         fav: _favorites[8],
       ),
+      SimulationCard(
+        id: 9,
+        simulationName: 'Merge Sort',
+        image: theme.darkTheme
+            ? 'assets/simulations/MergeSortDark.png'
+            : 'assets/simulations/MergeSortLight.png',
+        direct: MergeSort(),
+        infoLink: 'https://en.wikipedia.org/wiki/Insertion_sort',
+        fav: _favorites[9],
+      ),
     ];
   }
 

lib/src/simulations/langton_ant.dart

@@ -153,8 +153,8 @@ class _LangtonAntState extends State<LangtonAnt> {
           size: 24,
         ),
         onPressed: () => setState(() {
-              shouldWork = !shouldWork;
-            }),
+          shouldWork = !shouldWork;
+        }),
       ),
       floatingActionButtonLocation: FloatingActionButtonLocation.centerFloat,
     );