Version 0.2.0

* Methods for scheduling new events have been added to the EventContext. (#6)

* Class for simulation result. Tracks were added to the result and no longer as a listener.

* Formatting.

* Using a counter to prioritize between microtask and delayed.#8 (#9)

* Removing nullable from simulation result. #2

* Add support for accumulating simulation results (#10)

* Removing unnecessary import. #2

* Adding num and counter properties. #4

* Removing unnecessary import

* Removing unnecessary imports.

* Renaming EventContext to SimContext. #2

* Allow creating new resources during simulation. #2

* Removing SimResult interface. #2

* Add acquire and release resource methods

* Renaming methods. #11

* Simplifying the API. Event receiving SimDart instance.

* Adding acquire and release methods for resources. #11

* Removing unused import.

* Fixing unrecovered events after waiting for resource. #11

* Fixing async methods. #11

* Updating README. #11

* Updating CHANGELOG. #11

* Formatting. #11

* Fixing hidden member name. #11

Author: caduandrade

CHANGELOG.md

@@ -1,3 +1,10 @@
+## 0.2.0
+
+* Setting to determine how often `Future.delayed` is used instead of `Future.microtask` during event execution to allow GUI refresh.
+* Adding numeric properties and counter.
+* Allow creating new resources during simulation.
+* Methods for acquiring and releasing resources within events.
+
 ## 0.1.0
 
 * Initial release

README.md

@@ -1,6 +1,5 @@
 [![](https://img.shields.io/pub/v/simdart.svg)](https://pub.dev/packages/simdart)
 [![](https://img.shields.io/badge/%F0%9F%91%8D%20and%20%E2%AD%90-are%20free-yellow)](#)
-[![](https://img.shields.io/badge/Under%20Development-blue)](#)
 
 ![](https://simdart.github.io/simdart-assets/simdart-text-128h.png)
 
@@ -80,36 +79,42 @@ A collection of different interval types used to control event timing in simulat
 import 'package:simdart/simdart.dart';
 
 void main() async {
-  final SimDart sim = SimDart(onTrack: (track) => print(track));
+  final SimDart sim = SimDart();
 
   sim.process(event: _a, name: 'A');
   sim.process(event: _b, start: 5, name: 'B');
 
   await sim.run();
 }
 
-void _a(EventContext context) async {
+Future<void> _a(SimContext context) async {
+  print('[${context.now}][${context.eventName}] start');
   await context.wait(10);
-  context.sim.process(event: _c, delay: 1, name: 'C');
+  context.process(event: _c, delay: 1, name: 'C');
+  print('[${context.now}][${context.eventName}] end');
 }
 
-void _b(EventContext context) async {
+Future<void> _b(SimContext context) async {
+  print('[${context.now}][${context.eventName}] start');
   await context.wait(1);
+  print('[${context.now}][${context.eventName}] end');
 }
 
-void _c(EventContext context) async {
+Future<void> _c(SimContext context) async {
+  print('[${context.now}][${context.eventName}] start');
   await context.wait(10);
+  print('[${context.now}][${context.eventName}] end');
 }
 ```
 
 Output:
 ```
-[0][A][executed]
-[5][B][executed]
-[6][B][resumed]
-[10][A][resumed]
-[11][C][executed]
-[21][C][resumed]
+[0][A] start
+[5][B] start
+[6][B] end
+[10][A] end
+[11][C] start
+[21][C] end
 ```
 
 ### Resource capacity
@@ -118,35 +123,35 @@ Output:
 import 'package:simdart/simdart.dart';
 
 void main() async {
-  final SimDart sim = SimDart(onTrack: (track) => print(track));
+  final SimDart sim = SimDart();
 
-  sim.resources.limited(id: 'resource', capacity: 2);
+  sim.resources.limited(id: 'resource', capacity: 1);
 
-  sim.process(event: _a, name: 'A1', resourceId: 'resource');
-  sim.process(event: _a, name: 'A2', start: 1, resourceId: 'resource');
-  sim.process(event: _a, name: 'A3', start: 2, resourceId: 'resource');
-  sim.process(event: _b, name: 'B', start: 3);
+  sim.process(event: _eventResource, name: 'A');
+  sim.process(event: _eventResource, name: 'B');
 
   await sim.run();
 }
 
-void _a(EventContext context) async {
+Future<void> _eventResource(SimContext context) async {
+  print('[${context.now}][${context.eventName}] acquiring resource...');
+  await context.resources.acquire('resource');
+  print('[${context.now}][${context.eventName}] resource acquired');
   await context.wait(10);
+  print('[${context.now}][${context.eventName}] releasing resource...');
+  context.resources.release('resource');
 }
 
-void _b(EventContext context) async {}
 ```
 
 Output:
 ```
-[0][A1][executed]
-[1][A2][executed]
-[2][A3][rejected]
-[3][B][executed]
-[10][A1][resumed]
-[10][A3][executed]
-[11][A2][resumed]
-[20][A3][resumed]
+[0][A] acquiring resource...
+[0][A] resource acquired
+[0][B] acquiring resource...
+[10][A] releasing resource...
+[10][B] resource acquired
+[20][B] releasing resource...
 ```
 
 ### Repeating process
@@ -155,23 +160,25 @@ Output:
 import 'package:simdart/simdart.dart';
 
 void main() async {
-  final SimDart sim = SimDart(onTrack: (track) => print(track));
+  final SimDart sim = SimDart();
 
   sim.repeatProcess(
           event: _a,
           start: 1,
-          name: 'A',
+          name: (start) => 'A$start',
           interval: Interval.fixed(fixedInterval: 2, untilTime: 5));
 
   await sim.run();
 }
 
-void _a(EventContext context) async {}
+Future<void> _a(SimContext context) async {
+  print('[${context.now}][${context.eventName}]');
+}
 ```
 
 Output:
 ```
-[1][A][executed]
-[3][A][executed]
-[5][A][executed]
+[1][A1]
+[3][A3]
+[5][A5]
 ```

example/example.dart

@@ -1,14 +1,20 @@
 import 'package:simdart/simdart.dart';
 
 void main() async {
-  final SimDart sim = SimDart(onTrack: (track) => print(track));
+  final SimDart sim = SimDart(includeTracks: true);
 
-  sim.process(event: _a, name: 'A');
+  sim.process(event: _eventA, name: 'A');
 
-  await sim.run(until: 10);
+  SimResult result = await sim.run();
+
+  result.tracks?.forEach((track) => print(track));
+  print('startTime: ${result.startTime}');
+  print('duration: ${result.duration}');
 }
 
-void _a(EventContext context) async {
+Future<void> _eventA(SimContext context) async {
   await context.wait(2);
-  context.sim.process(event: _a, delay: 2, name: 'A');
+  context.process(event: _eventB, delay: 2, name: 'B');
 }
+
+Future<void> _eventB(SimContext context) async {}

lib/simdart.dart

@@ -1,8 +1,13 @@
-export 'src/start_time_handling.dart';
-export 'src/simdart.dart' hide SimDartHelper;
 export 'src/event.dart';
-export 'src/simulation_track.dart';
 export 'src/interval.dart';
 export 'src/observable.dart';
-export 'src/resource_configurator.dart' hide ResourcesConfiguratorHelper;
-export 'src/execution_priority.dart';
+export 'src/resources_context.dart';
+export 'src/resources.dart';
+export 'src/simdart.dart' hide SimDartHelper;
+export 'src/simulation_track.dart';
+export 'src/start_time_handling.dart';
+export 'src/sim_result.dart';
+export 'src/sim_num.dart';
+export 'src/sim_property.dart';
+export 'src/sim_counter.dart';
+export 'src/sim_context.dart';

lib/src/event.dart

@@ -1,26 +1,6 @@
-import 'dart:async';
-
-import 'package:simdart/src/simdart.dart';
+import 'package:simdart/src/sim_context.dart';
 
 /// The event to be executed.
 ///
-/// A function that represents an event in the simulation. It receives an
-/// [EventContext] that provides data about the event's execution state and context.
-typedef Event = void Function(EventContext context);
-
-/// Represents the context of an event in the simulation.
-///
-/// Encapsulates the information and state of an event being executed
-/// within the simulation.
-mixin EventContext {
-  /// The simulation instance managing this event.
-  SimDart get sim;
-
-  /// Pauses the execution of the event for the specified [delay] in simulation time.
-  ///
-  /// The event is re-added to the simulation's event queue and will resume after
-  /// the specified delay has passed.
-  ///
-  /// Throws an [ArgumentError] if the delay is negative.
-  Future<void> wait(int delay);
-}
+/// A function that represents an event in the simulation.
+typedef Event = Future<void> Function(SimContext context);

lib/src/execution_priority.dart

@@ -0,0 +1,15 @@
+import 'package:meta/meta.dart';
+import 'package:simdart/src/internal/time_action.dart';
+
+@internal
+class CompleterAction extends TimeAction {
+  CompleterAction(
+      {required super.start, required this.complete, required super.order});
+
+  final Function complete;
+
+  @override
+  void execute() {
+    complete.call();
+  }
+}