cellular-automata/lib/service/engine_service.dart

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import 'package:rules_of_living/src/Engine.dart';
import 'package:rules_of_living/src/Simulation.dart';
class EngineService {
Engine _uncachedEngineAccess;
EngineService() {
simSpeed = 5;
}
Engine get engine => _uncachedEngineAccess ?? _setCachedAndReturn(Engine());
void set engine(Engine newEngine) {
_uncachedEngineAccess = newEngine;
}
Engine _setCachedAndReturn(Engine newEngine) {
engine = newEngine;
return newEngine;
}
void run() {
engine.running = true;
}
void stop() {
engine.running = false;
}
void toggleRunning() {
engine.running = !engine.running;
}
void step() {
engine.step();
}
/// Simulation Speed
///
/// Sets the number of updates the simulation takes per second. Can range from
/// 1 to arbitrarily high numbers (though setting it too high can potentially
/// make the app brittle).
int get simSpeed => engine.stepsPerSecond;
void set simSpeed(int val) => engine.stepsPerSecond = val;
bool get isRunning => engine.running;
void set simulation(Simulation value) => engine.simulation = value;
}