public GameSnapshot() {
EntityIdGenerator = new UniqueIntGenerator();
GlobalEntity = new ContentEntity(EntityIdGenerator.Next(), "Global Entity");
ActiveEntities = new List<IEntity>();
AddedEntities = new List<IEntity>();
RemovedEntities = new List<IEntity>();
_systems = new SystemSerializationContainer();
}
public GameEngine(string snapshotJson, string templateJson) {
_templateJson = templateJson;
// Create our own little island of references with its own set of templates
GameSnapshotRestorer restorer = GameSnapshotRestorer.Restore(
snapshotJson, templateJson, Maybe.Just(this));
GameSnapshot snapshot = restorer.GameSnapshot;
EntityIdGenerator = snapshot.EntityIdGenerator;
_systems = snapshot.Systems;
_entityIndex = new EntityIndex();
// TODO: ensure that when correctly restore UpdateNumber
//UpdateNumber = updateNumber;
_globalEntity = (RuntimeEntity)snapshot.GlobalEntity;
EventNotifier.Submit(EntityAddedEvent.Create(_globalEntity));
foreach (var entity in snapshot.AddedEntities) {
AddEntity((RuntimeEntity)entity);
}
foreach (var entity in snapshot.ActiveEntities) {
RuntimeEntity runtimeEntity = (RuntimeEntity)entity;
// add the entity
InternalAddEntity(runtimeEntity);
// TODO: verify that if the modification notifier is already triggered, we can
// ignore this
//if (((ContentEntity)entity).HasModification) {
// runtimeEntity.ModificationNotifier.Notify();
//}
// done via InternalAddEntity
//if (deserializedEntity.HasStateChange) {
// deserializedEntity.Entity.DataStateChangeNotifier.Notify();
//}
}
foreach (var entity in snapshot.RemovedEntities) {
RuntimeEntity runtimeEntity = (RuntimeEntity)entity;
// add the entity
InternalAddEntity(runtimeEntity);
// TODO: verify that if the modification notifier is already triggered, we can
// ignore this
//if (((ContentEntity)entity).HasModification) {
// runtimeEntity.ModificationNotifier.Notify();
//}
// done via InternalAddEntity
//if (deserializedEntity.HasStateChange) {
// deserializedEntity.Entity.DataStateChangeNotifier.Notify();
//}
RemoveEntity(runtimeEntity);
}
TemplateIndex templateIndex = new TemplateIndex(restorer.Templates.Templates);
_executionGroups = new List<ExecutionGroup>();
var executionGroups = SystemExecutionGroup.GetExecutionGroups(snapshot.Systems);
foreach (var executionGroup in executionGroups) {
List<MultithreadedSystem> multithreadedSystems = new List<MultithreadedSystem>();
foreach (var system in executionGroup.Systems) {
MultithreadedSystem multithreaded = CreateMultithreadedSystem(system, templateIndex);
multithreadedSystems.Add(multithreaded);
}
_executionGroups.Add(new ExecutionGroup(multithreadedSystems));
}
_nextState = GameEngineNextState.SynchronizeState;
SynchronizeState().Wait();
// call of the engine loaded systems
foreach (var group in _executionGroups) {
foreach (var system in group.Systems) {
var onLoaded = system.System as Trigger.OnEngineLoaded;
if (onLoaded != null) {
onLoaded.OnEngineLoaded(EventNotifier);
// TODO: verify that OnEngineLoaded didn't change any state (via hashing)
}
}
}
}