74 lines
2.7 KiB
C#
74 lines
2.7 KiB
C#
using System.Collections.Generic;
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namespace Syntriax.Engine.Core;
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public class UpdateManager : UniverseObject
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{
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private static Comparer<IBehaviour> SortByPriority() => Comparer<IBehaviour>.Create((x, y) => y.Priority.CompareTo(x.Priority));
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private readonly ActiveBehaviourCollectorSorted<IFirstFrameUpdate> firstFrameUpdates = new() { SortBy = SortByPriority() };
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private readonly ActiveBehaviourCollectorSorted<IPreUpdate> preUpdateEntities = new() { SortBy = SortByPriority() };
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private readonly ActiveBehaviourCollectorSorted<IUpdate> updateEntities = new() { SortBy = SortByPriority() };
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private readonly ActiveBehaviourCollectorSorted<IPostUpdate> postUpdateEntities = new() { SortBy = SortByPriority() };
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private readonly List<IFirstFrameUpdate> toCallFirstFrameUpdates = new(32);
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protected override void OnEnteringUniverse(IUniverse universe)
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{
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firstFrameUpdates.Assign(universe);
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preUpdateEntities.Assign(universe);
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updateEntities.Assign(universe);
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postUpdateEntities.Assign(universe);
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universe.OnPreUpdate.AddListener(OnPreUpdate);
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universe.OnUpdate.AddListener(OnUpdate);
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universe.OnPostUpdate.AddListener(OnPostUpdate);
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}
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protected override void OnExitingUniverse(IUniverse universe)
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{
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firstFrameUpdates.Unassign();
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preUpdateEntities.Unassign();
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updateEntities.Unassign();
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postUpdateEntities.Unassign();
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universe.OnPreUpdate.RemoveListener(OnPreUpdate);
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universe.OnUpdate.RemoveListener(OnUpdate);
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universe.OnPostUpdate.RemoveListener(OnPostUpdate);
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}
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private void OnPreUpdate(IUniverse sender, IUniverse.UpdateArguments args)
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{
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for (int i = toCallFirstFrameUpdates.Count - 1; i >= 0; i--)
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{
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toCallFirstFrameUpdates[i].FirstActiveFrame();
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toCallFirstFrameUpdates.RemoveAt(i);
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}
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for (int i = preUpdateEntities.Count - 1; i >= 0; i--)
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preUpdateEntities[i].PreUpdate();
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}
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private void OnUpdate(IUniverse sender, IUniverse.UpdateArguments args)
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{
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for (int i = updateEntities.Count - 1; i >= 0; i--)
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updateEntities[i].Update();
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}
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private void OnPostUpdate(IUniverse sender, IUniverse.UpdateArguments args)
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{
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for (int i = postUpdateEntities.Count - 1; i >= 0; i--)
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postUpdateEntities[i].PostUpdate();
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}
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private void OnFirstFrameCollected(IBehaviourCollector<IFirstFrameUpdate> sender, IBehaviourCollector<IFirstFrameUpdate>.BehaviourCollectedArguments args)
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{
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toCallFirstFrameUpdates.Add(args.BehaviourCollected);
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}
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public UpdateManager()
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{
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firstFrameUpdates.OnCollected.AddListener(OnFirstFrameCollected);
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}
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}
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