75 lines
2.6 KiB
C#
75 lines
2.6 KiB
C#
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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 System.Comparison<IBehaviour> SortByPriority() => (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 = [];
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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 += OnPreUpdate;
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universe.OnUpdate += OnUpdate;
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universe.OnPostUpdate += 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 -= OnPreUpdate;
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universe.OnUpdate -= OnUpdate;
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universe.OnPostUpdate -= OnPostUpdate;
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}
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private void OnPreUpdate(IUniverse sender, UniverseTime engineTime)
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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.Behaviours.Count - 1; i >= 0; i--)
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preUpdateEntities.Behaviours[i].PreUpdate();
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}
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private void OnUpdate(IUniverse sender, UniverseTime engineTime)
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{
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for (int i = updateEntities.Behaviours.Count - 1; i >= 0; i--)
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updateEntities.Behaviours[i].Update();
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}
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private void OnPostUpdate(IUniverse sender, UniverseTime engineTime)
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{
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for (int i = postUpdateEntities.Behaviours.Count - 1; i >= 0; i--)
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postUpdateEntities.Behaviours[i].PostUpdate();
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}
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private void OnFirstFrameCollected(IBehaviourCollector<IFirstFrameUpdate> sender, IFirstFrameUpdate behaviourCollected)
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{
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toCallFirstFrameUpdates.Add(behaviourCollected);
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}
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public UpdateManager()
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{
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firstFrameUpdates.OnCollected += OnFirstFrameCollected;
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}
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}
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