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94 changes: 94 additions & 0 deletions
94
Content.Server/SS220/ShapeCollisionTracker/ShapeCollisionTrackerSystem.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,94 @@ | ||
| using System.Collections.Immutable; | ||
| using Content.Shared.Physics; | ||
| using Content.Shared.SS220.ShapeCollisionTracker; | ||
| using Robust.Shared.Physics.Components; | ||
| using Robust.Shared.Physics.Events; | ||
| using Robust.Shared.Physics.Systems; | ||
|
|
||
| namespace Content.Server.SS220.ShapeCollisionTracker; | ||
|
|
||
| public sealed class ShapeCollisionTrackerSystem : EntitySystem | ||
| { | ||
| [Dependency] private readonly SharedBroadphaseSystem _broadphase = default!; | ||
| [Dependency] private readonly FixtureSystem _fixtures = default!; | ||
|
|
||
| /// <inheritdoc/> | ||
| public override void Initialize() | ||
| { | ||
| SubscribeLocalEvent<ShapeCollisionTrackerComponent, StartCollideEvent>(OnStartCollide); | ||
| SubscribeLocalEvent<ShapeCollisionTrackerComponent, EndCollideEvent>(OnEndCollide); | ||
| SubscribeLocalEvent<ShapeCollisionTrackerComponent, MapInitEvent>(OnMapInit); | ||
| SubscribeLocalEvent<ShapeCollisionTrackerComponent, ComponentShutdown>(OnShutdown); | ||
| SubscribeLocalEvent<ShapeCollisionTrackerComponent, AnchorStateChangedEvent>(OnAnchor); | ||
| } | ||
|
|
||
| private void OnAnchor( | ||
| EntityUid uid, | ||
| ShapeCollisionTrackerComponent component, | ||
| ref AnchorStateChangedEvent args) | ||
| { | ||
| component.Enabled = !component.RequiresAnchored || | ||
| args.Anchored; | ||
|
|
||
| if (!component.Enabled) | ||
| { | ||
| component.Colliding.Clear(); | ||
| } | ||
| // Re-check for contacts as we cleared them. | ||
| else if (TryComp<PhysicsComponent>(uid, out var body)) | ||
| { | ||
| _broadphase.RegenerateContacts(uid, body); | ||
| } | ||
| } | ||
|
|
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| private void OnStartCollide( | ||
| EntityUid uid, | ||
| ShapeCollisionTrackerComponent component, | ||
| ref StartCollideEvent args) | ||
| { | ||
| if (args.OurFixture.ID != ShapeCollisionTrackerComponent.FixtureID) | ||
| return; | ||
|
|
||
| component.Colliding.Add(args.OtherEntity); | ||
| RaiseLocalEvent(uid, new ShapeCollisionTrackerUpdatedEvent(component.Colliding.ToImmutableHashSet())); | ||
| } | ||
|
|
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| private void OnEndCollide( | ||
| EntityUid uid, | ||
| ShapeCollisionTrackerComponent component, | ||
| ref EndCollideEvent args) | ||
| { | ||
| if (args.OurFixture.ID != ShapeCollisionTrackerComponent.FixtureID) | ||
| return; | ||
|
|
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| component.Colliding.Remove(args.OtherEntity); | ||
| RaiseLocalEvent(uid, new ShapeCollisionTrackerUpdatedEvent(component.Colliding.ToImmutableHashSet())); | ||
| } | ||
|
|
||
| private void OnMapInit( | ||
| EntityUid uid, | ||
| ShapeCollisionTrackerComponent component, | ||
| MapInitEvent args) | ||
| { | ||
| component.Enabled = !component.RequiresAnchored || | ||
| EntityManager.GetComponent<TransformComponent>(uid).Anchored; | ||
|
|
||
| if (!TryComp<PhysicsComponent>(uid, out _)) | ||
| return; | ||
|
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| _fixtures.TryCreateFixture( | ||
| uid, | ||
| component.Shape, | ||
| ShapeCollisionTrackerComponent.FixtureID, | ||
| hard: false, | ||
| collisionLayer: (int) (CollisionGroup.MidImpassable | CollisionGroup.LowImpassable | CollisionGroup.HighImpassable)); | ||
| } | ||
|
|
||
| private static void OnShutdown( | ||
| EntityUid uid, | ||
| ShapeCollisionTrackerComponent component, | ||
| ComponentShutdown args) | ||
| { | ||
| component.Colliding.Clear(); | ||
| } | ||
| } |
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