83 lines
3.1 KiB
C#
83 lines
3.1 KiB
C#
using Content.Shared.Explosion;
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using Robust.Client.GameObjects;
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using Robust.Client.Graphics;
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using Robust.Client.ResourceManagement;
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using Robust.Shared.GameStates;
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using Robust.Shared.Prototypes;
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namespace Content.Client.Explosion;
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/// <summary>
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/// This system is responsible for showing the client-side explosion effects (light source & fire-overlay). The
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/// fire overlay code is just a bastardized version of the atmos plasma fire overlay and uses the same texture.
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/// </summary>
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public sealed class ExplosionOverlaySystem : EntitySystem
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{
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[Dependency] private readonly IPrototypeManager _protoMan = default!;
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[Dependency] private readonly IResourceCache _resCache = default!;
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[Dependency] private readonly IOverlayManager _overlayMan = default!;
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/// <summary>
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/// For how many seconds should an explosion stay on-screen once it has finished expanding?
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/// </summary>
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public float ExplosionPersistence = 0.3f;
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public override void Initialize()
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{
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base.Initialize();
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SubscribeLocalEvent<ExplosionVisualsComponent, ComponentInit>(OnExplosionInit);
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SubscribeLocalEvent<ExplosionVisualsComponent, ComponentRemove>(OnCompRemove);
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SubscribeLocalEvent<ExplosionVisualsComponent, ComponentHandleState>(OnExplosionHandleState);
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_overlayMan.AddOverlay(new ExplosionOverlay());
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}
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private void OnExplosionHandleState(EntityUid uid, ExplosionVisualsComponent component, ref ComponentHandleState args)
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{
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if (args.Current is not ExplosionVisualsState state)
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return;
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component.Epicenter = state.Epicenter;
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component.SpaceTiles = state.SpaceTiles;
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component.Tiles = state.Tiles;
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component.Intensity = state.Intensity;
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component.ExplosionType = state.ExplosionType;
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component.SpaceMatrix = state.SpaceMatrix;
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component.SpaceTileSize = state.SpaceTileSize;
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}
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private void OnCompRemove(EntityUid uid, ExplosionVisualsComponent component, ComponentRemove args)
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{
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QueueDel(component.LightEntity);
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}
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private void OnExplosionInit(EntityUid uid, ExplosionVisualsComponent component, ComponentInit args)
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{
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if (!_protoMan.TryIndex(component.ExplosionType, out ExplosionPrototype? type))
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return;
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// spawn in a client-side light source at the epicenter
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var lightEntity = Spawn("ExplosionLight", component.Epicenter);
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var light = EnsureComp<PointLightComponent>(lightEntity);
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light.Energy = light.Radius = component.Intensity.Count;
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light.Color = type.LightColor;
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component.LightEntity = lightEntity;
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component.FireColor = type.FireColor;
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component.IntensityPerState = type.IntensityPerState;
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var fireRsi = _resCache.GetResource<RSIResource>(type.TexturePath).RSI;
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foreach (var state in fireRsi)
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{
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component.FireFrames.Add(state.GetFrames(RSI.State.Direction.South));
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if (component.FireFrames.Count == type.FireStates)
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break;
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}
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}
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public override void Shutdown()
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{
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base.Shutdown();
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_overlayMan.RemoveOverlay<ExplosionOverlay>();
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}
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}
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