82 lines
2.7 KiB
C#
82 lines
2.7 KiB
C#
using Content.Server.NodeContainer;
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using Content.Server.NodeContainer.EntitySystems;
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using Content.Server.NodeContainer.Nodes;
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using Content.Shared.Atmos;
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using Robust.Shared.GameObjects;
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using Robust.Shared.IoC;
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using Robust.Shared.Map;
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using System.Collections.Generic;
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namespace Content.Server.Atmos.Piping.EntitySystems;
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public sealed class AtmosPipeNodeAppearanceSystem : EntitySystem
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{
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[Dependency] private readonly IMapManager _mapManager = default!;
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public override void Initialize()
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{
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base.Initialize();
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// This should probably just be a directed event, but that would require a weird component that exists only to
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// receive directed events (*cough* *cough* CableVisComponent *cough*).
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//
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// Really I want to target any entity with a PipeConnectorVisualizer or a NodeContainerComponent that contains a
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// pipe-node. But I don't know of nice way of doing that.
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SubscribeLocalEvent<NodeGroupsRebuilt>(OnNodeUpdate);
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}
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private void OnNodeUpdate(ref NodeGroupsRebuilt ev)
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{
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UpdateAppearance(ev.NodeOwner);
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}
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private void UpdateAppearance(EntityUid uid, AppearanceComponent? appearance = null, NodeContainerComponent? container = null,
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TransformComponent? xform = null)
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{
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if (!Resolve(uid, ref appearance, ref container, ref xform, false))
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return;
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if (!_mapManager.TryGetGrid(xform.GridID, out var grid))
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return;
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// get connected entities
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var anyPipeNodes = false;
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HashSet<EntityUid> connected = new();
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foreach (var node in container.Nodes.Values)
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{
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if (node is not PipeNode)
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continue;
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anyPipeNodes = true;
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foreach (var connectedNode in node.ReachableNodes)
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{
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if (connectedNode is PipeNode)
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connected.Add(connectedNode.Owner);
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}
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}
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if (!anyPipeNodes)
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return;
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// find the cardinal directions of any connected entities
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var netConnectedDirections = PipeDirection.None;
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var tile = grid.TileIndicesFor(xform.Coordinates);
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foreach (var neighbour in connected)
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{
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var otherTile = grid.TileIndicesFor(Transform(neighbour).Coordinates);
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netConnectedDirections |= (otherTile - tile) switch
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{
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(0, 1) => PipeDirection.North,
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(0, -1) => PipeDirection.South,
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(1, 0) => PipeDirection.East,
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(-1, 0) => PipeDirection.West,
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_ => PipeDirection.None
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};
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}
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appearance.SetData(PipeVisuals.VisualState, netConnectedDirections);
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}
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}
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