56 lines
1.7 KiB
C#
56 lines
1.7 KiB
C#
using Content.Server.Decals;
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using Content.Shared.Chemistry.Reaction;
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using Content.Shared.Chemistry.Reagent;
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using Content.Shared.Decals;
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using Content.Shared.FixedPoint;
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using Robust.Shared.Map;
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using Robust.Shared.Map.Components;
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namespace Content.Server.Chemistry.TileReactions;
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/// <summary>
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/// Purges all cleanable decals on a tile.
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/// </summary>
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[DataDefinition]
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public sealed class CleanDecalsReaction : ITileReaction
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{
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/// <summary>
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/// For every cleaned decal we lose this much reagent.
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/// </summary>
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[DataField("cleanCost")]
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public FixedPoint2 CleanCost { get; private set; } = FixedPoint2.New(0.25f);
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public FixedPoint2 TileReact(TileRef tile, ReagentPrototype reagent, FixedPoint2 reactVolume)
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{
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var entMan = IoCManager.Resolve<IEntityManager>();
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if (reactVolume <= CleanCost ||
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!entMan.TryGetComponent<MapGridComponent>(tile.GridUid, out var grid) ||
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!entMan.TryGetComponent<DecalGridComponent>(tile.GridUid, out var decalGrid))
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{
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return FixedPoint2.Zero;
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}
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var lookupSystem = entMan.System<EntityLookupSystem>();
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var decalSystem = entMan.System<DecalSystem>();
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// Very generous hitbox.
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var decals = decalSystem
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.GetDecalsIntersecting(tile.GridUid, lookupSystem.GetLocalBounds(tile, grid.TileSize).Enlarged(0.5f).Translated(new Vector2(-0.5f, -0.5f)));
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var amount = FixedPoint2.Zero;
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foreach (var decal in decals)
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{
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if (!decal.Decal.Cleanable)
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continue;
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decalSystem.RemoveDecal(tile.GridUid, decal.Index, decalGrid);
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amount += CleanCost;
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if (amount > reactVolume)
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break;
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}
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return amount;
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}
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}
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