321 lines
12 KiB
C#
321 lines
12 KiB
C#
using System.Diagnostics.CodeAnalysis;
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using Content.Client.Popups;
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using Content.Shared.Construction;
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using Content.Shared.Construction.Prototypes;
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using Content.Shared.Construction.Steps;
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using Content.Shared.Examine;
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using Content.Shared.Input;
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using Content.Shared.Interaction;
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using Content.Shared.Wall;
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using JetBrains.Annotations;
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using Robust.Client.GameObjects;
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using Robust.Client.Player;
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using Robust.Shared.Input;
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using Robust.Shared.Input.Binding;
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using Robust.Shared.Map;
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using Robust.Shared.Player;
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using Robust.Shared.Prototypes;
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namespace Content.Client.Construction
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{
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/// <summary>
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/// The client-side implementation of the construction system, which is used for constructing entities in game.
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/// </summary>
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[UsedImplicitly]
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public sealed class ConstructionSystem : SharedConstructionSystem
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{
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[Dependency] private readonly IPlayerManager _playerManager = default!;
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[Dependency] private readonly IPrototypeManager _prototypeManager = default!;
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[Dependency] private readonly SharedInteractionSystem _interactionSystem = default!;
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[Dependency] private readonly PopupSystem _popupSystem = default!;
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private readonly Dictionary<int, EntityUid> _ghosts = new();
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private readonly Dictionary<string, ConstructionGuide> _guideCache = new();
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public bool CraftingEnabled { get; private set; }
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/// <inheritdoc />
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public override void Initialize()
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{
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base.Initialize();
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UpdatesOutsidePrediction = true;
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SubscribeLocalEvent<LocalPlayerAttachedEvent>(HandlePlayerAttached);
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SubscribeNetworkEvent<AckStructureConstructionMessage>(HandleAckStructure);
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SubscribeNetworkEvent<ResponseConstructionGuide>(OnConstructionGuideReceived);
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CommandBinds.Builder
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.Bind(ContentKeyFunctions.OpenCraftingMenu,
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new PointerInputCmdHandler(HandleOpenCraftingMenu, outsidePrediction:true))
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.Bind(EngineKeyFunctions.Use,
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new PointerInputCmdHandler(HandleUse, outsidePrediction: true))
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.Bind(ContentKeyFunctions.EditorFlipObject,
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new PointerInputCmdHandler(HandleFlip, outsidePrediction:true))
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.Register<ConstructionSystem>();
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SubscribeLocalEvent<ConstructionGhostComponent, ExaminedEvent>(HandleConstructionGhostExamined);
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}
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private void OnConstructionGuideReceived(ResponseConstructionGuide ev)
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{
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_guideCache[ev.ConstructionId] = ev.Guide;
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ConstructionGuideAvailable?.Invoke(this, ev.ConstructionId);
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}
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/// <inheritdoc />
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public override void Shutdown()
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{
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base.Shutdown();
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CommandBinds.Unregister<ConstructionSystem>();
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}
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public ConstructionGuide? GetGuide(ConstructionPrototype prototype)
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{
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if (_guideCache.TryGetValue(prototype.ID, out var guide))
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return guide;
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RaiseNetworkEvent(new RequestConstructionGuide(prototype.ID));
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return null;
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}
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private void HandleConstructionGhostExamined(EntityUid uid, ConstructionGhostComponent component, ExaminedEvent args)
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{
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if (component.Prototype == null) return;
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args.PushMarkup(Loc.GetString(
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"construction-ghost-examine-message",
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("name", component.Prototype.Name)));
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if (!_prototypeManager.TryIndex(component.Prototype.Graph, out ConstructionGraphPrototype? graph))
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return;
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var startNode = graph.Nodes[component.Prototype.StartNode];
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if (!graph.TryPath(component.Prototype.StartNode, component.Prototype.TargetNode, out var path) ||
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!startNode.TryGetEdge(path[0].Name, out var edge))
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{
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return;
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}
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foreach (ConstructionGraphStep step in edge.Steps)
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{
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args.Message.PushNewline();
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step.DoExamine(args);
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}
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}
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public event EventHandler<CraftingAvailabilityChangedArgs>? CraftingAvailabilityChanged;
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public event EventHandler<string>? ConstructionGuideAvailable;
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public event EventHandler? ToggleCraftingWindow;
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public event EventHandler? FlipConstructionPrototype;
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private void HandleAckStructure(AckStructureConstructionMessage msg)
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{
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// We get sent a NetEntity but it actually corresponds to our local Entity.
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ClearGhost(msg.GhostId);
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}
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private void HandlePlayerAttached(LocalPlayerAttachedEvent msg)
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{
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var available = IsCraftingAvailable(msg.Entity);
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UpdateCraftingAvailability(available);
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}
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private bool HandleOpenCraftingMenu(in PointerInputCmdHandler.PointerInputCmdArgs args)
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{
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if (args.State == BoundKeyState.Down)
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ToggleCraftingWindow?.Invoke(this, EventArgs.Empty);
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return true;
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}
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private bool HandleFlip(in PointerInputCmdHandler.PointerInputCmdArgs args)
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{
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if (args.State == BoundKeyState.Down)
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FlipConstructionPrototype?.Invoke(this, EventArgs.Empty);
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return true;
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}
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private void UpdateCraftingAvailability(bool available)
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{
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if (CraftingEnabled == available)
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return;
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CraftingAvailabilityChanged?.Invoke(this, new CraftingAvailabilityChangedArgs(available));
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CraftingEnabled = available;
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}
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private static bool IsCraftingAvailable(EntityUid? entity)
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{
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if (entity == default)
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return false;
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// TODO: Decide if entity can craft, using capabilities or something
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return true;
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}
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private bool HandleUse(in PointerInputCmdHandler.PointerInputCmdArgs args)
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{
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if (!args.EntityUid.IsValid() || !IsClientSide(args.EntityUid))
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return false;
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if (!HasComp<ConstructionGhostComponent>(args.EntityUid))
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return false;
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TryStartConstruction(args.EntityUid);
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return true;
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}
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/// <summary>
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/// Creates a construction ghost at the given location.
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/// </summary>
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public void SpawnGhost(ConstructionPrototype prototype, EntityCoordinates loc, Direction dir)
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=> TrySpawnGhost(prototype, loc, dir, out _);
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/// <summary>
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/// Creates a construction ghost at the given location.
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/// </summary>
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public bool TrySpawnGhost(
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ConstructionPrototype prototype,
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EntityCoordinates loc,
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Direction dir,
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[NotNullWhen(true)] out EntityUid? ghost)
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{
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ghost = null;
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if (_playerManager.LocalPlayer?.ControlledEntity is not { } user ||
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!user.IsValid())
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{
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return false;
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}
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if (GhostPresent(loc))
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return false;
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// This InRangeUnobstructed should probably be replaced with "is there something blocking us in that tile?"
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var predicate = GetPredicate(prototype.CanBuildInImpassable, loc.ToMap(EntityManager));
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if (!_interactionSystem.InRangeUnobstructed(user, loc, 20f, predicate: predicate))
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return false;
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if (!CheckConstructionConditions(prototype, loc, dir, user, showPopup: true))
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return false;
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ghost = EntityManager.SpawnEntity("constructionghost", loc);
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var comp = EntityManager.GetComponent<ConstructionGhostComponent>(ghost.Value);
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comp.Prototype = prototype;
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EntityManager.GetComponent<TransformComponent>(ghost.Value).LocalRotation = dir.ToAngle();
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_ghosts.Add(ghost.GetHashCode(), ghost.Value);
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var sprite = EntityManager.GetComponent<SpriteComponent>(ghost.Value);
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sprite.Color = new Color(48, 255, 48, 128);
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for (int i = 0; i < prototype.Layers.Count; i++)
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{
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sprite.AddBlankLayer(i); // There is no way to actually check if this already exists, so we blindly insert a new one
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sprite.LayerSetSprite(i, prototype.Layers[i]);
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sprite.LayerSetShader(i, "unshaded");
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sprite.LayerSetVisible(i, true);
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}
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if (prototype.CanBuildInImpassable)
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EnsureComp<WallMountComponent>(ghost.Value).Arc = new(Math.Tau);
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return true;
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}
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private bool CheckConstructionConditions(ConstructionPrototype prototype, EntityCoordinates loc, Direction dir,
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EntityUid user, bool showPopup = false)
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{
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foreach (var condition in prototype.Conditions)
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{
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if (!condition.Condition(user, loc, dir))
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{
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if (showPopup)
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{
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var message = condition.GenerateGuideEntry()?.Localization;
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if (message != null)
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{
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// Show the reason to the user:
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_popupSystem.PopupCoordinates(Loc.GetString(message), loc);
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}
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}
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return false;
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}
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}
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return true;
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}
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/// <summary>
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/// Checks if any construction ghosts are present at the given position
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/// </summary>
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private bool GhostPresent(EntityCoordinates loc)
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{
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foreach (var ghost in _ghosts)
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{
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if (EntityManager.GetComponent<TransformComponent>(ghost.Value).Coordinates.Equals(loc))
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return true;
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}
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return false;
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}
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public void TryStartConstruction(EntityUid ghostId, ConstructionGhostComponent? ghostComp = null)
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{
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if (!Resolve(ghostId, ref ghostComp))
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return;
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if (ghostComp.Prototype == null)
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{
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throw new ArgumentException($"Can't start construction for a ghost with no prototype. Ghost id: {ghostId}");
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}
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var transform = EntityManager.GetComponent<TransformComponent>(ghostId);
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var msg = new TryStartStructureConstructionMessage(GetNetCoordinates(transform.Coordinates), ghostComp.Prototype.ID, transform.LocalRotation, ghostId.GetHashCode());
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RaiseNetworkEvent(msg);
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}
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/// <summary>
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/// Starts constructing an item underneath the attached entity.
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/// </summary>
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public void TryStartItemConstruction(string prototypeName)
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{
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RaiseNetworkEvent(new TryStartItemConstructionMessage(prototypeName));
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}
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/// <summary>
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/// Removes a construction ghost entity with the given ID.
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/// </summary>
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public void ClearGhost(int ghostId)
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{
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if (!_ghosts.TryGetValue(ghostId, out var ghost))
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return;
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EntityManager.QueueDeleteEntity(ghost);
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_ghosts.Remove(ghostId);
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}
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/// <summary>
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/// Removes all construction ghosts.
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/// </summary>
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public void ClearAllGhosts()
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{
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foreach (var ghost in _ghosts.Values)
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{
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EntityManager.QueueDeleteEntity(ghost);
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}
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_ghosts.Clear();
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}
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}
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public sealed class CraftingAvailabilityChangedArgs : EventArgs
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{
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public bool Available { get; }
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public CraftingAvailabilityChangedArgs(bool available)
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{
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Available = available;
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}
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}
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}
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