Holograms

Content.Client/SimpleStation14/Holograms/AcceptHologramEui.cs

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+using Content.Client.Eui;
+using Content.Client.Holograms;
+using Content.Shared.SimpleStation14.Holograms;
+using JetBrains.Annotations;
+using Robust.Client.Graphics;
+
+namespace Content.Client.SimpleStation14.Holograms;
+
+[UsedImplicitly]
+public sealed class AcceptHologramEui : BaseEui
+{
+    private readonly AcceptHologramWindow _window;
+
+    public AcceptHologramEui()
+    {
+        _window = new AcceptHologramWindow();
+
+        _window.DenyButton.OnPressed += _ =>
+        {
+            SendMessage(new AcceptHologramChoiceMessage(AcceptHologramUiButton.Deny));
+            _window.Close();
+        };
+
+        _window.OnClose += () => SendMessage(new AcceptHologramChoiceMessage(AcceptHologramUiButton.Deny));
+
+        _window.AcceptButton.OnPressed += _ =>
+        {
+            SendMessage(new AcceptHologramChoiceMessage(AcceptHologramUiButton.Accept));
+            _window.Close();
+        };
+    }
+
+    public override void Opened()
+    {
+        IoCManager.Resolve<IClyde>().RequestWindowAttention();
+        _window.OpenCentered();
+    }
+
+    public override void Closed()
+    {
+        _window.Close();
+    }
+
+}

Content.Client/SimpleStation14/Holograms/AcceptHologramWindow.cs

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+using System.Numerics;
+using Robust.Client.UserInterface;
+using Robust.Client.UserInterface.Controls;
+using Robust.Client.UserInterface.CustomControls;
+using static Robust.Client.UserInterface.Controls.BoxContainer;
+
+namespace Content.Client.Holograms;
+
+public sealed class AcceptHologramWindow : DefaultWindow
+{
+    public readonly Button DenyButton;
+    public readonly Button AcceptButton;
+
+    public AcceptHologramWindow()
+    {
+
+        Title = Loc.GetString("accept-hologram-window-title");
+
+        Contents.AddChild(new BoxContainer
+        {
+            Orientation = LayoutOrientation.Vertical,
+            Children =
+            {
+                new BoxContainer
+                {
+                    Orientation = LayoutOrientation.Vertical,
+                    Children =
+                    {
+                        new Label()
+                        {
+                            Text = Loc.GetString("accept-hologram-window-prompt-text-part")
+                        },
+                        new BoxContainer
+                        {
+                            Orientation = LayoutOrientation.Horizontal,
+                            Align = AlignMode.Center,
+                            Children =
+                            {
+                                (AcceptButton = new Button
+                                {
+                                    Text = Loc.GetString("accept-hologram-window-accept-button"),
+                                }),
+
+                                new Control()
+                                {
+                                    MinSize = new Vector2(20, 0)
+                                },
+
+                                (DenyButton = new Button
+                                {
+                                    Text = Loc.GetString("accept-hologram-window-deny-button"),
+                                })
+                            }
+                        },
+                    }
+                },
+            }
+        });
+    }
+}

Content.Client/SimpleStation14/Holograms/HologramSystem.cs

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+using System.Numerics;
+using Content.Shared.SimpleStation14.Holograms;
+using Content.Shared.SimpleStation14.Holograms.Components;
+using Robust.Client.GameObjects;
+using Robust.Client.Player;
+using Robust.Shared.Map;
+
+namespace Content.Client.SimpleStation14.Holograms;
+
+public sealed class HologramSystem : SharedHologramSystem
+{
+    [Dependency] private readonly IPlayerManager _player = default!;
+    [Dependency] private readonly TransformSystem _transform = default!;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<HologramProjectedComponent, ComponentShutdown>(OnProjectedShutdown);
+    }
+
+    public override void Update(float frameTime)
+    {
+        var player = _player.LocalPlayer?.ControlledEntity;
+        if (TryComp<HologramProjectedComponent>(player, out var holoProjComp))
+        {
+            ProjectedUpdate(player.Value, holoProjComp, frameTime); // This makes it so only the currently controlled entity is predicted, assuming they're a hologram.
+
+            // Check if we should be setting the eye target of the hologram.
+            if (holoProjComp.SetEyeTarget && TryComp<EyeComponent>(player.Value, out var eyeComp))
+                eyeComp.Target = holoProjComp.CurProjector;
+        }
+
+        HandleProjectedEffects(EntityQueryEnumerator<HologramProjectedComponent>());
+    }
+
+    private void OnProjectedShutdown(EntityUid hologram, HologramProjectedComponent component, ComponentShutdown args)
+    {
+        DeleteEffect(component);
+
+        if (component.SetEyeTarget && TryComp<EyeComponent>(hologram, out var eyeComp))
+            eyeComp.Target = null; // This should be fine? I guess if you're a hologram riding a vehicle when this happens it'd be a bit weird.
+    }
+
+    private void HandleProjectedEffects(EntityQueryEnumerator<HologramProjectedComponent> query)
+    {
+        while (query.MoveNext(out var hologram, out var holoProjectedComp))
+        {
+            if (holoProjectedComp.EffectPrototype == null)
+            {
+                DeleteEffect(holoProjectedComp);
+                continue;
+            }
+
+            if (!holoProjectedComp.CurrentlyInProjector || holoProjectedComp.CurProjector == null || !Exists(holoProjectedComp.CurProjector.Value))
+            {
+                DeleteEffect(holoProjectedComp);
+                continue;
+            }
+
+            var projector = holoProjectedComp.CurProjector.Value;
+
+            var holoXformComp = Transform(hologram);
+            var holoCoords = _transform.GetMoverCoordinates(hologram, holoXformComp);
+
+            var projXformComp = Transform(projector);
+            var projCoords = _transform.GetMoverCoordinates(projector, projXformComp);
+
+            if (holoCoords.EntityId != projCoords.EntityId) // ¯\_(ツ)_/¯
+            {
+                DeleteEffect(holoProjectedComp);
+                continue;
+            }
+
+            var originPos = projCoords.Position;
+
+            // Add the effect's offset, if applicable.
+            if (TryComp<HologramProjectorComponent>(projector, out var projComp))
+            {
+                var direction = projXformComp.LocalRotation.GetCardinalDir();
+
+                var offset = direction switch
+                {
+                    Direction.North => projComp.EffectOffsets[Direction.South],
+                    Direction.South => projComp.EffectOffsets[Direction.North],
+                    Direction.East => projComp.EffectOffsets[Direction.West],
+                    Direction.West => projComp.EffectOffsets[Direction.East],
+                    _ => Vector2.Zero
+                };
+
+                originPos += offset;
+            }
+
+            // Determine a middle point between the hologram and the projector.
+            var effectPos = (holoCoords.Position + originPos) / 2;
+
+            // Determine a rotation that points from the projector to the hologram.
+            var effectRot = (holoCoords.Position - originPos).ToAngle() - MathHelper.PiOver2;
+
+            var effectCoords = new EntityCoordinates(holoCoords.EntityId, effectPos);
+            if (!effectCoords.IsValid(EntityManager))
+            {
+                DeleteEffect(holoProjectedComp);
+                continue;
+            }
+
+            // Set or spawn the effect.
+            if (holoProjectedComp.EffectEntity == null || !Exists(holoProjectedComp.EffectEntity.Value))
+                holoProjectedComp.EffectEntity = Spawn(holoProjectedComp.EffectPrototype, effectCoords);
+            else
+                _transform.SetLocalPosition(holoProjectedComp.EffectEntity.Value, effectPos);
+
+            _transform.SetLocalRotation(holoProjectedComp.EffectEntity.Value, effectRot);
+
+            // Determine the scaling factor to make it fit between the hologram and the projector.
+            var yScale = (holoCoords.Position - originPos).Length();
+            var effectScale = new Vector2(1, Math.Max(0.1f, yScale)); // No smaller than 0.1.
+            Comp<SpriteComponent>(holoProjectedComp.EffectEntity.Value).Scale = effectScale;
+        }
+    }
+
+    private void DeleteEffect(HologramProjectedComponent component)
+    {
+        if (component.EffectEntity != null && Exists(component.EffectEntity.Value))
+            QueueDel(component.EffectEntity.Value);
+
+        component.EffectEntity = null;
+    }
+}

Content.Server/SimpleStation14/Holograms/AcceptHologramEui.cs

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+using Content.Server.EUI;
+using Content.Shared.Eui;
+using Content.Shared.SimpleStation14.Holograms;
+
+namespace Content.Server.SimpleStation14.Holograms;
+
+public sealed class AcceptHologramEui : BaseEui
+{
+    private readonly HologramSystem _hologramSystem;
+    private readonly Mind.Mind _mind;
+
+    public AcceptHologramEui(Mind.Mind mind, HologramSystem hologramSys)
+    {
+        _mind = mind;
+        _hologramSystem = hologramSys;
+    }
+
+    public override void HandleMessage(EuiMessageBase msg)
+    {
+        base.HandleMessage(msg);
+
+        if (msg is not AcceptHologramChoiceMessage choice ||
+            choice.Button == AcceptHologramUiButton.Deny)
+        {
+            Close();
+            return;
+        }
+
+        _hologramSystem.TransferMindToHologram(_mind);
+        Close();
+    }
+}

Content.Server/SimpleStation14/Holograms/Components/HologramDiskComponent.cs

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+namespace Content.Server.SimpleStation14.Holograms;
+
+/// <summary>
+///     Marks this entity as storing a hologram's data in it, for use in a <see cref="HologramServerComponent"/>.
+/// </summary>
+[RegisterComponent]
+public sealed class HologramDiskComponent : Component
+{
+    /// <summary>
+    ///     The mind stored in this Holodisk.
+    /// </summary>
+    [ViewVariables]
+    public Mind.Mind? HoloMind = null;
+}

Content.Server/SimpleStation14/Holograms/Components/HologramDiskDummyComponent.cs

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+using Robust.Shared.Prototypes;
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype;
+
+namespace Content.Server.SimpleStation14.Holograms.Components;
+
+/// <summary>
+///     For any items that should generate a 'dummy' hologram when inserted as a holo disk.
+///     Mostly intended for jokes and gaffs, but could be used for useful AI entities as well.
+/// </summary>
+[RegisterComponent]
+public sealed class HologramDiskDummyComponent : Component
+{
+    /// <summary>
+    ///     The prototype to spawn when this disk is inserted into a server.
+    /// </summary>
+    [DataField("prototype", required: true, customTypeSerializer: typeof(PrototypeIdSerializer<EntityPrototype>)), ViewVariables(VVAccess.ReadWrite)]
+    public string HoloPrototype = default!;
+}

Content.Server/SimpleStation14/Holograms/Systems/HologramProjectorSystem.cs

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+using Content.Server.Power.Components;
+using Content.Server.Power.EntitySystems;
+using Content.Server.SurveillanceCamera;
+using Content.Shared.SimpleStation14.Holograms;
+using Content.Shared.SimpleStation14.Holograms.Components;
+
+namespace Content.Server.SimpleStation14.Holograms;
+
+public sealed class HologramProjectorSystem : EntitySystem
+{
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent((EntityUid ent, HologramProjectorComponent comp, ref PowerChangedEvent _) => CheckState(ent, comp));
+        SubscribeLocalEvent<HologramProjectorComponent, SurveillanceCameraChangeStateEvent>((ent, comp, args) => CheckState(ent, comp));
+        SubscribeLocalEvent<HologramProjectorComponent, MapInitEvent>((ent, comp, args) => CheckState(ent, comp));
+    }
+
+    public void CheckState(EntityUid projector, HologramProjectorComponent? projComp = null)
+    {
+        if (!Resolve(projector, ref projComp))
+            return;
+
+        if (TryComp<ApcPowerReceiverComponent>(projector, out var powerComp) && !powerComp.Powered ||
+            TryComp<SurveillanceCameraComponent>(projector, out var cameraComp) && !cameraComp.Active)
+        {
+            RemComp<HologramProjectorActiveComponent>(projector);
+            return;
+        }
+
+        EnsureComp<HologramProjectorActiveComponent>(projector);
+    }
+}