Portals & hand teleporter (#13266)

* basic system with portals & linked ents * hand tele sprites, no impl * hand tele and teleportation works * fancy it up * oog * special case projectiles * predict portal-to-portal teleportation * this stuff * check nullspace * sloth * give to rd instead * i guess this can probably happen * docs
2023-01-02 19:58:25 -06:00
parent a21a4711b6
commit c821ca71aa
23 changed files with 592 additions and 3 deletions
--- a/Content.Server/Teleportation/HandTeleporterSystem.cs
+++ b/Content.Server/Teleportation/HandTeleporterSystem.cs
@@ -0,0 +1,57 @@
+using Content.Shared.Interaction.Events;
+using Content.Shared.Teleportation.Components;
+using Content.Shared.Teleportation.Systems;
+using Robust.Server.GameObjects;
+
+namespace Content.Server.Teleportation;
+
+/// <summary>
+/// This handles creating portals from a hand teleporter.
+/// </summary>
+public sealed class HandTeleporterSystem : EntitySystem
+{
+    [Dependency] private readonly LinkedEntitySystem _link = default!;
+    [Dependency] private readonly AudioSystem _audio = default!;
+
+    /// <inheritdoc/>
+    public override void Initialize()
+    {
+        SubscribeLocalEvent<HandTeleporterComponent, UseInHandEvent>(OnUseInHand);
+    }
+
+    private void OnUseInHand(EntityUid uid, HandTeleporterComponent component, UseInHandEvent args)
+    {
+        if (Deleted(component.FirstPortal))
+            component.FirstPortal = null;
+
+        if (Deleted(component.SecondPortal))
+            component.SecondPortal = null;
+
+        // Create the first portal.
+        if (component.FirstPortal == null && component.SecondPortal == null)
+        {
+            var timeout = EnsureComp<PortalTimeoutComponent>(args.User);
+            timeout.EnteredPortal = null;
+            component.FirstPortal = Spawn(component.FirstPortalPrototype, Transform(args.User).Coordinates);
+            _audio.PlayPvs(component.NewPortalSound, uid);
+        }
+        else if (component.SecondPortal == null)
+        {
+            var timeout = EnsureComp<PortalTimeoutComponent>(args.User);
+            timeout.EnteredPortal = null;
+            component.SecondPortal = Spawn(component.SecondPortalPrototype, Transform(args.User).Coordinates);
+            _link.TryLink(component.FirstPortal!.Value, component.SecondPortal.Value, true);
+            _audio.PlayPvs(component.NewPortalSound, uid);
+        }
+        else
+        {
+            // Clear both portals
+            QueueDel(component.FirstPortal!.Value);
+            QueueDel(component.SecondPortal!.Value);
+
+            component.FirstPortal = null;
+            component.SecondPortal = null;
+            _audio.PlayPvs(component.ClearPortalsSound, uid);
+        }
+    }
+}