Gateway destinations (#21040)

* Gateway generation

* Gateway stuff

* gatewehs

* mercenaries

* play area

* Range fixes and tweaks

* weh

* Gateway UI polish

* Lots of fixes

* Knock some items off

* Fix dungeon spawning

Realistically we should probably be using a salvage job.

* wahwah

* wehvs

* expression

* weh

* eee

* a

* a

* WEH

* frfr

* Gatwey

* Fix gateway windows

* Fix gateway windows

* a

* a

* Better layer masking

* a

* a

* Noise fixes

* a

* Fix fractal calculations

* a

* More fixes

* Fixes

* Add layers back in

* Fixes

* namespaces and ftl

* Other TODO

* Fix distance

* Cleanup

* Fix test

Content.Server/Gateway/Components/GatewayGeneratorDestinationComponent.cs

@@ -0,0 +1,37 @@
+namespace Content.Server.Gateway.Components;
+
+/// <summary>
+/// Destination created by <see cref="GatewayGeneratorComponent"/>
+/// </summary>
+[RegisterComponent]
+public sealed partial class GatewayGeneratorDestinationComponent : Component
+{
+    /// <summary>
+    /// Generator that created this destination.
+    /// </summary>
+    [DataField]
+    public EntityUid Generator;
+
+    /// <summary>
+    /// Is the map locked from being used still or unlocked.
+    /// Used in conjunction with the attached generator's NextUnlock.
+    /// </summary>
+    [DataField]
+    public bool Locked = true;
+
+    [DataField]
+    public bool Loaded;
+
+    /// <summary>
+    /// Seed used for this destination.
+    /// </summary>
+    [DataField]
+    public int Seed;
+
+    /// <summary>
+    /// Origin of the gateway.
+    /// </summary>
+    [DataField]
+    public Vector2i Origin;
+}
+