Explosion refactor (#5230)

* Explosions

* fix yaml typo

and prevent silly UI inputs

* oop

* Use modified contains() checks

And remove IEnumerable

* Buff nuke, nerf meteors

* optimize the entity lookup stuff a bit

* fix tile (0,0) error

forgot to do an initial Enumerator.MoveNext(), so the first tile was always the "null" tile.

* remove celebration

* byte -> int

* remove diag edge tile dict

* fix one bug

but there is another

* fix the other bug

turns out dividing a ushort leads to rounding errors.  Why TF is the grid tile size even a ushort in the first place.

* improve edge map

* fix minor bug

If the initial-explosion tile had an airtight entity on it, the tile was processed twice.

* some reviews (transform queries, eye.mapid, and tilesizes in overlays)

* Apply suggestions from code review

Co-authored-by: metalgearsloth <31366439+metalgearsloth@users.noreply.github.com>

* is map paused

* GetAllTiles ignores space by default

* WriteLine -> WriteError

* First -> FirstOrDefault()

* default prototype const string

* entity query

* misc review changes

* grid edge max distance

* fix fire texture defn

bad use of type serializer and ioc-resolves

* Remove ExplosionLaunched

And allow nukes to throw items towards the outer part of an explosion

* no hot-reload disclaimer

* replace prototype id string with int index

* optimise damage a tiiiiny bit.

* entity queries

* comments

* misc mirror comments

* cvars

* admin logs

* move intensity-per-state to prototype

* update tile event to ECS event

* git mv

* Tweak rpg & minibomb

also fix merge bug

* you don't exist anymore go away

* Fix build

Co-authored-by: moonheart08 <moonheart08@users.noreply.github.com>
Co-authored-by: metalgearsloth <31366439+metalgearsloth@users.noreply.github.com>

Content.Server/Administration/UI/SpawnExplosionEui.cs

@@ -0,0 +1,39 @@
+using Content.Server.EUI;
+using Content.Server.Explosion.EntitySystems;
+using Content.Shared.Administration;
+using Content.Shared.Eui;
+using JetBrains.Annotations;
+
+namespace Content.Server.Administration.UI;
+
+/// <summary>
+///     Admin Eui for spawning and preview-ing explosions
+/// </summary>
+[UsedImplicitly]
+public sealed class SpawnExplosionEui : BaseEui
+{
+    public override void HandleMessage(EuiMessageBase msg)
+    {
+        if (msg is SpawnExplosionEuiMsg.Close)
+        {
+            Close();
+            return;
+        }
+
+        if (msg is not SpawnExplosionEuiMsg.PreviewRequest request)
+            return;
+
+        if (request.TotalIntensity <= 0 || request.IntensitySlope <= 0)
+            return;
+
+        var explosion = EntitySystem.Get<ExplosionSystem>().GenerateExplosionPreview(request);
+
+        if (explosion == null)
+        {
+            Logger.Error("Failed to generate explosion preview.");
+            return;
+        }
+
+        SendMessage(new SpawnExplosionEuiMsg.PreviewData(explosion, request.IntensitySlope, request.TotalIntensity));
+    }
+}