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/Nuke/NukeComponent.cs

@@ -1,7 +1,9 @@
 using Content.Shared.Containers.ItemSlots;
+using Content.Shared.Explosion;
 using Content.Shared.Nuke;
 using Content.Shared.Sound;
 using Robust.Shared.Audio;
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype;
 
 namespace Content.Server.Nuke
 {
@@ -36,13 +38,6 @@ namespace Content.Server.Nuke
         [DataField("diskSlot")]
         public ItemSlot DiskSlot = new();
 
-        /// <summary>
-        ///     Annihilation radius in which  all human players will be gibed
-        /// </summary>
-        [DataField("blastRadius")]
-        [ViewVariables(VVAccess.ReadWrite)]
-        public int BlastRadius = 200;
-
         /// <summary>
         ///     After this time nuke will play last alert sound
         /// </summary>
@@ -67,6 +62,48 @@ namespace Content.Server.Nuke
         [DataField("disarmSound")]
         public SoundSpecifier DisarmSound = new SoundPathSpecifier("/Audio/Misc/notice2.ogg");
 
+        // These datafields here are duplicates of those in explosive component. But I'm hesitant to use explosive
+        // component, just in case at some point, somehow, when grenade crafting added in someone manages to wire up a
+        // proximity trigger or something to the nuke and set it off prematurely. I want to make sure they MEAN to set of
+        // the nuke.
+        #region ExplosiveComponent
+        /// <summary>
+        ///     The explosion prototype. This determines the damage types, the tile-break chance, and some visual
+        ///     information (e.g., the light that the explosion gives off).
+        /// </summary>
+        [ViewVariables(VVAccess.ReadWrite)]
+        [DataField("explosionType", required: true, customTypeSerializer: typeof(PrototypeIdSerializer<ExplosionPrototype>))]
+        public string ExplosionType = default!;
+
+        /// <summary>
+        ///     The maximum intensity the explosion can have on a single time. This limits the maximum damage and tile
+        ///     break chance the explosion can achieve at any given location.
+        /// </summary>
+        [ViewVariables(VVAccess.ReadWrite)]
+        [DataField("maxIntensity")]
+        public float MaxIntensity = 100;
+
+        /// <summary>
+        ///     How quickly the intensity drops off as you move away from the epicenter.
+        /// </summary>
+        [ViewVariables(VVAccess.ReadWrite)]
+        [DataField("intensitySlope")]
+        public float IntensitySlope = 5;
+
+        /// <summary>
+        ///     The total intensity of this explosion. The radius of the explosion scales like the cube root of this
+        ///     number (see <see cref="ExplosionSystem.RadiusToIntensity"/>).
+        /// </summary>
+        [ViewVariables(VVAccess.ReadWrite)]
+        [DataField("totalIntensity")]
+        public float TotalIntensity = 100000;
+
+        /// <summary>
+        ///     Avoid somehow double-triggering this explosion.
+        /// </summary>
+        public bool Exploded;
+        #endregion
+
         /// <summary>
         ///     Time until explosion in seconds.
         /// </summary>

Content.Server/Nuke/NukeSystem.cs

@@ -1,10 +1,10 @@
 using Content.Server.Chat.Managers;
 using Content.Server.Construction.Components;
 using Content.Server.Coordinates.Helpers;
+using Content.Server.Explosion.EntitySystems;
 using Content.Server.Popups;
 using Content.Server.UserInterface;
 using Content.Shared.Audio;
-using Content.Shared.Body.Components;
 using Content.Shared.Containers.ItemSlots;
 using Content.Shared.Nuke;
 using Content.Shared.Sound;
@@ -19,7 +19,7 @@ namespace Content.Server.Nuke
         [Dependency] private readonly NukeCodeSystem _codes = default!;
         [Dependency] private readonly ItemSlotsSystem _itemSlots = default!;
         [Dependency] private readonly PopupSystem _popups = default!;
-        [Dependency] private readonly EntityLookupSystem _lookup = default!;
+        [Dependency] private readonly ExplosionSystem _explosions = default!;
         [Dependency] private readonly IChatManager _chat = default!;
 
         public override void Initialize()
@@ -388,19 +388,16 @@ namespace Content.Server.Nuke
             if (!Resolve(uid, ref component, ref transform))
                 return;
 
-            // gib anyone in a blast radius
-            // its lame, but will work for now
-            var pos = transform.Coordinates;
-            var ents = _lookup.GetEntitiesInRange(pos, component.BlastRadius);
-            foreach (var ent in ents)
-            {
-                var entUid = ent;
-                if (!EntityManager.EntityExists(entUid))
-                    continue;
+            if (component.Exploded)
+                return;
 
-                if (EntityManager.TryGetComponent(entUid, out SharedBodyComponent? body))
-                    body.Gib();
-            }
+            component.Exploded = true;
+
+            _explosions.QueueExplosion(uid,
+                component.ExplosionType,
+                component.TotalIntensity,
+                component.IntensitySlope,
+                component.MaxIntensity);
 
             EntityManager.DeleteEntity(uid);
         }