Explosion resistance is now predicted! (#30654)

* First commit

* Added Network and access

Content.Shared/Explosion/Components/ExplosionResistanceComponent.cs

@@ -0,0 +1,46 @@
+using Content.Shared.Explosion.EntitySystems;
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype.Dictionary;
+using Robust.Shared.GameStates;
+
+namespace Content.Shared.Explosion.Components;
+
+/// <summary>
+/// Component that provides entities with explosion resistance.
+/// By default this is applied when worn, but to solely protect the entity itself and
+/// not the wearer use <c>worn: false</c>.
+/// </summary>
+/// <remarks>
+///     This is desirable over just using damage modifier sets, given that equipment like bomb-suits need to
+///     significantly reduce the damage, but shouldn't be silly overpowered in regular combat.
+/// </remarks>
+[NetworkedComponent, RegisterComponent]
+[Access(typeof(SharedExplosionSystem))]
+public sealed partial class ExplosionResistanceComponent : Component
+{
+    /// <summary>
+    ///     The explosive resistance coefficient, This fraction is multiplied into the total resistance.
+    /// </summary>
+    [DataField("damageCoefficient")]
+    public float DamageCoefficient = 1;
+
+    /// <summary>
+    /// When true, resistances will be applied to the entity wearing this item.
+    /// When false, only this entity will get th resistance.
+    /// </summary>
+    [DataField, ViewVariables(VVAccess.ReadWrite)]
+    public bool Worn = true;
+
+    /// <summary>
+    /// Examine string for explosion resistance.
+    /// Passed <c>value</c> from 0 to 100.
+    /// </summary>
+    [DataField, ViewVariables(VVAccess.ReadWrite)]
+    public LocId Examine = "explosion-resistance-coefficient-value";
+
+    /// <summary>
+    ///     Modifiers specific to each explosion type for more customizability.
+    /// </summary>
+    [ViewVariables(VVAccess.ReadWrite)]
+    [DataField("modifiers", customTypeSerializer: typeof(PrototypeIdDictionarySerializer<float, ExplosionPrototype>))]
+    public Dictionary<string, float> Modifiers = new();
+}