Refactors radiation (#2009)

* Work on refactoring radiation.

* mmmm grayons

* fixes

* Now you can specify whether the pulse will decay or not

* whoops

* Move IRadiationAct to shared, make DamageableComponent implement it instead and add metallic resistances to walls

* General improvements, send draw and decay with state. Rename DPS to RadsPerSecond

* E N T I T Y  C O O R D I N A T E S

* Entity coordinates goood

* Remove unused using statements

* resistances: metallicResistances

* - type: Breakable moment

Co-authored-by: DrSmugleaf <DrSmugleaf@users.noreply.github.com>

Content.Shared/GameObjects/Components/Damage/DamageableComponent.cs

@@ -4,6 +4,7 @@ using System.Collections.Generic;
 using Content.Shared.Damage;
 using Content.Shared.Damage.DamageContainer;
 using Content.Shared.Damage.ResistanceSet;
+using Content.Shared.Interfaces.GameObjects.Components;
 using Robust.Shared.GameObjects;
 using Robust.Shared.Interfaces.GameObjects;
 using Robust.Shared.IoC;
@@ -19,7 +20,7 @@ namespace Content.Shared.GameObjects.Components.Damage
     /// </summary>
     [RegisterComponent]
     [ComponentReference(typeof(IDamageableComponent))]
-    public class DamageableComponent : Component, IDamageableComponent
+    public class DamageableComponent : Component, IDamageableComponent, IRadiationAct
     {
         [Dependency] private readonly IPrototypeManager _prototypeManager = default!;
 
@@ -388,5 +389,12 @@ namespace Content.Shared.GameObjects.Components.Damage
 
             Dirty();
         }
+
+        public void RadiationAct(float frameTime, SharedRadiationPulseComponent radiation)
+        {
+            var totalDamage = Math.Max((int)(frameTime * radiation.RadsPerSecond), 1);
+
+            ChangeDamage(DamageType.Radiation, totalDamage, false, radiation.Owner);
+        }
     }
 }