Radiation rework (#10970)

Content.Shared/CCVar/CCVars.cs

@@ -623,6 +623,36 @@ namespace Content.Shared.CCVar
         public static readonly CVarDef<int> ExplosionSingleTickAreaLimit =
             CVarDef.Create("explosion.single_tick_area_limit", 400, CVar.SERVERONLY);
 
+        /*
+         * Radiation
+         */
+
+        /// <summary>
+        ///     What is the smallest radiation dose in rads that can be received by object.
+        ///     Extremely small values may impact performance.
+        /// </summary>
+        public static readonly CVarDef<float> RadiationMinIntensity =
+            CVarDef.Create("radiation.min_intensity", 0.1f, CVar.SERVERONLY);
+
+        /// <summary>
+        ///     Rate of radiation system update in seconds.
+        /// </summary>
+        public static readonly CVarDef<float> RadiationGridcastUpdateRate =
+            CVarDef.Create("radiation.gridcast.update_rate", 1.0f, CVar.SERVERONLY);
+
+        /// <summary>
+        ///     If both radiation source and receiver are placed on same grid, ignore grids between them.
+        ///     May get inaccurate result in some cases, but greatly boost performance in general.
+        /// </summary>
+        public static readonly CVarDef<bool> RadiationGridcastSimplifiedSameGrid =
+            CVarDef.Create("radiation.gridcast.simplified_same_grid", true, CVar.SERVERONLY);
+
+        /// <summary>
+        ///     Max distance that radiation ray can travel in meters.
+        /// </summary>
+        public static readonly CVarDef<float> RadiationGridcastMaxDistance =
+            CVarDef.Create("radiation.gridcast.max_distance", 50f, CVar.SERVERONLY);
+
         /*
          * Admin logs
          */