Beam Component and Lightning Component (#10196)

Content.Shared/Lightning/SharedLightningSystem.cs

@@ -0,0 +1,19 @@
+using Robust.Shared.Random;
+
+namespace Content.Shared.Lightning;
+
+public abstract class SharedLightningSystem : EntitySystem
+{
+    [Dependency] private readonly IRobustRandom _random = default!;
+
+    /// <summary>
+    /// Picks a random sprite state for the lightning. It's just data that gets passed to the <see cref="BeamComponent"/>
+    /// </summary>
+    /// <returns>Returns a string "lightning_" + the chosen random number.</returns>
+    public string LightningRandomizer()
+    {
+        //When the lightning is made with TryCreateBeam, spawns random sprites for each beam to make it look nicer.
+        var spriteStateNumber = _random.Next(1, 12);
+        return ("lightning_" + spriteStateNumber);
+    }
+}