xenoarch inhands + a few effects (#12655)

Content.Server/Xenoarchaeology/XenoArtifacts/Effects/Systems/RandomInstrumentArtifactSystem.cs

@@ -0,0 +1,25 @@
+using Content.Server.Instruments;
+using Content.Server.Xenoarchaeology.XenoArtifacts.Effects.Components;
+using Content.Shared.Instruments;
+using Robust.Shared.Random;
+
+namespace Content.Server.Xenoarchaeology.XenoArtifacts.Effects.Systems;
+
+public sealed class RandomInstrumentArtifactSystem : EntitySystem
+{
+    [Dependency] private readonly InstrumentSystem _instrument = default!;
+    [Dependency] private readonly IRobustRandom _random = default!;
+    /// <inheritdoc/>
+    public override void Initialize()
+    {
+        SubscribeLocalEvent<RandomInstrumentArtifactComponent, ComponentStartup>(OnStartup);
+    }
+
+    private void OnStartup(EntityUid uid, RandomInstrumentArtifactComponent component, ComponentStartup args)
+    {
+        if (!TryComp<SharedInstrumentComponent>(uid, out var instrument))
+            return;
+
+        _instrument.SetInstrumentProgram(instrument, (byte) _random.Next(0, 127), 0);
+    }
+}