Add Modular grenades (chemnades). (#7138)

Content.Shared/Payload/Components/ChemicalPayloadComponent.cs

@@ -0,0 +1,33 @@
+using Content.Shared.Containers.ItemSlots;
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.Payload.Components;
+
+/// <summary>
+///     Chemical payload that mixes the solutions of two drain-able solution containers when triggered.
+/// </summary>
+[RegisterComponent]
+public sealed class ChemicalPayloadComponent : Component
+{
+    [DataField("beakerSlotA", required: true)]
+    public ItemSlot BeakerSlotA = new();
+
+    [DataField("beakerSlotB", required: true)]
+    public ItemSlot BeakerSlotB = new();
+}
+
+[Serializable, NetSerializable]
+public enum ChemicalPayloadVisuals : byte
+{
+    Slots
+}
+
+[Flags]
+[Serializable, NetSerializable]
+public enum ChemicalPayloadFilledSlots : byte
+{
+    None = 0,
+    Left = 1 << 0,
+    Right = 1 << 1,
+    Both = Left | Right,
+}