Holofan Projector Upstream from Nyano (#8352)

Co-authored-by: metalgearsloth <comedian_vs_clown@hotmail.com>

Content.Server/Holosign/HolosignProjectorComponent.cs

@@ -0,0 +1,33 @@
+using Robust.Shared.Prototypes;
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype;
+
+namespace Content.Server.Holosign
+{
+    [RegisterComponent]
+    public sealed class HolosignProjectorComponent : Component
+    {
+        [ViewVariables]
+        [DataField("maxCharges")]
+        public int MaxCharges = 6;
+
+        [ViewVariables(VVAccess.ReadWrite), DataField("charges")]
+        public int CurrentCharges = 6;
+
+        [ViewVariables(VVAccess.ReadWrite)]
+        [DataField("signProto", customTypeSerializer:typeof(PrototypeIdSerializer<EntityPrototype>))]
+        public string SignProto = "HolosignWetFloor";
+
+        /// <summary>
+        /// When the holosign was last used.
+        /// </summary>
+        [ViewVariables(VVAccess.ReadWrite), DataField("lastUse")]
+        public TimeSpan LastUsed = TimeSpan.Zero;
+
+        /// <summary>
+        /// How long it takes for 1 charge to accumulate.
+        /// </summary>
+        [ViewVariables(VVAccess.ReadWrite)]
+        [DataField("rechargeTime")]
+        public TimeSpan RechargeTime = TimeSpan.FromSeconds(30);
+    }
+}