Drains (#7678)

Co-authored-by: Kara <lunarautomaton6@gmail.com>

Content.Server/Fluids/Components/DrainComponent.cs

@@ -0,0 +1,39 @@
+namespace Content.Server.Fluids.Components
+{
+    [RegisterComponent]
+    public sealed class DrainComponent : Component
+    {
+        public const string SolutionName = "drainBuffer";
+
+        [DataField("accumulator")]
+        public float Accumulator = 0f;
+
+        /// <summary>
+        /// How many units per second the drain can absorb from the surrounding puddles.
+        /// Divided by puddles, so if there are 5 puddles this will take 1/5 from each puddle.
+        /// This will stay fixed to 1 second no matter what DrainFrequency is.
+        /// </summary>
+        [DataField("unitsPerSecond")]
+        public float UnitsPerSecond = 6f;
+
+        /// <summary>
+        /// How many units are ejected from the buffer per second.
+        /// </summary>
+        [DataField("unitsDestroyedPerSecond")]
+        public float UnitsDestroyedPerSecond = 1f;
+
+        /// <summary>
+        /// How many (unobstructed) tiles away the drain will
+        /// drain puddles from.
+        /// </summary>
+        [DataField("range")]
+        public float Range = 2f;
+
+        /// <summary>
+        /// How often in seconds the drain checks for puddles around it.
+        /// If the EntityQuery seems a bit unperformant this can be increased.
+        /// <summary>
+        [DataField("drainFrequency")]
+        public float DrainFrequency = 1f;
+    }
+}