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Assets/Artists/Scripts/Placement/AssetablePlacement.cs

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+using System;
+using System.Collections;
+using System.Collections.Generic;
+using BITKit;
+using Unity.Mathematics;
+using UnityEngine;
+
+namespace BITFALL.Placement
+{
+	[Serializable]
+	public class IsPlaceable:IProperty
+	{
+		[SerializeField] private UnityPlacementObject placementObject;
+		public IPlacementObject PlacementObject => placementObject;
+	}
+	public class AssetablePlacement : AssetableItem,IPlacementObject
+	{
+		[SerializeField] private UnityPlacementObject placementObject;
+		public IPlacementObject Object => placementObject;
+		public float PositionIncrement => Object.PositionIncrement;
+		public int RotationIncrement => Object.RotationIncrement;
+		public int3 Size=>placementObject.Size;
+		public IPlacementObject CreateInstance() => Instantiate(placementObject);
+	}
+
+}

Assets/Artists/Scripts/Placement/BITFALL.Placement.Runtime.asmdef

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+{
+    "name": "BITFALL.Placement.Runtime",
+    "rootNamespace": "",
+    "references": [
+        "GUID:14fe60d984bf9f84eac55c6ea033a8f4",
+        "GUID:87bea3a21c744b1478660b70494160ba",
+        "GUID:a83bfc00a1ad8e74981b456e6c50ed4e",
+        "GUID:d525ad6bd40672747bde77962f1c401e",
+        "GUID:49b49c76ee64f6b41bf28ef951cb0e50",
+        "GUID:677cd05ca06c46b4395470200b1acdad",
+        "GUID:30cdc242b1ac6a944a460f4ab0b77b88",
+        "GUID:d8b63aba1907145bea998dd612889d6b"
+    ],
+    "includePlatforms": [],
+    "excludePlatforms": [],
+    "allowUnsafeCode": false,
+    "overrideReferences": false,
+    "precompiledReferences": [],
+    "autoReferenced": true,
+    "defineConstraints": [],
+    "versionDefines": [],
+    "noEngineReferences": false
+}

Assets/Artists/Scripts/Placement/UnityPlacementObject.cs

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+using System.Collections;
+using System.Collections.Generic;
+using Unity.Mathematics;
+using UnityEngine;
+
+namespace BITFALL.Placement
+{
+	public class UnityPlacementObject : MonoBehaviour,IPlacementObject
+	{
+		[SerializeField] private int3 size;
+		[SerializeField] private float positionIncrement = 1;
+		[SerializeField] private int rotationIncrement = 15;
+		public float PositionIncrement => positionIncrement;
+		public int RotationIncrement => rotationIncrement;
+		public int3 Size => size;
+		public IPlacementObject CreateInstance()=>
+			Instantiate(this);
+	}
+
+}

Assets/Artists/Scripts/Placement/UnityPlacementService.cs

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+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using UnityEngine;
+
+namespace BITFALL.Placement
+{
+	[Serializable]
+	public sealed class UnityPlacementServiceSingleton:PlacementServiceImplementation
+	{
+		protected override IPlacementService _placementServiceImplementation => UnityPlacementService.Singleton;
+	}
+	public class UnityPlacementService : MonoBehaviour,IPlacementService
+	{
+		public static IPlacementService Singleton { get; private set; }
+		
+		[SerializeField] private UnityPlacementObject[] placementObjects;
+		public IPlacementObject CurrentPlacementObject { get; private set; }
+		public bool TryGetCurrentObject(out IPlacementObject placementObject)
+		{
+			placementObject = CurrentPlacementObject;
+			return placementObject != null;
+		}
+		public IPlacementObject[] PlacementObjects => placementObjects.Cast<IPlacementObject>().ToArray();
+	}
+
+}