snap to grid

Assets/Prefabs/Anchor.prefab

@@ -27,7 +27,7 @@ Transform:
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 1824742176375353076}
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
-  m_LocalPosition: {x: 0.5, y: 0.5, z: 0}
+  m_LocalPosition: {x: 0.5, y: 0.5, z: -1}
   m_LocalScale: {x: 0.5, y: 0.5, z: 1}
   m_Children: []
   m_Father: {fileID: 0}

Assets/Prefabs/Cable.prefab

@@ -26,7 +26,7 @@ Transform:
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 2180376356050932351}
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
-  m_LocalPosition: {x: 0, y: 0, z: 0}
+  m_LocalPosition: {x: 0, y: 0, z: -0.5}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
   m_Father: {fileID: 0}

Assets/Prefabs/Gates/NAND gate.prefab

@@ -32,6 +32,7 @@ Transform:
   - {fileID: 118974315500811181}
   - {fileID: 555726995092159938}
   - {fileID: 120012632069647147}
+  - {fileID: 1658337153186624383}
   m_Father: {fileID: 0}
   m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
@@ -139,6 +140,85 @@ MonoBehaviour:
   m_Script: {fileID: 11500000, guid: 419a02bb4cfe59848a1f7677a1018aa3, type: 3}
   m_Name: 
   m_EditorClassIdentifier: 
+--- !u!1 &5358625439717083291
+GameObject:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  serializedVersion: 6
+  m_Component:
+  - component: {fileID: 1658337153186624383}
+  - component: {fileID: 5623837103916873807}
+  - component: {fileID: 2169103976044701791}
+  m_Layer: 0
+  m_Name: box
+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
+  m_StaticEditorFlags: 0
+  m_IsActive: 1
+--- !u!4 &1658337153186624383
+Transform:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 5358625439717083291}
+  m_LocalRotation: {x: -0, y: -0, z: -0, w: 1}
+  m_LocalPosition: {x: 3, y: -2.5, z: 1}
+  m_LocalScale: {x: 5.5, y: 4.5, z: 1}
+  m_Children: []
+  m_Father: {fileID: 2070848596161447923}
+  m_RootOrder: 4
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+--- !u!61 &5623837103916873807
+BoxCollider2D:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 5358625439717083291}
+  m_Enabled: 1
+  m_Density: 1
+  m_Material: {fileID: 0}
+  m_IsTrigger: 1
+  m_UsedByEffector: 0
+  m_UsedByComposite: 0
+  m_Offset: {x: 0, y: 0}
+  m_SpriteTilingProperty:
+    border: {x: 0, y: 0, z: 0, w: 0}
+    pivot: {x: 0, y: 0}
+    oldSize: {x: 0, y: 0}
+    newSize: {x: 0, y: 0}
+    adaptiveTilingThreshold: 0
+    drawMode: 0
+    adaptiveTiling: 0
+  m_AutoTiling: 0
+  serializedVersion: 2
+  m_Size: {x: 1, y: 1}
+  m_EdgeRadius: 0
+--- !u!50 &2169103976044701791
+Rigidbody2D:
+  serializedVersion: 4
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 5358625439717083291}
+  m_BodyType: 1
+  m_Simulated: 1
+  m_UseFullKinematicContacts: 0
+  m_UseAutoMass: 0
+  m_Mass: 1
+  m_LinearDrag: 0
+  m_AngularDrag: 0.05
+  m_GravityScale: 0
+  m_Material: {fileID: 0}
+  m_Interpolate: 0
+  m_SleepingMode: 1
+  m_CollisionDetection: 0
+  m_Constraints: 0
 --- !u!1001 &14861468116553427
 PrefabInstance:
   m_ObjectHideFlags: 0
@@ -251,7 +331,7 @@ PrefabInstance:
       objectReference: {fileID: 0}
     - target: {fileID: 8599692958760628507, guid: d2ad1e1266d8af64ca87541a40be7e9f, type: 3}
       propertyPath: m_LocalPosition.z
-      value: 0
+      value: -1
       objectReference: {fileID: 0}
     - target: {fileID: 8599692958760628507, guid: d2ad1e1266d8af64ca87541a40be7e9f, type: 3}
       propertyPath: m_LocalRotation.w
@@ -321,7 +401,7 @@ PrefabInstance:
       objectReference: {fileID: 0}
     - target: {fileID: 8599692958760628507, guid: d2ad1e1266d8af64ca87541a40be7e9f, type: 3}
       propertyPath: m_LocalPosition.z
-      value: 0
+      value: -1
       objectReference: {fileID: 0}
     - target: {fileID: 8599692958760628507, guid: d2ad1e1266d8af64ca87541a40be7e9f, type: 3}
       propertyPath: m_LocalRotation.w
@@ -395,7 +475,7 @@ PrefabInstance:
       objectReference: {fileID: 0}
     - target: {fileID: 8599692958760628507, guid: d2ad1e1266d8af64ca87541a40be7e9f, type: 3}
       propertyPath: m_LocalPosition.z
-      value: 0
+      value: -1
       objectReference: {fileID: 0}
     - target: {fileID: 8599692958760628507, guid: d2ad1e1266d8af64ca87541a40be7e9f, type: 3}
       propertyPath: m_LocalRotation.w