Added interaction, hand, rigidbody dragging, picking up hammer

2024-11-12 22:03:42 +00:00 · 2024-08-18 13:21:38 +02:00 · 2024-08-18 13:21:38 +02:00 · d2c3dff101
commit d2c3dff101
parent 93ecc95bfa
76 changed files with 5079 additions and 4 deletions
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--- a/Assets/Plugins/Interaction.meta
+++ b/Assets/Plugins/Interaction.meta
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--- a/Assets/Plugins/Interaction/README.md
+++ b/Assets/Plugins/Interaction/README.md
@ -0,0 +1,30 @@
+#### Simple interaction
+- Add `InteractionController` component to your camera
+- You must provide an input for the controller, so add `ExampleInteractionControllerInput` to the same object. Implement your own to provide custom input.
+- Drop `Example Interaction Canvas.prefab` into the scene to get some UI feedback. If you wish to customize it, make a copy of the prefab and customize as you wish.
+- To create an interactable object, create a new script and inherit `Nothke.Interaction.Interactable`. Override `void Use(InteractableController im)` and add `Debug.Log("Hello, interactable!")`. When you click on it, you should get a message in your log.
+
+#### Holding Items
+Item handling is a separate system that builds on top of simple interaction. It is managed by the `Hands` component, residing in `Nothke.Interaction.Items` namespace, which manages taking, throwing, interacting with held items etc.
+- Add a `Hands` component to where your `InteractionController` is (you can also assign it to the handsComponent property on the InteractionController if you don't want to put it on the same object);
+- Now if you create a new script that inherits `Interactable` and also implements `ITakeable`, you will be able to take it;
+  - Note that you will have to also implement IDroppable to be able to drop the item
+
+#### Specifying interactable behavior
+Specifying interaction on interactables is handled via interfaces. For example `ITakeable` makes the interactable takeable, while `IScrollInteractable` makes it possible to implement value changing when interacting with the mouse scroll wheel. Or you can specify which item can interact with which item by implementing `IItemInHandsInteractionDependable` or `ICanInteract`. See [InteractionInterfaces.cs](Runtime/Core/InteractionInterfaces.cs) for a full list of built-in interaction interfaces.
+
+#### Default implementations
+The package also provides a few default implementations of aformentioned interfaces, which can be inherited for a much easier implmentation, such as:
+- `GenericItem` which implements holdable item in a single class, behavior of which can be configured in the inspector, or by overriding virtual functions;
+- `Slot` provides a default implementation for slotting, that is, an interactable that can accept another item. I.e. an electricity socket which can accept a plug.
+
+So, why is "low level" implmementation provided via interfaces and not via classes like these? Well, because there could be conflicting behaviors, like, what if I want to make a takeable item, which is also a slot? You can totally do that with just implmementing all the necessary interfaces.
+
+#### Interfacing with other game features
+InteractionController needs to interact with a few features that depend on your implemention in your project, such as mouse look locking. This functionality is done by providing the InteractionController with interfaces, these are located in [IntegrationInterfaces.cs](Runtime/Integration/IntegrationInterfaces.cs).
+
+#### UI
+The package provides an implementation of a simple UI, which shows an interactable's label and also shows a reticle that changes on the item behavior. Best is if you use this as an example of how to implement your own UI.
+
+#### To be changed in the future:
+- The project currently uses reticle sprites that are managed by `ReticleUI.cs` and switch according to an enum. It should either be changed to a class that can be extended, or removed completely and user should be encouraged to create their own.
--- a/Assets/Plugins/Interaction/README.md.meta
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--- a/Assets/Plugins/Interaction/Runtime.meta
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--- a/Assets/Plugins/Interaction/Runtime/Core.meta
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--- a/Assets/Plugins/Interaction/Runtime/Core/Interactable.cs
+++ b/Assets/Plugins/Interaction/Runtime/Core/Interactable.cs
@ -0,0 +1,37 @@
+using UnityEngine;
+using System.Collections;
+
+namespace Nothke.Interaction
+{
+    public class Interactable : MonoBehaviour
+    {
+        [HideInInspector]
+        public InteractionController manager;
+
+        [System.Serializable]
+        public class Info
+        {
+            public string name;
+
+            //public string descriptionShort;
+            //[Multiline()]
+            //public string description;
+        }
+
+        public Info info;
+        public virtual string Label => info.name;
+
+        public virtual void Use(InteractionController im)
+        {
+            manager = im;
+            //Debug.Log("No use");
+        }
+
+        public virtual void OnHover() { }
+        public virtual void OnDehover() { }
+
+        public virtual void StartHold() { }
+        public virtual void EndHold() { }
+        public virtual void UseHold() { }
+    }
+}
--- a/Assets/Plugins/Interaction/Runtime/Core/Interactable.cs.meta
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--- a/Assets/Plugins/Interaction/Runtime/Core/InteractableUtils.cs
+++ b/Assets/Plugins/Interaction/Runtime/Core/InteractableUtils.cs
@ -0,0 +1,36 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace Nothke.Interaction
+{
+    public static class InteractableUtils
+    {
+
+        public static Vector3 GetMousePointOnPlane(Plane plane)
+        {
+            Vector3 screenPoint = Input.mousePosition;
+
+            Ray screenRay = Camera.main.ScreenPointToRay(Input.mousePosition);
+
+            float e = 0;
+            if (plane.Raycast(screenRay, out e))
+                screenPoint.z = e;
+
+            return screenRay.GetPoint(e);
+        }
+
+        public static Vector3 GetJointAnchorInWorldSpace(Joint joint)
+        {
+            if (!joint.connectedBody) return joint.connectedAnchor;
+
+            return joint.connectedBody.transform.TransformPoint(joint.connectedAnchor);
+        }
+
+        public static bool IsNonUniform(this Transform transform)
+        {
+            Vector3 ls = transform.lossyScale;
+            return !(Mathf.Approximately(ls.x, ls.y) && Mathf.Approximately(ls.y, ls.z));
+        }
+    }
+}
--- a/Assets/Plugins/Interaction/Runtime/Core/InteractableUtils.cs.meta
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--- a/Assets/Plugins/Interaction/Runtime/Core/InteractionController.cs
+++ b/Assets/Plugins/Interaction/Runtime/Core/InteractionController.cs
@ -0,0 +1,342 @@
+//#define NEVER_MOUSE_RAY
+#define USE_FIXED_UPDATE
+
+using UnityEngine;
+using Nothke.Interaction.Items;
+using Nothke.Interaction.Integration;
+
+namespace Nothke.Interaction
+{
+    public class InteractionController : MonoBehaviour
+    {
+        Transform originTransform;
+
+        public float interactDistance = 2;
+
+        public bool rayModeToggling = false;
+        public bool mouseRay = false;
+
+        public MonoBehaviour lockableFreeLookComponent;
+        ILockableFreeLook lockableFreeLook;
+
+        Interactable interactable;
+        Interactable lastHovered;
+
+        public Interactable hovered { get; private set; }
+
+        public MonoBehaviour handsComponent;
+        public IHands hands;
+        public LayerMask raycastLayerMask = -1;
+
+        [HideInInspector]
+        public Vector3 startScreenPosition;
+
+        [System.NonSerialized]
+        public RaycastHit hit;
+        [System.NonSerialized]
+        public bool hasHit;
+
+        bool LMB;
+        bool LMBup;
+        bool rayModeToggleDown;
+
+        bool freezeDetection;
+        public bool detectionFrozen => freezeDetection;
+
+        bool isDetached;
+        bool wasMouseRayBeforeTemp;
+
+        public delegate void HoverAction(Interactable interactable);
+        public event HoverAction OnHover;
+        public delegate void DehoverAction();
+        public event DehoverAction OnDehover;
+        public delegate void RayModeChangeAction(bool enable);
+        public event RayModeChangeAction OnRayModeChange;
+
+        public bool debug;
+
+        Camera cam;
+
+        protected Ray interactionRay;
+
+        private void Awake()
+        {
+            if (handsComponent)
+            {
+                hands = handsComponent.GetComponent<IHands>();
+                hands.controller = this;
+                Debug.Assert(hands != null, "Assigned component doesn't implement IHands");
+            }
+            else
+            {
+                hands = GetComponent<IHands>();
+                if (hands != null)
+                    hands.controller = this;
+            }
+        }
+
+        void Start()
+        {
+            cam = Camera.main;
+
+            if (lockableFreeLookComponent)
+            {
+                lockableFreeLook = lockableFreeLookComponent.GetComponent<ILockableFreeLook>();
+
+                if (lockableFreeLook == null)
+                    Debug.Log("ILockableFreeLook not found on assigned component", lockableFreeLookComponent);
+            }
+
+            originTransform = transform;
+
+            Dehover();
+
+            SetRayMode(mouseRay);
+        }
+
+        public void SetTempRayOrigin(Transform t)
+        {
+            originTransform = t;
+        }
+
+        public void ResetTempRayOrigin()
+        {
+            originTransform = transform;
+        }
+
+        public void SetInput(bool interactDown, bool interactUp, bool rayModeChangeDown)
+        {
+            LMB = interactDown;
+            LMBup = interactUp;
+            this.rayModeToggleDown = rayModeChangeDown;
+        }
+
+        public void UpdateRaycast()
+        {
+            if (mouseRay)
+                interactionRay = cam.ScreenPointToRay(Input.mousePosition);
+            else
+                interactionRay = new Ray(originTransform.position, originTransform.forward);
+
+            hovered = null;
+
+            // DETECTION - Raycast
+            if (!freezeDetection)
+            {
+                GameObject hito = GetInteractingObject();
+
+                if (hito)
+                {
+                    hasHit = true;
+
+                    hovered = hito.GetComponentInParent<Interactable>();
+
+                    // Prevent interaction with items that don't want to be interacted with
+                    // unless holding a certain item
+                    if (hovered is IItemInHandsInteractionDependable)
+                    {
+                        if (hands == null)
+                            hovered = null;
+                        else
+                        if (!(hovered as IItemInHandsInteractionDependable).IsInteractableIfHolding(hands.item))
+                            hovered = null;
+                    }
+
+                    // Prevent interaction if item in hands prevents interaction
+                    if (hands != null && hands.item && hands.item is IEnvironmentInteractionPreventable eip)
+                    {
+                        if (!eip.EnvironmentInteractionIsAllowed)
+                            hovered = null;
+                    }
+
+#pragma warning disable CS0618 // Type or member is obsolete
+                    if (hovered is ISelectiveInteractable)
+                    {
+                        if (!(hovered as ISelectiveInteractable).CanInteract)
+                            hovered = null;
+                    }
+#pragma warning restore CS0618 // Type or member is obsolete
+
+                    if (hovered is ICanInteract)
+                    {
+                        if (!(hovered as ICanInteract).CanInteract(this))
+                            hovered = null;
+                    }
+
+                    if (hovered != lastHovered && hovered != null)
+                        Hover(hovered);
+                }
+                else hasHit = false;
+
+                if (hovered != lastHovered && hovered == null)
+                    Dehover();
+            }
+        }
+
+        /// <summary>
+        /// Override this to provide a custom raycaster for example. You can get the default provided ray from interactionRay.
+        /// </summary>
+        protected virtual GameObject GetInteractingObject()
+        {
+            if (Physics.Raycast(interactionRay, out hit, interactDistance, raycastLayerMask))
+                return hit.collider.gameObject;
+            else return null;
+        }
+
+        /// <summary>
+        /// Call this after you set input. Should be called in Update()
+        /// </summary>
+        public void UpdateInput()
+        {
+            // On click
+            bool interactedThisFrame = false;
+            if (hovered && LMB)
+            {
+                interactable = hovered;
+
+                if (hands != null && interactable is ITakeable)
+                {
+                    if (interactable is ISelectiveTakeable)
+                    {
+                        if ((interactable as ISelectiveTakeable).CanBeTaken())
+                            hands.Take(interactable as ITakeable);
+                    }
+                    else
+                        hands.Take(interactable as ITakeable);
+                }
+
+                interactable.Use(this);
+                interactable.StartHold();
+                interactedThisFrame = true;
+
+                startScreenPosition = Input.mousePosition;
+            }
+
+            // On scroll
+            if (hovered && hovered is IScrollInteractable scrollInteractable)
+            {
+                float scroll = Input.mouseScrollDelta.y;
+
+                if (scroll != 0)
+                    scrollInteractable.Scroll(this, scroll);
+            }
+
+            // On release
+            if (interactable && LMBup)
+            {
+                interactable.EndHold();
+                interactable = null;
+            }
+
+            lastHovered = hovered;
+
+            LMB = false;
+            LMBup = false;
+
+            if (!interactedThisFrame && hands != null)
+                hands.UpdateInteraction();
+        }
+
+        public void Recast()
+        {
+            hovered = null;
+        }
+
+        void ToggleRayMode()
+        {
+            mouseRay = !mouseRay;
+
+            SetRayMode(mouseRay);
+        }
+
+        public void FreezeDetection()
+        {
+            freezeDetection = true;
+            hovered = null;
+        }
+
+        public void UnfreezeDetection()
+        {
+            freezeDetection = false;
+            Dehover();
+            Recast();
+        }
+
+        public void SetTempMouseRay(bool tempMouse)
+        {
+            if (tempMouse)
+            {
+                wasMouseRayBeforeTemp = mouseRay;
+                SetRayMode(true);
+            }
+            else
+            {
+                if (!wasMouseRayBeforeTemp)
+                {
+                    SetRayMode(false);
+                }
+            }
+        }
+
+        public void SetRayMode(bool isMouse)
+        {
+            mouseRay = isMouse;
+
+#if !NEVER_MOUSE_RAY
+            if (mouseRay)
+            {
+                Cursor.lockState = CursorLockMode.None;
+
+                // TODO: if windows
+                //System.Windows.Forms.Cursor.Position = new System.Drawing.Point(10, 10);
+            }
+            else
+            {
+                Cursor.lockState = CursorLockMode.Locked;
+                //System.Windows.Forms.Cursor.Position = new System.Drawing.Point(Screen.width / 2, Screen.height / 2);
+            }
+#endif
+
+            if (lockableFreeLook != null)
+                lockableFreeLook.LockFreeLook(mouseRay);
+            else
+                Debug.LogWarning("No freelook lockable");
+
+            OnRayModeChange?.Invoke(mouseRay);
+
+            if (debug)
+                Debug.Log("Ray mode changed to " + (mouseRay ? " Mouse" : " Center"));
+
+            //Cursor.visible = mouseRay;
+
+            if (hands != null)
+                hands.isFixed = mouseRay;
+        }
+
+        void Hover(Interactable interactable)
+        {
+            interactable.OnHover();
+            OnHover?.Invoke(interactable);
+
+            if (debug)
+                Debug.Log("Hovered " + interactable.name);
+        }
+
+        void Dehover()
+        {
+            if (lastHovered)
+                lastHovered.OnDehover();
+
+            OnDehover?.Invoke();
+
+            if (debug)
+                Debug.Log("Dehovered");
+        }
+
+        public void LockFreeLook(bool b)
+        {
+            if (lockableFreeLook != null)
+                lockableFreeLook.LockFreeLook(b);
+        }
+    }
+}
--- a/Assets/Plugins/Interaction/Runtime/Core/InteractionController.cs.meta
+++ b/Assets/Plugins/Interaction/Runtime/Core/InteractionController.cs.meta
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--- a/Assets/Plugins/Interaction/Runtime/Core/InteractionInterfaces.cs
+++ b/Assets/Plugins/Interaction/Runtime/Core/InteractionInterfaces.cs
@ -0,0 +1,145 @@
+using UnityEngine;
+
+namespace Nothke.Interaction
+{
+    public interface IScrollInteractable
+    {
+        void Scroll(InteractionController im, float scroll);
+    }
+
+    [System.Obsolete("Use ICanInteract instead")]
+    public interface ISelectiveInteractable
+    {
+        bool CanInteract { get; }
+    }
+
+    public interface ICanInteract
+    {
+        bool CanInteract(InteractionController controller);
+    }
+}
+
+namespace Nothke.Interaction.Items
+{
+    public interface IUsable
+    {
+        void Use();
+    }
+
+    public interface IHoldUsable
+    {
+        void UseEnd();
+    }
+
+    public interface IScrollableInHand
+    {
+        void ScrollInHand(float scroll);
+    }
+
+    public interface ISecondaryUsable
+    {
+        bool AllowExamination { get; }
+        void UseSecondary();
+    }
+
+    public interface ITakeable
+    {
+        Transform Transform { get; }
+        Rigidbody Rigidbody { get; }
+        void OnTaken(IHands hands);
+    }
+
+    public interface ICustomHoldPivot
+    {
+        void GetHoldPivot(out Vector3 holdPos, out Quaternion holdRot);
+    }
+
+    public interface IHands
+    {
+        Interactable item { get; }
+        void Take(ITakeable _item);
+        void Drop();
+        void DropFixed();
+        void UpdateInteraction();
+        bool isFixed { get; set; }
+        void Place(Vector3 position, Quaternion rotation, Transform relativeParent, IItemReceivable intoSlot = null);
+        InteractionController controller { get; set; }
+    }
+
+    public interface ISelectiveTakeable
+    {
+        bool CanBeTaken();
+    }
+
+    public interface IDroppable
+    {
+        Transform Transform { get; }
+        Rigidbody Rigidbody { get; }
+        void OnDropped(IHands hands);
+        bool DelayDrop { get; }
+    }
+
+    public interface IThrowable
+    {
+        Rigidbody Rigidbody { get; }
+        bool canThrow { get; }
+        float minThrowAcceleration { get; }
+        float maxThrowAcceleration { get; }
+        void OnDropped(IHands hands);
+    }
+
+    public interface INicePlaceable
+    {
+        void GetPlacePivot(out Vector3 placePos, out Quaternion placeRot);
+        void OnStartedPlacing(IHands hands);
+        void OnNicePlaced(IHands hands);
+    }
+
+    public interface IExaminable
+    {
+        float HorizontalAngle { get; }
+        float VerticalAngle { get; }
+    }
+
+    public interface ICustomExaminePosition
+    {
+        Vector3 ExaminePosition { get; }
+    }
+
+    public interface ICustomHandPosition
+    {
+        Vector3 HandsOffset { get; }
+    }
+
+    /// <summary>
+    /// Sets position of held hand
+    /// </summary>
+    public interface IOverrideHandPositon
+    {
+        Vector3 HandPosition { get; }
+    }
+
+    /// <summary>
+    /// Adds offset translation to held hand
+    /// </summary>
+    public interface IOffsetHandPosition
+    {
+        Vector3 HandPositionOffset { get; }
+    }
+
+    /// <summary>
+    /// Implement this if you want to prevent held items interacting with other (environment) interactables
+    /// </summary>
+    public interface IEnvironmentInteractionPreventable
+    {
+        bool EnvironmentInteractionIsAllowed { get; }
+    }
+
+    /// <summary>
+    /// Implement this on interactables that you want to be interactable only if the player is holding a certain item
+    /// </summary>
+    public interface IItemInHandsInteractionDependable
+    {
+        bool IsInteractableIfHolding(Interactable item);
+    }
+}
--- a/Assets/Plugins/Interaction/Runtime/Core/InteractionInterfaces.cs.meta
+++ b/Assets/Plugins/Interaction/Runtime/Core/InteractionInterfaces.cs.meta
@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: d6a61181c3b9a7d40a2516b501df78c4
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
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--- a/Assets/Plugins/Interaction/Runtime/Example.meta
+++ b/Assets/Plugins/Interaction/Runtime/Example.meta
@ -0,0 +1,8 @@
+fileFormatVersion: 2
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--- a/Assets/Plugins/Interaction/Runtime/Example/ExampleInteractionControllerInput.cs
+++ b/Assets/Plugins/Interaction/Runtime/Example/ExampleInteractionControllerInput.cs
@ -0,0 +1,44 @@
+using UnityEngine;
+
+namespace Nothke.Interaction.Example
+{
+    public class ExampleInteractionControllerInput : MonoBehaviour
+    {
+        public InteractionController controller;
+        public Items.Hands hands;
+
+        public int interactMouseButton = 0;
+        public int rayModeChangeMouseButton = 1;
+
+        public KeyCode dropKey = KeyCode.Q;
+        public KeyCode throwKey = KeyCode.F;
+        public KeyCode examineKey = KeyCode.E;
+        public KeyCode placeKey = KeyCode.T;
+
+        private void Update()
+        {
+            controller.SetInput(
+                Input.GetMouseButtonDown(interactMouseButton),
+                Input.GetMouseButtonUp(interactMouseButton),
+                Input.GetMouseButtonDown(rayModeChangeMouseButton));
+
+            if (hands)
+            {
+                hands.SetInput(new Items.Hands.HandsInput()
+                {
+                    useDown = Input.GetMouseButtonDown(0),
+                    useUp = Input.GetMouseButtonUp(0),
+                    dropDown = Input.GetKeyDown(dropKey),
+                    throwDown = Input.GetKeyDown(throwKey),
+                    throwUp = Input.GetKeyUp(throwKey),
+                    examineDown = Input.GetKeyDown(examineKey),
+                    examineUp = Input.GetKeyUp(examineKey),
+                    placeDown = Input.GetKeyDown(placeKey)
+                });
+            }
+
+            controller.UpdateInput();
+            controller.UpdateRaycast();
+        }
+    }
+}
--- a/Assets/Plugins/Interaction/Runtime/Example/ExampleInteractionControllerInput.cs.meta
+++ b/Assets/Plugins/Interaction/Runtime/Example/ExampleInteractionControllerInput.cs.meta
@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: b8ad317191c930345bb55655eac9a932
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/Plugins/Interaction/Runtime/Integration.meta
+++ b/Assets/Plugins/Interaction/Runtime/Integration.meta
@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 220b2e02ec25d3941942cbed7225e0df
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/Plugins/Interaction/Runtime/Integration/IntegrationInterfaces.cs
+++ b/Assets/Plugins/Interaction/Runtime/Integration/IntegrationInterfaces.cs
@ -0,0 +1,23 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+using Nothke.Interaction.Items;
+
+namespace Nothke.Interaction.Integration
+{
+    public interface ILockableFreeLook
+    {
+        void LockFreeLook(bool _lock);
+    }
+
+    public interface IFocusableEffect
+    {
+        void FocusEffect(bool focus, float distance);
+    }
+
+    public interface IZoomable
+    {
+        void ZoomIn(bool _zoomIn);
+    }
+}
--- a/Assets/Plugins/Interaction/Runtime/Integration/IntegrationInterfaces.cs.meta
+++ b/Assets/Plugins/Interaction/Runtime/Integration/IntegrationInterfaces.cs.meta
@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 869628a60cfb3be4b84024737f32c758
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+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/Plugins/Interaction/Runtime/Items.meta
+++ b/Assets/Plugins/Interaction/Runtime/Items.meta
@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 3ac69220ba77db048914abfa881f6fce
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/Plugins/Interaction/Runtime/Items/GenericItem.cs
+++ b/Assets/Plugins/Interaction/Runtime/Items/GenericItem.cs
@ -0,0 +1,141 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace Nothke.Interaction.Items
+{
+    public class GenericItem : Interactable,
+        ITakeable, IDroppable, IThrowable, INicePlaceable,
+        IExaminable, ICustomHoldPivot
+    {
+        [System.Serializable]
+        public class ItemSettings
+        {
+            //public Vector3 customHoldPosition = new Vector3(0.15f, -0.15f, 0.1f);
+            public Transform holdPivot;
+
+            public Collider[] collidersToDisable;
+            public bool autoPopulateColliderListFromChildren;
+
+            public bool useCustomExaminePosition;
+            public Vector3 customExaminePosition = new Vector3(0, 0, 0.15f);
+            public float examineHorizontalAngle = 90;
+            public float examineVerticalAngle = 90;
+
+            public bool canBeThrown = true;
+            public float minThrowVelocity = 5;
+            public float maxThrowVelocity = 10;
+
+            public Transform nicePlacePivot;
+        }
+
+        public ItemSettings itemSettings;
+
+        public Transform Transform => transform;
+        public Rigidbody Rigidbody => rb;
+
+        public bool DelayDrop => false;
+
+        public float HorizontalAngle => itemSettings.examineHorizontalAngle;
+        public float VerticalAngle => itemSettings.examineVerticalAngle;
+
+        protected Rigidbody rb;
+        Collider col;
+
+        public bool canThrow => itemSettings.canBeThrown;
+        public float minThrowAcceleration => itemSettings.minThrowVelocity;
+        public float maxThrowAcceleration => itemSettings.maxThrowVelocity;
+
+        protected virtual void Awake()
+        {
+            rb = GetComponentInParent<Rigidbody>();
+            col = GetComponent<Collider>();
+
+            Debug.Assert(rb, "GenericItem has no Rigidbody", this);
+
+            if ((!itemSettings.holdPivot && transform.IsNonUniform()) ||
+                (itemSettings.holdPivot && itemSettings.holdPivot.IsNonUniform()))
+                Debug.LogError("GenericItem's scale (or its hold pivot's scale) is non-uniform, this is not allowed. Placement will be skewed.", this);
+        }
+
+        private void OnValidate()
+        {
+            if (itemSettings == null)
+                itemSettings = new ItemSettings();
+
+            if (itemSettings.autoPopulateColliderListFromChildren)
+            {
+                itemSettings.collidersToDisable = GetComponentsInChildren<Collider>(true);
+            }
+        }
+
+        public virtual void OnDropped(IHands hands)
+        {
+            SetCollisions(true);
+            FixRigidbody(false);
+        }
+
+        public virtual void OnTaken(IHands hands)
+        {
+            SetCollisions(false);
+            FixRigidbody(true);
+        }
+
+        public virtual void OnStartedPlacing(IHands hands)
+        {
+
+        }
+
+        public virtual void OnNicePlaced(IHands hands)
+        {
+            SetCollisions(true);
+            rb.isKinematic = false;
+        }
+
+        protected void SetCollisions(bool enable)
+        {
+            if (col)
+                col.enabled = enable;
+
+            foreach (Collider col in itemSettings.collidersToDisable)
+                col.enabled = enable;
+        }
+
+        public void FixRigidbody(bool fix)
+        {
+            rb.interpolation = fix ? RigidbodyInterpolation.None : RigidbodyInterpolation.Interpolate;
+            rb.isKinematic = fix;
+        }
+
+        public void GetHoldPivot(out Vector3 holdPos, out Quaternion holdRot)
+        {
+            if (!itemSettings.holdPivot)
+            {
+                holdPos = Vector3.zero;
+                holdRot = Quaternion.identity;
+            }
+            else
+            {
+                holdPos = itemSettings.holdPivot.localPosition;
+                holdRot = itemSettings.holdPivot.localRotation;
+            }
+        }
+
+        public void GetPlacePivot(out Vector3 placePos, out Quaternion placeRot)
+        {
+            if (!itemSettings.nicePlacePivot)
+            {
+                Bounds bounds = Utils.BoundsUtils.GetObjectSpaceColliderBounds(gameObject, true);
+                placePos = bounds.center;
+                placePos.y = bounds.min.y;
+                placeRot = Quaternion.identity;
+                //Debug.Log("Got bounds offset: " + placePos.y);
+            }
+            else
+            {
+                placePos = itemSettings.nicePlacePivot.localPosition;
+                placeRot = itemSettings.nicePlacePivot.localRotation;
+            }
+        }
+    }
+}
--- a/Assets/Plugins/Interaction/Runtime/Items/GenericItem.cs.meta
+++ b/Assets/Plugins/Interaction/Runtime/Items/GenericItem.cs.meta
@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 84817382e549d8b4797caa3a4891df6b
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/Plugins/Interaction/Runtime/Items/Hands.cs
+++ b/Assets/Plugins/Interaction/Runtime/Items/Hands.cs
@ -0,0 +1,579 @@
+using System.Collections.Generic;
+using Nothke.Interaction.Integration;
+using UnityEngine;
+using UnityEngine.UI;
+
+namespace Nothke.Interaction.Items
+{
+    public class Hands : MonoBehaviour, IHands
+    {
+        #region Inspector variables
+
+        public Transform hand;
+
+        public Vector3 handAimPos = new Vector3(0, 0, 0.8f);
+
+        public float examinationMouseSensitivity = 1;
+
+        [Header("Smooth taking")]
+        public bool smoothTake;
+        public float smoothMoveFactor = 0.1f;
+        public float smoothRotateRate = 10;
+
+        [Header("Throwing")]
+        public bool throwFromCenter = true;
+        public float throwUpFactor = 0.2f;
+        public float throwAngularVelocity = 10;
+        public Transform throwTransform;
+
+        public float handNoiseGain = 1;
+
+        [System.NonSerialized] public MonoBehaviour[] mouseLooks; // TODO: Remove
+        public MonoBehaviour lockableFreeLookComponent;
+        ILockableFreeLook lockableFreeLook;
+        public MonoBehaviour focusEffectComponent;
+        IFocusableEffect focusableEffect;
+
+        public bool nicePlacement;
+
+        public bool disableShadowsOnTakenObjects = true;
+
+        #endregion
+
+        #region Public properties
+
+        public bool isFixed { get; set; }
+        [System.NonSerialized] public Interactable item;
+
+        #endregion
+
+        #region Private variables
+
+        const float smoothPlaceTimeLimit = 1;
+
+        Transform itemInHands;
+
+        Vector3 handStartPos;
+        Vector3 handTargetPos;
+        Quaternion handStartRot;
+        Quaternion handTargetRot;
+
+        RaycastHit hit;
+
+        Vector3 mouseSpeed;
+        Vector3 handRefVelo;
+
+#if FOV
+        float originalFoV;
+        float FoVRefVelo;
+#endif
+
+        Interactable IHands.item => item;
+        public InteractionController controller { get; set; }
+
+        Vector3 placeTLocalPos;
+        Quaternion placeTLocalRot;
+        Vector3 placeHandOffset;
+        Quaternion placeHandRotation;
+        Transform placeT;
+        bool placing;
+        bool placingIsNice;
+        float placeStartTime;
+
+        Transform handParent;
+
+        #endregion
+
+        #region Public methods
+
+        public void Take(ITakeable _item)
+        {
+            if (itemInHands) return;
+
+            item = _item as Interactable;
+
+            if (_item.Rigidbody)
+                _item.Rigidbody.isKinematic = true;
+
+            var itemT = _item.Transform;
+
+            Vector3 targetHoldPos = Vector3.zero;
+            Quaternion targetHoldRot = Quaternion.identity;
+
+            if (item is ICustomHoldPivot)
+                (item as ICustomHoldPivot).GetHoldPivot(out targetHoldPos, out targetHoldRot);
+
+            if (smoothTake)
+            {
+                hand.transform.SetPositionAndRotation(
+                    itemT.TransformPoint(targetHoldPos),
+                    itemT.rotation * targetHoldRot);
+            }
+
+            itemT.parent = hand;
+
+            if (!smoothTake)
+            {
+                itemT.localPosition = -targetHoldPos;
+                itemT.localRotation = Quaternion.Inverse(targetHoldRot);
+            }
+
+            if (disableShadowsOnTakenObjects)
+                EnableShadowcasting(item, true);
+
+            itemInHands = _item.Transform;
+
+            _item.OnTaken(this);
+        }
+
+        public void Drop()
+        {
+            if (!itemInHands) return;
+
+            var droppable = item as IDroppable;
+
+            if (droppable == null) Debug.LogError("Attempting to drop undroppable item");
+
+            Debug.Assert(droppable != null, "Droppable is null");
+            //Debug.Assert(droppable.Rigidbody != null, "Item rigidbody is null");
+
+            if (droppable.Rigidbody)
+                droppable.Rigidbody.isKinematic = false;
+
+            itemInHands.parent = null;
+
+            if (disableShadowsOnTakenObjects)
+                EnableShadowcasting(item, true);
+
+            Debug.Log($"Dropped {item.name}");
+
+            itemInHands = null;
+            item = null;
+        }
+
+        public void DropFixed()
+        {
+            if (!itemInHands) return;
+
+            itemInHands.parent = null;
+
+            if (disableShadowsOnTakenObjects)
+                EnableShadowcasting(item, true);
+
+            Debug.Log($"Dropped fixed {item.name}");
+
+            if (item is IDroppable droppable)
+                droppable.OnDropped(this);
+
+            itemInHands = null;
+            item = null;
+        }
+
+        void EnableShadowcasting(Interactable item, bool enable)
+        {
+            Renderer[] renderers = item.transform.GetComponentsInChildren<Renderer>(); // alloc!
+            for (int i = 0; i < renderers.Length; i++)
+                renderers[i].shadowCastingMode =
+                    enable ?
+                    UnityEngine.Rendering.ShadowCastingMode.On :
+                    UnityEngine.Rendering.ShadowCastingMode.Off;
+        }
+
+        IItemReceivable placingIntoSlot;
+
+        public void Place(Vector3 position, Quaternion rotation, Transform relativeParent, IItemReceivable intoSlot = null)
+        {
+            placeT = relativeParent;
+            placeTLocalPos = position;
+            placeTLocalRot = rotation;
+            placing = true;
+
+            if (item is ICustomHoldPivot)
+                (item as ICustomHoldPivot).GetHoldPivot(out placeHandOffset, out placeHandRotation);
+            else
+            {
+                placeHandOffset = Vector3.zero;
+                placeHandRotation = Quaternion.identity;
+            }
+
+            if (item is INicePlaceable placeable)
+                placeable.OnStartedPlacing(this);
+            else if (item is ISlottable slottable)
+                slottable.OnStartedPlacing(this);
+
+            placingIsNice = placeT == null;
+            placingIntoSlot = intoSlot;
+
+            // TODO: Add movement velocity to smoothing speed
+
+            placeStartTime = Time.time;
+
+            hand.parent = null;
+        }
+
+        public void OverrideHandPositionAndRotation(Vector3 pos, Quaternion rot)
+        {
+            handTargetPos = pos;
+            handTargetRot = rot;
+        }
+
+        public void SetHandVelocity(Vector3 velo)
+        {
+            handRefVelo = velo;
+        }
+
+        public void ResetOffset()
+        {
+            handTargetPos = handStartPos;
+            handTargetRot = handStartRot;
+        }
+
+        #endregion
+
+        void Awake()
+        {
+            if (hand == null)
+                hand = transform;
+
+            handStartPos = hand.transform.localPosition;
+            handTargetPos = handStartPos;
+            handStartRot = hand.transform.localRotation;
+            handTargetRot = handStartRot;
+
+            if (lockableFreeLookComponent)
+            {
+                lockableFreeLook = lockableFreeLookComponent.GetComponent<ILockableFreeLook>();
+                if (lockableFreeLook != null)
+                    Debug.Log("Found lockable free look on GameObject");
+            }
+
+            if (focusEffectComponent)
+            {
+                focusableEffect = focusEffectComponent.GetComponent<IFocusableEffect>();
+                if (focusableEffect != null)
+                    Debug.Log("Found focusable effect on GameObject");
+            }
+
+            handParent = hand.parent;
+        }
+
+        #region Update
+
+        private void Update()
+        {
+            UpdatePosition();
+        }
+
+        public void UpdatePosition()
+        {
+            // sanity check
+            if (item == null)
+                if (placing)
+                {
+                    this.EndPlacing();
+                }
+
+            float dt = Time.deltaTime;
+            mouseSpeed = new Vector3(Input.GetAxis("Mouse X"), Input.GetAxis("Mouse Y"), 0);
+
+            Vector3 targetPos = handTargetPos;
+
+            if (item is IOverrideHandPositon ohp)
+            {
+                targetPos = ohp.HandPosition;
+            }
+
+            if (item is IOffsetHandPosition offhp)
+            {
+                targetPos += offhp.HandPositionOffset;
+            }
+
+            float lrRot = (-0.5f + Mathf.PerlinNoise(Time.time * 3.34f, 0.234f)) * 5 * handNoiseGain;
+            float udRot = (-0.5f + Mathf.PerlinNoise(Time.time * 3.34f, 34.783f)) * 5 * handNoiseGain;
+
+            Quaternion targetRot = handTargetRot * Quaternion.Euler(lrRot, udRot, 0);
+
+            if (placing)
+            {
+                // Get hold pivot offset and rotation
+                Vector3 holdPos = Vector3.zero;
+                Quaternion holdRot = Quaternion.identity;
+                if (item is ICustomHoldPivot chp)
+                {
+                    chp.GetHoldPivot(out holdPos, out holdRot);
+                    float slotScale = placeT ? 1.0f / placeT.lossyScale.x : 1;
+                    holdPos = holdPos * item.transform.lossyScale.x * slotScale;
+                }
+
+                Vector3 placeWorldPos;
+                Quaternion placeWorldRot;
+
+                if (!placeT) // calcaulte in world space
+                {
+                    Matrix4x4 worldLocationMatrix = Matrix4x4.TRS(placeTLocalPos, placeTLocalRot, Vector3.one);
+                    Matrix4x4 handPivotMatrix = Matrix4x4.TRS(holdPos, holdRot, Vector3.one);
+                    Vector3 posOff = worldLocationMatrix * holdPos;
+
+                    //var mat = handPivotMatrix * worldLocationMatrix;
+                    placeWorldPos = placeTLocalPos + (Vector3)(worldLocationMatrix * holdPos);
+                    placeWorldRot = placeTLocalRot * holdRot;
+                    //placeWorldRot = mat.rotation;
+                }
+                else // if placeT, calculate in local space of target object
+                {
+                    placeWorldPos = placeT.TransformPoint(placeTLocalPos + holdPos);
+                    placeWorldRot = placeT.rotation * placeTLocalRot * holdRot;
+                }
+
+                // Calculate targets in world space
+                targetPos = placeWorldPos;
+                targetRot = placeWorldRot;
+
+                bool isCloseToTarget = Vector3.Distance(hand.position, targetPos) < 0.02f;
+                bool isAngleCloseToTarget = Quaternion.Angle(hand.rotation, targetRot) < 1;
+                bool isSafetyTimeout = Time.time - placeStartTime > smoothPlaceTimeLimit;
+
+                // END PLACING
+                if ((isCloseToTarget && isAngleCloseToTarget) || isSafetyTimeout)
+                {
+                    EndPlacing();
+                    return;
+                }
+            }
+
+            // Assign hand position and rotation:
+            if (placing) // while placing is happening, lerping is in world space, otherwise it should be in localspace
+            {
+                hand.position = Vector3.SmoothDamp(hand.position, targetPos, ref handRefVelo, smoothMoveFactor);
+                hand.rotation = Quaternion.Slerp(hand.rotation, targetRot, dt * smoothRotateRate);
+            }
+            else
+            {
+                hand.localPosition = Vector3.SmoothDamp(hand.localPosition, targetPos, ref handRefVelo, smoothMoveFactor);
+                hand.localRotation = Quaternion.Slerp(hand.localRotation, targetRot, dt * smoothRotateRate);
+            }
+
+            if (examining)
+            {
+                if (itemInHands)
+                {
+                    float x = mouseSpeed.x * examinationMouseSensitivity;
+                    float y = mouseSpeed.y * examinationMouseSensitivity;
+
+                    IExaminable examinable = item as IExaminable;
+
+                    if (examinable != null)
+                    {
+                        if (examinable.HorizontalAngle > 0)
+                            hand.Rotate(hand.transform.parent.up, x, Space.World);
+
+                        if (examinable.VerticalAngle > 0)
+                            hand.Rotate(hand.transform.parent.right, y, Space.World);
+                    }
+                }
+            }
+        }
+
+        void EndPlacing()
+        {
+            placing = false;
+
+            // Temp, make it get velocity from target:
+            handRefVelo = Vector3.zero;
+
+            var _item = itemInHands;
+            if (_item != null)
+            {
+                DropFixed();
+                _item.parent = placeT;
+                _item.localPosition = placeTLocalPos;
+                _item.localRotation = placeTLocalRot;
+            }
+            else Debug.LogError("Ending placement but item was null! This shouldn't happen");
+
+            if (placingIsNice && _item.GetComponent<Interactable>() is INicePlaceable placeable)
+                placeable.OnNicePlaced(this);
+
+            //Debug.Log("Ending placeming");
+            if (placingIntoSlot != null)
+                Debug.Log("PLACINGINTOSLOT");
+
+            if (placingIntoSlot != null && _item.GetComponent<ISlottable>() != null)
+                placingIntoSlot.SetItemInSlot(_item.GetComponent<ISlottable>());
+
+            placeT = null;
+            placingIsNice = false;
+
+            hand.parent = handParent;
+        }
+
+        //bool gunning = false;
+        //public Transform gunningThing;
+
+        public struct HandsInput
+        {
+            public bool useDown;
+            public bool useUp;
+            public bool examineDown;
+            public bool examineUp;
+            public bool throwDown;
+            public bool throwUp;
+            public bool dropDown;
+            public bool placeDown;
+        }
+
+        HandsInput input;
+
+        public void SetInput(HandsInput input)
+        {
+            this.input = input;
+        }
+
+        public void UpdateInteraction()
+        {
+            #region Unused
+            /*
+            if (input.examineDown)
+            {
+                if (!gunning)
+                {
+                    gunning = true;
+                    OverrideHandPositionAndRotation(Vector3.forward * 0.3f, Quaternion.LookRotation(-Vector3.right + Vector3.forward * 0.4f));
+                    GetComponent<InteractionController>().SetRayMode(true);
+                }
+                else
+                {
+                    gunning = false;
+                    ResetOffset();
+                    GetComponent<InteractionController>().SetRayMode(false);
+                }
+            }
+
+            gunningThing.localPosition = Vector3.Lerp(gunningThing.localPosition, !gunning ? Vector3.down : Vector3.zero, Time.deltaTime * 10);
+            */
+
+            // RMB
+            /*
+            if (input.useDown)
+            {
+                if (item is ISecondaryUsable usable)
+                {
+                    usable.UseSecondary();
+
+                    if (usable.AllowExamination)
+                        StartAim();
+                }
+                else if (item is IExaminable examinable)
+                {
+                    StartAim();
+                }
+            }*/
+            #endregion
+
+            if (placing)
+                return;
+
+            // RMB up
+            if (input.examineUp)
+            {
+                EndAim();
+            }
+            if (input.useDown)
+            {
+                if (item is IUsable usable)
+                    usable.Use();
+            }
+
+            if (input.useUp && item is IHoldUsable holdUsable)
+            {
+                holdUsable.UseEnd();
+            }
+
+            if (Input.mouseScrollDelta.y != 0)
+            {
+                if (item is IScrollableInHand scrollable)
+                    scrollable.ScrollInHand(Input.mouseScrollDelta.y);
+            }
+
+            if (input.dropDown && item is IDroppable)
+            {
+                IDroppable droppable = item as IDroppable;
+                droppable.OnDropped(this);
+
+                if (!droppable.DelayDrop)
+                    Drop();
+            }
+
+            if (input.throwDown && item is IThrowable)
+            {
+                IThrowable throwable = item as IThrowable;
+
+                if (throwFromCenter)
+                {
+                    hand.localPosition = new Vector3(0, 0, hand.localPosition.z);
+
+                    if (throwTransform)
+                        hand.position = throwTransform.position;
+                }
+
+                Drop();
+                throwable.OnDropped(this);
+
+                Vector3 throwFrw = throwTransform ? throwTransform.forward : transform.forward;
+
+                float throwSpeed = throwable.minThrowAcceleration;
+                Vector3 force = throwFrw * throwSpeed + Vector3.up * throwUpFactor;
+
+                throwable.Rigidbody.AddForce(force, ForceMode.VelocityChange);
+                throwable.Rigidbody.AddTorque(transform.forward * throwAngularVelocity, ForceMode.VelocityChange);
+            }
+        }
+
+        #endregion
+
+        #region Aiming
+
+        bool examining;
+
+        void StartAim()
+        {
+            examining = true;
+
+            if (item && item is ICustomExaminePosition cep)
+                handTargetPos = cep.ExaminePosition;
+            else
+                handTargetPos = handAimPos;
+
+            handTargetRot = Quaternion.identity;
+
+            LockFreeLook(true);
+            focusableEffect?.FocusEffect(true, handTargetPos.z);
+        }
+
+        void EndAim()
+        {
+            examining = false;
+
+            if (item && item is ICustomHandPosition chp)
+                handTargetPos = chp.HandsOffset;
+            else
+                handTargetPos = handStartPos;
+
+            handTargetRot = handStartRot;
+
+            LockFreeLook(false);
+            focusableEffect?.FocusEffect(false, 1000);
+        }
+
+        public void LockFreeLook(bool b)
+        {
+            if (mouseLooks != null)
+                for (int i = 0; i < mouseLooks.Length; i++)
+                    mouseLooks[i].enabled = !b;
+
+            lockableFreeLook?.LockFreeLook(b);
+        }
+
+        #endregion
+    }
+}
--- a/Assets/Plugins/Interaction/Runtime/Items/Hands.cs.meta
+++ b/Assets/Plugins/Interaction/Runtime/Items/Hands.cs.meta
@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: ff7c610785ea24144a1af4b97eb2ba39
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/Plugins/Interaction/Runtime/Items/Slot.cs
+++ b/Assets/Plugins/Interaction/Runtime/Items/Slot.cs
@ -0,0 +1,196 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+using Nothke.Interaction.Items;
+using Nothke.Interaction.UI;
+
+namespace Nothke.Interaction
+{
+    public class Slot : Interactable, IItemReceivable, IItemInHandsInteractionDependable
+    {
+        public Transform slotPivot;
+
+        public string slotTag;
+        public virtual string SlotTag => slotTag;
+
+        public ISlottable itemInSlot;
+        public bool Occupied => itemInSlot != null;
+
+        public override string Label
+        {
+            get
+            {
+                if (itemInSlot != null)
+                    return (itemInSlot as Interactable).Label;
+
+                return "";
+            }
+        }
+
+#if UNITY_EDITOR
+        private void Awake()
+        {
+            if (slotPivot.IsNonUniform())
+                Debug.LogError("Slot lossy scale is not uniform, this is not allowed.", slotPivot);
+        }
+#endif
+
+        public virtual bool IsInteractableIfHolding(Interactable item)
+        {
+            // if occupied and holding an item, not able to interact
+            if (item != null && itemInSlot != null)
+                return false;
+
+            // if occupied and not holding anything, able to take
+            if (item == null && itemInSlot != null)
+                return true;
+
+            var slottable = item as ISlottable;
+
+            if (slottable == null) return false;
+
+            if (!slottable.IsSlottable)
+                return false;
+
+            if (CanReceive(slottable))
+                return true;
+
+            return false;
+        }
+
+        public virtual bool CanReceive(ISlottable slottable)
+        {
+            if (itemInSlot != null) return false;
+
+            Debug.Assert(slottable != null, "CanReceive slottable is null");
+
+            if (slottable.SlotTag == SlotTag)
+                return true;
+            else return false;
+        }
+
+        public override void Use(InteractionController im)
+        {
+            manager = im;
+            SlotOrTake(im);
+        }
+
+        public void SlotOrTake(InteractionController im)
+        {
+            var hands = im.hands;
+
+            if (!hands.item && itemInSlot != null)
+            {
+                if (IsTakeable)
+                    Take();
+            }
+            else
+            if (hands.item && hands.item is ISlottable)
+            {
+                SlotItemFromHands(hands);
+            }
+        }
+
+        public virtual bool IsTakeable => true;
+
+        public void Take()
+        {
+            if (itemInSlot == null)
+            {
+                Debug.LogError("Attempting to take an item from slot but there is none");
+                return;
+            }
+
+            var takeable = itemInSlot as ITakeable;
+
+            Debug.Assert(takeable != null, "Item is slottable but not takeable", this);
+
+            OnBeforeTaken();
+
+            manager.hands.Take(takeable);
+
+            itemInSlot.OnRemovedFromSlot();
+            itemInSlot.SlottedIn = null;
+            itemInSlot = null;
+
+            manager.Recast();
+        }
+
+        public void SlotItemFromHands(IHands hands)
+        {
+            if (CanReceive(hands.item as ISlottable))
+            {
+                manager.hands.Place(Vector3.zero, Quaternion.identity, slotPivot, this);
+
+                var item = hands.item;
+
+                // if not smooth placement:
+                //itemInSlot = item as ISlottable;
+                //itemInSlot.SlottedIn = this;
+                //itemInSlot.OnSlotted();
+                //OnSlot();
+
+                // if smooth placement, hands will callback the slot:
+                (item as ISlottable).OnStartedPlacing(hands);
+            }
+        }
+
+        public bool SetItemInSlot(ISlottable item)
+        {
+            Debug.Assert(item != null, "ISlottable passed is null");
+            //Debug.Log("Slotted " + (item as Component).gameObject.name + " into " + gameObject.name, this);
+
+            if (CanReceive(item))
+            {
+                var itemT = (item as Component).transform;
+                itemT.parent = slotPivot;
+                itemT.localPosition = Vector3.zero;
+                itemT.localRotation = Quaternion.identity;
+
+                itemInSlot = item;
+                item.SlottedIn = this;
+
+                item.OnSlotted();
+                OnSlot();
+            }
+            else
+            {
+                Debug.LogError("Slot can't receive this item, tags don't match OR already holding item", item as Component);
+                return false;
+            }
+
+            if (manager)
+                manager.Recast();
+
+            return true;
+        }
+
+        public ISlottable RemoveItemFromSlot()
+        {
+            var takeable = itemInSlot as ITakeable;
+
+            OnBeforeTaken();
+
+            var _item = itemInSlot;
+            itemInSlot = null;
+
+            (_item as Component).transform.SetParent(null);
+            _item.OnRemovedFromSlot();
+            _item.SlottedIn = null;
+
+            return _item;
+        }
+
+        public virtual void OnBeforeTaken() { }
+        public virtual void OnSlot() { }
+
+        public ReticleUI.State GetCustomReticle()
+        {
+            if (itemInSlot != null)
+                return ReticleUI.State.Take;
+            else
+                return ReticleUI.State.Slot;
+        }
+    }
+}
--- a/Assets/Plugins/Interaction/Runtime/Items/Slot.cs.meta
+++ b/Assets/Plugins/Interaction/Runtime/Items/Slot.cs.meta
@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 668243f6f6db5be499bd28639ba7c669
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/Plugins/Interaction/Runtime/Items/Slots.cs
+++ b/Assets/Plugins/Interaction/Runtime/Items/Slots.cs
@ -0,0 +1,32 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+using Nothke.Interaction.Items;
+
+namespace Nothke.Interaction
+{
+    public interface ISlottable
+    {
+        string SlotTag { get; }
+
+        bool IsSlottable { get; }
+        void OnStartedPlacing(IHands hands);
+        void OnSlotted();
+
+        IItemReceivable SlottedIn { get; set; }
+
+        /// <summary>
+        /// Called before IsSlottable is nulled
+        /// </summary>
+        void OnRemovedFromSlot();
+    }
+
+    public interface IItemReceivable
+    {
+        string SlotTag { get; }
+
+        bool CanReceive(ISlottable slottable);
+        bool SetItemInSlot(ISlottable slottable);
+    }
+}
--- a/Assets/Plugins/Interaction/Runtime/Items/Slots.cs.meta
+++ b/Assets/Plugins/Interaction/Runtime/Items/Slots.cs.meta
@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 8738e65b425e1df4492657193fd2b9fd
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
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+  assetBundleVariant: 
--- a/Assets/Plugins/Interaction/Runtime/Nothke.Interaction.asmdef
+++ b/Assets/Plugins/Interaction/Runtime/Nothke.Interaction.asmdef
@ -0,0 +1,15 @@
+{
+    "name": "Nothke.Interaction",
+    "references": [
+        "GUID:6055be8ebefd69e48b49212b09b47b2f"
+    ],
+    "includePlatforms": [],
+    "excludePlatforms": [],
+    "allowUnsafeCode": false,
+    "overrideReferences": false,
+    "precompiledReferences": [],
+    "autoReferenced": true,
+    "defineConstraints": [],
+    "versionDefines": [],
+    "noEngineReferences": false
+}
--- a/Assets/Plugins/Interaction/Runtime/Nothke.Interaction.asmdef.meta
+++ b/Assets/Plugins/Interaction/Runtime/Nothke.Interaction.asmdef.meta
@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: 902337b6423063d4693a927013a507f7
+AssemblyDefinitionImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/Plugins/Interaction/Runtime/Rigidbody.meta
+++ b/Assets/Plugins/Interaction/Runtime/Rigidbody.meta
@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: fa4d84620de80c74bad75c2327724d90
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/Plugins/Interaction/Runtime/Rigidbody/DragRigidbody.cs
+++ b/Assets/Plugins/Interaction/Runtime/Rigidbody/DragRigidbody.cs
@ -0,0 +1,233 @@
+using System;
+using System.Collections;
+using UnityEngine;
+
+namespace Nothke.Interaction.Items
+{
+    /// <summary>
+    /// Use this if mass of rigidbody changes while the rigidbody is being held
+    /// </summary>
+    public interface IDragRigidbodyReleaseMassSettable
+    {
+        float ReleaseMass { get; }
+    }
+
+    public class DragRigidbody : MonoBehaviour
+    {
+        public static DragRigidbody e;
+        private void Awake() { e = this; }
+
+        public float k_Spring = 50.0f;
+        public float k_Damper = 5.0f;
+        public float k_Drag = 0f;
+        public float k_AngularDrag = 0.0f;
+        public float k_Distance = 0.0001f;
+        public bool k_AttachToCenterOfMass = false;
+
+        public float distanceLimit = 2;
+        public float clampVelocity = 2;
+        public float clampExitVelocity = 2;
+
+        public float fakeMass = 0;
+        float originalMass;
+
+        Rigidbody body;
+        private ConfigurableJoint joint;
+        RigidbodyInterpolation originalInterpolation;
+
+        public bool Holding => joint && joint.connectedBody;
+
+        public event Action OnSlipped;
+
+        public bool Hitting { private set; get; }
+
+        float hitDistance;
+
+        private void Start()
+        {
+            CreateJoint();
+        }
+
+        void CreateJoint()
+        {
+            var go = new GameObject("Rigidbody dragger");
+            body = go.AddComponent<Rigidbody>();
+            //body.rotation = Quaternion.LookRotation(transform.forward, transform.up);
+            joint = go.AddComponent<ConfigurableJoint>();
+            body.isKinematic = true;
+        }
+
+        public float GetJointDistance()
+        {
+            if (joint && joint.connectedBody)
+                return Vector3.Distance(
+                        body.position,
+                        joint.connectedBody.transform.TransformPoint(joint.connectedAnchor));
+            else
+                return 0;
+        }
+
+        Quaternion addedRotation = Quaternion.identity;
+        [NonSerialized] public bool rotate;
+        [NonSerialized] public float rotateXInput;
+        [NonSerialized] public float rotateYInput;
+
+        bool overrideTarget = false;
+        Vector3 overrideTargetPoint;
+
+        public void OverrideTarget(Vector3 target)
+        {
+            overrideTarget = true;
+            overrideTargetPoint = target;
+        }
+
+        public void EndOverridingTarget()
+        {
+            overrideTarget = false;
+        }
+
+        public Vector3 GetFrontTargetPoint()
+        {
+            return new Ray(transform.position, transform.forward).GetPoint(hitDistance);
+        }
+
+        void FixedUpdate()
+        {
+            if (joint && joint.connectedBody)
+            {
+                //var ray = new Ray(transform.position, transform.forward);
+
+                Vector3 targetPoint = overrideTarget ? overrideTargetPoint :
+                    GetFrontTargetPoint();
+                //ray.GetPoint(hitDistance);
+
+                joint.transform.position = targetPoint;
+
+                //joint.connectedBody.velocity = Vector3.ClampMagnitude(joint.connectedBody.velocity, clampVelocity);
+                //joint.targetRotation = transform.rotation;
+                //joint.targetRotation = UnityEngine.Random.rotation;
+
+                var bodyRot = body.rotation;
+                if (rotate)
+                {
+                    float mx = rotateXInput * 10;
+                    float my = rotateYInput * 10;
+
+                    addedRotation =
+                        Quaternion.AngleAxis(mx, Vector3.up) *
+                        Quaternion.AngleAxis(my, Vector3.right) * addedRotation;
+
+
+                    //addedRotation *= Quaternion.Euler(mx * 10, 0, my * 10);
+
+                    //body.rotation = rot * addedRotation;
+                    //body.MoveRotation(rot * Quaternion.Euler(4, 0, 0));
+                    //joint.targetRotation = rot * Quaternion.Euler(4, 0, 0);
+                }
+
+                //Quaternion faceTo = Quaternion.Inverse(transform.rotation) * Quaternion.Euler(0, 90, 0);
+                //addedRotation = Quaternion.Slerp(addedRotation, faceTo, Time.deltaTime * 10);
+
+                body.rotation = transform.rotation * addedRotation;
+
+                if (GetJointDistance() > distanceLimit)
+                {
+                    Slip();
+                }
+
+                return;
+            }
+        }
+
+        public void Slip()
+        {
+            End();
+
+            if (OnSlipped != null)
+                OnSlipped();
+        }
+
+        /*
+        private void Update()
+        {
+            if (Input.GetMouseButtonUp(0) && joint && joint.connectedBody)
+                End();
+        }*/
+
+        public void Attach(RaycastHit hit, bool fixedRotation = true)
+        {
+            Attach(hit.rigidbody, hit.point, hit.distance, fixedRotation);
+        }
+
+        public void Attach(Rigidbody rigidbody, Vector3 point, float distance, bool fixedRotation)
+        {
+            if (!joint) CreateJoint();
+
+            if (fakeMass > 0)
+            {
+                originalMass = rigidbody.mass;
+                rigidbody.mass = fakeMass;
+            }
+
+            originalInterpolation = rigidbody.interpolation;
+            rigidbody.interpolation = RigidbodyInterpolation.Interpolate;
+
+            joint.transform.position = point;
+            joint.anchor = Vector3.zero;
+            joint.transform.rotation = transform.rotation;
+            //joint.targetRotation = Quaternion.identity;
+            //joint.targetRotation = Quaternion.Inverse(transform.rotation);// Quaternion.LookRotation(transform.forward, transform.up);
+
+            joint.angularXMotion = joint.angularYMotion = joint.angularZMotion
+                = fixedRotation ? ConfigurableJointMotion.Locked : ConfigurableJointMotion.Free;
+
+            JointDrive drive = new JointDrive();
+            drive.positionSpring = k_Spring;
+            drive.positionDamper = k_Damper;
+            drive.maximumForce = Mathf.Infinity;
+
+            joint.xDrive = drive;
+            joint.yDrive = drive;
+            joint.zDrive = drive;
+
+            //joint.spring = k_Spring;
+            //joint.damper = k_Damper;
+            //joint.maxDistance = k_Distance;
+            joint.connectedBody = rigidbody;
+
+            hitDistance = distance;
+        }
+
+        public void End()
+        {
+            if (!joint.connectedBody)
+                return;
+
+            if (fakeMass > 0)
+            {
+                var massSettable = joint.connectedBody.GetComponent<IDragRigidbodyReleaseMassSettable>();
+
+                if (massSettable != null)
+                {
+                    joint.connectedBody.mass = massSettable.ReleaseMass;
+                }
+                else
+                {
+                    joint.connectedBody.mass = originalMass;
+                }
+            }
+
+            joint.connectedBody.interpolation = originalInterpolation;
+
+            if (clampExitVelocity > 0)
+                joint.connectedBody.velocity =
+                    Vector3.ClampMagnitude(joint.connectedBody.velocity, clampExitVelocity);
+
+            addedRotation = Quaternion.identity;
+
+            joint.connectedBody = null;
+
+            overrideTarget = false;
+        }
+    }
+}
--- a/Assets/Plugins/Interaction/Runtime/Rigidbody/DragRigidbody.cs.meta
+++ b/Assets/Plugins/Interaction/Runtime/Rigidbody/DragRigidbody.cs.meta
@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: e26630301387ce5469cfa0fb478b201b
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/Plugins/Interaction/Runtime/Rigidbody/RigidbodyInteractable.cs
+++ b/Assets/Plugins/Interaction/Runtime/Rigidbody/RigidbodyInteractable.cs
@ -0,0 +1,63 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace Nothke.Interaction.Items
+{
+    public class RigidbodyInteractable : Interactable
+    {
+        public Rigidbody rb;
+        public bool rotateAroundPoint;
+
+        [System.NonSerialized]
+        public bool held;
+
+        private void Awake()
+        {
+            if (!rb)
+                rb = GetComponent<Rigidbody>();
+        }
+
+        public override void Use(InteractionController im)
+        {
+            base.Use(im);
+
+            DragRigidbody.e.Attach(im.hit, !rotateAroundPoint);
+            DragRigidbody.e.OnSlipped += Unhold;
+        }
+
+        public override void StartHold()
+        {
+            base.StartHold();
+            manager.FreezeDetection();
+
+            held = true;
+
+            OnStartedHold();
+        }
+
+        public override void EndHold()
+        {
+            base.EndHold();
+
+            if (!held)
+                return;
+
+            DragRigidbody.e.End();
+
+            Unhold();
+        }
+
+        void Unhold()
+        {
+            manager.UnfreezeDetection();
+            manager.LockFreeLook(false);
+            DragRigidbody.e.OnSlipped -= Unhold;
+            held = false;
+            OnEndedHold();
+        }
+
+        protected virtual void OnStartedHold() { }
+        protected virtual void OnEndedHold() { }
+    }
+}
--- a/Assets/Plugins/Interaction/Runtime/Rigidbody/RigidbodyInteractable.cs.meta
+++ b/Assets/Plugins/Interaction/Runtime/Rigidbody/RigidbodyInteractable.cs.meta
@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: cf9152fd8b7951445bef5e6f0778fd53
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/Plugins/Interaction/Runtime/UI.meta
+++ b/Assets/Plugins/Interaction/Runtime/UI.meta
@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: ea81ead1b5cbf7845be57adbbba3ab98
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/Plugins/Interaction/Runtime/UI/InteractionUI.cs
+++ b/Assets/Plugins/Interaction/Runtime/UI/InteractionUI.cs
@ -0,0 +1,176 @@
+#define CENTER_TEXT
+
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+#if CENTER_TEXT
+using TMPro;
+#endif
+
+using Nothke.Interaction.Items;
+
+namespace Nothke.Interaction.UI
+{
+    public interface ICustomReticle
+    {
+        ReticleUI.State GetCustomReticle();
+    }
+
+    public interface IReticleUIOverridable
+    {
+        bool OverrideUI { get; }
+        bool ReleaseInteractionBlocking { get; }
+    }
+
+    public class InteractionUI : MonoBehaviour
+    {
+        public static InteractionUI e;
+        private void Awake()
+        {
+            e = this;
+
+            controller = GetComponent<InteractionController>();
+            if (!controller) controller = FindObjectOfType<InteractionController>();
+            if (!controller)
+            {
+                Debug.LogError("No controller found");
+                enabled = false;
+            }
+        }
+
+#if CENTER_TEXT
+        public TMP_Text centerText;
+#endif
+
+        InteractionController controller;
+
+        bool mouseRay;
+
+        RigidbodyInteractable riHovered;
+        RigidbodyInteractable ri;
+
+        IReticleUIOverridable overridable;
+
+        bool ovrr;
+
+        private void OnEnable()
+        {
+            controller.OnHover += OnHover;
+            controller.OnDehover += OnDehover;
+            controller.OnRayModeChange += OnRayModeChange;
+        }
+
+        private void OnDisable()
+        {
+            controller.OnHover -= OnHover;
+            controller.OnDehover -= OnDehover;
+            controller.OnRayModeChange += OnRayModeChange;
+        }
+
+#if CENTER_TEXT
+        public void SetText(string description)
+        {
+            centerText.enabled = true;
+            centerText.text = description;
+        }
+
+        public void HideText()
+        {
+            centerText.enabled = false;
+        }
+#endif
+
+        protected virtual void OnHover(Interactable interactable)
+        {
+            if (ovrr) return;
+
+#if CENTER_TEXT
+            if (centerText)
+            {
+                SetText(interactable.Label);
+            }
+#endif
+
+            // Interactable icon choice
+
+            if (interactable is ICustomReticle)
+            {
+                ReticleUI.state = (interactable as ICustomReticle).GetCustomReticle();
+            }
+            else if (interactable is ITakeable)
+            {
+                ReticleUI.state = ReticleUI.State.Take;
+            }
+            else if (interactable is RigidbodyInteractable)
+            {
+                ReticleUI.state = ReticleUI.State.Grab;
+
+                riHovered = interactable as RigidbodyInteractable;
+            }
+            else
+            {
+                ReticleUI.state = ReticleUI.State.Idle;
+            }
+
+            if (interactable is IReticleUIOverridable)
+            {
+                overridable = interactable as IReticleUIOverridable;
+            }
+        }
+
+        private void Update()
+        {
+            if (overridable != null)
+            {
+                ovrr = overridable.OverrideUI;
+                if (ovrr == false)
+                {
+                    OnDehover();
+                    overridable = null;
+                }
+            }
+
+            if (riHovered && riHovered.held && ri == null)
+            {
+                ri = riHovered;
+                ovrr = true;
+                ReticleUI.state = ReticleUI.State.Hold;
+            }
+
+            if (ri && !ri.held)
+            {
+                ovrr = false;
+                OnDehover();
+
+                if (controller.hovered)
+                    OnHover(controller.hovered);
+
+                ri = null;
+            }
+
+            if (controller.mouseRay)
+            {
+                ReticleUI.SetReticlePosition(Input.mousePosition);
+            }
+        }
+
+        protected virtual void OnDehover()
+        {
+            if (ovrr) return;
+
+#if CENTER_TEXT
+            if (centerText)
+                centerText.enabled = false;
+#endif
+
+            ReticleUI.state = ReticleUI.State.None;
+        }
+
+        protected virtual void OnRayModeChange(bool enable)
+        {
+            if (!enable)
+                ReticleUI.ResetReticlePosition();
+        }
+    }
+}
--- a/Assets/Plugins/Interaction/Runtime/UI/InteractionUI.cs.meta
+++ b/Assets/Plugins/Interaction/Runtime/UI/InteractionUI.cs.meta
@ -0,0 +1,11 @@
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--- a/Assets/Plugins/Interaction/Runtime/UI/ReticleUI.cs
+++ b/Assets/Plugins/Interaction/Runtime/UI/ReticleUI.cs
@ -0,0 +1,95 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+using UnityEngine.UI;
+
+namespace Nothke.Interaction.UI
+{
+    public class ReticleUI : MonoBehaviour
+    {
+        static ReticleUI e;
+        private void Awake() { e = this; }
+
+        public bool showIconForNone;
+
+        public Texture icon_none;
+        public Texture icon_generic;
+        public Texture icon_grab;
+        public Texture icon_hold;
+        public Texture icon_take;
+        public Texture icon_slot;
+
+        public Texture icon_ride;
+        public Texture icon_scroll;
+        public Texture icon_grab_knob;
+        public Texture icon_hold_knob;
+
+        public RawImage image;
+
+        public enum State { None, Idle, Grab, Hold, Take, Slot, Ride, Scroll, GrabKnob, HoldKnob }
+        public static State state;
+        static State lastState;
+
+        [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.SubsystemRegistration)]
+        private void Init()
+        {
+            state = State.None;
+            lastState = State.None;
+        }
+
+        public static void Hide()
+        {
+            state = State.None;
+            e.SetState();
+        }
+
+        public static void ResetReticlePosition()
+        {
+            if (!e) return;
+            RectTransform t = e.image.GetComponent<RectTransform>();
+            t.anchoredPosition = Vector2.zero;
+        }
+
+        public static void SetReticlePosition(Vector2 screenPos)
+        {
+            if (!e) return;
+            RectTransform t = e.image.GetComponent<RectTransform>();
+            t.position = screenPos;
+        }
+
+        private void Start()
+        {
+            SetState();
+        }
+
+        void Update()
+        {
+            if (state != lastState)
+                SetState();
+
+            lastState = state;
+        }
+
+        void SetState()
+        {
+            if (!showIconForNone)
+                image.enabled = state != State.None;
+
+            switch (state)
+            {
+                case State.None: image.texture = icon_none; break;
+                case State.Idle: image.texture = icon_generic; break;
+                case State.Grab: image.texture = icon_grab; break;
+                case State.Hold: image.texture = icon_hold; break;
+                case State.Take: image.texture = icon_take; break;
+                case State.Slot: image.texture = icon_slot; break;
+
+                case State.Ride: image.texture = icon_ride; break;
+                case State.Scroll: image.texture = icon_scroll; break;
+                case State.GrabKnob: image.texture = icon_grab_knob; break;
+                case State.HoldKnob: image.texture = icon_hold_knob; break;
+            }
+        }
+    }
+}
--- a/Assets/Plugins/Interaction/Runtime/UI/ReticleUI.cs.meta
+++ b/Assets/Plugins/Interaction/Runtime/UI/ReticleUI.cs.meta
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--- a/Assets/Plugins/Interaction/Runtime/Utils.meta
+++ b/Assets/Plugins/Interaction/Runtime/Utils.meta
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--- a/Assets/Plugins/Interaction/Runtime/Utils/BoundsUtils.cs
+++ b/Assets/Plugins/Interaction/Runtime/Utils/BoundsUtils.cs
@ -0,0 +1,113 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace Nothke.Utils
+{
+    public static class BoundsUtils
+    {
+        // static list for caching, never deallocates
+        static List<Collider> colliderCache = new List<Collider>();
+
+        public static Bounds GetObjectSpaceColliderBounds(GameObject go, bool includeInactive = false)
+        {
+            Transform t = go.transform;
+            var rootW2L = t.worldToLocalMatrix;
+
+            go.GetComponentsInChildren(includeInactive, colliderCache);
+
+            if (colliderCache.Count == 0)
+            {
+                Debug.LogError("Attempting to get bounds of the object but it has no colliders");
+                return default;
+            }
+
+            Bounds goBounds = GetBoundsInRootSpace(colliderCache[0]);
+
+            for (int i = 1; i < colliderCache.Count; i++)
+            {
+                Bounds b = GetBoundsInRootSpace(colliderCache[i]);
+                goBounds.Encapsulate(b);
+            }
+
+            return goBounds;
+
+            Bounds GetBoundsInRootSpace(Collider col)
+            {
+                Bounds b = col.GetLocalBounds();
+                Matrix4x4 l2w = col.transform.localToWorldMatrix;
+                Matrix4x4 local = rootW2L * l2w;
+                return TransformBounds(local, b);
+            }
+        }
+
+        public static Bounds GetLocalBounds(this Collider collider)
+        {
+            if (collider is BoxCollider)
+            {
+                BoxCollider box = (BoxCollider)collider;
+                return new Bounds(box.center, box.size);
+            }
+            else if (collider is SphereCollider)
+            {
+                var center = ((SphereCollider)collider).center;
+                var radius = ((SphereCollider)collider).radius;
+                Vector3 size = new Vector3(radius * 2, radius * 2, radius * 2);
+                return new Bounds(center, size);
+            }
+            else if (collider is CapsuleCollider)
+            {
+                var capsule = (CapsuleCollider)collider;
+                var r = capsule.radius;
+                var h = capsule.height;
+
+                Vector3 size;
+                switch (capsule.direction)
+                {
+                    case 0: size = new Vector3(h, r * 2, r * 2); break;
+                    case 1: size = new Vector3(r * 2, h, r * 2); break;
+                    case 2: size = new Vector3(r * 2, r * 2, h); break;
+                    default: size = default; break;
+                }
+
+                return new Bounds(capsule.center, size);
+            }
+            else if (collider is MeshCollider)
+            {
+                return ((MeshCollider)collider).sharedMesh.bounds;
+            }
+
+            Debug.LogError("Attempting to get bounds of an unknown collider type");
+            return new Bounds();
+        }
+
+        public static Bounds TransformBounds(in Matrix4x4 mat, in Bounds bounds)
+        {
+            // Find 8 corners of the bounds
+            Vector3 p0 = bounds.min;
+            Vector3 p1 = bounds.max;
+            Vector3 p2 = new Vector3(p0.x, p0.y, p1.z);
+            Vector3 p3 = new Vector3(p0.x, p1.y, p0.z);
+            Vector3 p4 = new Vector3(p1.x, p0.y, p0.z);
+            Vector3 p5 = new Vector3(p0.x, p1.y, p1.z);
+            Vector3 p6 = new Vector3(p1.x, p0.y, p1.z);
+            Vector3 p7 = new Vector3(p1.x, p1.y, p0.z);
+
+            Bounds b = new Bounds(mat * p0, Vector3.zero);
+            b.Encapsulate(mat * p1);
+            b.Encapsulate(mat * p2);
+            b.Encapsulate(mat * p3);
+            b.Encapsulate(mat * p4);
+            b.Encapsulate(mat * p5);
+            b.Encapsulate(mat * p6);
+            b.Encapsulate(mat * p7);
+
+            return b;
+        }
+
+        public static void DrawBoundsGizmos(in Bounds bounds)
+        {
+            Gizmos.DrawWireCube(bounds.center, bounds.size);
+        }
+    }
+}
--- a/Assets/Plugins/Interaction/Runtime/Utils/BoundsUtils.cs.meta
+++ b/Assets/Plugins/Interaction/Runtime/Utils/BoundsUtils.cs.meta
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--- a/Assets/Plugins/Interaction/Runtime/Utils/HandSway.cs
+++ b/Assets/Plugins/Interaction/Runtime/Utils/HandSway.cs
@ -0,0 +1,32 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace Nothke.Utils
+{
+    public class HandSway : MonoBehaviour
+    {
+        public float springRate = 10;
+        public float softClampAngle = 30;
+
+        Quaternion lastRotation;
+
+        void Update()
+        {
+            Quaternion target = transform.parent.rotation;
+
+            lastRotation = Quaternion.Slerp(lastRotation, target, Time.deltaTime * springRate);
+            lastRotation = SoftClampRotation(target, lastRotation, softClampAngle);
+
+            transform.rotation = lastRotation;
+        }
+
+        public static Quaternion SoftClampRotation(Quaternion origin, Quaternion target, float limitAngleDegrees)
+        {
+            float angle = Quaternion.Angle(origin, target);
+            float softAngle = Mathf.Atan(angle * Mathf.PI / 2 / limitAngleDegrees) / Mathf.PI * 2 * limitAngleDegrees;
+
+            return Quaternion.RotateTowards(origin, target, softAngle); // note: uses degrees
+        }
+    }
+}
--- a/Assets/Plugins/Interaction/Runtime/Utils/HandSway.cs.meta
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--- a/Assets/Plugins/Interaction/Runtime/Utils/ObjectPreviewer.cs
+++ b/Assets/Plugins/Interaction/Runtime/Utils/ObjectPreviewer.cs
@ -0,0 +1,89 @@
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace Nothke.Utils
+{
+    public static class ObjectPreviewer
+    {
+        struct Node
+        {
+            public Matrix4x4 transform;
+            public Mesh mesh;
+            public Material[] mats;
+        }
+
+        // Static cache
+        static List<MeshFilter> meshFiltersBuffer;
+        static List<Node> nodes;
+
+        /// <summary>
+        /// For performance reasons, the cache never deallocates.
+        /// So, call this to clear the cache only in the case the memory becomes a problem, such as with previewing objects with gigantic hierarchies.
+        /// (but even if they're gigantic it's quite unlikely it will be a problem)
+        /// </summary>
+        [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.SubsystemRegistration)]
+        public static void ReloadCache()
+        {
+            meshFiltersBuffer = new List<MeshFilter>();
+            nodes = new List<Node>();
+        }
+
+        /// <summary>
+        /// Assigns object for rendering. Call this only once on preview object change. Pass null to clear the object.
+        /// </summary>
+        public static void SetObject(GameObject go)
+        {
+            nodes.Clear();
+            meshFiltersBuffer.Clear();
+
+            if (go == null)
+                return;
+
+            Matrix4x4 rootW2L = go.transform.worldToLocalMatrix;
+            // We need to scale in case the root has non 1,1,1 scale
+            Matrix4x4 rootScaleMatrix = Matrix4x4.Scale(go.transform.localScale);
+            go.transform.GetComponentsInChildren(meshFiltersBuffer);
+
+            foreach (var mf in meshFiltersBuffer)
+            {
+                Mesh mesh = mf.sharedMesh;
+                var mr = mf.GetComponent<MeshRenderer>();
+
+                if (mesh == null)
+                    continue;
+
+                // Un-transform by root
+                Matrix4x4 matrix = rootW2L * mf.transform.localToWorldMatrix * rootScaleMatrix;
+
+                Material[] mats = null;
+                if (mr != null)
+                    mats = mr.sharedMaterials;
+
+                nodes.Add(new Node()
+                {
+                    mesh = mesh,
+                    transform = matrix,
+                    mats = mats,
+                });
+            }
+        }
+
+        /// <summary>
+        /// Renders the preview object set with SetObject(). Call this every frame you want the object to be drawn.
+        /// </summary>
+        /// <param name="overrideMaterial">The replacement material that the previews will be drawn with. If not assigned, it will use the original material.</param>
+        public static void Render(Vector3 position, Quaternion rotation, Vector3 scale, Material overrideMaterial = null, int renderLayer = 0)
+        {
+            Matrix4x4 previewTransform = Matrix4x4.TRS(position, rotation, scale);
+
+            foreach (var node in nodes)
+            {
+                for (int subMeshIndex = 0; subMeshIndex < node.mesh.subMeshCount; subMeshIndex++)
+                {
+                    var mat = overrideMaterial != null ? overrideMaterial : node.mats[Mathf.Clamp(subMeshIndex, 0, node.mats.Length)];
+                    Graphics.DrawMesh(node.mesh, previewTransform * node.transform, mat, renderLayer, null, subMeshIndex);
+                }
+            }
+        }
+    }
+}
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--- a/Assets/Plugins/Interaction/Sample.meta
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--- a/Assets/Plugins/Interaction/Sample/Example
+++ b/Assets/Plugins/Interaction/Sample/Example
@ -0,0 +1,7 @@
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--- a/Assets/Plugins/Interaction/package.json
+++ b/Assets/Plugins/Interaction/package.json
@ -0,0 +1,8 @@
+{
+  "name": "nothke.interaction",
+  "displayName": "Nothke's Interaction",
+  "version": "1.0.0",
+  "unity": "2018.1",
+  "description": "Interaction",
+  "type": "library"
+}
--- a/Assets/Plugins/Interaction/package.json.meta
+++ b/Assets/Plugins/Interaction/package.json.meta
@ -0,0 +1,7 @@
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--- a/Assets/Prefabs/crate_test.prefab
+++ b/Assets/Prefabs/crate_test.prefab
@ -13,6 +13,7 @@ GameObject:
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+  - component: {fileID: 2268654696567863074}
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  m_TagString: Untagged
@ -133,3 +134,20 @@ Rigidbody:
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  m_CollisionDetection: 0
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--- a/Assets/Scenes/test_conveyor_belt_character.unity
+++ b/Assets/Scenes/test_conveyor_belt_character.unity
--- a/Assets/Scripts/Interactables.meta
+++ b/Assets/Scripts/Interactables.meta
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--- a/Assets/Scripts/Interactables/InteractableTest.cs
+++ b/Assets/Scripts/Interactables/InteractableTest.cs
@ -0,0 +1,13 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using Nothke.Interaction;
+
+public class InteractableTest : Interactable
+{
+    public override void Use(InteractionController im)
+    {
+        base.Use(im);
+        Debug.Log("works!");
+    }
+}
--- a/Assets/Scripts/Interactables/InteractableTest.cs.meta
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--- a/Assets/Scripts/SlidingCrane.cs
+++ b/Assets/Scripts/SlidingCrane.cs
@ -11,15 +11,20 @@ public class SlidingCrane : MonoBehaviour
    public Transform xTransform;
    public Transform yTransform;

+
    public float yRange = 10;
    public float xRange = 5;

    public Transform testTgt;
    public Vector3 target;

+    public Rigidbody craneRail ;
+
    private void Start()
    {
        target = transform.position;
+
+
    }

    void Update()
@ -30,7 +35,6 @@ public class SlidingCrane : MonoBehaviour

        Vector3 localTarget = transform.InverseTransformPoint(target);

-
        Vector2 targetPlanar = new Vector2(localTarget.x, localTarget.z);

        float xTgt = Mathf.InverseLerp(-xRange, xRange, targetPlanar.x);
--- a/Assets/Textures/hammer.png.meta
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--- a/ProjectSettings/TimeManager.asset
+++ b/ProjectSettings/TimeManager.asset
@ -3,7 +3,7 @@
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+  Fixed Timestep: 0.01
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