Added interaction, hand, rigidbody dragging, picking up hammer

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;
+        }
+    }
+}

Assets/Plugins/Interaction/Runtime/Rigidbody/DragRigidbody.cs.meta

@@ -0,0 +1,11 @@
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+guid: e26630301387ce5469cfa0fb478b201b
+MonoImporter:
+  externalObjects: {}
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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() { }
+    }
+}

Assets/Plugins/Interaction/Runtime/Rigidbody/RigidbodyInteractable.cs.meta

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