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Assets/SteamVR/Extras/SteamVR_TestThrow.cs

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+//======= Copyright (c) Valve Corporation, All rights reserved. ===============
+using UnityEngine;
+using System.Collections;
+
+[RequireComponent(typeof(SteamVR_TrackedObject))]
+public class SteamVR_TestThrow : MonoBehaviour
+{
+	public GameObject prefab;
+	public Rigidbody attachPoint;
+
+	SteamVR_TrackedObject trackedObj;
+	FixedJoint joint;
+
+	void Awake()
+	{
+		trackedObj = GetComponent<SteamVR_TrackedObject>();
+	}
+
+	void FixedUpdate()
+	{
+		var device = SteamVR_Controller.Input((int)trackedObj.index);
+		if (joint == null && device.GetTouchDown(SteamVR_Controller.ButtonMask.Trigger))
+		{
+			var go = GameObject.Instantiate(prefab);
+			go.transform.position = attachPoint.transform.position;
+
+			joint = go.AddComponent<FixedJoint>();
+			joint.connectedBody = attachPoint;
+		}
+		else if (joint != null && device.GetTouchUp(SteamVR_Controller.ButtonMask.Trigger))
+		{
+			var go = joint.gameObject;
+			var rigidbody = go.GetComponent<Rigidbody>();
+			Object.DestroyImmediate(joint);
+			joint = null;
+			Object.Destroy(go, 15.0f);
+
+			// We should probably apply the offset between trackedObj.transform.position
+			// and device.transform.pos to insert into the physics sim at the correct
+			// location, however, we would then want to predict ahead the visual representation
+			// by the same amount we are predicting our render poses.
+
+			var origin = trackedObj.origin ? trackedObj.origin : trackedObj.transform.parent;
+			if (origin != null)
+			{
+				rigidbody.velocity = origin.TransformVector(device.velocity);
+				rigidbody.angularVelocity = origin.TransformVector(device.angularVelocity);
+			}
+			else
+			{
+				rigidbody.velocity = device.velocity;
+				rigidbody.angularVelocity = device.angularVelocity;
+			}
+
+			rigidbody.maxAngularVelocity = rigidbody.angularVelocity.magnitude;
+		}
+	}
+}