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146 lines
4.1 KiB
146 lines
4.1 KiB
using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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using VRTK;
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/// <summary>
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/// Class which deals with how objects behave when they are dropped
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/// </summary>
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[RequireComponent(typeof(VRTK_InteractableObject))]
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public class GravityData : MonoBehaviour
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{
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[Header("Data")]
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public string Name;
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public float Gravity;
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[Header("Visual Settings")]
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[SerializeField]
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private Transform m_planet;
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[SerializeField]
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private float m_rotationSpeed = 1;
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[SerializeField]
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private float m_bounceSpeed = 1;
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[SerializeField]
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private float m_bounceAmplitude = 0.1f;
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private Vector3 m_StartPos;
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public float m_randomOffset;
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/// <summary>
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/// The vrtk interactable object on this object
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/// </summary>
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private VRTK_InteractableObject m_interactable;
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/// <summary>
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/// Rigid body on this object
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/// </summary>
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private Rigidbody m_rigid;
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private void Awake()
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{
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//Set up some variables on start
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m_interactable = GetComponent<VRTK_InteractableObject>();
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m_rigid = GetComponentInChildren<Rigidbody>();
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m_StartPos = transform.position;
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m_randomOffset = Random.value * 20;
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}
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private void OnEnable()
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{
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RegisterEvents(true);
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}
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private void OnDisable()
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{
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RegisterEvents(false);
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}
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private void Update()
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{
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if (m_planet != null)
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{
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m_planet.Rotate(Vector3.up, 360 / m_rotationSpeed * Time.deltaTime, Space.Self);
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m_planet.localPosition = Vector3.up * Mathf.Sin(Time.time * m_bounceSpeed + m_randomOffset) * m_bounceAmplitude;
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}
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}
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private void OnGrab(object sender, InteractableObjectEventArgs args)
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{
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StopAllCoroutines();
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m_rigid.isKinematic = false;
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}
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private void OnDrop(object sender, InteractableObjectEventArgs args)
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{
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StopAllCoroutines();
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StartCoroutine(LerpToPosition(m_StartPos, Quaternion.identity, 2.0f));
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}
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private void OnSnap(object sender, InteractableObjectEventArgs args)
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{
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StopAllCoroutines();
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//m_rigid.isKinematic = true;
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}
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private void RegisterEvents(bool value)
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{
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if (value)
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{
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m_interactable.InteractableObjectSnappedToDropZone += OnSnap;
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m_interactable.InteractableObjectGrabbed += OnGrab;
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m_interactable.InteractableObjectUngrabbed += OnDrop;
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}else
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{
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m_interactable.InteractableObjectSnappedToDropZone -= OnSnap;
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m_interactable.InteractableObjectGrabbed -= OnGrab;
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m_interactable.InteractableObjectUngrabbed -= OnDrop;
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}
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}
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#region Coroutines
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/// <summary>
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/// Lerps object to a position over an amount of time
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/// </summary>
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/// <param name="SnapPos">End position</param>
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/// <param name="SnapRot">End rotation</param>
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/// <param name="snapTime">Time it takes to lerp</param>
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private IEnumerator LerpToPosition(Vector3 SnapPos, Quaternion SnapRot, float snapTime)
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{
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Debug.Log("Lerp to position");
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//This is based off of SteamVR Lerping code
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float dropTimer = -1;
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m_rigid.isKinematic = false;
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//once again this is all steamVR
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while (dropTimer < 1)
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{
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float t = Mathf.Pow(35, dropTimer);
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m_rigid.velocity = Vector3.Lerp(m_rigid.velocity, Vector3.zero, Time.fixedDeltaTime * 4);
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if (m_rigid.useGravity)
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m_rigid.AddForce(-Physics.gravity);
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transform.position = Vector3.Lerp(transform.position, SnapPos, Time.fixedDeltaTime * t * 3);
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transform.rotation = Quaternion.Slerp(transform.rotation, SnapRot, Time.fixedDeltaTime * t * 5);
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yield return new WaitForFixedUpdate();
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dropTimer += Time.fixedDeltaTime / (snapTime / 2);
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}
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//#Audio: object has just arrived at where it was lerping to
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//set correct transform in case object stuck
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m_rigid.isKinematic = true;
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transform.position = SnapPos;
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transform.rotation = SnapRot;
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}
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#endregion Coroutines
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}
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