Pretty new to VR.I took a gameobject from an intial position by grabbing.When I grab a helmet and touch my body collider it hides the helmet.So next I may pick glasses and apply it to my body(Hides the GameObject).Next when I put the Incorrect Helmet the first helmet should go back to its initial position and should be seen in the scene.Similarily there are many GameObjects in the scene
private void OnTriggerEnter(Collider other)
{
if (other.gameObject.tag == "Helmet")
{
HideGameObject();
}
if (other.gameObject.tag == "Glasses")
{
HideGameObject();
}
if (other.gameObject.tag == "EarMuff")
{
HideGameObject();
}
if (other.gameObject.tag == "IncorrectHelmet")
{
HideGameObject();
}
if (other.gameObject.tag == "IncorrectGlasses")
{
HideGameObject();
}
if (other.gameObject.tag == "IncorrectEarMuff")
{
HideGameObject();
sendPickValues.Invoke(2, 0);
}
}
//Another script to set the GameObjects position
public class BackToPosition : MonoBehaviour
{
private Vector3 initialPosition;
private Quaternion initialRotation;
GameObject prevObject;
GameObject currObject;
// Start is called before the first frame update
void Start()
{
initialPosition = transform.position;
initialRotation = transform.rotation;
}
// Update is called once per frame
void Update()
{
}
public void BackToInitialPosition()
{
Debug.Log("Entered");
transform.position = initialPosition;
transform.rotation = initialRotation;
}
}
I am not trying to set the previous grabbed object to initial position.I may select wrong helmet first and pick many other matching gameobjects and later change to correct helmet.At that time first helmet should go to initial position.
This is a script that I use in SteamVR to grab and release a boat's rudder handle but it should be usable for you too:
[RequireComponent(typeof(Interactable))]
public class HandAttacher : MonoBehaviour
{
public UnityEvent OnGrab;
public UnityEvent OnRelease;
public UnityEvent OnHandEnter;
public UnityEvent OnHandLeave;
private Interactable interactable;
void Awake()
{
interactable = GetComponent<Interactable>();
}
/// this magic method is called by hand while hovering
protected virtual void HandHoverUpdate(Hand hand)
{
GrabTypes startingGrabType = hand.GetGrabStarting();
if (interactable.attachedToHand == null && startingGrabType != GrabTypes.None)
{
hand.AttachObject(gameObject, startingGrabType, Hand.AttachmentFlags.DetachFromOtherHand | Hand.AttachmentFlags.ParentToHand);
OnGrab?.Invoke();
}
}
protected virtual void OnHandHoverBegin(Hand hand)
{
OnHandEnter?.Invoke();
}
protected virtual void OnHandHoverEnd(Hand hand)
{
OnHandLeave?.Invoke();
}
protected virtual void HandAttachedUpdate(Hand hand)
{
if (hand.IsGrabEnding(gameObject))
{
hand.DetachObject(gameObject);
OnRelease?.Invoke();
}
}
}
Basically it creates Unity Events that you can add Listeners to in the Editor's Inspector window, or in code.
So in your use case, I would add a listener to OnRelease, and reset the GameObject's position and rotation to whatever it was before.
I tried using BackToPosition or something similar in Update comparing the original position to its current to reset the object's position, and the object keeps resetting on a loop instead of resetting to its original position and stopping.
Related
I created a transparent cube trigger and I placed it in front of closed doors, so whenever the player walks near the door a message appears saying "this door is locked".
However, I want the message to be gone whenever the player is Not pointing to the door. currently, it shows even when I turn around, the player needs to walk away from the door to make the message disappear.
Here is my code:
public class DoorsTrigger : MonoBehaviour
{
public GameObject partNameText;
private void OnTriggerEnter(Collider other)
{
if (other.CompareTag("Player"))
{
partNameText.SetActive(true);
}
}
private void OnTriggerExit(Collider other)
{
if (other.CompareTag("Player"))
{
partNameText.SetActive(false);
}
}
}
How can I modify it to achieve my goal?
Here is a simple example using Vector3.Angle() to get the direction the player is facing relative to that trigger.
public class DoorsTrigger : MonoBehaviour
{
public GameObject partNameText;
private void OnTriggerEnter(Collider other)
{
if (other.CompareTag("Player"))
{
//Assuming 'other' is the top level gameobject of the player,
// or a child of the player and facing the same direction
Vector3 dir = (this.transform.position - other.gameObject.transform.position);
//Angle will be how far to the left OR right you can look before it doesn't register
float angle = 40f;
if (Vector3.Angle(other.gameObject.transform.forward, dir) < angle) {
partNameText.SetActive(true);
}
}
}
private void OnTriggerExit(Collider other)
{
//Make sure the text is actually showing before trying to disable it again
if (other.CompareTag("Player") && partNameText.activeSelf)
{
partNameText.SetActive(false);
}
}
}
Alternatively, you can keep your trigger mostly as is, and do a ray cast from the player to see if they are looking at the door.
//Put this snippet in a function and call it inside the player's Update() loop
RaycastHit hit;
Ray ray = new Ray(this.transform.position, this.transform.forward);
if(Physics.Raycast(ray, out hit))
{
//Tag the gameObject the trigger is on with "Door"
if(hit.collider.isTrigger && hit.collider.CompareTag("Door"))
{
//Here is where you would call a function on the door trigger to activate the text.
// Or better would be to just have that code be on the player.
// That way you can avoid unnecessary calls to another gameObject just for a UI element!
}
}
I am simply trying to cut a tree down and respawn it. I am doing this simply by using timers to make the tree prefab inactive and then active.
The tree will become inactive after 1 second (1st wait timer) and then active after 2 (second wait timer).
Strangely however, the second wait timer doesn't seem to work as shown in the logs below. Any help would be great.
This is my ChopTree script:
public class ChopTree : MonoBehaviour
{
private bool touching;
private void OnTriggerEnter(Collider other)
{
Debug.Log("Touching tree");
touching = true;
Debug.Log(touching);
}
private void OnTriggerExit(Collider other)
{
Debug.Log("Not Touching tree");
touching = false;
Debug.Log(touching);
}
private void Update()
{
if (Keyboard.current.enterKey.wasPressedThisFrame)
{
if (touching == true)
{
StartCoroutine(TreeSpawner.DeleteAndRespawn());
}
}
}
}
And this is the tree spawner script:
public class TreeSpawner : MonoBehaviour
{
// Assign tree prefab.
[SerializeField]
private GameObject tree;
// Access-point for tree script.
private static TreeSpawner instance;
// Spawn the tree when the game Starts.
void Start()
{
instance = this;
}
IEnumerator Respawn(float timeToDespawn, float timeToRespawn)
{
yield return new WaitForSeconds(timeToDespawn);
Debug.Log("Deleting...");
tree.SetActive(false);
Debug.Log("Deleted...");
Debug.Log("Respawning...");
yield return new WaitForSeconds(timeToRespawn);
Debug.Log("Respawn Timer done...");
tree.SetActive(true);
Debug.Log("Respawned...");
}
public static IEnumerator DeleteAndRespawn()
{
Debug.Log("Deleting and respawning tree");
yield return instance.StartCoroutine(instance.Respawn(1f, 2f));
}
}
Here are the order of the logs:
As you can see the log to say the respawn timer is done never happens. Why is that?
I guess you have set the "tree" field to a GameObject where you have placed the TreeSpawner script. When the "tree" GameObject is inactivated...
tree.SetActive(false);
...the TreeSpawner scripts is then also stopped.
A coroutines also stops when the GameObject it is attached to is disabled with SetActive(false)
I've done it so far that when my player dies the level is restarted and I've written everything in the script but when I try it and the scene is reloaded everything is somehow extremely dark compared to before, although all settings from the camera etc. are the same and I don't know if I'm doing something wrong or if it's a bug
my Script:
public class GameManager : MonoBehaviour
{
public GameObject enemyPrefab;
// Start is called before the first frame update
void Start()
{
GameObject player = GameObject.Find("Player");
SpawnEnemy();
}
// Update is called once per frame
void Update()
{
RestartGame();
}
void RestartGame()
{
if(GameObject.Find("Player").GetComponent<PlayerMovement>().playerHealth <= 0)
{
SceneManager.LoadScene(SceneManager.GetActiveScene().name);
}
}
You need to bake your lighting inside your scene. Here are instructions on how:
Head to Window > Rendering > Lighting
Press Generate Lighting (Make sure Auto Generate is unselected)
Source
Your code has some trouble. But I'm not going to fix rotation issues. But here your working sample:
public class GameManager : MonoBehaviour {
public GameObject enemyPrefab;
// Start is called before the first frame update
void Start()
{
GameObject player = GameObject.Find("Player");
SpawnEnemy();
}
// Update is called once per frame
void Update()
{
RestartGame();
}
bool navigated = false;
void RestartGame()
{
if (!navigated)
{
if(GameObject.Find("Player").GetComponent<PlayerMovement>().playerHealth <= 0)
{
navigated = true;
SceneManager.LoadScene(SceneManager.GetActiveScene().name);
}
}
}
}
The problem is that I what to create an openable door. This door should open when the player enter the Box Collider which is connected to the door. But the problem is when the door begins to open and to rotate, Collider starts to rotate too which brings me a lot of problems with usind such an idea. I try to create EmptyObject with its Collider but I can't connect this Collider with script and OnTriggerEnter function itself. Maybe I don't understand something, who knows, I'm just a begginer. How knows how to help, please write an answer.
My code if somebody needs it:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class openDoor : MonoBehaviour {
public Vector3 Rotation_;
private int i;
public float speed;
bool opentheDoor;
bool closetheDoor;
// Use this for initialization
void Start () {
opentheDoor = false;
closetheDoor = false;
}
// Update is called once per frame
void Update () {
if (opentheDoor == true) {
this.transform.Rotate (Rotation_ * Time.deltaTime * speed);
i += 1;
if (i == 70) {
opentheDoor = false;
i = 0;
}
}
if (closetheDoor == true) {
this.transform.Rotate (-Rotation_ * Time.deltaTime * speed);
i += 1;
if (i == 70) {
closetheDoor = false;
i = 0;
}
}
}
void OnTriggerEnter (Collider other) {
if (other.gameObject.tag == "Player") { {
opentheDoor = true;
}
}
}
void OnTriggerExit (Collider other) {
if (other.gameObject.tag == "Player") {
closetheDoor = true;
}
}
}
This is how i would handle the scenerio
Take
DoorHandler.cs
public class DoorHandler : MonoBehaviour {
public Door door;
private void OnTriggerEnter(Collider other)
{
if (other.CompareTag("Player"))
{
door.OpenDoor();
}
}
}
This should be attached to Parent of the door.
Next Take
Door.cs
public class Door : MonoBehaviour {
public bool isOpened = false;
public void OpenDoor()
{
if (!isOpened)
{
isOpened = true;
Debug.Log("OPEN");
//OPEN DOOR CODE!
}
}
}
Attach this to the Door GameObject
NOTE
The hierarchy would be like DoorHandler->Door->DoorModel (where Door is just an empty gameobject pivot of the Door)
In DoorHandler GameObject attach BoxCollider and Check Mark IsTrigger.
Also Player SHOULD HAVE A RIGIDBODY (preferably Kinametic) and obviously a collider
So When Player enters the DoorHandler's Collider -> The DoorHandler's OnTriggerEnter will be triggered and finally Call the Door to OpenDoor()
Add another check in OnTriggerEnter that checks if the door is currently opening or not.
void OnTriggerEnter (Collider other) {
if (other.gameObject.tag == "Player" && !opentheDoor) {
opentheDoor = true;
}
}
attach the door to an empty object. put the trigger on the empty object. then make the ontrigger entry rotate the door, not the paent object, and the collider will remain in place.
Parent
-child(door)
-child(collider)
I am experiencing the strangest issue
I have a ray cast and when it touches a certain layer it calls my function which does a small animation.
The problem is, this only works on a single object, I have tried duplicating, copying the prefab, dragging prefab to the scene, it doesn't work.
Now I have this code below, and as you can see I have this line which allows me to access the script on public PlatformFall platfall; so I can call platfall.startFall();
Something I've noticed, If I drag a single item from the hierarchy to the public PlatFall in Inspector then that SINGLE object works as it should. ( in that it animates when startFall is called). HOWEVER, if I drag the prefab from my project to the inspector then they do not work. (Even if debug log shows that the method is called animation does not occur).
public class CharacterController2D : MonoBehaviour {
//JummpRay Cast
public PlatformFall platfall;
// LayerMask to determine what is considered ground for the player
public LayerMask whatIsGround;
public LayerMask WhatIsFallingPlatform;
// Transform just below feet for checking if player is grounded
public Transform groundCheck;
/*....
...*/
Update(){
// Ray Casting to Fallingplatform
isFallingPlatform = Physics2D.Linecast(_transform.position, groundCheck.position, WhatIsFallingPlatform);
if (isFallingPlatform)
{
Debug.Log("Here");
platfall.startFall();
}
Debug.Log(isFallingPlatform);
}
}
Platform Script
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class PlatformFall : MonoBehaviour
{
public float fallDelay = 0.5f;
Animator anim;
Rigidbody2D rb2d;
void Awake()
{
Debug.Log("Awake Called");
anim = GetComponent<Animator>();
rb2d = GetComponent<Rigidbody2D>();
}
private void Start()
{
Debug.Log("Start Called");
}
//void OnCollisionEnter2D(Collision2D other)
//{
// Debug.Log(other.gameObject.tag);
// GameObject childObject = other.collider.gameObject;
// Debug.Log(childObject);
// if (other.gameObject.CompareTag("Feet"))
// {
// anim.SetTrigger("PlatformShake");
// Invoke("Fall", fallDelay);
// destroy the Log
// DestroyObject(this.gameObject, 4);
// }
//}
public void startFall()
{
anim.SetTrigger("PlatformShake");
Invoke("Fall", fallDelay);
Debug.Log("Fall Invoked");
// destroy the Log
// DestroyObject(this.gameObject, 4);
}
void Fall()
{
rb2d.isKinematic = false;
rb2d.mass = 15;
}
}
I understood from your post that you are always calling PlatformFall instance assigned from inspector. I think this changes will solve your problem.
public class CharacterController2D : MonoBehaviour {
private PlatformFall platfall;
private RaycastHit2D isFallingPlatform;
void FixedUpdate(){
isFallingPlatform = Physics2D.Linecast(_transform.position, groundCheck.position, WhatIsFallingPlatform);
if (isFallingPlatform)
{
Debug.Log("Here");
platfall = isFallingPlatform.transform.GetComponent<PlatformFall>();
platfall.startFall();
}
}
}
By the way, i assume that you put prefab to proper position to cast. And one more thing, you should make physics operations ,which affect your rigidbody, in FixedUpdate.