Develop Reference

cant work out what code is needed to change scene

I have created the scenes and I want it to change scenes on death so the code should go under public override void Death():
public class player : Mover
{
private void FixedUpdate()
{
float x = Input.GetAxisRaw("Horizontal");
float y = Input.GetAxisRaw("Vertical");
UpdateMotor(new Vector3(x, y, 0));
}
public override void Death()
{
(need code here)
}
}

the code will be
SceneManager.LoadScene("OtherSceneName", LoadSceneMode.Additive);
Replace "OtherSceneName" with the scene you want to change to and choose a scene loading mode that suits your needs.

State machine for a game object in Unity doesn't seem to be working. Instead of changing from "stagger" to "idle", it just keeps moving

So I'm developing my first game in Unity currently (following a series by Mister Taft on YouTube called "Make a game like Zelda using Unity and C#" and just finished the 19th video).
I've currently got a "Log" enemy and am working on a knockback feature. I've followed the way that it is approached in the series is by creating a state machine that changes the Log's state to "stagger" for a couple of seconds, then return it to "idle" so it can change itself to "walk."
Whenever I hit the Log, however, it gets stuck in the stagger state and drifts without stopping until it hits a collider (note it doesn't change back to idle/walk even when it does hit the collider). If I can hit the Log correctly, sometimes, the player will actually also drift in the opposite direction.
Relevant code:
public class Log : Enemy {
private Rigidbody2D myRigidBody;
public Transform target;
public float chaseRadius;
public float attackRadius;
public Transform homePosition;
public Animator anim;
// Use this for initialization
void Start () {
currentState = EnemyState.idle;
myRigidBody = GetComponent<Rigidbody2D> ();
anim = GetComponent<Animator> ();
target = GameObject.FindWithTag ("Player").transform;
}
// FixedUpdate is called by physics.
void FixedUpdate () {
CheckDistance ();
}
//Log finds and walks towards Player.
void CheckDistance(){
if (Vector3.Distance (target.position, transform.position) <= chaseRadius && Vector3.Distance (target.position, transform.position) > attackRadius
&& currentState != EnemyState.stagger)
{
Vector3 temp = Vector3.MoveTowards (transform.position, target.position, moveSpeed * Time.deltaTime);
myRigidBody.MovePosition (temp);
ChangeState (EnemyState.walk);
}
}
private void ChangeState(EnemyState newState){
if (currentState != newState)
{
currentState = newState;
}
}
}
public class Knockback : MonoBehaviour {
public float thrust;
public float knockTime;
private void OnTriggerEnter2D(Collider2D other){
if (other.gameObject.CompareTag ("breakable"))
{
other.GetComponent<Pot>().Smash();
}
if(other.gameObject.CompareTag("enemy"))
{
Rigidbody2D enemy = other.GetComponent<Rigidbody2D>();
if (enemy != null)
{
enemy.GetComponent<Enemy> ().currentState = EnemyState.stagger;
Vector2 difference = enemy.transform.position - transform.position;
difference = difference.normalized * thrust;
enemy.AddForce (difference, ForceMode2D.Impulse);
StartCoroutine (KnockCo (enemy));
}
}
}
private IEnumerator KnockCo(Rigidbody2D enemy){
if (enemy != null)
{
yield return new WaitForSeconds (knockTime);
enemy.velocity = Vector2.zero;
enemy.GetComponent<Enemy>().currentState = EnemyState.idle;
}
}
}
public enum EnemyState{
idle,
walk,
attack,
stagger
}
public class Enemy : MonoBehaviour {
public EnemyState currentState;
public int enemyHealth;
public string enemyName;
public int baseAttack;
public float moveSpeed;
}
I've tried to add an else statement after the void CheckDistance in Log.cs, but that resulted in the Log having jittery movement and jumping back along its path. I'm at a loss. Any help would be greatly appreciated!

Building a camera transition for switching rooms

I'm trying to create a Zelda type camera that changes position after you reach a trigger point.
this is the code for the camera movement
public class CameraMovement : MonoBehaviour {
public Transform target;
public float smoothing;
public Vector2 maxPosition;
public Vector2 minPosition;
void LateUpdate()
{
if (transform.position != target.position)
{
Vector3 targetPosition = new Vector3(target.position.x, target.position.y, transform.position.z);
targetPosition.x = Mathf.Clamp(targetPosition.x, minPosition.x, maxPosition.x);
targetPosition.y = Mathf.Clamp(targetPosition.y, minPosition.y, maxPosition.y);
transform.position = Vector3.Lerp(transform.position, targetPosition, smoothing);
}
}
}
and this is the code for the room transition
public class RoomMove : MonoBehaviour
{
public Vector2 cameraChange;
public Vector3 playerChange;
private CameraMovement cam;
// Start is called before the first frame update
void Start()
{
cam = Camera.main.GetComponent<CameraMovement> ();
}
// Update is called once per frame
void Update()
{
}
private void OnTriggerEnter2D(Collider2D other)
{
if(other.CompareTag("Player"))
{
cam.minPosition += cameraChange;
cam.maxPosition += cameraChange;
other.transform.position += playerChange;
}
}
}
I've already tried to look up the answer in google and I found something similar but it did not work for me.

This is a little difficult due to the lack of details, info, and desire.
First make sure your setup is correct.
Does the object with RoomMove on it have a 2D collider marked trigger?
Does player have the "Player" tag on it?
Does the main camera have the movement script with the target variable set to the instance of the player? (Not a prefab, from the hierarchy)
Double check all of these first.
What you have here leads me to believe that all of your levels are side by side in one scene correct?
You could try removing the clamping and simply give each room an empty transform in the middle and when you hit the transition change the camera's target.

Unity reset Oculus position when key is pressed

I am trying to create a script that will reset (to a specific location) the HMD and controller locations whenever a key is pressed for calibration reasons. I am very new to unity so all I have been able to figure out is how to get key input.
public class resetPosition : MonoBehaviour
{
// Start is called before the first frame update
void Start()
{
}
// Update is called once per frame
void Update()
{
if (Input.GetKeyDown(KeyCode.Space))
Debug.Log("pressed");
}
}

You shouldn't directly change the position of the VRCamera.
Rather add a parent GameObject to the camera and change the position of that one instead via e.g. (assuming your script is attahced to the camera)
public class ResetPosition : MonoBehaviour
{
public Vector3 resetPosition;
private void Awake()
{
// create a new object and make it parent of this object
var parent = new GameObject("CameraParent").transform;
transform.SetParent(parent);
}
// You should use LateUpdate
// because afaik the oculus position is updated in the normal
// Update so you are sure it is already done for this frame
private void LateUpdate()
{
if (Input.GetKeyDown(KeyCode.Space))
{
Debug.Log("pressed");
// reset parent objects position
transform.parent.position = resetPosition - transform.position;
}
}
}

Throwing an object at an arch in 2D using C#

I am trying to create a 2D game where the user throws a bomb at an arch from point A(which is a fixed point) to point B(which will change constantly). My trouble comes in when I am trying to make the bomb move towards the target location, I cannot seem to get it to go where I touch. I also cannot get it to go there in an arch. Is there anyone that can assist me in solving this problem. Other help that I have researched is for a 3D situation and I have trouble converting it into a 2D model.
Below are the two scripts that are being used together.
public class PlayerController : MonoBehaviour {
public int[] distanceToThrow;
public int[] bombToThrow;
public GameObject bomb;
public Transform throwOrigin;
public Vector2 throwSpeed;
public float gravity;
//public Transform throwPointPos;
public Vector2 throwDestination;
public float flightSpeed;
public float throwTimer;
public float throwResetTimer;
public float landingTime;
public Vector2 touchPos;
private BombController theBomb;
private Rigidbody2D bombRB;
//private Camera theCamera;
// Use this for initialization
void Start () {
//theCamera = FindObjectOfType<Camera>();
theBomb = FindObjectOfType<BombController>();
bombRB = theBomb.GetComponent<Rigidbody2D>();
}
// Update is called once per frame
void Update()
{
if (throwTimer > 0)
{
throwTimer -= Time.deltaTime;
// Using a single touch as control - Letholor
}
else if (Input.touchCount > 0)
{
Touch touch = Input.GetTouch(0);
touchPos = new Vector2(touch.position.x, touch.position.y);
Debug.Log("You are touching at position: " + touchPos);
/* Ray ray = Camera.main.ScreenPointToRay(touchPos);
RaycastHit hitResult;
Physics.Raycast(ray, out hitResult);*/
Vector2 throwDestination = touchPos;
Debug.Log("Throw destination is " + throwDestination);
SendBomb(throwDestination);
}
}
public void SendBomb(Vector2 throwDestination) {
if (throwTimer > 0)
{
Debug.Log("Cooling down.");
return;
}
throwTimer = throwResetTimer;
Debug.Log("Throwing bomb to " + throwDestination);
//Instantiate(bomb, throwOrigin.position, throwOrigin.rotation);
GameObject newBomb = Instantiate(bomb, throwOrigin.position, throwOrigin.rotation);
newBomb.GetComponent<BombController>().SetThrowDestination(touchPos - throwDestination);
}
}
public class BombController : MonoBehaviour {
public int bombTimer;
public float explosionRadius;
public int resetTimer;
public bool exploded;
public Animation anim;
private Rigidbody2D bombRigidbody;
public float bombSpeed;
public float gravity;
private PlayerController thePlayer;
// Use this for initialization
void Start () {
bombRigidbody = GetComponent<Rigidbody2D>();
thePlayer = FindObjectOfType<PlayerController>();
}
// Update is called once per frame
void Update () {
}
private void OnCollisionEnter2D(Collision2D collision)
{
if (collision.gameObject.tag == "Ground" || collision.gameObject.tag == "Bomb")
{
bombRigidbody.velocity = new Vector2(0, 0);
}
}
public void Detonate()
{
anim.Play("explode");
exploded = true;
}
public void SetThrowDestination(Vector2 throwDestination)
{
bombRigidbody.velocity = throwDestination * bombSpeed;
}
}

Things to check:
Make sure your Rigidbody2D has its Gravity Scale property set to 1 and the Body Type to Dynamic.
Check you give a value to Edit -> Project Settings -> Physics 2D -> Gravity -> Y (it's in Newtons, so -9.8 sounds about right).
Since velocity should not be edited, use AddForce to make it move in the direction you want.
Make sure the direction vector is calculated as destination - origin (delta position), or in your case throwDestination - throwOrigin. Any multipliers should be applied to the direction vector (e.g. bombSpeed).
Remove any direct manipulation to velocity and let the physics engine do its thing.
All of that should make the object move in the direction you want. If it doesn't, then there's probably a problem with one of the vectors or maybe the bombSpeed is too low ("Add zeroes until it breaks"). Try setting the vector values manually and make sure they're not being modified by any other section of the code.