Develop Reference

Unity OnControllerColliderHit detecting not detecting correctly

I am trying to teleport the character when they touch a cube, but for some reason, it prints the message that it the collision is being detected, but the character's position is not changing. It works for another scenario that is almost exactly the same, but even if I put this in another script, it does not teleport the character. Here is my code:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class othercollision : MonoBehaviour
{
// Start is called before the first frame update
void Start()
{
}
// Update is called once per frame
void Update()
{
}
void OnControllerColliderHit(ControllerColliderHit hit)
{
if (hit.gameObject.name == "teleportcube")
{
gameObject.transform.position = new Vector3(-3184.53f, 20.35f, -171.585f);
Debug.Log("Collision detected");
}
}
}
Here is the script that has something similar working:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Threading;
public class detectcollision : MonoBehaviour
{
public GameObject tplocation1;
public GameObject player;
public GameObject entranceloc;
void OnControllerColliderHit(ControllerColliderHit hit)
{
//This if statement does Debug.Log the message and it also changes the player's position.
if (hit.gameObject.name == "trigger")
{
Debug.Log("triggered");
gameObject.transform.position = tplocation1.transform.position;
Thread.Sleep(7);
Application.Quit();
}
//This if statement does not change the player's position, but Debug.Logs the teleporting message.
if (hit.gameObject.name == "entrance")
{
gameObject.transform.position = new Vector3(-3184.53f, 20.35f, -171.585f);
Debug.Log("teleporting...");
}
}
}

Try to make the Vector3 beforehand as a variable or a temporary variable and then assign it to the position. If you did then maybe the values that you have entered are out of boundary somewhy, but that's unlikely, try changing them.

Why Update() doesnt set .text?

I have a Script Coin-Counter connected with a Text. Every time the Player and the Coin are colliding the coinScore decreases by 1. If I want to display the coinScore in Update() this doesn't work. Why?
using UnityEngine.UI;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class CoinScore : MonoBehaviour
{
[SerializeField] private Text coinScorer;
private int coinScore;
private int oldCoinScore;
void Update()
{
coinScorer.text = coinScore.ToString(); // This doesn't work.
oldCoinScore = coinScore;
}
private void OnTriggerEnter2D(Collider2D other)
{
if (other.gameObject.CompareTag("Player"))
{
coinScore += 1;
Destroy(gameObject);
//coinScorer.text = coinScore.ToString(); //This works.
}
}

Your collision method is destroying this game object.
There is no update to run after that.

Trying to grab a variable from one script and apply to another

I'm trying to use a UI Slider to change the movement speed for my player character using the GetComponent feature. I have everything working except apply the number(float) that I create from the movement of the slider to the variable that controls how fast the player can move.
I've used Debug.Log(); to determine that the variable I'm trying to grab from one script does not equal the other. It almost seems that they're being stored as two separate variables.
The varspeed variable keeps track of the number when I move the slider.
In script BallScript:
GameObject.Find("Canvas").GetComponent<PointBuyScript>().varspeed = speedvar1;
Debug.Log(speedvar1);
In script PointBuyScript:
public void Start()
{
mySpeed.onValueChanged.AddListener(delegate { ValueChangeCheck(); });
}
public void LateUpdate()
{
varspeed = mySpeed.value;
Debug.Log(varspeed);
}
When I move the slider the number in the console from PointBuyScript scales with the Slider. However, the one from BallScript forever remains the same.
BallScript Code:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class BallScript : MonoBehaviour
{
// Start is called before the first frame update
public float speed;
private Rigidbody rb;
public float speedvar1;
public float SpeedMain;
void Start()
{
rb = GetComponent<Rigidbody>();
speedvar1 = GameObject.Find("Canvas").GetComponent<PointBuyScript>().mySpeed.value;
}
void FixedUpdate()
{
float moveHorizontal = Input.GetAxis("Horizontal");
float moveVertical = Input.GetAxis("Vertical");
Vector3 movement = new Vector3(moveHorizontal, 0.00f, moveVertical);
speed = speedvar1; // this is where I try and update the speed variable to the slider number
rb.AddForce(movement * speed);
}
void LateUpdate()
{
Debug.Log(speedvar1);
Debug.Log(speed);
// Debug.Log(SpeedMain);
}
}
PointBuyScript Code:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class PointBuyScript : MonoBehaviour
{
public Slider mySpeed;
public float varspeed;
public float mainSpeed;
public void Start()
{
// GameObject speed1 = GameObject.Find("Ball");
// BallScript hellome = speed1.GetComponent<BallScript>();
// varspeed = GameObject.Find("Ball").GetComponent<BallScript>().speed;
//Adds a listener to the main slider and invokes a method when the value changes.
mySpeed.onValueChanged.AddListener(delegate { ValueChangeCheck(); });
}
public void Update()
{
// Debug.Log(mySpeed.value);
//mainSpeed = mySpeed.value;
}
public void LateUpdate()
{
varspeed = mySpeed.value;
Debug.Log(varspeed);
}
// Invoked when the value of the slider changes.
public void ValueChangeCheck()
{
}
}

This code:
GameObject.Find("Canvas").GetComponent<PointBuyScript>().varspeed = speedvar1;
Says "take the value in speedvar1 and assign it to PointBuyScript#varspeed." That is, the value of PointBuyScript#varspeed is changed (and speedvar1 remains unchanged).
You probably want:
speedvar1 = GameObject.Find("Canvas").GetComponent<PointBuyScript>().varspeed;

GameObject cant find findgameobjectwithtag

I am a bit confused as to why this is, so basically Im trying to get it to where the camera follows the player without moving left and right with him.
using System.Collections;
using UnityEngine;
public class CameraMotor : MonoBehaviour {
private Transform lookAt;
private Vector3 startOffset;
private Vector3 moveVector;
void Start () {
GameObject.FindGameObjectWithTag ("Player").transform;
}
// Update is called once per frame
void Update () {
moveVector = lookAt.position + startOffset;
//X
moveVector.x = 0; //center of track
//Y[image][1]
moveVector.y = Mathf.Clamp(moveVector.y,3,5);// for ramps/stairs
transform.position = moveVector;
}
}

I think you want GameObject.FindWithTag
https://docs.unity3d.com/ScriptReference/GameObject.FindWithTag.html
Even so,
GameObject.FindWithTag ("Player").transform;
does nothing. (Nothing usefull atleast)
lookAt is never assigned, so im guessing what you want to do is
lookAt = GameObject.FindWithTag ("Player").transform;

If you are looking for an object in your scene, then use this simple script;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class AnswerScript : MonoBehaviour {
private Transform lookAt;
// Use this for initialization
void Start () {
lookAt.Find("The Object That You are Looking For");
}
// Update is called once per frame
void Update () {
}
}

How do I make it so the player reactivates on replay?

I am making a really short C# Unity game for a college class I am in and I have created a script for a trap that deactivates my player on contact that also includes a replay button. It all works except when I replay, the player remains inactive.
How would I modify my script to make it so the player reactivates on replay?
Also, this class I am in is a beginner class, I'm not super good at this.
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class Trap : MonoBehaviour
{
public GameObject playerExplosion;
public GameObject gameOverUI;
void OnTriggerEnter (Collider other)
{
if (other.tag == "Player")
{
Instantiate(playerExplosion, other.transform.position, other.transform.rotation);
}
other.gameObject.SetActive(false);
gameObject.SetActive(false);
gameOverUI.SetActive(true);
PlayerController.gameOver = false;
}
}
Edit: Here is the replay script too. It works on a health bar system.
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class ReplayGame : MonoBehaviour
{
public Transform player;
public Image uiBar;
public GameObject GameOverUI;
public static Vector3 startPosition;
private float fillAmount;
void Start()
{
startPosition = player.position;
fillAmount = uiBar.fillAmount;
GameOverUI.SetActive(false);
}
public void Click ()
{
PlayerController.gameOver = false;
player.position = startPosition;
uiBar.fillAmount = fillAmount;
GameOverUI.SetActive(false);
}
}

you will have to re Activate your player, or you have to Instantiate a new player.
public void Replay ()
{
//ReActivate
myPlayer.gameObject.SetActive(true);
//or Instnatiate a new
Instantiate(myPlayer);
}