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Enemy Projectile is not flying in the right direction?

I am having trouble getting the enemy's projectile to fly from the enemy to the player's position. When I play the game, the enemy bullet projectiles fly off in one direction on the screen and not toward the player. I think the issue might be in how I am assigning direction to the projectile prefab? Any suggestions would be much appreciated.
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class EnemyController : MonoBehaviour
{
public float speed;
public Rigidbody enemyRb;
[SerializeField] float rateOfFire;
private GameObject player;
public GameObject projectilePrefab;
float nextFireAllowed;
public bool canFire;
Transform enemyMuzzle;
void Awake()
{
enemyRb = GetComponent<Rigidbody>();
player = GameObject.Find("Player");
enemyMuzzle = transform.Find("EnemyMuzzle");
}
void Update()
{
//move enemy rigidbody toward player
Vector3 lookDirection = (player.transform.position - transform.position).normalized;
enemyRb.AddForce(lookDirection * speed);
//overallSpeed
Vector3 horizontalVelocity = enemyRb.velocity;
horizontalVelocity = new Vector3(enemyRb.velocity.x, 0, enemyRb.velocity.z);
// turns enemy to look at player
transform.LookAt(player.transform);
//launches projectile toward player
projectilePrefab.transform.Translate(lookDirection * speed * Time.deltaTime);
Instantiate(projectilePrefab, transform.position, projectilePrefab.transform.rotation);
}
public virtual void Fire()
{
canFire = false;
if (Time.time < nextFireAllowed)
return;
nextFireAllowed = Time.time + rateOfFire;
//instantiate the projectile;
Instantiate(projectilePrefab, enemyMuzzle.position, enemyMuzzle.rotation);
canFire = true;
}
}

It looks like what is actually happening is that you create a bunch of bullets but don't store a reference to them. So each bullets sits in one place while the enemy moves closer to the player ( which might give the appearance that the bullets are moving relative to the enemy. ) I also assume the enemy is moving very fast since it is not scaled by delta time but is being updated every frame.
I think projectilePrefab is just the template object you're spawning, so you probably don't want to move it directly and you certainly don't want to instantiate a new bullet every frame.
If you want to move the object you spawned the least changes ( but still problematic ) from your example code might be:
public class EnemyController : MonoBehaviour
{
// add a reference
private GameObject projectileGameObject = null;
void Update()
{
//Update position of spawned projectile rather than the template
if(projectileGameObject != null ) {
projectileGameObject.transform.Translate(lookDirection * speed * Time.deltaTime);
}
// Be sure to remove this extra instantiate
//Instantiate(projectilePrefab, transform.position, projectilePrefab.transform.rotation);
}
public virtual void Fire()
{
//instantiate the projectile
projectileGameObject = Instantiate(projectilePrefab, enemyMuzzle.position, enemyMuzzle.rotation);
}
}
Or keep multiple bullets in a list. This implementation has the bug that it will always use the current enemy to player vector as the direction rather than the direction that existed when it was fired.
What you will probably want eventually is that each projectile is has it's own class script to handle projectile logic. All the enemyController class has to do is spawn the projectile and sets it's direction and position on a separate monobehavior that lives on the Projectile objects that handles it's own updates.

How can I get a character to walk on a moving platform in Unity

I have a moving platform in a 2D Sidescroller built in Unity 2020.1
The Moving Platform translates between two points using the MoveTo method. It does not have a RigidBody2D component.
I attach the Player to the platform by making it the child of the platform using OnCollisionEnter2D and OnCollisionExit2D to parent the Player to the parent and reset to null respectively. Works great.
I'm using the CharacterController from Standard Assets.
The problem:
The player just walks in place when I try to move him back and forth on the platform.
What I've tried so far:
Changing the current velocity of the player by adding a constant to the x dimension of it's move vector.
Works kinda sorta but that constant needs to be huge to get it to move even a little bit. It's a huge kluge that violates every sense of coding propriety.
Put a RigidBody2D on the platform. Make it kinematic so it doesn't fall to the ground when I land on it. Move the platform via "rb.velocity = new Vector2(speed, rb.velocity.y)";
2a) Attempt to make the Player a child of the kinematic platform.
Player is made a child, but it doesn't move with the platform as expected. I believe that this is because both objects have RigidBody2D components, which I gather don't play well together based on what I've read.
2b) Attempt to add the platform's moving vector to the player's movement vector to make him stay in one place. Player stays stationary to make sure he stays fixed on the platform.
No dice.
I'm all out of ideas. Perusing videos on making player's stick to moving platforms all use the platform to move the player from place to place, without expecting that the game may want the player to move back and forth on the platform as the platform is moving.
I can't believe that this isn't a solved problem, but my Google foo isn't getting me any answers.
Thanks.

I'm a fairly newbie to Unity and C# but I wanted to help so I tried simulating your game for a solution and I didn't run into any problems using this script as the Player movement (you can modify variables as u like, add a separate variable for jump speed to make it smoother etc)
public class Player : MonoBehaviour {
Rigidbody2D rb;
float speed = 7f;
Vector3 movement;
public bool isOnGround;
public bool isOnPlatform;
// Start is called before the first frame update
void Start()
{
rb = GetComponent<Rigidbody2D>();
}
// Update is called once per frame
void Update()
{
movement = new Vector3(Input.GetAxis("Horizontal"), 0f, 0f);
transform.position += movement * speed * Time.deltaTime;
Jump();
}
void Jump()
{
if (Input.GetButtonDown("Jump") && isOnGround || Input.GetButtonDown("Jump") && isOnPlatform)
{
rb.AddForce(transform.up * speed, ForceMode2D.Impulse);
}
}
}
Also add an empty child object to your Player gameObject and add a BoxCollider2D at his feet, narrow it down on Y axis like this
also attach this script to that child gameObject to check if player is on the ground(tag ground collider objects with new tag "Ground") so u don't jump infinitely while in the air OR if the player is on the platform(tag platform collider objects with "Platform") so you're still able to jump off it
public class GroundCheck : MonoBehaviour {
Player player;
MovingPlatform mp;
// Start is called before the first frame update
void Start()
{
player = FindObjectOfType<Player>();
mp = FindObjectOfType<MovingPlatform>();
}
private void OnCollisionEnter2D(Collision2D other)
{
if (other.gameObject.tag == "Ground")
{
player.isOnGround = true;
}
if (other.gameObject.tag == "Platform")
{
player.isOnPlatform = true;
transform.parent.SetParent(other.transform);
mp.MoveThePlatform();
}
}
private void OnCollisionExit2D(Collision2D other)
{
if (other.gameObject.tag == "Ground")
{
player.isOnGround = false;
}
if (other.gameObject.tag == "Platform")
{
transform.parent.SetParent(null);
}
}
}
and finally for platform movement (no RigidBody2Ds, just a collider)
public class MovingPlatform : MonoBehaviour {
bool moving;
public Transform moveHere;
// Update is called once per frame
void Update()
{
if (moving)
{
gameObject.transform.position = Vector2.MoveTowards(transform.position, moveHere.position, 2f * Time.deltaTime);
}
}
public void MoveThePlatform()
{
moving = true;
}
}
additional images
Player, Platform
P.s. Forgot to add - on Player's RigidBody2D, under Constraints, check the "Freeze Rotation Z" box.

Passing parameters on instantiation in Unity

I'm having a little problem on passing parameter to an object when I instantiate it, let me explain it better:
I made an automatic turret in unity, it just aim an enemy and instantiate a missile that destroy the enemy. The turret works great, I'm having some problems only with the missile...
The missile is a game object with a script attached at, in this script I have only 1 public variable the type is "GameObject" and the name is "target", when (from the turret script) I instantiate the missile, I set the variable "target" equal to the enemy the turret is aiming at.
Into the start function (missile's script) I rotate the missile towards the "target" and, incrementing the position of the missile it can hit the enemy.
Missile script:
public GameObject target;
private Vector3 targetPosition;
// Use this for initialization
void Start () {
transform.SetParent(GameObject.FindGameObjectWithTag("Canvas").transform);
targetPosition = target.transform.position;
//Rotation of the missile
Vector3 difference = this.targetPosition - transform.position;
float rotationZ = Mathf.Atan2(difference.y, difference.x) * Mathf.Rad2Deg;
transform.rotation = Quaternion.Euler(0.0f, 0.0f, rotationZ);
}
// Update is called once per frame
void Update () {
// The step size is equal to speed times frame time.
float step = 1.5f * Time.deltaTime;
// Move our position a step closer to the target.
transform.position += transform.right * step;
}
private void OnCollisionEnter2D(Collision2D collision)
{
Destroy(collision.gameObject);
Destroy(this.gameObject);
}
Turret script
public GameObject missile; //this is the missile prefab
void OnTriggerEnter2D(Collider2D collision)
{
if(collision.gameObject.tag == "enemy") //The turret is aiming an enemy
{
Target = collision.gameObject;
StartCoroutine(openFire());
}
}
IEnumerator openFire()
{
GameObject newMissile;
newMissile = Instantiate(missile, this.transform.position, Quaternion.identity, GameObject.FindGameObjectWithTag("Canvas").transform);
missile.GetComponent<missileScript>().target = Target;
yield return new WaitForSeconds(1);
if (Target != null)
StartCoroutine(openFire());
}
Everything works fine, the problem arises when I have more than one turret: If I have two turret (turret A and turret B) and at the same time both turrets shoots to two different enemies, for some reasons, both missiles will have the same target.
So, for example if the turret "A" shoots to the enemy "1", and, at the same time, the turret "B" shoots to the enemy "2", both missiles will go toward the same enemy.
I hope I was clear. Any ideas on what the problem could be?
Thanks.
-----FIXED-----
I simply have edited the variable "target" by public to private and I made a "setter" public method.
Sincerely I don't know why it fixed my problem...

You're overwriting your prefab:
missile = Instantiate(missile, ...)
You do declare a GameObject newMissile but you're not using it.
Second:
if (Target != null)
You're restarting the OpenFire method if the target isn't null...but you still instantiate a missile! You probably want to change this.

Unity game trouble

I am creating a game in Unity where I have to have a player (a ball) and three enemies (in this case three rotating cylinders). Whenever the player hits an enemy, I need it to die (which I have already done) and then print out Game over, which I don't know how to do. I also need the player to respawn after it dies, which is another think I don't know how to do. I also need to create three "virtual holes" where when the player rolls over them, it respawns, but not dies. I figure I can simulate holes by creating flat cylinders, but I don't know how to make the ball respawn but rolling over them. Thank you in advance!! Please be clear about which part does what in your answer.
//My player script
public class PlayerController : MonoBehaviour
{
public float speed;
private Rigidbody rb;
public float threshold;
public Text gameOver;
// Use this for initialization
void Start()
{
rb = GetComponent<Rigidbody>();
}
// Update is called once per frame
//rolls the player according to x and z values
void FixedUpdate()
{
float moveHorizontal = Input.GetAxis("Horizontal");
float moveVertical = Input.GetAxis("Vertical");
Vector3 movement = new Vector3(moveHorizontal, 0.0f, moveVertical);
rb.AddForce(movement * speed);
}
}
//my script that makes the enemy rotate and kills the player but after the
player dies it just disappears
public class Rotater : MonoBehaviour {
public Text gameOver;
// Update is called once per frame
void Update ()
{
transform.Rotate(new Vector3(15, 30, 45) * Time.deltaTime);
}
//kills player
void OnCollisionEnter(Collision Col)
{
if (Col.gameObject.name == "Player")
{
Destroy(Col.gameObject);
gameOver.text = "Game over!";
}
}
//my script that respawns the play if it falls off the maze
public class Respawn : MonoBehaviour
{
// respawns player if it goes below a certain point (falls of edge)
public float threshold;
void FixedUpdate()
{
if (transform.position.y < threshold)
transform.position = new Vector3(-20, 2, -24);
}
}

You need to create a UI to draw text over your game. You can learn about it here.
When you have the UI in place, you can just activate/deactivate the relevant parts with SetActive(bool).
To kill and respawn the player, I suggest you not to destroy it and re-instantiate it. Instead, you can simply deactivate it and reactivate it in the new position using SetActive(bool) again.
For the holes, you can create other objects with colliders and use OnCollisionEnter as you already did but to change player's position.

Tank does not shoot instantiated bullet

I started making a simple game in Unity3d: a tank to shoot at a wall (see image).
A GameObject is attached to the turret of the tank, and to this GameObject is attached the following script :
using UnityEngine;
using System.Collections;
public class Shooter : MonoBehaviour {
public Rigidbody bullet;
public float power = 1500f;
void Update () {
if (Input.GetButtonDown ("Fire1")) {
Rigidbody bulletRB = Instantiate (bullet, transform.position, transform.rotation) as Rigidbody;
Vector3 fwd = transform.TransformDirection(Vector3.forward);
bulletRB.AddForce(fwd*power);
}
}
}
When I press on the Fire1 button the bullet does not shoot. I put (for test) a Debug.Log("BULLET SHOOT") after bulletRB.addForce(). The message is displayed, so the script reached this point. What is wrong with my code?

Based on this somewhat similar question on Unity Answers, you should probably be instantiating the GameObject of the bullet prefab/instance, rather than its Rigidbody directly. Then, access the Rigidbody component of that new bullet and add the force.
Your adjusted Update() method would then look like:
void Update () {
if (Input.GetButtonDown ("Fire1")) {
GameObject newBullet = Instantiate (bullet.gameObject, transform.position, transform.rotation) as GameObject;
RigidBody bulletRB = newBullet.GetComponent<Rigidbody>();
Vector3 fwd = transform.TransformDirection(Vector3.forward);
bulletRB.AddForce(fwd*power);
}
}
Another thing you may want to change is using transform.forward (aka. Forward vector of the turret) rather than Vector3.forward (global forward vector Vector3(0, 0, 1), which may not match the direction of the turret).
Hope this helps! Let me know if you have any questions.

Force can be applied only to an active rigidbody. If a GameObject is inactive, AddForce has no effect.
Wakes up the Rigidbody by default. If the force size is zero then the Rigidbody will not be woken up.
The above description is taken from Unity
Therefore, I would suggest to check if the GameObject is active first.
You can test it by doing the following:
if (newBullet.activeInHierarchy === true)
{
//active
}else{
//inactive
}