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I've used a platform( and also made a duplicate of it ) where the player will stand. When I hit the Play button, the original platform disappears, while the duplicate remains. Again, if I reduplicate( creating a second duplicate) the duplicate platform, now the original platform and the first duplicate disappears. I've added the necessary screenshots and the CharacterControl script. There's no script attached to the platform.


using UnityEngine;
using System.Collections;
using UnityEngine.SceneManagement; // include so we can load new scenes

public class CharacterController2D : MonoBehaviour {

    // player controls
    [Range(0.0f, 10.0f)] // create a slider in the editor and set limits on moveSpeed
    public float moveSpeed = 3f;

    public float jumpForce = 600f;

    // player health
    public int playerHealth = 1;

    // LayerMask to determine what is considered ground for the player
    public LayerMask whatIsGround;

    // Transform just below feet for checking if player is grounded
    public Transform groundCheck;

    // player can move?
    // we want this public so other scripts can access it but we don't want to show in editor as it might confuse designer
    [HideInInspector]
    public bool playerCanMove = true;

    // SFXs
    public AudioClip coinSFX;
    public AudioClip deathSFX;
    public AudioClip fallSFX;
    public AudioClip jumpSFX;
    public AudioClip victorySFX;

    // private variables below

    // store references to components on the gameObject
    Transform _transform;
    Rigidbody2D _rigidbody;
    Animator _animator;
    AudioSource _audio;

    // hold player motion in this timestep
    float _vx;
    float _vy;

    // player tracking
    bool facingRight = true;
    bool isGrounded = false;
    bool isRunning = false;

    // store the layer the player is on (setup in Awake)
    int _playerLayer;

    // number of layer that Platforms are on (setup in Awake)
    int _platformLayer;
    
    void Awake () {
        // get a reference to the components we are going to be changing and store a reference for efficiency purposes
        _transform = GetComponent<Transform> ();
        
        _rigidbody = GetComponent<Rigidbody2D> ();
        if (_rigidbody==null) // if Rigidbody is missing
            Debug.LogError("Rigidbody2D component missing from this gameobject");
        
        _animator = GetComponent<Animator>();
        if (_animator==null) // if Animator is missing
            Debug.LogError("Animator component missing from this gameobject");
        
        _audio = GetComponent<AudioSource> ();
        if (_audio==null) { // if AudioSource is missing
            Debug.LogWarning("AudioSource component missing from this gameobject. Adding one.");
            // let's just add the AudioSource component dynamically
            _audio = gameObject.AddComponent<AudioSource>();
        }

        // determine the player's specified layer
        _playerLayer = this.gameObject.layer;

        // determine the platform's specified layer
        _platformLayer = LayerMask.NameToLayer("Platform");
        //Debug.DrawLine(_transform.position, groundCheck.position, Color.magenta);
    }

    // this is where most of the player controller magic happens each game event loop
    void Update()
    {
        // exit update if player cannot move or game is paused
        if (!playerCanMove || (Time.timeScale == 0f))
            return;

        // determine horizontal velocity change based on the horizontal input
        _vx = Input.GetAxisRaw ("Horizontal");

        // Determine if running based on the horizontal movement
        if (_vx != 0) 
        {
            isRunning = true;
        } else {
            isRunning = false;
        }

        // set the running animation state
        _animator.SetBool("Running", isRunning);

        // get the current vertical velocity from the rigidbody component
        _vy = _rigidbody.velocity.y;

        // Check to see if character is grounded by raycasting from the middle of the player
        // down to the groundCheck position and see if collected with gameobjects on the
        // whatIsGround layer
        isGrounded = Physics2D.Linecast(_transform.position, groundCheck.position, whatIsGround);
        Debug.DrawLine(_transform.position, groundCheck.position, Color.magenta);

        // Set the grounded animation states
        _animator.SetBool("Grounded", isGrounded);

        if(isGrounded && Input.GetButtonDown("Jump")) // If grounded AND jump button pressed, then allow the player to jump
        {
            // reset current vertical motion to 0 prior to jump
            _vy = 0f;
            // add a force in the up direction
            _rigidbody.AddForce (new Vector2 (0, jumpForce));
            // play the jump sound
            PlaySound(jumpSFX);
        }
    
        // If the player stops jumping mid jump and player is not yet falling
        // then set the vertical velocity to 0 (he will start to fall from gravity)
        if(Input.GetButtonUp("Jump") && _vy>0f)
        {
            _vy = 0f;
        }

        // Change the actual velocity on the rigidbody
        _rigidbody.velocity = new Vector2(_vx * moveSpeed, _vy);

        // if moving up then don't collide with platform layer
        // this allows the player to jump up through things on the platform layer
        // NOTE: requires the platforms to be on a layer named "Platform"
        Physics2D.IgnoreLayerCollision(_playerLayer, _platformLayer, (_vy > 0.0f)); 
    }

    // Checking to see if the sprite should be flipped
    // this is done in LateUpdate since the Animator may override the localScale
    // this code will flip the player even if the animator is controlling scale
    void LateUpdate()
    {
        // get the current scale
        Vector3 localScale = _transform.localScale;

        if (_vx > 0) // moving right so face right
        {
            facingRight = true;
        } else if (_vx < 0) { // moving left so face left
            facingRight = false;
        }

        // check to see if scale x is right for the player
        // if not, multiple by -1 which is an easy way to flip a sprite
        if (((facingRight) && (localScale.x<0)) || ((!facingRight) && (localScale.x>0))) {
            localScale.x *= -1;
        }

        // update the scale
        _transform.localScale = localScale;
    }

    // if the player collides with a MovingPlatform, then make it a child of that platform
    // so it will go for a ride on the MovingPlatform
    void OnCollisionEnter2D(Collision2D other)
    {
        if (other.gameObject.tag=="MovingPlatform")
        {
            this.transform.parent = other.transform;
        }
    }

    // if the player exits a collision with a moving platform, then unchild it
    void OnCollisionExit2D(Collision2D other)
    {
        if (other.gameObject.tag=="MovingPlatform")
        {
            this.transform.parent = null;
        }
    }

    // do what needs to be done to freeze the player
    void FreezeMotion() {
        playerCanMove = false;
        _rigidbody.velocity = new Vector2(0,0);
        _rigidbody.isKinematic = true;
    }

    // do what needs to be done to unfreeze the player
    void UnFreezeMotion() {
        playerCanMove = true;
        _rigidbody.isKinematic = false;
    }

    // play sound through the audiosource on the gameobject
    void PlaySound(AudioClip clip)
    {
        _audio.PlayOneShot(clip);
    }

    // public function to apply damage to the player
    public void ApplyDamage (int damage) {
        if (playerCanMove) {
            playerHealth -= damage;

            if (playerHealth <= 0) { // player is now dead, so start dying
                PlaySound(deathSFX);
                StartCoroutine (KillPlayer ());
            }
        }
    }

    // public function to kill the player when they have a fall death
    public void FallDeath () {
        if (playerCanMove) {
            playerHealth = 0;
            PlaySound(fallSFX);
            StartCoroutine (KillPlayer ());
        }
    }

    // coroutine to kill the player
    IEnumerator KillPlayer()
    {
        if (playerCanMove)
        {
            // freeze the player
            FreezeMotion();

            // play the death animation
            _animator.SetTrigger("Death");
            
            // After waiting tell the GameManager to reset the game
            yield return new WaitForSeconds(2.0f);

            if (GameManager.gm) // if the gameManager is available, tell it to reset the game
                GameManager.gm.ResetGame();
            else // otherwise, just reload the current level
                SceneManager.LoadScene(SceneManager.GetActiveScene().name);
        }
    }

    public void CollectCoin(int amount) {
        PlaySound(coinSFX);

        if (GameManager.gm) // add the points through the game manager, if it is available
            GameManager.gm.AddPoints(amount);
    }

    // public function on victory over the level
    public void Victory() {
        PlaySound(victorySFX);
        FreezeMotion ();
        _animator.SetTrigger("Victory");

        if (GameManager.gm) // do the game manager level compete stuff, if it is available
            GameManager.gm.LevelCompete();
    }

    // public function to respawn the player at the appropriate location
    public void Respawn(Vector3 spawnloc) {
        UnFreezeMotion();
        playerHealth = 1;
        _transform.parent = null;
        _transform.position = spawnloc;
        _animator.SetTrigger("Respawn");
    }
}

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  • \$\begingroup\$ As I can see, CharacterController script has nothing to do with the platforms. Aren't there any components that reference (through direct assignment or using FindObjectOfType<>) tilemap components? Also, check for scripts that have DontDestroyOnLoad calls as tilemap is moved to DontDestroyOnLoad scene. This seems like other script is allowing only one instance of the object (follows Singleton pattern). \$\endgroup\$ – eLTomis Jul 27 at 14:43
  • \$\begingroup\$ No, there are no components that reference tilemap components. \$\endgroup\$ – Ishan2077 Jul 27 at 14:45
  • \$\begingroup\$ Please do not re-post the same question again. Edit your existing question to contain enough information to reproduce the problem and it can be re-opened. \$\endgroup\$ – DMGregory Jul 27 at 15:35
  • \$\begingroup\$ Sure , sir. I'll do it right away. \$\endgroup\$ – Ishan2077 Jul 27 at 15:43

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