PlatformPlayer.cs

using UnityEngine;

public class Player : MonoBehaviour
{
    public Rigidbody2D rb2D;
    public Transform groundCheck;
    public LayerMask groundLayer;

    private float _playerX;
    private float _Speed=5.0f;
    private float jumpPower=10.0f;

    private bool IsGrounded() {
        return Physics2D.OverlapCircle(groundCheck.position, 0.2f, groundLayer);
    }

    private void Update() {
        Jump();

        // Added for teleport use
        UseTeleportor();
    }
    private void FixedUpdate() {
        _playerX = Input.GetAxisRaw("Horizontal");

        rb2D.velocity = new Vector2(_playerX * _Speed, rb2D.velocity.y);
    }

    private void Jump() {
        if (Input.GetButtonDown("Jump") && IsGrounded())
        {
            rb2D.velocity = new Vector2(rb2D.velocity.x, jumpPower);
        }
    }

    #region Teleport.cs Addon code
    private void OnTriggerEnter2D(Collider2D other) {
        if (other.CompareTag("Teleportor")) {
            curTeleportor = other.gameObject;
        }
    }
    private void OnTriggerExit2D(Collider2D other) {
        if (other.CompareTag("Teleportor")) {
            if (other.gameObject == curTeleportor)
            curTeleportor = null;
        }
    }
    private void UseTeleportor() {
        if (Input.GetButtonDown("Interact")) {
            if (curTeleportor != null) {
                transform.position = curTeleportor.GetComponent<Teleport>().GetDestination().position;
            }
        }
    }
    #endregion
}