xplain the functionality of each line of code in the provided C# scripts- using System.Collections; using System.Collections.Generic; using UnityEngine; public class Movement2D : MonoBehaviour {     public float moveSpeed = 3f;     public float jumpForce = 5f;     public bool isGrounded;     private bool doubleJump;     private bool canDash = true;     private bool isDashing;     private float dashingPower = 24f;     private float dashingTime = .2f;     private float dashingCooldown = 1f;     private bool isWallJumping;     private float wallJumpingDirection;     private float wallJumpingTime;     private float wallJumpingCounter;     private float wallJumpingDuration = .04f;     private Vector2 wallJumpingPower = new Vector2(8f, 16f);     [SerializeField] private Rigidbody2D rb;     [SerializeField] private TrailRenderer tr;     [SerializeField] private Transform wallCheck;     [SerializeField] private LayerMask wallLayer;     private SpriteRenderer sprite;     public void Start()     {         sprite = gameObject.GetComponent();     }     private void Update()     {              if (isDashing)         {             return;         }         WallJump();         Jump();         Vector3 movement = new Vector3(Input.GetAxis("Horizontal"), 0f, 0f);         transform.position += movement * Time.deltaTime * moveSpeed;         if (Input.GetAxisRaw("Horizontal") < 0)         {             sprite.flipX = true;         }         else if (Input.GetAxisRaw("Horizontal") > 0)         {             sprite.flipX = false;         }         if (Input.GetKeyDown(KeyCode.LeftShift) && canDash)         {             StartCoroutine(Dash());         }         if (!isWallJumping)         {             rb.velocity = new Vector2(Input.GetAxisRaw("Horizontal") * moveSpeed, rb.velocity.y);         }     }     void Jump()     {         if (Input.GetButtonDown("Jump") && isGrounded)         {             gameObject.GetComponent().velocity = (new Vector2(0f, jumpForce));             doubleJump = true;         }         else if (Input.GetButtonDown("Jump") && doubleJump)         {             gameObject.GetComponent().velocity = (new Vector2(0f, jumpForce));             doubleJump = false;         }     }          private IEnumerator Dash()     {         canDash = false;         isDashing = true;         float orignialGravity = rb.gravityScale;         rb.gravityScale = 0f;         rb.velocity = new Vector3(Input.GetAxis("Horizontal") * dashingPower, 0f);         tr.emitting = true;         yield return new WaitForSeconds(dashingTime);         tr.emitting = false;         rb.gravityScale = orignialGravity;         isDashing = false;         yield return new WaitForSeconds(dashingCooldown);         canDash = true;     }     private void WallJump()     {         if (Input.GetButtonDown("Jump") && wallJumpingCounter > 0f)         {             isWallJumping = true;             rb.velocity = new Vector2(wallJumpingDirection * wallJumpingPower.x, wallJumpingPower.y);             wallJumpingCounter = 0f;             if (Input.GetAxisRaw("Horizontal") != wallJumpingDirection)             {                 sprite.flipX = !sprite.flipX;             }             Invoke(nameof(StopWallJumping), wallJumpingDuration);         }     }     private void StopWallJumping()     {         isWallJumping = false;     } } using System.Collections; using System.Collections.Generic; using UnityEngine; using UnityEngine.Video; [RequireComponent(typeof(VideoPlayer))] [RequireComponent(typeof(AudioSource))] public class PlayVideo : MonoBehaviour {     public VideoClip videoClip;     private VideoPlayer videoPlayer;     private AudioSource audioSource;     void Start()     {         videoPlayer = GetComponent();         audioSource = GetComponent();         videoPlayer.playOnAwake = false;         audioSource.playOnAwake = false;         videoPlayer.source = VideoSource.VideoClip;         videoPlayer.clip = videoClip;         videoPlayer.audioOutputMode = VideoAudioOutputMode.AudioSource;         videoPlayer.SetTargetAudioSource(0, audioSource);         videoPlayer.renderMode = VideoRenderMode.MaterialOverride;         videoPlayer.targetMaterialRenderer = GetComponent();         videoPlayer.targetMaterialProperty = "_MainTex";     }     void Update()     {         if (Input.GetButtonDown("Jump"))             PlayPause();     }     private void PlayPause()     {         if (videoPlayer.isPlaying)             videoPlayer.Pause();         else             videoPlayer.Play();     } } using System.Collections; using System.Collections.Generic; using UnityEngine; using UnityEngine.SceneManagement; public class NewBehaviourScript : MonoBehaviour {     // Start is called before the first frame update     void Start()     {              }     // Update is called once per frame     void Update()     {              }     public void LoadOnClick (int sceneIndex)     {         SceneManager.LoadScene(sceneIndex);     }