I need help on adding vector2 to a lest and the exstecting it Look in the wright and read fucshins,how do i put a vector 2 in a list and exstrat for if statmes

 using UnityEngine;
 using System.Collections;
 using System.Collections.Generic;
 
 public class depth_gen : MonoBehaviour
 {
     public GameObject dirt;
     public GameObject IronOre;
     public GameObject Stone;
     public Transform Player;
     private int RanInt;
     private float X = 0f;
     private float Y = 0f;
     private float Z = 0f;
     private int Stage = 0;
     private int RanOre = 0;
     private float id = 0f;
     private int LoaddedCount = 0;
     private Vector3 SpanPos;
     private Vector2 BlockInfo;
     private float Level;
     private List<Vector4> Blocks = new List<Vector4>();
     
     // Start is called before the first frame update
     private float yfinder = 0f;
     void Start()
     {
         
         X = this.transform.position.x;
         Y = this.transform.position.y;
         Stage = 1;
     }
 
     // Update is called once per frame
     void Update()
     {  
         if ((Player.position.x - X) < 10 && (Player.position.x - X) > -10) {// && (Player.position.y - Y) < 6 && (Player.position.y - Y) > -6
             if (Stage >= 1 && Stage <= 5) {//this is dirt
                 Y = Y - 0.48f;
                 SpanPos.Set(X,Y,Z);
                 Instantiate(dirt, SpanPos, this.transform.rotation);
                 Stage = Stage + 1;
                 id = 1f;
                 Read();
             }
             if (Stage >= 6 && Stage <= 100) {
                 RanOre = Random.Range(1,231);
                 if (RanOre <= 3) {//this is iron
                     Y = Y - 0.48f;
                     SpanPos.Set(X,Y,Z);
                     Instantiate(IronOre, SpanPos, this.transform.rotation);
                     Stage = Stage + 1;
                     id = 3f;
                     Read();
                 } else {//this is stone
                     Y = Y - 0.48f;
                     SpanPos.Set(X,Y,Z);
                     Instantiate(Stone, SpanPos, this.transform.rotation);
                     Stage = Stage + 1;
                     id = 2f;
                     Read();
                 }
 
             }
         }
         if ((Player.position.x - this.transform.position.x) > 10 || (Player.position.x - this.transform.position.x) < -10) {// && (Player.position.y - this.transform.position.y) > 6 || (Player.position.y - this.transform.position.y) < -6
             //off
             LoaddedCount = LoaddedCount + 1;
         }
         if ((Player.position.x - this.transform.position.x) < 10 && (Player.position.x - this.transform.position.x) > -10) {// && (Player.position.y - this.transform.position.y) < 6 && (Player.position.y - this.transform.position.y) > -6
             //on
             LoaddedCount = LoaddedCount + 1;
         }
         if (LoaddedCount >= 3) {
             LoaddedCount = 0;
             yfinder = transform.position.y;
             Wright();
         }
     }
     void Read() {
         Level = Y / 0.48f;
         yfinder = 0.48f;
         BlockInfo = new Vector2(Y,id);
         Blocks.Add(new BlockInfo);
     }
     void Wright() {
         foreach(Vector2 blockInfo in Blocks) {
             if (blockInfo.Y == yfinder) {
                 if (blockInfo.id == 3) {//this is iron
                     SpanPos.Set(X,yfinder,Z);
                     Instantiate(IronOre, SpanPos, this.transform.rotation);
                     yfinder = yfinder - 0.48f;
                 }
             }
         }
 
     }
 }
 /**
 Id List
 Id | Block
 1:Dirt // Grass is not 1 becuse it will not be stored
 2:Stone
 3:Iron
 **/