TileManager.cs

using UnityEngine;

public class TileManager : MonoBehaviour
{

    public static float score;

    //Bool used to detect if the player has got any score added
    public static bool gotScore;

    // Update is called once per frame
    void Update()
    {
        //here you should have the score added script, I'll put a simple press key 1 to test
        if (Input.GetKeyDown(KeyCode.Alpha1))
        {
            GetScore();
        }
    }

    //Method of getting points
    void GetScore()
    {
        //Adds 1 to score
        score ++;
        //Turns bool true to show that we got more score
        gotScore = true;
    }
}