How get information about the tiles of player view using a raycast?

Questions & Answers
,
1

Hello.
I’m a novice developer.
There is a rectangular grid tile map.
When I act in the direction the player is looking at,
I want to change the data on the 1*1 position tile in the direction I am looking at.

I knew how to store data on each tile.
Is there a way to find only one particular tile in the direction you’re looking at?
I think I can use a raycast, but I don’t have a clue.
I want the targeting function of a normal 2D farm simulation.

The style may be awkward because it’s a translator. Please excuse me.

2

You could have an array of grids Transform[] gridTileArray and check which tile is closest to the player:

Transform closestTile = null;
float closestTileDistance = -1;

for (int i=0; i < gridTileArray.length; i++){
     float currentDistance = Vector2.Distance(gridTileArray[i], player.position);
     if (currentDistance < closestTileDistance){
          closestTileDistance = currentDistance;
          closestTile = gridTileArray[i];
     }
}

if (closestTile == null){
     Debug.LogWarning("An error occured, either the gridTileArray is empty, or the code has an error");
}
3

Ok, so what ai would do, now that I understood better is:

Collider2D frontTile;
frontTile = Physics2D.CastSphere(player.position + player.forward * distance, radius);

Wrote from phone so there may be sintax errors

4

using System.Collections;
using System.Collections.Generic;
using Unity.VisualScripting;
using UnityEngine;

public class Player : MonoBehaviour
{
float speed = 0.01f;
[SerializeField]
Transform closestTile = null;
[SerializeField]
float closestTileDistance = 100;
public static List reachTiles = new List();

private void Update()
{
    if (Input.GetKey(KeyCode.UpArrow))
    {
        transform.position += new Vector3(0, speed,0);
    }
    if (Input.GetKey(KeyCode.DownArrow))
    {
        transform.position += new Vector3(0, -speed, 0);
    }
    if (Input.GetKey(KeyCode.LeftArrow))
    {
        transform.position += new Vector3(-speed, 0, 0);
    }
    if (Input.GetKey(KeyCode.RightArrow))
    {
        transform.position += new Vector3(speed, 0, 0);
    }

    for (int i = 0; i < reachTiles.Count; i++)
    {
        float currentDistance = Vector2.Distance(reachTiles[i].position, gameObject.transform.position);
        if (currentDistance < closestTileDistance)
        {
            closestTileDistance = currentDistance;
            closestTile = reachTiles[i];
        }
    }

    if (closestTile == null)
    {
        Debug.LogWarning("An error occured, either the gridTileArray is empty, or the code has an error");
    }
    else
    {
        Debug.Log(closestTile);
        closestTileDistance = 100;
        closestTile = null;
    }
}

}