Aziz

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class MapReader : MonoBehaviour {

    public Texture2D image;
    bool[,] map;
    public bool showMapGizmos;

	void Start () {
        MapFromImage();
	}

    void MapFromImage()
    {
        Color[] cols = image.GetPixels();
        map = new bool[image.width, image.height];
        float thresholdIntensity = .6f;

        for (int i = 0; i < image.width; i++)
        {
            for (int j = 0; j < image.height; j++)
            {
                Color c = cols[j * image.width + i];
                float pixelIntensity = c.grayscale;
                map[i, j] = pixelIntensity > thresholdIntensity;
            }
        }
    }

	private void OnDrawGizmos()
	{
        if (map != null && showMapGizmos)
        {
            for (int i = 0; i < map.GetLength(0); i++)
            {
                for (int j = 0; j < map.GetLength(1); j++)
                {
                    Vector3 pos = new Vector3(-map.GetLength(0) / 2f + i, 0, -map.GetLength(1) + j);
                    Gizmos.color = (map[i, j]) ? Color.green : Color.red;
                    Gizmos.DrawCube(pos, new Vector3(1, .1f, 1));
                }
            }
        }
	}

}