TilemapGridProperties.cs

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using UnityEditor;
using UnityEngine;
using UnityEngine.Tilemaps;
 
[ExecuteAlways]
public class TilemapGridProperties : MonoBehaviour
{
    private Tilemap m_Tilemap;    
    [SerializeField] private SO_GridProperties m_GridProperties = null;
    [SerializeField] private GridBoolProperty m_GridBoolProperty = GridBoolProperty.Diggable;
 
    private void OnEnable()
    {
        if( !Application.IsPlaying( gameObject ) )
        {
            m_Tilemap = GetComponent<Tilemap>();
 
            if( m_GridProperties != null )
            {
                m_GridProperties.m_GridPropertyList.Clear();
            }
        }
    }
 
    private void OnDisable()
    {
        if( !Application.IsPlaying( gameObject ) )
        {
            UpdateGridProperties();
 
            if( m_GridProperties != null )
            {
                EditorUtility.SetDirty(m_GridProperties);
            }
        }
    }
 
    private void UpdateGridProperties()
    {
        // Compress Tilemap Bounds.
        m_Tilemap.CompressBounds();
 
        if( !Application.IsPlaying( gameObject ) )
        {
            if( m_GridProperties != null )
            {
                Vector3Int startCell = m_Tilemap.cellBounds.min;
                Vector3Int endCell = m_Tilemap.cellBounds.max;
 
                for( int x = startCell.x; x < endCell.x; x++ )
                {
                    for( int y = startCell.y; y < endCell.y; y++ )
                    {
                        TileBase tile = m_Tilemap.GetTile( new Vector3Int( x, y, 0) );
 
                        if( tile != null )
                        {
                            m_GridProperties.m_GridPropertyList.Add( new GridProperty( new GridCoordinate(x, y), m_GridBoolProperty, true) );
                        }
                    }
                }
            }
        }
    }
 
    private void Update()
    {        
        if( !Application.IsPlaying( gameObject ) )
        {
            Debug.Log("DISABLE PROPERTY TILEMAPS");
        }
    }
}