Ruletiles

[loaril]

Would it be possible to get Navigation Modifier Tilemap work with ruletiles?

This is the error I'm getting with ruletiles:

Error

NullReferenceException: Object reference not set to an instance of an object UnityEngine.RuleTile.RuleMatches (UnityEngine.RuleTile+TilingRule rule, UnityEngine.Vector3Int position, UnityEngine.Tilemaps.ITilemap tilemap, System.Int32 angle, System.Boolean mirrorX) (at ./Library/PackageCache/com.unity.2d.tilemap.extras@3.1.1/Runtime/Tiles/RuleTile/RuleTile.cs:774) UnityEngine.RuleTile.RuleMatches (UnityEngine.RuleTile+TilingRule rule, UnityEngine.Vector3Int position, UnityEngine.Tilemaps.ITilemap tilemap, UnityEngine.Matrix4x4& transform) (at ./Library/PackageCache/com.unity.2d.tilemap.extras@3.1.1/Runtime/Tiles/RuleTile/RuleTile.cs:614) UnityEngine.RuleTile.GetTileData (UnityEngine.Vector3Int position, UnityEngine.Tilemaps.ITilemap tilemap, UnityEngine.Tilemaps.TileData& tileData) (at ./Library/PackageCache/com.unity.2d.tilemap.extras@3.1.1/Runtime/Tiles/RuleTile/RuleTile.cs:420) NavMeshPlus.Editors.Components.NavMeshModifierTilemapEditor+TileModifierPropertyDrawer.OnGUI (UnityEngine.Rect position, UnityEditor.SerializedProperty property, UnityEngine.GUIContent label) (at Assets/NavMeshComponents/Editor/NavMeshModifierTilemapEditor.cs:121) UnityEditor.PropertyDrawer.OnGUISafe (UnityEngine.Rect position, UnityEditor.SerializedProperty property, UnityEngine.GUIContent label) (at <35c0e5f206594d2fa707969117964d70>:0) UnityEditor.PropertyHandler.OnGUI (UnityEngine.Rect position, UnityEditor.SerializedProperty property, UnityEngine.GUIContent label, System.Boolean includeChildren, UnityEngine.Rect visibleArea) (at <35c0e5f206594d2fa707969117964d70>:0) UnityEditor.PropertyHandler.OnGUI (UnityEngine.Rect position, UnityEditor.SerializedProperty property, UnityEngine.GUIContent label, System.Boolean includeChildren) (at <35c0e5f206594d2fa707969117964d70>:0) UnityEditorInternal.ReorderableList+Defaults.DrawElement (UnityEngine.Rect rect, UnityEditor.SerializedProperty element, System.Object listItem, System.Boolean selected, System.Boolean focused, System.Boolean draggable, System.Boolean editable) (at <35c0e5f206594d2fa707969117964d70>:0) UnityEditorInternal.ReorderableList.DoListElements (UnityEngine.Rect listRect, UnityEngine.Rect visibleRect) (at <35c0e5f206594d2fa707969117964d70>:0) UnityEditorInternal.ReorderableList.DoList (UnityEngine.Rect rect, UnityEngine.Rect visibleRect) (at <35c0e5f206594d2fa707969117964d70>:0) UnityEditorInternal.ReorderableListWrapper.DrawChildren (UnityEngine.Rect listRect, UnityEngine.Rect headerRect, UnityEngine.Rect sizeRect, UnityEngine.Rect visibleRect, UnityEngine.EventType previousEvent) (at <35c0e5f206594d2fa707969117964d70>:0) UnityEditorInternal.ReorderableListWrapper.Draw (UnityEngine.GUIContent label, UnityEngine.Rect r, UnityEngine.Rect visibleArea, System.String tooltip, System.Boolean includeChildren) (at <35c0e5f206594d2fa707969117964d70>:0) UnityEditor.PropertyHandler.OnGUI (UnityEngine.Rect position, UnityEditor.SerializedProperty property, UnityEngine.GUIContent label, System.Boolean includeChildren, UnityEngine.Rect visibleArea) (at <35c0e5f206594d2fa707969117964d70>:0) UnityEditor.PropertyHandler.OnGUI (UnityEngine.Rect position, UnityEditor.SerializedProperty property, UnityEngine.GUIContent label, System.Boolean includeChildren) (at <35c0e5f206594d2fa707969117964d70>:0) UnityEditor.PropertyHandler.OnGUILayout (UnityEditor.SerializedProperty property, UnityEngine.GUIContent label, System.Boolean includeChildren, UnityEngine.GUILayoutOption[] options) (at <35c0e5f206594d2fa707969117964d70>:0) UnityEditor.EditorGUILayout.PropertyField (UnityEditor.SerializedProperty property, UnityEngine.GUIContent label, System.Boolean includeChildren, UnityEngine.GUILayoutOption[] options) (at <35c0e5f206594d2fa707969117964d70>:0) UnityEditor.EditorGUILayout.PropertyField (UnityEditor.SerializedProperty property, UnityEngine.GUILayoutOption[] options) (at <35c0e5f206594d2fa707969117964d70>:0) NavMeshPlus.Editors.Components.NavMeshModifierTilemapEditor.OnInspectorGUI () (at Assets/NavMeshComponents/Editor/NavMeshModifierTilemapEditor.cs:33) UnityEditor.UIElements.InspectorElement+<>c__DisplayClass72_0.b__0 () (at <35c0e5f206594d2fa707969117964d70>:0) UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr, Boolean&)

[h8man]

Investigation needed.

NavMeshModifierTilemapEditor is not documented. This component still under integration into extensions system.

[snarlynarwhal]

Hello, I also encountered this issue. I solved it by making a custom tile class MyRuleTile that extends RuleTile and handles the scenario in which the tilemap is null:

public class MyRuleTile : RuleTile
{
    public override void GetTileData(Vector3Int position, ITilemap tilemap, ref TileData tileData)
    {
        if (tilemap == null)
        {
            tileData = new TileData();
            tileData.sprite = m_DefaultSprite;
            tileData.colliderType = m_DefaultColliderType;
            tileData.gameObject = m_DefaultGameObject;
        }
        else
        {
            base.GetTileData(position, tilemap, ref tileData);
        }
    }
}

[h8man]

Thx,

I was investigating this issue, seems bug in Unity's package. But I maybe Ill find workaround.

[FoolishEL]

here the null parameter is passed as ITilemap to the method.

Quick fix:
in method TileModifierPropertyDrawer.OnGUI

`

                //...
                //Code above
                //...
                
                EditorGUI.PropertyField(tileRect, tileProperty);
                TileBase tileBase = tileProperty.objectReferenceValue as TileBase;
                TileData tileData = new TileData();
                Texture TextureToDraw = null;
                if (tileBase is RuleTile)
                {
                    TextureToDraw = EditorGUIUtility.IconContent("console.erroricon.sml").image;
                }
                else
                {
                    tileBase?.GetTileData(Vector3Int.zero, null, ref tileData);
                    TextureToDraw = tileData.sprite.texture;
                }
                
                if (TextureToDraw)
                {
                    EditorGUI.DrawPreviewTexture(previewRect, TextureToDraw, null, ScaleMode.ScaleToFit, 0);
                }
                
                //...
                //Code below
                //...

`

Also should fix asmdef.

And will look like this

[h8man]

@FoolishEL can you make Merge Request?

[FoolishEL]

@h8man
Here you are.
#196
I slightly changed how I got around this point, since here it should be taken into account that not everyone installs Tilemap Extras. And I don’t think it’s a good idea to add automatic transfer of definitions to this case.

[FoolishEL]

will work with all types except those that do not have a preview method defined in the custom inspector
like here

[h8man]

Great job!