fix: Changed some fields so they are no longer static for more stable parallel import process

Author: Cammin

Assets/LDtkUnity/Editor/ScriptedImporter/LDtkLevelImporter.cs

@@ -18,7 +18,6 @@ internal sealed class LDtkLevelImporter : LDtkJsonImporter<LDtkLevelFile>
     {
         //statically reset this upon the editor application delay call so that we only need to deserialize json data once
         private static readonly Dictionary<LDtkProjectImporter, LdtkJson> Jsons = new Dictionary<LDtkProjectImporter, LdtkJson>();
-        private static Texture2D _icon;
 
         private LDtkProjectImporter _projectImporter;
         private LdtkJson _projectJson;
@@ -66,11 +65,6 @@ protected override void Import()
                 return;
             }
 
-            if (_icon == null)
-            {
-                _icon = LDtkIconUtility.LoadLevelFileIcon();
-            }
-            
             //instead of grabbing the level from the project that built the level in that hierarchy, build the level from this json file directly to help individualize level building to only what's changed
             //that being said, the level importer still has important dependencies to the project importer like tile assets, entities, and any other artifacts.
 
@@ -150,7 +144,7 @@ private void BuildLevel()
 
             assetProcess.Process();
 
-            ImportContext.AddObjectToAsset("levelRoot", levelRoot, _icon);
+            ImportContext.AddObjectToAsset("levelRoot", levelRoot, LDtkIconUtility.LoadLevelFileIcon());
             ImportContext.SetMainObject(levelRoot);
         }
 

Assets/LDtkUnity/Editor/ScriptedImporter/LDtkTilesetImporter_Artifacts.cs

@@ -182,10 +182,10 @@ Tile.ColliderType GetColliderTypeForSprite(Sprite spr)
             }
             return Tile.ColliderType.Sprite;
         }
-        private static Vector2 GridCheck1 = new Vector2(-0.5f, -0.5f);
-        private static Vector2 GridCheck2 = new Vector2(-0.5f, 0.5f);
-        private static Vector2 GridCheck3 = new Vector2(0.5f, 0.5f);
-        private static Vector2 GridCheck4 = new Vector2(0.5f, -0.5f);
+        private static readonly Vector2 GridCheck1 = new Vector2(-0.5f, -0.5f);
+        private static readonly Vector2 GridCheck2 = new Vector2(-0.5f, 0.5f);
+        private static readonly Vector2 GridCheck3 = new Vector2(0.5f, 0.5f);
+        private static readonly Vector2 GridCheck4 = new Vector2(0.5f, -0.5f);
         public static bool IsShapeSetForGrid(List<Vector2> shape)
         {
             return shape.Count == 4 &&