Fix incorrect drawing of alternative tiles

editor/plugins/tiles/tile_set_atlas_source_editor.cpp

@@ -2002,7 +2002,7 @@ void TileSetAtlasSourceEditor::_tile_alternatives_control_unscaled_draw() {
 					continue;
 				}
 				Rect2i rect = tile_atlas_view->get_alternative_tile_rect(coords, alternative_tile);
-				Vector2 position = rect.get_center();
+				Vector2 position = rect.get_center() + tile_set_atlas_source->get_tile_effective_texture_offset(coords, alternative_tile);
 
 				Transform2D xform = alternative_tiles_control->get_parent_control()->get_transform();
 				xform.translate_local(position);
@@ -2026,7 +2026,7 @@ void TileSetAtlasSourceEditor::_tile_alternatives_control_unscaled_draw() {
 					continue;
 				}
 				Rect2i rect = tile_atlas_view->get_alternative_tile_rect(E.tile, E.alternative);
-				Vector2 position = rect.get_center();
+				Vector2 position = rect.get_center() + tile_set_atlas_source->get_tile_effective_texture_offset(E.tile, E.alternative);
 
 				Transform2D xform = alternative_tiles_control->get_parent_control()->get_transform();
 				xform.translate_local(position);