Fixes TileSet Y-sort not working and TileSet not saving correctly

doc/classes/TileData.xml

@@ -229,7 +229,7 @@
 		</member>
 		<member name="transpose" type="bool" setter="set_transpose" getter="get_transpose" default="false">
 		</member>
-		<member name="y_sort_origin" type="Vector2i" setter="set_y_sort_origin" getter="get_y_sort_origin" default="Vector2i( 0, 0 )">
+		<member name="y_sort_origin" type="int" setter="set_y_sort_origin" getter="get_y_sort_origin" default="0">
 		</member>
 		<member name="z_index" type="int" setter="set_z_index" getter="get_z_index" default="0">
 		</member>

editor/plugins/tiles/tile_data_editors.cpp

@@ -113,7 +113,22 @@ void TileDataPositionEditor::draw_over_tile(CanvasItem *p_canvas_item, Transform
 	ERR_FAIL_COND(value.get_type() != Variant::VECTOR2I && value.get_type() != Variant::VECTOR2);
 
 	Ref<Texture2D> position_icon = TileSetEditor::get_singleton()->get_theme_icon("EditorPosition", "EditorIcons");
-	p_canvas_item->draw_texture(position_icon, p_transform.get_origin() + Vector2(value) - position_icon->get_size() / 2);
+	p_canvas_item->draw_texture(position_icon, p_transform.xform(Vector2(value)) - position_icon->get_size() / 2);
+}
+
+void TileDataYSortEditor::draw_over_tile(CanvasItem *p_canvas_item, Transform2D p_transform, TileSet *p_tile_set, int p_atlas_source_id, Vector2i p_atlas_coords, int p_alternative_tile, String p_property) {
+	TileData *tile_data = _get_tile_data(p_tile_set, p_atlas_source_id, p_atlas_coords, p_alternative_tile);
+	ERR_FAIL_COND(!tile_data);
+
+	bool valid;
+	Variant value = tile_data->get(p_property, &valid);
+	if (!valid) {
+		return;
+	}
+	ERR_FAIL_COND(value.get_type() != Variant::INT);
+
+	Ref<Texture2D> position_icon = TileSetEditor::get_singleton()->get_theme_icon("EditorPosition", "EditorIcons");
+	p_canvas_item->draw_texture(position_icon, p_transform.xform(Vector2(0, value)) - position_icon->get_size() / 2);
 }
 
 void TileDataOcclusionShapeEditor::draw_over_tile(CanvasItem *p_canvas_item, Transform2D p_transform, TileSet *p_tile_set, int p_atlas_source_id, Vector2i p_atlas_coords, int p_alternative_tile, String p_property) {

editor/plugins/tiles/tile_data_editors.h

@@ -79,6 +79,13 @@ public:
 	virtual void draw_over_tile(CanvasItem *p_canvas_item, Transform2D p_transform, TileSet *p_tile_set, int p_atlas_source_id, Vector2i p_atlas_coords, int p_alternative_tile, String p_property) override;
 };
 
+class TileDataYSortEditor : public TileDataEditor {
+	GDCLASS(TileDataYSortEditor, TileDataEditor);
+
+public:
+	virtual void draw_over_tile(CanvasItem *p_canvas_item, Transform2D p_transform, TileSet *p_tile_set, int p_atlas_source_id, Vector2i p_atlas_coords, int p_alternative_tile, String p_property) override;
+};
+
 class TileDataOcclusionShapeEditor : public TileDataEditor {
 	GDCLASS(TileDataOcclusionShapeEditor, TileDataEditor);
 

editor/plugins/tiles/tile_set_editor.cpp

@@ -298,6 +298,9 @@ void TileSetEditor::_notification(int p_what) {
 			break;
 		case NOTIFICATION_INTERNAL_PROCESS:
 			if (tile_set_changed_needs_update) {
+				if (tile_set.is_valid()) {
+					tile_set->set_edited(true);
+				}
 				_update_atlas_sources_list();
 				tile_set_changed_needs_update = false;
 			}
@@ -445,7 +448,7 @@ TileDataEditor *TileSetEditor::get_tile_data_editor(String p_property) {
 	} else if (p_property == "probability") {
 		return tile_data_float_editor;
 	} else if (p_property == "y_sort_origin") {
-		return tile_data_position_editor;
+		return tile_data_y_sort_editor;
 	} else if (p_property == "texture_offset") {
 		return tile_data_texture_offset_editor;
 	} else if (components.size() >= 1 && components[0].begins_with("occlusion_layer_")) {
@@ -575,7 +578,7 @@ TileSetEditor::~TileSetEditor() {
 
 	// Delete tile data editors.
 	memdelete(tile_data_texture_offset_editor);
-	memdelete(tile_data_position_editor);
+	memdelete(tile_data_y_sort_editor);
 	memdelete(tile_data_integer_editor);
 	memdelete(tile_data_float_editor);
 	memdelete(tile_data_occlusion_shape_editor);

editor/plugins/tiles/tile_set_editor.h

@@ -56,7 +56,7 @@ private:
 
 	// List of tile data editors.
 	TileDataTextureOffsetEditor *tile_data_texture_offset_editor = memnew(TileDataTextureOffsetEditor);
-	TileDataPositionEditor *tile_data_position_editor = memnew(TileDataPositionEditor);
+	TileDataYSortEditor *tile_data_y_sort_editor = memnew(TileDataYSortEditor);
 	TileDataIntegerEditor *tile_data_integer_editor = memnew(TileDataIntegerEditor);
 	TileDataFloatEditor *tile_data_float_editor = memnew(TileDataFloatEditor);
 	TileDataOcclusionShapeEditor *tile_data_occlusion_shape_editor = memnew(TileDataOcclusionShapeEditor);

scene/resources/tile_set.cpp

@@ -2351,11 +2351,11 @@ int TileData::get_z_index() const {
 	return z_index;
 }
 
-void TileData::set_y_sort_origin(Vector2i p_y_sort_origin) {
+void TileData::set_y_sort_origin(int p_y_sort_origin) {
 	y_sort_origin = p_y_sort_origin;
 	emit_signal("changed");
 }
-Vector2i TileData::get_y_sort_origin() const {
+int TileData::get_y_sort_origin() const {
 	return y_sort_origin;
 }
 
@@ -3020,7 +3020,7 @@ void TileData::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2I, "texture_offset"), "set_texture_offset", "get_texture_offset");
 	ADD_PROPERTY(PropertyInfo(Variant::COLOR, "modulate"), "set_modulate", "get_modulate");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "z_index"), "set_z_index", "get_z_index");
-	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2I, "y_sort_origin"), "set_y_sort_origin", "get_y_sort_origin");
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "y_sort_origin"), "set_y_sort_origin", "get_y_sort_origin");
 
 	ADD_GROUP("Terrains", "");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "terrain_set"), "set_terrain_set", "get_terrain_set");
@@ -3866,6 +3866,12 @@ void TileSetPluginAtlasRendering::tilemap_notification(TileMap *p_tile_map, int
 				}
 			}
 		} break;
+		case CanvasItem::NOTIFICATION_DRAW: {
+			Ref<TileSet> tile_set = p_tile_map->get_tileset();
+			if (tile_set.is_valid()) {
+				RenderingServer::get_singleton()->canvas_item_set_sort_children_by_y(p_tile_map->get_canvas_item(), tile_set->is_y_sorting());
+			}
+		} break;
 	}
 }
 
@@ -3978,7 +3984,11 @@ void TileSetPluginAtlasRendering::update_dirty_quadrants(TileMap *p_tile_map, Se
 					int z_index = tile_data->get_z_index();
 
 					// Quandrant pos.
-					Vector2 position = p_tile_map->map_to_world(q.coords * p_tile_map->get_effective_quadrant_size()) - tile_set->get_tile_size() / 2;
+					Vector2 position = p_tile_map->map_to_world(q.coords * p_tile_map->get_effective_quadrant_size());
+					if (tile_set->is_y_sorting()) {
+						// When Y-sorting, the quandrant size is sure to be 1, we can thus offset the CanvasItem.
+						position.y += tile_data->get_y_sort_origin();
+					}
 
 					// --- CanvasItems ---
 					// Create two canvas items, for rendering and debug.
@@ -3986,16 +3996,18 @@ void TileSetPluginAtlasRendering::update_dirty_quadrants(TileMap *p_tile_map, Se
 
 					// Check if the material or the z_index changed.
 					if (prev_canvas_item == RID() || prev_material != mat || prev_z_index != z_index) {
+						// If so, create a new CanvasItem.
 						canvas_item = rs->canvas_item_create();
 						if (mat.is_valid()) {
 							rs->canvas_item_set_material(canvas_item, mat->get_rid());
 						}
 						rs->canvas_item_set_parent(canvas_item, p_tile_map->get_canvas_item());
 						rs->canvas_item_set_use_parent_material(canvas_item, p_tile_map->get_use_parent_material() || p_tile_map->get_material().is_valid());
+
 						Transform2D xform;
 						xform.set_origin(position);
-
 						rs->canvas_item_set_transform(canvas_item, xform);
+
 						rs->canvas_item_set_light_mask(canvas_item, p_tile_map->get_light_mask());
 						rs->canvas_item_set_z_index(canvas_item, z_index);
 

scene/resources/tile_set.h

@@ -504,7 +504,7 @@ private:
 	Ref<ShaderMaterial> material = Ref<ShaderMaterial>();
 	Color modulate = Color(1.0, 1.0, 1.0, 1.0);
 	int z_index = 0;
-	Vector2i y_sort_origin = Vector2i();
+	int y_sort_origin = 0;
 	Vector<Ref<OccluderPolygon2D>> occluders;
 
 	// Physics
@@ -563,8 +563,8 @@ public:
 	Color get_modulate() const;
 	void set_z_index(int p_z_index);
 	int get_z_index() const;
-	void set_y_sort_origin(Vector2i p_y_sort_origin);
+	void set_y_sort_origin(int p_y_sort_origin);
-	Vector2i get_y_sort_origin() const;
+	int get_y_sort_origin() const;
 
 	void set_occluder(int p_layer_id, Ref<OccluderPolygon2D> p_occluder_polygon);
 	Ref<OccluderPolygon2D> get_occluder(int p_layer_id) const;