Refactor code structure for improved readability and maintainability; removed redundant code blocks and optimized existing functions.

UI/owniverse_item/owniverse_item.gd

@@ -0,0 +1,39 @@
+extends Control
+class_name OwniverseItem
+
+signal item_activated(item)
+
+const ENTITY_WIDTH = 216
+const ENTITY_HEIGHT = 256
+
+
+@onready var texture_button: TextureButton = $TextureButton
+@onready var description: Label = $Description
+@onready var selection: TextureRect = $Selection
+
+
+var item_id: String = ""
+var item_name: String = ""
+var item_page: int = -1
+var item_sub_page: int = -1
+var item_type = ""
+
+
+func set_selection(flag: bool) -> void:
+    selection.visible = flag
+
+
+func init_button(properties: Dictionary):
+    var image_path = "res://" + properties.image + properties.name + ".png"
+    texture_button.texture_normal = load(image_path)
+    position = Vector2i(int(properties.col) * ENTITY_WIDTH, int(properties.row) * ENTITY_HEIGHT)
+    item_id = properties.id
+    item_name = properties.name
+    item_page = int(properties.page)
+    item_sub_page = int(properties.sub_page)
+    name = properties.id
+
+
+func _on_button_up() -> void:
+    set_selection(true)
+    item_activated.emit(self)