feat: made sure the aspect ration fit a pixel art game and added useful addons

addons/guide/editor/utils.gd

@@ -0,0 +1,22 @@
+## Removes and frees all children of a node.
+static func clear(node:Node):
+	if not is_instance_valid(node):
+		return
+	for child in node.get_children():
+		node.remove_child(child)
+		child.queue_free()
+
+
+## Checks if the given resource is an inline resource. If so, returns a shallow copy,
+## otherwise returns the resource. If the resource is null, returns null.
+static func duplicate_if_inline(resource:Resource) -> Resource:
+	if is_inline(resource):
+		return resource.duplicate()
+	return resource
+	
+
+## Checks if the given resource is an inline resource.
+static func is_inline(resource:Resource) -> bool:
+	if resource == null:
+		return false
+	return resource.resource_path.contains("::") or resource.resource_path == ""