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# Widgets
What are widgets
Widgets are reusable UI components that simplify the creation and management of user interfaces in your game.
## What is widget
Before widget, there are a "custom components". Widgets goes to replace custom components. Basically, it's totally the same thing, only the difference to initialize it.
Let's see at basic custom component template:
Before widgets, there were "custom components". Widgets replace custom components. Basically, they're the same thing, with the only difference being how they're initialized.
Let's see a basic custom component template:
```lua
local component = require("druid.component")
local M = component.create("my_component")
function M:init(template, nodes, output_string)
self:set_template(template)
self:set_nodes(nodes)
self.druid = self:get_druid()
self:set_template(template)
self:set_nodes(nodes)
self.druid = self:get_druid()
self.druid:new_button("button_node_name", print, output_string)
self.druid:new_button("button_node_name", print, output_string)
end
```
So the basic components we created with `druid:new()` function.
Basic components are created with the `druid:new()` function:
```lua
local my_component = druid:new("my_component", template, nodes, "Hello world!")
```
Now, let's see how to do it with widgets:
```lua
---@type my_widget: druid.widget
local M = {}
function M:init(output_string)
self.druid:new_button("button_node_name", print, output_string)
self.druid:new_button("button_node_name", print, output_string)
end
return M
```
That's all! The same thing, but no any boilerplate code, just a lua table. The druid instance, the templates and nodes are already created.
That's all! The same functionality but without any boilerplate code, just a Lua table. The Druid instance, templates and nodes are already created and available.
And you can create your own widgets like this:
```lua
local druid = require("druid.druid")
local my_widget = require("widgets.my_widget.my_widget")
function init(self)
self.druid = druid.new(self)
self.my_widget = self.druid:new_widget(my_widget, template, nodes, "Hello world!")
self.druid = druid.new(self)
self.my_widget = self.druid:new_widget(my_widget, template, nodes, "Hello world!")
end
```
So now the creation of "custom components" called as widgets is much easier and cleaner.
So now creating UI components with widgets is much easier and cleaner than using custom components.
## Create a new widget
Let's start from beginning. Widgets usually consist from 2 parts:
Let's start from the beginning. Widgets usually consist of 2 parts:
1. GUI scene
2. Widget lua module
2. Widget Lua module
Make a GUI scene of your widget (user portrait avatar panel, shop window, game panel menu, etc). Make it as you wish, but recomment to add a one `root` node with `name` `root` and make all your nodes as children of this node. This will make much easier to work with the widget.
Make a GUI scene of your widget (user portrait avatar panel, shop window, game panel menu, etc). Design it as you wish, but it's recommended to add one `root` node with the name `root` and make all your other nodes children of this node. This makes working with the widget much easier.
Let's create a new widget by creating a new file nearby the our GUI scene file.
Let's create a new widget by creating a new file next to our GUI scene file:
```lua
-- my_widget.lua
local M = {}
function M:init()
self.root = self:get_node("root")
self.button = self.druid:new_button("button_open", self.open_widget, self)
self.root = self:get_node("root")
self.button = self.druid:new_button("button_open", self.open_widget, self)
end
function M:open_widget()
print("Open widget pressed")
print("Open widget pressed")
end
return M
```
that's a basic about creation. Now we have a widget, where we ask for the root node and use node "button_open" as a button.
That's the basic creation process. Now we have a widget where we access the root node and use the "button_open" node as a button.
Now, let's create a widget inside you game scene.
Now, let's create a widget inside your game scene.
Place a widget (GUI template) on your main scene. Then you need to import druid and create a new widget instance over this GUI template placed on the scene.
Place a widget (GUI template) on your main scene. Then import Druid and create a new widget instance using this GUI template placed on the scene:
```lua
local druid = require("druid.druid")
local my_widget = require("widgets.my_widget.my_widget")
function init(self)
self.druid = druid.new(self)
self.my_widget = self.druid:new_widget(my_widget, "my_widget")
self.druid = druid.new(self)
self.my_widget = self.druid:new_widget(my_widget, "my_widget")
-- In case we want to clone it and use several times we can pass the nodes table
local array_of_widgets = {}
for index = 1, 10 do
local nodes = gui.clone_tree(self.my_widget.root)
local widget = self.druid:new_widget(my_widget, "my_widget", nodes)
table.insert(array_of_widgets, widget)
end
-- In case we want to clone it and use several times we can pass the nodes table
local array_of_widgets = {}
for index = 1, 10 do
local nodes = gui.clone_tree(self.my_widget.root)
local widget = self.druid:new_widget(my_widget, "my_widget", nodes)
table.insert(array_of_widgets, widget)
end
end
```