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**Druid** - powerful **Defold** component UI framework that empowers developers to create stunning and customizable GUIs by leveraging a wide range of embedded components or effortlessly designing their own game-specific components.
## Setup
### Dependency
To integrate the **Druid** extension into your own project, add this project as a [dependency](https://www.defold.com/manuals/libraries/) in your **Defold** game. Open your `game.project` file and add the following line to the dependencies field under the project section:
**Druid v0.10.3**
> [https://github.com/Insality/druid/archive/refs/tags/0.10.3.zip](https://github.com/Insality/druid/archive/refs/tags/0.10.3.zip)
Here is a list of [all releases](https://github.com/Insality/druid/releases).
### Input Bindings
**Druid** utilizes the `/builtins/input/all.input_binding` input bindings. For custom input bindings, refer to the Input Binding section in the **_[Advanced Setup](docs_md/advanced-setup.md)_**.
### Advanced Setup
If you need to customize **Druid** according to your specific requirements, you can refer to the **_[Advanced Setup](docs_md/advanced-setup.md)_** section.
## Usage
### Basic usage
To utilize **Druid**, begin by creating a **Druid** instance to instantiate components and include the main functions of **Druid**: *update*, *final*, *on_message*, and *on_input*.
When using **Druid** components, provide a node name string as an argument. If you don't have the node name available in some cases, you can pass `gui.get_node()` instead.
All **Druid** and component methods are invoked using the `:` operator, such as `self.druid:new_button()`.
```lua
local druid = require("druid.druid")
-- All component callbacks pass "self" as first argument
-- This "self" is a context data passed in `druid.new(context)`
local function on_button_callback(self)
print("The button clicked!")
end
function init(self)
self.druid = druid.new(self)
self.button = self.druid:new_button("button_node_name", on_button_callback)
end
-- "final" is a required function for the correct Druid workflow
function final(self)
self.druid:final()
end
-- "update" is used in progress bar, scroll, and timer basic components
function update(self, dt)
self.druid:update(dt)
end
-- "on_message" is used for specific Druid events, like language change or layout change
function on_message(self, message_id, message, sender)
self.druid:on_message(message_id, message, sender)
end
-- "on_input" is used in almost all Druid components
function on_input(self, action_id, action)
return self.druid:on_input(action_id, action)
end
```
For all **Druid** instance functions, [see here](https://insality.github.io/druid/modules/DruidInstance.html).
### API Documentation
**Druid** offers a wide range of components and functions. To facilitate usage, **Druid** provides comprehensive API documentation with examples and annotations.
Start reading the API documentation [here](https://insality.github.io/druid/modules/Druid.html).
### EmmyLua Annotations [optional]
[EmmyLua](https://emmylua.github.io/annotation.html) is a Lua annotation library. It is a useful tool for enabling Lua code autocompletion in editors such as [VSCode](https://github.com/EmmyLua/VSCode-EmmyLua) and [IntelliJ IDEA](https://github.com/EmmyLua/IntelliJ-EmmyLua).
Since dependencies cannot be processed by external editors, to use the generated EmmyLua annotations, you should copy the _druid/annotations.lua_ file to your project.
For EmmyLua, this will be sufficient. Remember that you can restart the EmmyLua server to refresh the changes if something goes wrong.
After the annotations are processed, you should specify the type of "Druid" in the "require" statement:
```lua
---@type druid
local druid = require("druid.druid")
-- Now the autocomplete is working
```
### Create custom components
If you want to create your own components, refer to the [Create Custom Components](docs_md/create-custom-components.md) section in the documentation.
Custom components are one of the most powerful features of **Druid**. They allow you to create your own components effortlessly and utilize them in your game.
## Druid Components
Here is full **Druid** components list.
### Basic Components
> Basic components always included in the build and available for use.
| Name | Description | Example | Preview
|
|------|-------------|---------|---------|
| **[Button](https://insality.github.io/druid/modules/Button.html)** | Logic over GUI Node. Handle the user click interactions: click, long click, double click, etc. | [Button Example](https://insality.github.io/druid/druid/?example=general_buttons) | 
|
| **[Text](https://insality.github.io/druid/modules/Text.html)** | Logic over GUI Text. By default Text component fit the text inside text node size area with different adjust modes. | [Text Example](https://insality.github.io/druid/druid/?example=texts_general) | 
|
| **[Scroll](https://insality.github.io/druid/modules/Scroll.html)** | Logic over two GUI Nodes: input and content. Provides basic behaviour for scrollable content. | [Scroll Example](https://insality.github.io/druid/druid/?example=general_scroll) | 
|
| **[Blocker](https://insality.github.io/druid/modules/Blocker.html)** | Logic over GUI Node. Don't pass any user input below node area size. | ❌ | |
| **[Back Handler](https://insality.github.io/druid/modules/BackHandler.html)** | Call callback on user "Back" action. It's a Android back button or keyboard backspace key | ❌ | |
| **[Static Grid](https://insality.github.io/druid/modules/StaticGrid.html)** | Logic over GUI Node. Component to manage node positions with all equal node sizes. | [Static Gid Example](https://insality.github.io/druid/druid/?example=general_grid) | 
|
| **[Hover](https://insality.github.io/druid/modules/Hover.html)** | Logic over GUI Node. Handle hover action over node. For both: mobile touch and mouse cursor. | ❌ | 
|
| **[Swipe](https://insality.github.io/druid/modules/Swipe.html)** | Logic over GUI Node. Handle swipe gestures over node. | [Swipe Example](https://insality.github.io/druid/druid/?example=general_swipe) | 
|
| **[Drag](https://insality.github.io/druid/modules/Drag.html)** | Logic over GUI Node. Handle drag input actions. Can be useful to make on screen controlls. | [Drag Example](https://insality.github.io/druid/druid/?example=general_drag) | 
|
### Extended components
> Extended components before usage should be registered in **Druid** with `druid.register()` function.
| Name | Description | Example | Preview
|
|------|-------------|---------|---------|
| **[Checkbox](https://insality.github.io/druid/modules/Checkbox.html)** | Switch node state on click event. | [Checkbox Example](https://insality.github.io/druid/druid/?example=general_checkboxes) | 
|
| **[Checkbox group](https://insality.github.io/druid/modules/CheckboxGroup.html)** | Group of checkbox components. | [Checkbox group Example](https://insality.github.io/druid/druid/?example=general_checkboxes) | 
|
| **[Radio group](https://insality.github.io/druid/modules/RadioGroup.html)** | Like checkbox group but with single choise only. | [Radio Group Example](https://insality.github.io/druid/druid/?example=general_checkboxes) | 
|
| **[Dynamic Grid](https://insality.github.io/druid/modules/DynamicGrid.html)** | Logic over GUI Node. Component to manage node positions with all different node sizes. Only one direction: horizontal or vertical. | [Dynamic Grid Example](https://insality.github.io/druid/druid/?example=general_grid) | 
|
| **[Data List](https://insality.github.io/druid/modules/DataList.html)** | Logic over Scroll and Grid components. Create only visible GUI nodes or components to make "infinity" scroll befaviour | [Data List Example](https://insality.github.io/druid/druid/?example=general_data_list) | 
|
| **[Input](https://insality.github.io/druid/modules/Input.html)** | Logic over GUI Node and GUI Text (or Text component). Provides basic user text input. | [Input Example](https://insality.github.io/druid/druid/?example=general_input) | 
|
| **[Lang text](https://insality.github.io/druid/modules/LangText.html)** | Logic over Text component to handle localization. Can be translated in real-time with `druid.on_language_change` | ❌ | 
|
| **[Progress](https://insality.github.io/druid/modules/Progress.html)** | Logic over GUI Node. Handle node size and scale to handle progress node size. | [Progress Example](https://insality.github.io/druid/druid/?example=general_progress_bar) | 
|
| **[Slider](https://insality.github.io/druid/modules/Slider.html)** | Logic over GUI Node. Handle draggable node with position restrictions. | [Slider Example]() | 
|
| **[Timer](https://insality.github.io/druid/modules/Timer.html)** | Logic over GUI Text. Handle basic timer functions. | ❌ | 
|
| **[Hotkey](https://insality.github.io/druid/modules/Hotkey.html)** | Allow to set callbacks for keyboard hotkeys with key modificators. | [Hotkey Example](https://insality.github.io/druid/druid/?example=general_hokey) | 
|
| **[Layout](https://insality.github.io/druid/modules/Layout.html)** | Logic over GUI Node. Handle node size depends on layout mode and screen aspect ratio. Contains helpers to build more complex UI layout. | [Layout Example](https://insality.github.io/druid/druid/?example=general_layout) | 
|
For a complete overview, see: **_[components.md](docs_md/01-components.md)_**.
## Druid Events
Any **Druid** components as callbacks use [Druid Events](https://insality.github.io/druid/modules/DruidEvent.html). In component API ([button example](https://insality.github.io/druid/modules/Button.html#on_click)) pointed list of component events. You can manually subscribe to these events with the following API:
- **event:subscribe**(callback)
- **event:unsubscribe**(callback)
- **event:clear**()
You can subscribe several callbacks to a single event.
## Details
- **Druid** processes input in a stack-based manner. The most recently created button will be checked first. Create your input GUI components from back to front.
- Remember to include `return` in the `on_input` function: `return self.druid:on_input()`. This is necessary if you have multiple input sources (multiple Druid instances, other input systems, etc.).
- Druid automatically calls `acquire_input_focus` if you have input components. Therefore, manual calling of `acquire_input_focus` is not required.
- When deleting a **Druid** component node, make sure to remove it using `druid:remove(component)`.
[See the full FAQ here](docs_md/FAQ.md)
## Examples
### HTML5 Live Examples
Try the [**HTML5 version**](https://insality.github.io/druid/druid/) of the **Druid** example app.
Each example page provides a direct link to the corresponding example code, making it easier for you to understand how to use **Druid**.
### Code Examples
Refer to the [**example folder**](https://github.com/Insality/druid/tree/develop/example) for code examples demonstrating how to use **Druid**.
## Documentation
To better understand **Druid**, read the following documentation:
- [Druid components](docs_md/01-components.md)
- [Create custom components](docs_md/02-creating_custom_components.md)
- [See FAQ article](docs_md/FAQ.md)
- [Druid styles](docs_md/03-styles.md)
You can fund the full **Druid** documentation here:
https://insality.github.io/druid/
## License
- Developed and supported by [Insality](https://github.com/Insality)
- Original idea by [AGulev](https://github.com/AGulev)
- Assets from [Kenney](http://www.kenney.nl/)
## Issues and suggestions
If you have any issues, questions or suggestions please [create an issue](https://github.com/Insality/druid/issues) or contact me: [insality@gmail.com](mailto:insality@gmail.com)
## ❤️ Support project ❤️
Your donation helps me stay engaged in creating valuable projects for **Defold**. If you appreciate what I'm doing, please consider supporting me!
[](https://github.com/sponsors/insality) [](https://ko-fi.com/insality) [](https://www.buymeacoffee.com/insality)