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✨ Easy-to-use UI framework for OpenRCT2 plugin developer.

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✨ Easy-to-use UI framework for OpenRCT2 plugin developer. [한국어]




✨ Getting Started

  1. Fork this repository. (It can be used as a base template for creating plugins.)
  2. Clone the forked repository in the directory reserved for development.
  3. Download file openrct.2.d.ts and put it in directory .../modules.
  4. Start developing your plugins in the directory .../develop.

🌍 Demo

images/demo.png

Most of the usage examples are included in the demo plugin.

See file plugin.ts in directory .../develop.


⚙ Development

Read more about development below.

🎢 Process

Plugin development using StackUI consists of the following steps.

  1. Construct a window
//Constructs a single tabbed window with a blank label.
UIWindow.$(
    UITab.$(
        UILabel.$("")
    )
);
  1. Preparing and setting up initial data
//Define and set the information to be displayed in the initial window.
const text = "Label";

UIWindow.$(
    UITab.$(
        UILabel.$(text)
    ).image(UIImageTabGears)
).title("Window");
  1. Defining Proxies
//Defines proxies for passing commands to the UI and responding to actions.
const windowProxy = UIWDP.$();
const labelProxy = UIWP.$<UILabel>();

const text = "Label";

UIWindow.$(
    UITab.$(
        UILabel.$(text)
    ).image(UIImageTabGears)
).title("Window");
  1. Binding Proxy
const windowProxy = UIWDP.$();
const labelProxy = UIWP.$<UILabel>();

const text = "Label";

//Bind the proxy to the UI.
UIWindow.$(
    UITab.$(
        UILabel.$(text).bind(labelProxy)
    ).image(UIImageTabGears)
).bind(windowProxy)
.title("Window");
  1. Binding UI Actions
const windowProxy = UIWDP.$();
const labelProxy = UIWP.$<UILabel>();

const text = "Label";

UIWindow.$(
    UITab.$(
        UILabel.$(text).bind(labelProxy)
    ).image(UIImageTabGears)
).bind(windowProxy)
.title("Window");

//Write code to run based on UI actions.
windowProxy.didAppear((window) => {
    console.log(window.getTitle());
    console.log(`before: ${labelProxy.ui?.getText()}`);
    labelProxy.updateUI((label) => {
        label.text(`${window.getTitle()} is opened.`);
    });
    console.log(`after: ${labelProxy.ui?.getText()}`);
});
  1. Open window
const windowProxy = UIWDP.$();
const labelProxy = UIWP.$<UILabel>();

const text = "Label";

UIWindow.$(
    UITab.$(
        UILabel.$(text).bind(labelProxy)
    ).image(UIImageTabGears)
).bind(windowProxy)
.title("Window");

windowProxy.didAppear((window) => {
    console.log(window.getTitle());
    console.log(`before: ${labelProxy.ui?.getText()}`);
    labelProxy.updateUI((label) => {
        label.text(`${window.getTitle()} is opened.`);
    });
    console.log(`after: ${labelProxy.ui?.getText()}`);
});

//Open a window based on the above.
windowProxy.show();

📄 Documents
💠 UIWindow
  • $: Initialize with widget list
  • $T: Initialize with tab list

Property

  • spacing
  • padding
  • origin
  • minSize
  • maxSize
  • isExpandable
  • title
  • selectedTabIndex
  • selectedTabName
  • theme

Action

  • show
  • updateUI
  • close
  • bringToFront
  • findWidget
  • bind
  • getUITab
  • getUIWidget

Handler

  • onClose
  • onTabChange
  • didLoad
  • didAppear
  • didDisappear
📑 UITab
  • $: Initialize with widget list

Property

  • name
  • spacing
  • padding
  • isExpandable
  • minSize
  • maxSize
  • image
  • title
  • theme
  • isHidden

Action

  • updateUI
  • bind
  • getUIWidget

Handler

  • didLoad
  • didAppear
  • didDisappear
🧒 UIWidget

Property

  • origin
  • offset
  • extends
  • size
  • minSize
  • occupiedSize
  • name
  • tooltip
  • isDisabled
  • isVisible
  • font
  • description

Action

  • updateUI
  • bind
  • resetSize

Handler

  • didLoad
  • didAppear
  • didDisapp

Drived widget

🛹 UIStack
  • $: Initialize with widget list
  • $V: Initialize the widget list by placing it vertically
  • $H: Initialize the widget list by placing it horizontally
  • $VG: Initialize by arranging the widget list vertically, and display the group box
  • $HG: Initialize by arranging the widget list horizontally, and display the group box

Property

  • axis
  • spacing
  • padding
  • isGrouped
  • title
  • childs
🏷️ UILabel
  • $: Initialize with string

Property

  • align
  • text

Handler

  • onChange
🌌 UISpacer
  • $: Initialize with spacing value

Property

  • axis
  • spacing
🔘 UIButton
  • $: Initialize to text
  • $I: Initialize to image

Property

  • border
  • image
  • isPressed
  • title

Action

  • isImageEqual

Handler

  • onClick

Derived widget

🔲 UIToggleButton

Action

  • toggle

Handler

  • onPress
🔄 UIPageImageButton
  • $IP: Initialize with image list

Action

  • images
  • currentIndex

Handler

  • onPage

🔁 UISpinner
  • $: Initialize to default value

Property

  • range
  • step
  • fixed
  • value
  • formatter

Action

  • dialogueInfo

Handler

  • onChange
✅ UICheckbox
  • $: Initialize to title
  • $UN: Initialize without title

Property

  • isChecked
  • text

Action

  • toggle

Handler

  • onChange
🔽 UIDropdown
  • $: Initialize with string list

Property

  • items
  • selectedIndex

handler

  • onChange
🔳 UIColorpicker
  • $: Initialize to color

Property

  • color

Handler

  • onChange
🖼️ UIImageView
  • $: Initialize to image

Property

  • image
  • theme
🎑 UIViewport
  • $: Initialize to default value

Property

  • position
  • rotation
  • zoom
  • flags
  • centerPosition

Action

  • moveTo
  • scrollTo
  • scrollToMainViewportCenter
  • moveToMainViewportCenter
  • mainViewportScrollToThis
📃 UIListView
  • $: Initialize with column list

Property

  • scrollbarType
  • isStriped
  • showColumnHeaders
  • selectedCell
  • canSelect
  • columnData
  • itemData
  • highlightedCell
  • columns
  • items

Action

  • addColumn(s)
  • addItem(s)
  • clearAllItems

Handler

  • onHighlight
  • onClick

Child element

🏷️ UIListViewColumn
  • $: Initialize to default width
  • $F: Initialize to fixed column width
  • $R: Initialize to range column width
  • $W: Initialize to percentage column width

Property

  • sortOrder
  • canSort
  • tooltip
⚪ UIListViewItem
  • $: Initialize with string list
  • $S: Initialize to string as separator

Property

  • isSeparator
  • elements

📄 UITextbox
  • $: Initialize to string

Property

  • text
  • maxLength

Handler

  • onChange

🛰️ UIProxy
  • $: Default Initializer

Property

  • ui

Action

  • updateUI

Handler

  • didLoad
  • didAppear
  • didDisappear

Derived proxy

💠 UIWindowProxy (UIWDP)

Action

  • show
  • close

Handler

  • onTabChange
  • onClose
📑 UITabProxy (UITP)
🧒 UIWidgetProxy (UIWP)

Handler

  • onClick
  • onChange

🖼️ UIImage
  • $: Initialize to single image
  • $A: Initialize as a continuous image
  • $F: Initialize with non-contiguous images

Property

  • isAnimatable
  • duration
  • offset
  • singleFrame
  • size
  • description
  • string

Action

  • isEqual
🏗️ TextBuilder (TB)
  • $: Initialize as text node

Property

  • font
  • outline
  • color
  • description

Action

  • build

Child element

⭐ TextNode (TN)
  • $: Initialize with text node list
  • $S: Initialize to string
  • $I: Initialize to image
  • $NL: Initialize to newline node

Property

  • outline
  • color

⛑️ Helper
⏲️ IntervalHelper

Global: intervalHelper

Action

  • start
  • enabled
  • end
🖼️ ImageHelper

Global: imageHelper

Action

  • graphicsContext

🧩 UI Hierarchy

images/stack.png

The containment relationship is:

UIWindow
    └ UITab (optional)
        └ UIStack (optional)
            └ UIWidget (UILabel, UIButton, ...)
            └ UIListView
                └ UIListViewColumn
                └ UIListViewItem
🔎 Find UI

You can usually control widgets through a proxy. However, you may want to use the UI without binding a proxy.


After setting the name of the UI item directly, use the function below.

  1. UIWindow
    • getUITab
    • getUIWidget
  2. UITab
    • getUIWidget
🔃 Update UI

In general, you can update the UI by modifying the properties within the updateUI block.

const proxy = UIWP.$<UIButton>();

//...

proxy.onClick((w) => {
    w.updateUI(() => {
        w.isPressed(w.getIsPressed());
    });
});

It is possible to update the UI outside of the update block, but it is not recommended. It can cause unpredictable side effects.

const proxy = UIWP.$<UIButton>();

//...

proxy.onClick((w) => {
    w.isPressed(w.getIsPressed());
    w.updateUI();
});

💡 For windows and tabs, if some settings are changed, 
the window may reopen internally for the changes to take effect. 
This is independent of the life cycle.
♻️ UI Life Cycle

images/lifecycle.png

In StackUI, UI has a lifecycle and provides hooks according to its state.


  1. didLoad
    • It is only called once when the UI is first loaded.
  2. didAppear
    • Called whenever the UI appears on the screen.
    • For UITab, it is called when activated.
    • It has nothing to do with UIWidget.isVisible.
  3. didDisappear
    • Called whenever the UI disappears on the screen.
    • For UITab, it is called when deactivated.
    • It has nothing to do with UIWidget.isVisible.
🖼️ Using Image

Images are initialized with sprite numbers. (See the comments on UIImageConstants for related information.)


UIImages can be divided into 3 types:

  1. Sigle Image
    • You can use it anywhere you use the image.
  2. Continuous Image
    • Available only on tabs and buttons.
  3. Non-Continuous Image
    • A custom type, currently only available for buttons.

Commonly used images are predefined and included in UIImageConstants.

💡 The amount of code included in the plugin can be burdensome,
so please comment out unused images.
🥂 Styled Text

TextBuilder allows you to create a styled string by combining TextNodes.

There are 3 types of TextNode.

  1. StringNode
    • A string node.
    • You can break the line with \n.
  2. ImageNode
    • Inserts an image between string nodes.
  3. NewlineNode
    • A newline node.
    • Display the next node starting from the next line.

TextBuilder defines the font of the string, and TextNode defines the color and outline of the string.


The following are the examples included in the demo.

images/textbuilder.png

const formatted = TB.$(
        TN.$(
            TN.$I(UIImageShopItemChips),
            TN.$(
                TN.$S("Chips\n..."),
                TN.$(
                    TN.$S((1432).format(TextFormat.StringId, 53))
                        .color(TextColor.BabyBlue),
                    TN.$NL()
                ).outline()
            ).color(TextColor.Celadon),
            TN.$S((767).format(TextFormat.StringId, 77)),
            TN.$I(UIImageShopItemDoughnut),
            TN.$I(UIImageShopItemIceCream)
        ).color(TextColor.Topaz)
    ).build();
📑 Learn more

Position and size of the UI

  • The size of the window is automatically adjusted within the minimum and maximum sizes based on the size of the widget.
  • Widgets that are not sized are automatically scaled according to the size of the window.
  • Widgets that are not sized are placed at regular intervals in the stack.
  • Some widgets have a fixed height or width depending on their nature.

🚀 Building

Now let's apply the plugin you developed.

(This description is based on TypeScript.)

First, install the dependent modules.

npm install

🏗️ Build

npm run build

Outputs file plugin.js to directory .../develop.

⚠ All StackUI-related code is included in the plugin you develop.
This is because the `openrct2.d.ts` file, which is the basis of StackUI,
is updated at short intervals, and compatibility issues may occur.

🔄 Auto Build

npm run watch

Whenever the plugin.js file is output by the npm run build command, it is copied to the plugin folder.

❗Tip. Enabling Hot Reload (Windows)

Open file .../Users/User/Documents/OpenRCT2/config.ini, change enable_hot_reloading = false to enable_hot_reloading = true and save.

📀 Distribution

npm run build-product

Outputs the optimized plugin file, plugin.min.js, in the directory .../develop.

The default configuration is borrowed from plugin-devtools.


📜 License

This project is licensed under the MIT licence.