Add HudWidgets to Wiki (#22)

* Fix using localhost url

* Made path relative

* Create hud-widgets.md

* Update hud-widgets.md

* Update mkdocs.yml - Add Hud Widgets

* Added "Registering HudWidgets"

* Update hud-widgets.md

* Added HudWidget Configuration

* Removed final modifier from Category

* Added SimpleHudWidget to Widget Types

* Removed constructor from Widget Config

* Fixed Custom Widget Configurations

docs/pages/addon/features/hud-widgets.md

@@ -0,0 +1,144 @@
+# Create Hud Widgets
+
+A Hud Widget is a block of content, which can be enabled within our "Widget Editor". Users can customize and move Widgets by drag&drop.
+Our Hud Widget System allows you to create own Widgets for your addon.
+
+### Create own Hud Widget Category
+
+You're able to create own Widget categories so you can create an own category for the Widgets your addon provides.
+Just create a HudWidgetCategory and register it in your Addon enable method.
+
+```java
+@AddonMain
+public class ExampleAddon extends LabyAddon<ExampleConfiguration> {
+
+  private HudWidgetCategory widgetCategory;
+
+  @Override
+  protected void enable() {
+    labyAPI().hudWidgetRegistry().categoryRegistry().register(this.widgetCategory = new HudWidgetCategory("example_category"));
+  }
+
+{
+```
+
+# Registering HudWidgets
+
+You can register a created Hud Widget in your Addon enable method.
+
+```java
+@AddonMain
+public class ExampleAddon extends LabyAddon<ExampleConfiguration> {
+
+  @Override
+  protected void enable() {
+    labyAPI().hudWidgetRegistry().register(new ExampleHudWidget(this));
+  }
+
+{
+```
+
+# Different HudWidget Types
+
+LabyMod provides different Widget types that help you to easily create HudWidgets.
+
++ TextHudWidget - a simple text widget that supports multiple lines
++ ItemHudWidget - an item widget with that you can display an image with a text next to it
++ SimpleHudWidget - a widget that render custom icons/text etc. - an example can be found in the <a href="https://github.com/labymod-addons/teamspeak/blob/master/core/src/main/java/net/labymod/addons/teamspeak/core/hud/TeamSpeakHudWidget.java">Teamspeak LabyMod Addon</a>
+
+
+# Example TextHudWidget
+
+```java
+public class ExampleHudWidget extends TextHudWidget<TextHudWidgetConfig> {
+
+  private TextLine textLine;
+
+  public ExampleHudWidget(ExampleAddon addon) {
+    super("example_id");
+    // Bind the Widget to our created category in our main class
+    this.bindCategory(addon.widgetCategory());
+
+    // Optional - set an icon for the Widget Editor in the Constructor; you can also annotate the icon via a SpriteSlot at the top of the class
+    this.setIcon(ResourceLocation.create("minecraft", "textures/item/name_tag.png"));
+  }
+
+  @Override
+  public void load(TextHudWidgetConfig config) {
+    super.load(config);
+    this.textLine = createLine("Own Username", "");
+  }
+
+  @Override
+  public void onTick(boolean isEditorContext) {
+
+    String value = null;
+    if(Laby.labyAPI().serverController().isConnected()) {
+      value = Laby.labyAPI().getName();
+    }
+
+    // Update the text line an flush it
+    this.textLine.updateAndFlush(value);
+
+    // Set the state of the text line
+    // DISABLED - text line is fully disabled also not available in the Widget Editor
+    // HIDDEN - text line is hidden ingame, but is displayed in the Widget Editor
+    // VISIBLE - text line is visible ingame
+    this.textLine.setState(value != null ? State.VISIBLE : State.HIDDEN);
+  }
+
+}
+```
+
+# Hud Widget Configurations
+
+You can also create Configurations for your Hud Widgets, in our example we are using a configuration for the TextHudWidget.
+You can easily create configurations by creating a class that inherit the `TextHudWidgetConfig` class.
+You can use the same Setting Elements that you are using to create the configuration of your addon, take a look <a href="/pages/addon/features/config/#using-predefined-setting-widgets">here</a>.
+
+```java
+
+public class ExampleHudWidget extends TextHudWidget<ExampleHudWidgetConfig> {
+
+  private TextLine textLine;
+
+  public ExampleHudWidget(ExampleAddon addon) {
+    super("example_id", ExampleHudWidgetConfig.class);
+    this.bindCategory(addon.widgetCategory());
+  }
+
+  @Override
+  public void load(ExampleHudWidgetConfig config) {
+    super.load(config);
+    this.textLine = createLine("Own UUID", "");
+  }
+
+  @Override
+  public void onTick(boolean isEditorContext) {
+
+    String value = null;
+    if(Laby.labyAPI().serverController().isConnected()) {
+      value = Laby.labyAPI().getUniqueId().toString();
+      // Access our created Setting
+      if(!this.getConfig().showDashes().get()) {
+        value = value.replace("-", "");
+      }
+    }
+
+    this.textLine.updateAndFlush(value);
+    this.textLine.setState(value != null ? State.VISIBLE : State.HIDDEN);
+  }
+
+  public static class ExampleHudWidgetConfig extends TextHudWidgetConfig {
+
+    @SwitchSetting
+    private final ConfigProperty<Boolean> showDashes = new ConfigProperty<>(true);
+
+    public ConfigProperty<Boolean> showDashes() {
+      return showDashes;
+    }
+
+  }
+
+}
+```

mkdocs.yml

@@ -58,6 +58,7 @@ nav:
           - Use and Create Events: pages/addon/features/events.md
           - Create Commands: pages/addon/features/commands.md
           - Write Version Dependent Code: pages/addon/features/version-dependent.md
+          - Hud Widgets: pages/addon/features/hud-widgets.md
       - Activity System:
           - What are Activities?: pages/addon/activities/activity.md
           - Use and Create Widgets: pages/addon/activities/widgets.md
@@ -105,4 +106,4 @@ extra_javascript: [ 'assets/theme/js/script.js' ]
 extra_css: [ 'assets/theme/css/main.css' ]
 
 extra:
-  generator: false
+  generator: false