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tutorial:screen

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tutorial:screen [2023/04/21 10:35] – solidblocktutorial:screen [2023/12/18 01:38] (current) – [Adding text] solidblock
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 ====== Creating a screen ====== ====== Creating a screen ======
  
-A **screen** is a graphical user interface that extends ''Screen'', allowing the user to interact and fulfill some functionalities. One example of a screen is a custom config screen of your mod. Screens only exist in the client, so you must annotate them with ''@Environment(EnvType.CLIENT)''.+A **screen** is a graphical user interface that extends ''Screen'', allowing the user to interact and fulfill some functionalities. One example of a screen is a custom config screen of your mod. Screens only exist in the client, so you can annotate the relavant classes with ''@Environment(EnvType.CLIENT)''.
  
 You may use mixins to add into an existing screen a button that goes to your screen. But in many cases, we can implement the ''ModMenuApi'' of Mod Menu mod, and make it possible to access the screen via the config button in the Mod Menu screen. This article does document how to implement ''ModMenuApi''. You may use mixins to add into an existing screen a button that goes to your screen. But in many cases, we can implement the ''ModMenuApi'' of Mod Menu mod, and make it possible to access the screen via the config button in the Mod Menu screen. This article does document how to implement ''ModMenuApi''.
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 In ''render'' method, you can invoke methods like ''textRenderer.draw'', ''drawTextWithShadow'' or ''drawCenteredTextWithShadow'' to render a text on the screen. In ''render'' method, you can invoke methods like ''textRenderer.draw'', ''drawTextWithShadow'' or ''drawCenteredTextWithShadow'' to render a text on the screen.
 <code java> <code java>
 +  // For versions 1.20 below
   @Override   @Override
   public void render(MatrixStack matrices, int mouseX, int mouseY, float delta) {   public void render(MatrixStack matrices, int mouseX, int mouseY, float delta) {
     super.render(matrices, mouseX, mouseY, delta);     super.render(matrices, mouseX, mouseY, delta);
     drawCenteredTextWithShadow(matrices, textRenderer, Text.literal("You must see me"), width / 2, height / 2, 0xffffff);     drawCenteredTextWithShadow(matrices, textRenderer, Text.literal("You must see me"), width / 2, height / 2, 0xffffff);
 +  }
 +  
 +  // For versions 1.20 and after
 +  @Override
 +  public void render(DrawContext context, int mouseX, int mouseY, float delta) {
 +    super.render(context, mouseX, mouseY, delta);
 +    context.drawCenteredTextWithShadow(textRenderer, Text.literal("You must see me"), width / 2, height / 2, 0xffffff);
   }   }
 </code> </code>
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 <code java> <code java>
     final MultilineText multilineText = MultilineText.create(textRenderer, Text.literal("The text is pretty long ".repeat(20)), width - 20);     final MultilineText multilineText = MultilineText.create(textRenderer, Text.literal("The text is pretty long ".repeat(20)), width - 20);
 +    
 +    // For versions 1.20 below
     multilineText.drawWithShadow(matrices, 10, height / 2, 16, 0xffffff);     multilineText.drawWithShadow(matrices, 10, height / 2, 16, 0xffffff);
 +    // For versions 1.20 and after
 +    multilineText.drawWithShadow(context, 10, height / 2, 16, 0xffffff);
 </code> </code>
  
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 ===== Scrolling ===== ===== Scrolling =====
-The screen does not support scrolling. If you'd like to add a list of masses of elements, please try using ''AlwaysSelectedEntryListWidget'' or ''ElementListWidget''.+The screen does not support scrolling, but you can add widgets that supports scrolling. ''<yarn class_350>'' is a class for widgets that contains multiple entries and supports scrolling. However, instead of directly extending it, it is more suitable to extend ''<yarn class_4280>'' or ''<yarn class_4265>'', which already implemented navigation and narration. The difference is: 
 + 
 +  * ''<yarn class_4280>'' refers to a widget in which you can select a row. In widgets that extends the class, you usually select one entry in the list. Some vanilla examples are biome selection screen in the buffet (single biome) world option, and the language selection screen. 
 +  * ''<yarn class_4265>'' refers to a widget where each row has child elements. In widgets that extends this class, you select and interacts the elements in the rows. Like a ''Screen'', the ''<yarn class_4265>.<yarn class_4266>'' should have zero, one, or more child elements.
  
 ===== Things to check before finishing ===== ===== Things to check before finishing =====
tutorial/screen.1682073316.txt.gz · Last modified: 2023/04/21 10:35 by solidblock