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[1.15] Adding a Button to a player inventory


Swirls

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Hello,

 

So short story, I am trying to make a button in a player inventory that will lead to a custom GUI.

For version 1.12 I think you use `InitGuiEvent`.

I've been told i could use method called `addWidget` but I am not sure what event should I use.

Any help would be really appreciated.

 

Thanks.

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Yes, you need to subscribe to `GuiScreenEvent.InitGuiEvent.Pr

e event)` in order to add widgets, the event itself has a method `addWidget`.
Here's an example of how it could be used:

@SubscribeEvent
public void addCustomButtonToInventory(GuiScreenEvent.InitGuiEvent.Pre event)
{
  if (event.getGui() instanceof InventoryScreen)
  {
    event.addWidget(new Button(x, y, width, height, text, button -> {
      Minecraft.getInstance().displayGuiScreen(new CustomGUI());
    }));
  }
}

If you aren't familiar with the `button -> {...}` syntax, this Button constructor takes an Button.IPressable as a parameter, which is the behavior that happens when you click. Equivalent code would look like this:

@SubscribeEvent
public void addCustomButtonToInventory(GuiScreenEvent.InitGuiEvent.Pre event)
{
  if (event.getGui() instanceof InventoryScreen)
  {
    event.addWidget(new Button(x, y, width, height, text, new CustomAction()));
  }
}

class CustomAction implements IPressable {
  public void onPress(Button button) {
    Minecraft.getInstance().displayGuiScreen(new CustomGUI());
  }
}

Hope this helps!

  • Like 1
  • Thanks 1

Have you ever want the new operator to return a type that you didn't ask for? Well, now you can!

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1 minute ago, Vinyarion said:

Yes, you need to subscribe to `GuiScreenEvent.InitGuiEvent.Pr

e event)` in order to add widgets, the event itself has a method `addWidget`.
Here's an example of how it could be used:


@SubscribeEvent
public void addCustomButtonToInventory(GuiScreenEvent.InitGuiEvent.Pre event)
{
  if (event.getGui() instanceof InventoryScreen)
  {
    event.addWidget(new Button(x, y, width, height, text, button -> {
      Minecraft.getInstance().displayGuiScreen(new CustomGUI());
    }));
  }
}

If you aren't familiar with the `button -> {...}` syntax, this Button constructor takes an Button.IPressable as a parameter, which is the behavior that happens when you click. Equivalent code would look like this:


@SubscribeEvent
public void addCustomButtonToInventory(GuiScreenEvent.InitGuiEvent.Pre event)
{
  if (event.getGui() instanceof InventoryScreen)
  {
    event.addWidget(new Button(x, y, width, height, text, new CustomAction()));
  }
}

class CustomAction implements IPressable {
  public void onPress(Button button) {
    Minecraft.getInstance().displayGuiScreen(new CustomGUI());
  }
}

Hope this helps!

Exactly what I needed, explained well. Thank you very much for your time!

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1 hour ago, Swirls said:

@Vinyarion, sorry for mentioning you!
So when adding widget  


x, y, width, height, text,

is a position of the button in pixels?

Yes

1 hour ago, Swirls said:

And what does "text" do?

It puts text on the button so that the button has the text "text"

1 hour ago, Swirls said:

And can I remove CustomAction so i can only test a button without function to it?

  

No, but if you want no functionality, leave the function empty.

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable.  If you think this is the case, JUST REPORT ME.  Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

 

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

 

DO NOT PM ME WITH PROBLEMS. No help will be given.

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54 minutes ago, Draco18s said:

Yes

It puts text on the button so that the button has the text "text"

No, but if you want no functionality, leave the function empty.

Oh yea, thanks, this might be stupid question but i dont seem to understand where should i call the event? 

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10 minutes ago, Swirls said:

but i dont seem to understand where should i call the event? 

You mean this:

17 hours ago, Swirls said:

public void addCustomButtonToInventory(GuiScreenEvent.InitGuiEvent.Pre event)

 

Its an event handler. You don't call it. It's called automatically.

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable.  If you think this is the case, JUST REPORT ME.  Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

 

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

 

DO NOT PM ME WITH PROBLEMS. No help will be given.

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unknown.png

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable.  If you think this is the case, JUST REPORT ME.  Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

 

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

 

DO NOT PM ME WITH PROBLEMS. No help will be given.

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