How can I show an empty gui by key pressing

[Klarks]

I'm just starting to learn minecraft modding and would like to understand how i can display an empty gui by pressing the key. 

I tried to figure it out myself from the vanilla minecraft code and tutorials, but I could not understand how it all works

[poopoodice]

What is an empty gui? If it does not store any information (e.g. inventories, sharing data) a simple screen will work using Minecraft#displayGuiScreen (this is client only).

Otherwise you will need a registered container and screen, and open it with NetworkHooks#openGui (this should be done on server, in this case you send a packet when the key is pressed).

There's a key input event that you can use, or use client tick event to proceed with keybindings (check Minecraft.java).

[Klarks]

Thanks for the tip. How to make a gui as a standard player inventory for storing resources, but with 1 cell. What i should use? I saw tutorials and people uses tileentity, containers but which of this do I need and what function do they perform. I wanna start with simple things 

[poopoodice]

Where will you be storing things at? Is it going to be saved per player, or itemstacks?

Both of them can use capabilities.

https://mcforge.readthedocs.io/en/latest/datastorage/capabilities/

Edited January 8, 2021 by poopoodice

[Klarks]

What's the difference between saving per player and itemstacks

[Klarks]

So itemstack allow to create a bag? I want to make an extra slot for players.  Do I need to use an entity for this? 

[Klarks]

How can i do it? I don't quite understand what capability is and how to attach it to the player

[Klarks]

Thanks for the tips i made a single stack chest. But how i can fix the inventory title pos and how should i call the lang variable to change the  chest name

 

Edited January 8, 2021 by Klarks

[Beethoven92]

Well, if you use this texture for the GUI there will never be space to write "Inventory" in a human-readable character size such as it fits that little gap 😆 To change how things are rendered/placed in your GUI you need to do that in the render method of your custom screen class

[Klarks]

That's not a problem it was just a placeholder. What i should change or add here i couldn't find anything similar in the vanilla code

@Override
public void render(MatrixStack matrixStack, int mouseX, int mouseY, float partialTicks) {
    this.renderBackground(matrixStack);
    super.render(matrixStack, mouseX, mouseY, partialTicks);
    this.renderHoveredTooltip(matrixStack, mouseX, mouseY);
}

[Klarks]

That one should be ok

[poopoodice]

Don't call super and render it yourself, or just not render it.

[Klarks]

I fixed by adding this.playerInventoryTitleY = 42;

@Override
public void render(MatrixStack matrixStack, int mouseX, int mouseY, float partialTicks) {
    this.renderBackground(matrixStack);
    //this.playerInventoryTitleX = 10;
    this.playerInventoryTitleY = 42;
    super.render(matrixStack, mouseX, mouseY, partialTicks);
    this.renderHoveredTooltip(matrixStack, mouseX, mouseY);
}

[poopoodice]

I just noticed that the titles are actually rendered in drawGuiContainerForegroundLayer() not render().

Also I believe you only need to set the value once in the constructor, or in init().

[Klarks]

Thanks i found it. I'd better use it