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

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).

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 

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, 20214 yr by poopoodice

What's the difference between saving per player and itemstacks

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? 

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

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, 20214 yr by Klarks

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

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);
}

That one should be ok

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

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);
}

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().

Thanks i found it. I'd better use it