I was wondering how to remove an item from a slot in my GUI.

I currently have 2 slots, and I want to, when the user clicks a button in the GUI, to remove it from the slot and then place a different item into the second slot.

 

I have the button setup like this currently in the Screen class:

@Override
protected void drawGuiContainerForegroundLayer(int mouseX, int mouseY) {
	super.drawGuiContainerForegroundLayer(mouseX, mouseY);
	this.font.drawString(this.title.getFormattedText(), 51.0f, 6.0f, 4210752);
	this.font.drawString(this.playerInventory.getDisplayName().getFormattedText(), 8.0f, 112.0f, 4210752);
	
	this.addButton(new ImageButton(this.guiLeft + 77, this.guiTop + 24, 21, 20, 0, 208, 21, BACKGROUND_TEXTURE, (e) ->  {
		System.out.println("Hello");
		
	}));
}

 

And the PlayerInventory, along with the two slots are initialised inside of the Container class  constructor here:

this.addSlot(new Slot(tileEntity, 0, 16, 26));
this.addSlot(new Slot(tileEntity, 1, 52, 26));

 

Howdy

This tutorial project has two working examples of containers with GUI that you might perhaps find useful

https://github.com/TheGreyGhost/MinecraftByExample

(mbe30, mbe31)

Add the button to your ContainerScreen, and as dieSieben says, send a packet to the server when your button is clicked (if you don't know how, see mbe60 for clues) and forward it to your server-side container code to actually move the items.

 

-TGG