ScreenJS
Download: CurseForge
The custom ContainerMenu event is a startup event.
Custom Container menus are created in a startup script. They cannot be reloaded without restarting the game. The event is not cancellable.
for block entities:
StartupEvents.registry('menu', event => {
    event.create('example_block' /*name can be anything*/, 'block_entity')
        .addSlot(-10, -10) // adds a slot into this x,y position on the texture
        .addSlot(10, 200)
        .loop(builder /*this builder*/=> {
            for(let x = 0; x < 9; x++) {
                for (let y = 0; y < 4; y++) {
                    builder.addSlot(x * 18 /*<- the width of a slot, remember to add this*/, y * 18)18, x + y * 4)
                }
            }
        })
        .addOutputSlot(118, 118)118, 0, 0, 1, 'minecraft:smelting') // adds a slot you can't put an item into, but can pull an item from
  																// LAST PARAMETER CAN BE NULL FOR NO OUTPUT HANDLING
  		.inputSlotIndices(0) // sets a list of ITEM HANDLER indexes to handle as slotChanged callback input
        .playerInventoryY(100) // marks the start of the player's inventory on the texture
        .tintColor(0x00FF00FF)0xFF00FF00) // a color to tint the whole inventory texture, in hexadecimal [a, r, g, b]
        .progressDrawable(50, 50, new Rectangle(0, 0, 10, 30), 'forge:textures/white.png', 'up', 'ENERGY'energy') // displays an energy bar from the blockentity's FE capability
  		.slotChanged((menu, level, player, itemHandlers) => {
      		console.info('' + player)
    	})
  
        .setBlockEntity('kubejs:example_block') // the block entity type that should open this GUI on right-click
})for any block:
StartupEvents.registry('menu', event => {
    event.create('grass_block' /*name can be anything*/, 'block')
        /*default parameter set*/
  		.addItemHandler(9) // adds an item handler.
  		.addItemHandler(1)
  		.inputSlotIndices(0)
        .setBlock('minecraft:grass_block') // the block that should open this GUI on right-click
})for entities:
StartupEvents.registry('menu', event => {
    event.create('snow_golem' /*name can be anything*/, 'entity')
        /*default parameter set*/
        .setEntity('minecraft:snow_golem') // the enity type that should open this GUI on right-click
})and lastly, for completely separate 'basic' GUIs:
currently nothing can access these!
StartupEvents.registry('menu', event => {
    event.create('name_here' /*name can be anything*/)
        /*default parameter set*/
})- basic (this is the default)
- block_entity
- block
- entity
- addSlot(x,- y)y, containerIndex, slotIndex)
- addOutputSlot(x,- y)y, slotIndex, inputContainerIndex, outputContainerIndex, recipeType)
- loop(builder => ...)
- inputSlotIndices(int[] indexes)
- tintColor(color)
- drawable(screenX, screenY, rectangle, textureLocation)
- progressDrawable(x, y, rectangle, textureLocation, direction, type)
- fluidDrawable(x, y, rectangle, textureLocation, direction, tankIndex)
- customDrawable(x, y, rectangle, textureLocation, direction, (menu, screen, drawable, direction) => ...)
- backroundTexture(texture, rectangle)
- quickMoveFunc((player, slotIndex, menu) => ... return item)
- slotChanged((menu, level, player, itemHandler) => ...)
- validityFunc((player, pos) => ... return boolean)
- disablePlayerInventory()
- playerInventoryY(yPos)
- button(rectangle, textComponent, button => ...)
default available types:
- PROGRESS
- FUEL
- ENERGY
default available move directions:
- UP
- DOWN
- LEFT
- RIGHT
