BlockLayer

Base

a BlockLayer is basically a layer of BlockStates. It is defined by a list of BlockStates and an int that represents the depth of the layer. It is the pillar of the shape generation.

Showcase

For a better visualization, we can take the example of a superflat world

On a superflat world, you can see 3 layers,

• the one on top is composed of grass at a depth of 1 block,
• the second is composed of dirt with a depth of 3 blocks
• then the last is bedrock with 1 block depth

we would have translated that as :

new BlockLayer(List/of(Blocks.GRASS.getDefaultState()),1);
new BlockLayer(List/of(Blocks.DIRT.getDefaultState()),3);
new BlockLayer(List/of(Blocks.BEDROCK.getDefaultState()),1); 

each BlockLayers can of course have multiple BlockStates

Be sure to have a depth always superior or equal to 1, or when placing your structure in the world, your layer wont be placed

Particle Layer

it is basically the same as BlockLayer except that you use a list of Particle instead of a list of BlockStates