Make your stone generator produce multiple block types

Understand the weight system

CobbleGen uses a weighted random selection. Each block type you add gets a weight value—blocks with higher weights are selected more often. The actual probability is calculated as each block's weight divided by the total of all weights.

Configure multiple outputs

Add multiple cobblegen entries to your cobblegen.toml file, each with a different id and weight:

`

cobblegen

id = "minecraft:stone"

weight = 70.0

cobblegen

id = "minecraft:deepslate"

weight = 20.0

cobblegen

id = "minecraft:granite"

weight = 10.0

`

Test and adjust

Run /reload to apply changes. Let your generator run for a while and observe the output ratio. If you want more variety, lower the dominant block's weight or increase others. If one block should be rare, give it a much lower weight value.