Trait BiomeModifiersRegistrar 

pub trait BiomeModifiersRegistrar {
    // Required method
    fn declare_biome_modifier(
        &mut self,
        path: &str,
        modifier: BiomeModifier,
    ) -> Result<(), BiomeModifierError>;
}

Registrar operations for biome modifiers.

Required Methods

fn declare_biome_modifier( &mut self, path: &str, modifier: BiomeModifier, ) -> Result<(), BiomeModifierError>

Declare a biome modifier path (no_zombies or mymod:no_zombies) in code: the same operations as the data files in data/<ns>/neoforge/biome_modifier/ (add and remove features, add and remove spawns, add and remove spawn costs) on the biomes it names. The game applies it with the data-file modifiers, once, when the world’s tables build: every addition first, then every removal, then every ModifyBiome, each in mod and registration order. A world no modifier names generates exactly as before.

ModifyBiome is NeoForge’s MODIFY phase: it sets a biome’s climate values and effects colours (horizon:modify_biome in a file). A modifier naming a biome, feature or entity type the world lacks (another mod’s, a convention tag) is skipped with a line in the log, as a data file is.

An id outside the mod’s namespace, a repeated id, an empty list, a name that is not namespaced, an unknown generation step, a spawner of weight 0 or with its smallest group above its largest, a spawn cost that is not finite, and a climate number that is not finite, a colour above 0xFFFFFF or a temperature modifier other than none or frozen refuse the mods, naming the mod.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors