====== Mixin Accessors & Invokers ====== Mixin accessors and invokers allow you to access fields or invoke methods that are not visible (private) or final. ===== Accessor ===== ''@Accessor'' allows you to access fields. Suppose we want to access ''itemUseCooldown'' field of ''MinecraftClient'' class. ==== Getting a value from the field ====


@Mixin(MinecraftClient.class)
public interface MinecraftClientAccessor {
    @Accessor
    int getItemUseCooldown();
}

Usage:


int itemUseCooldown = ((MinecraftClientAccessor) MinecraftClient.getInstance()).getItemUseCooldown();

==== Setting a value to the field ====


@Mixin(MinecraftClient.class)
public interface MinecraftClientAccessor {
    @Accessor("itemUseCooldown")
    public void setItemUseCooldown(int itemUseCooldown);
}

Usage:


((MinecraftClientAccessor) MinecraftClient.getInstance()).setItemUseCooldown(100);

===== Accessor for static fields ===== Suppose we want to access ''BIOMES'' field of ''VanillaLayeredBiomeSource'' class. ==== Getting a value from the field ====


@Mixin(VanillaLayeredBiomeSource.class)
public interface VanillaLayeredBiomeSourceAccessor {
  @Accessor("BIOMES")
  public static List> getBiomes() {
    throw new AssertionError();
  }
}

Usage:


List> biomes = VanillaLayeredBiomeSourceAccessor.getBiomes();

==== Setting a value to the field ====


@Mixin(VanillaLayeredBiomeSource.class)
public interface VanillaLayeredBiomeSourceAccessor {
  @Accessor("BIOMES")
  public static void setBiomes(List> biomes) {
    throw new AssertionError();
  }
}

Usage:


VanillaLayeredBiomeSourceAccessor.setBiomes(biomes);

===== Invoker ===== ''@Invoker'' allows you to access methods. Suppose we want to invoke ''teleportTo'' method of ''EndermanEntity'' class.


@Mixin(EndermanEntity.class)
public interface EndermanEntityInvoker {
  @Invoker("teleportTo")
  public boolean invokeTeleportTo(double x, double y, double z);
}

Usage:


EndermanEntity enderman = ...;
((EndermanEntityInvoker) enderman).invokeTeleportTo(0.0D, 70.0D, 0.0D);

===== Invoker for static methods ===== Suppose we want to invoke ''registerPotionType'' method of ''BrewingRecipeRegistry'' class.


@Mixin(BrewingRecipeRegistry.class)
public interface BrewingRecipeRegistryInvoker {
  @Invoker("registerPotionType")
  public static void invokeRegisterPotionType(Item item) {
    throw new AssertionError();
  }
}

Usage:


BrewingRecipeRegistryInvoker.invokeRegisterPotionType(item);