GitLab

Single modification

// Get a hold of the ActiveModel you want to modify
ActiveModel model = ...
// Search for a bone called "head"
model.getBone("head").ifPresent(modelBone -> {
	// Get the HEAD behavior of this bone
	modelBone.getBoneBehavior(BoneBehaviorTypes.HEAD).ifPresent(head -> {
		// Configure the bone behavior
		head.setLocal(true);
	});
});

Batch modification

// Get a hold of the ActiveModel you want to modify
ActiveModel model = ...
// Iterate through all bones on the model
model.getBones().forEach((s, modelBone) -> {
	var provider = new HeldItem.StaticItemStackSupplier(new ItemStack(Material.CARVED_PUMPKIN));
	// Get the ITEM behavior
	modelBone.getBoneBehavior(BoneBehaviorTypes.ITEM).ifPresent(heldItem -> {
		// Configure the bone behavior
		heldItem.setItemProvider(provider);
	});
});