Candy Wrapper

Candy Warpper is a library mod I use in many of my mods. You are free to use it in your mods.

Things made player riding possible:

• Redirect isSaveable() in addPassenger() to a custom method which returns isPlayer() if not saveable.
• Send EntityPassengersSetS2CPacket to the vehicle player when mounting or dismounting.

Other utils:

public class ItemEnchantmentsComponent {
    public int getLevel(String enchantment) {}
}

public class Scoreboard {
    public ScoreboardObjective getOrAddObjective(String name, ScoreboardCriterion criterion, Text displayName, ScoreboardCriterion.RenderType renderType, boolean displayAutoUpdate, @Nullable NumberFormat numberFormat) {}
}

public abstract class Entity {
    public boolean hasCommandTag(String commandTag) {}
}

public class BossBarManager {
    public CommandBossBar getOrAdd(Identifier id, Text displayName) {}

    public boolean contains(Identifier id) {}

    public void remove(Identifier id) {}
}

public final class ItemStack {
    // From `modifiers` in `minecraft:custom_data`.
    public NbtList getCustomModifiers() {}

    // From `status_effects` in `minecraft:custom_data`.
    public NbtList getCustomStatusEffects() {}
}

public abstract class PlayerEntity {
    public ScoreHolder getScoreHolder() {}
}

public abstract class LivingEntity {
    public ScoreHolder getScoreHolder() {}

    public double getCustomModifiedValue(String attribute, double base) {}

    // From equipped `ItemStack`s, filtered based on `attribute` field.
    public NbtList getCustomModifiers(String attribute) {}

    // From equipped `ItemStack`s.
    public NbtList getCustomModifiers() {}
}

FAQ

Performence downside if only install the library?

Not at all. It just takes a few more milliseconds to start Minecraft. Because the purpose of this library is to provide util methods.