How high is it?

Evidence

Ran on Kiln's test stand (2026-11-04): HowHighIsItClient did not start: java.lang.NoClassDefFoundError: net/minecraft/world/item/ItemInstance.

What it needs from Kiln

• Mixin
• net.minecraft.client.gui.Hud
• net.minecraft.client.server.IntegratedServer
• net.minecraft.core.RegistryAccess
• net.minecraft.world.damagesource.DamageSource
• net.minecraft.world.damagesource.DamageTypes
• net.minecraft.world.entity.EntityTypes
• net.minecraft.world.entity.EquipmentSlot
• net.minecraft.world.entity.monster.zombie.Zombie
• net.minecraft.world.entity.player.Abilities
• net.minecraft.world.item.MaceItem
• net.minecraft.world.item.enchantment.EnchantmentHelper
• net.minecraft.world.item.enchantment.Enchantments
• net.minecraft.world.level.ClipContext
• net.minecraft.world.level.ClipContext.Block
• net.minecraft.world.level.ClipContext.Fluid
• net.minecraft.world.phys.HitResult.Type
• net.minecraft.world.item.ItemInstance
• Minecraft.getSingleplayerServer()
• Gui.hud
• GuiGraphicsExtractor.item()
• GuiGraphicsExtractor.pose()
• ClientLevel.clip()
• ClientLevel.registryAccess()
• LocalPlayer.position()
• Registry.get()
• Registries.DAMAGE_TYPE
• Registries.ENCHANTMENT
• Player.fallDistance
• Player.getAbilities()
• Player.getItemBySlot()
• Player.getWeaponItem()
• Item.getAttackDamageBonus()
• BlockHitResult.getType()

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3), Mixin (0.5)

In the author's words

Shows information about fall distance (fall and mace damage) on hud

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file howhighisit-fabric-26.2-1.0.1.jar. The scan reads the mod's classes; it does not run them.