Happy-Artillery

Evidence

Ran on Kiln's test stand (2026-11-04): HappyArtillery did not start: java.lang.NoClassDefFoundError: net/fabricmc/fabric/api/attachment/v1/AttachmentRegistry.

What it needs from Kiln

• Mixin
• net.fabricmc.fabric.api.attachment.v1.AttachmentRegistry
• net.fabricmc.fabric.api.attachment.v1.AttachmentTarget
• net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStarted
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStopped
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents.EndTick
• net.fabricmc.fabric.api.event.player.UseBlockCallback
• net.fabricmc.fabric.api.event.player.UseEntityCallback
• net.fabricmc.fabric.api.event.player.UseItemCallback
• net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents
• net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents.Disconnect
• net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents.Join
• net.minecraft.commands.CommandSourceStack
• net.minecraft.commands.Commands
• net.minecraft.commands.Commands.CommandSelection
• net.minecraft.core.component.DataComponents
• net.minecraft.core.particles.ParticleTypes
• net.minecraft.nbt.CompoundTag
• net.minecraft.server.MinecraftServer
• net.minecraft.server.level.ServerBossEvent
• net.minecraft.server.network.ServerGamePacketListenerImpl
• net.minecraft.server.players.PlayerList
• net.minecraft.util.Mth
• net.minecraft.world.BossEvent
• net.minecraft.world.BossEvent.BossBarColor
• net.minecraft.world.BossEvent.BossBarOverlay
• net.minecraft.world.entity.EntityType
• net.minecraft.world.entity.EntityTypes
• net.minecraft.world.entity.animal.happyghast.HappyGhast
• net.minecraft.world.entity.player.Inventory
• net.minecraft.world.entity.projectile.hurtingprojectile.LargeFireball
• net.minecraft.world.inventory.AbstractContainerMenu
• net.minecraft.world.inventory.AbstractCraftingMenu
• net.minecraft.world.inventory.Slot
• net.minecraft.world.item.ItemStackTemplate
• net.minecraft.world.item.ItemUseAnimation
• net.minecraft.world.item.component.BundleContents
• net.minecraft.world.item.component.Consumable
• and 47 more

On the roadmap: Code next to data (0.3), Machines (0.4), Mixin (0.5)

In the author's words

Server-side Happy Ghast artillery for Minecraft 26.2 and 26.3, with controls, heat, Cry, and HUDs.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file happy-artillery-1.2.1.1.jar. The scan reads the mod's classes; it does not run them.