SnakePlayer

Evidence

Ran on Kiln's test stand (2026-11-04): SnakePlayerFabric did not start: java.lang.NoClassDefFoundError: net/minecraft/core/BlockPos$MutableBlockPos.

What it needs from Kiln

• Mixin
• net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback
• net.fabricmc.fabric.api.entity.event.v1.ServerEntityLevelChangeEvents
• net.fabricmc.fabric.api.entity.event.v1.ServerEntityLevelChangeEvents.AfterPlayerChange
• net.fabricmc.fabric.api.entity.event.v1.ServerLivingEntityEvents
• net.fabricmc.fabric.api.entity.event.v1.ServerLivingEntityEvents.AfterDeath
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents.EndTick
• net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents
• net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents.Join
• net.minecraft.client.player.ClientInput
• net.minecraft.commands.CommandSourceStack
• net.minecraft.commands.Commands
• net.minecraft.commands.Commands.CommandSelection
• net.minecraft.commands.SharedSuggestionProvider
• net.minecraft.commands.arguments.EntityArgument
• net.minecraft.core.BlockPos.MutableBlockPos
• net.minecraft.network.codec.ByteBufCodecs
• net.minecraft.network.codec.StreamCodec
• net.minecraft.network.codec.StreamCodec.CodecOperation
• net.minecraft.network.syncher.EntityDataSerializer
• net.minecraft.network.syncher.EntityDataSerializers
• net.minecraft.server.MinecraftServer
• net.minecraft.server.network.ServerGamePacketListenerImpl
• net.minecraft.world.entity.Entity.RemovalReason
• net.minecraft.world.entity.EntityDimensions
• net.minecraft.world.entity.ExperienceOrb
• net.minecraft.world.level.BlockGetter
• net.minecraft.world.phys.AABB
• net.minecraft.world.phys.Vec2
• LocalPlayer.getDeltaMovement()
• LocalPlayer.input
• LocalPlayer.isInLava()
• LocalPlayer.isInWater()
• LocalPlayer.onGround()
• LocalPlayer.position()
• LocalPlayer.setDeltaMovement()
• ServerLevel.addFreshEntity()
• ServerLevel.getPlayers()
• ServerPlayer.refreshDimensions()
• Entity.getEyePosition()
• and 13 more

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

MOD that allows the player to become a snake

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file snakeplayer-fabric-26.3-v1.5.0.jar. The scan reads the mod's classes; it does not run them.