Block Motion

Evidence

Ran on Kiln's test stand (2026-11-04): BlockMotionClient did not start: java.lang.NoClassDefFoundError: net/minecraft/client/OptionInstance$ValueSet.

What it needs from Kiln

• Mixin
• com.mojang.blaze3d.systems.RenderSystem
• com.mojang.blaze3d.vertex.PoseStack
• com.mojang.math.Axis
• com.mojang.renderpearl.api.buffers.GpuBuffer
• com.mojang.renderpearl.api.commands.CommandEncoder
• com.mojang.renderpearl.api.device.GpuDevice
• com.mojang.renderpearl.api.vertex.VertexFormat
• net.fabricmc.fabric.api.client.rendering.v1.FabricRenderState
• net.fabricmc.fabric.api.client.rendering.v1.RenderStateDataKey
• net.fabricmc.fabric.api.client.rendering.v1.level.LevelRenderContext
• net.fabricmc.fabric.api.client.rendering.v1.level.LevelRenderEvents
• net.fabricmc.fabric.api.client.rendering.v1.level.LevelRenderEvents.CollectSubmits
• net.minecraft.client.OptionInstance
• net.minecraft.client.OptionInstance.CaptionBasedToString
• net.minecraft.client.OptionInstance.IntRange
• net.minecraft.client.OptionInstance.TooltipSupplier
• net.minecraft.client.OptionInstance.ValueSet
• net.minecraft.client.OptionInstance.ValueUpdateListener
• net.minecraft.client.Options
• net.minecraft.client.multiplayer.MultiPlayerGameMode
• net.minecraft.client.renderer.SubmitNodeCollector
• net.minecraft.client.renderer.block.BlockStateModelSet
• net.minecraft.client.renderer.block.MovingBlockRenderState
• net.minecraft.client.renderer.blockentity.BlockEntityRenderDispatcher
• net.minecraft.client.renderer.blockentity.state.BlockEntityRenderState
• net.minecraft.client.renderer.extract.LevelExtractor
• net.minecraft.client.renderer.feature.ModelFeatureRenderer
• net.minecraft.client.renderer.feature.ModelFeatureRenderer.CrumblingOverlay
• net.minecraft.client.renderer.state.level.CameraRenderState
• net.minecraft.client.renderer.state.level.LevelRenderState
• net.minecraft.core.SectionPos
• net.minecraft.util.Mth
• net.minecraft.world.level.BlockGetter
• net.minecraft.world.level.block.ButtonBlock
• net.minecraft.world.level.block.DoorBlock
• net.minecraft.world.level.block.FenceGateBlock
• net.minecraft.world.level.block.PressurePlateBlock
• net.minecraft.world.level.block.RenderShape
• net.minecraft.world.level.block.TrapDoorBlock
• net.minecraft.world.level.block.WeightedPressurePlateBlock
• and 39 more

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3), Machines (0.4), Mixin (0.5)

In the author's words

BlockMotion adds smooth, springy animations to block placement, mining, and breaking.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file BlockMotion-0.5.0.jar. The scan reads the mod's classes; it does not run them.