Item Collectors

Evidence

Ran on Kiln's test stand (2026-11-04): ItemCollectors did not start: java.lang.NoClassDefFoundError: net/minecraft/world/inventory/MenuType; ItemCollectorsClient did not start: java.lang.NoClassDefFoundError: net/minecraft/client/renderer/OrderedSubmitNodeCollector.

What it needs from Kiln

• an access widener
• Mixin
• com.mojang.blaze3d.vertex.PoseStack
• net.fabricmc.fabric.api.client.rendering.v1.RenderStateDataKey
• net.fabricmc.fabric.api.client.rendering.v1.level.LevelExtractionContext
• net.fabricmc.fabric.api.client.rendering.v1.level.LevelExtractionEvents
• net.fabricmc.fabric.api.client.rendering.v1.level.LevelExtractionEvents.AfterBlockOutlineExtraction
• 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.BeforeBlockOutline
• net.fabricmc.fabric.api.lookup.v1.block.BlockApiLookup
• net.fabricmc.fabric.api.transfer.v1.item.ItemStorage
• net.fabricmc.fabric.api.transfer.v1.item.ItemVariant
• net.fabricmc.fabric.api.transfer.v1.storage.Storage
• net.fabricmc.fabric.api.transfer.v1.transaction.Transaction
• net.minecraft.client.renderer.state.level.CameraRenderState
• net.minecraft.client.renderer.state.level.LevelRenderState
• net.minecraft.core.Direction.Axis
• net.minecraft.network.FriendlyByteBuf
• net.minecraft.world.entity.Entity.RemovalReason
• net.minecraft.world.entity.item.ItemEntity
• net.minecraft.world.entity.player.Inventory
• net.minecraft.world.inventory.Slot
• net.minecraft.world.level.material.MapColor
• net.minecraft.world.level.storage.ValueInput
• net.minecraft.world.level.storage.ValueOutput
• net.minecraft.world.phys.AABB
• net.minecraft.world.inventory.MenuType
• net.minecraft.client.renderer.OrderedSubmitNodeCollector
• ClientLevel.getBlockEntity()
• Direction.get3DDataValue()
• Direction.getAxis()
• Direction.toYRot()
• Player.getInventory()
• ItemStack.CODEC
• ItemStack.isSameItem()
• ItemStack.isSameItemSameComponents()
• Items.ENDER_EYE
• Items.ENDER_PEARL
• Items.OBSIDIAN
• Level.getEntitiesOfClass()
• Block.getName()

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

Item Collectors adds Collectors which collect items in a specified range!

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file itemcollectors-1.1.12-fabric-mc26.3.jar. The scan reads the mod's classes; it does not run them.