Polymer Patch for Friends&Foes

Calls something that is on Kiln's roadmap. Parts of it may already run.

Evidence

Ran on Kiln's test stand (2026-11-04): FriendsAndFoesPatch did not start: java.lang.NoClassDefFoundError: net/minecraft/world/entity/npc/villager/Villager.

What it needs from Kiln

Mixin
com.mojang.math.Axis
net.minecraft.network.protocol.game.ClientboundAnimatePacket
net.minecraft.network.protocol.game.ClientboundSetEntityLinkPacket
net.minecraft.network.protocol.game.ClientboundSetPassengersPacket
net.minecraft.network.protocol.game.ClientboundUpdateAttributesPacket
net.minecraft.network.syncher.SynchedEntityData
net.minecraft.network.syncher.SynchedEntityData.DataValue
net.minecraft.util.Mth
net.minecraft.util.Util
net.minecraft.world.entity.EntityDimensions
net.minecraft.world.entity.EntityType
net.minecraft.world.entity.EntityTypes
net.minecraft.world.entity.EquipmentSlot
net.minecraft.world.entity.HumanoidArm
net.minecraft.world.entity.WalkAnimationState
net.minecraft.world.entity.monster.illager.AbstractIllager
net.minecraft.world.entity.monster.illager.AbstractIllager.IllagerArmPose
net.minecraft.world.entity.npc.villager.Villager
net.minecraft.world.entity.npc.villager.VillagerData
net.minecraft.world.item.CrossbowItem
net.minecraft.world.item.ItemDisplayContext
net.minecraft.world.level.block.DoublePlantBlock
net.minecraft.world.level.block.VegetationBlock
net.minecraft.world.level.block.state.properties.DoubleBlockHalf
net.minecraft.world.phys.Vec2
org.apache.commons.lang3.function.Consumers
ChatFormatting.stripFormatting()
BuiltInRegistries.VILLAGER_TYPE
Identifier.withSuffix()
Entity.getBbHeight()
Entity.getBbWidth()
Entity.getCustomName()
Entity.getDimensions()
Entity.getId()
Entity.getPose()
Entity.getType()
Entity.isCustomNameVisible()
LivingEntity.deathTime
LivingEntity.getXRot()
LivingEntity.hurtTime
and 9 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

A Polymer Patch mod for Friends&Foes, allowing it to work fully server side!

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file friends-and-foes-patch-5.0.3-0+26.3.jar. The scan reads the mod's classes; it does not run them.

Reports from players

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