Predicted lag overlay

Evidence

Ran on Kiln's test stand (2026-11-04): PredictedLagOverlayClient did not start: java.lang.NoClassDefFoundError: net/minecraft/client/gui/screens/options/OptionsSubScreen.

What it needs from Kiln

• Mixin
• net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLifecycleEvents
• net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLifecycleEvents.ClientStopping
• net.minecraft.client.gui.components.AbstractSliderButton
• net.minecraft.client.gui.components.Button
• net.minecraft.client.gui.components.Button.Builder
• net.minecraft.client.gui.components.Button.OnPress
• net.minecraft.client.gui.components.CycleButton
• net.minecraft.client.gui.components.CycleButton.Builder
• net.minecraft.client.gui.components.CycleButton.OnValueChange
• net.minecraft.client.gui.components.OptionsList
• net.minecraft.client.gui.components.Tooltip
• net.minecraft.client.gui.layouts.HeaderAndFooterLayout
• net.minecraft.client.gui.layouts.LinearLayout
• net.minecraft.client.gui.screens.options.OptionsSubScreen
• net.minecraft.client.player.AbstractClientPlayer
• net.minecraft.network.chat.CommonComponents
• net.minecraft.network.protocol.game.VecDeltaCodec
• net.minecraft.world.entity.player.Abilities
• net.minecraft.world.phys.AABB
• Minecraft.options
• ClientLevel.getEntityCollisions()
• ClientLevel.players()
• Entity.collideBoundingBox()
• Entity.getDeltaMovement()
• Entity.getId()
• Entity.getPositionCodec()
• Block.getFriction()
• Vec3.add()
• Vec3.distanceTo()
• Vec3.distanceToSqr()
• Vec3.dot()
• Vec3.horizontal()
• Vec3.horizontalDistance()
• Vec3.lengthSqr()
• Vec3.lerp()
• Vec3.multiply()
• Vec3.scale()
• Vec3.subtract()

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 prediction logic, for then a player lags and gets frozen in place while they are already moving. The mod simulated the predicted movement as a ghost.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file predicted-lag-overlay-0.1.1+26.3.jar. The scan reads the mod's classes; it does not run them.