One-Sleep Timelapse (NeoForge 1.21.1)

Primary target: servers with mandatory client install server + client required. Single-player is less battle-tested so far — if you find bugs or have ideas, please leave a comment. Any feedback helps a ton ❤️

Smooth, one-player night & storm skip with a cinematic timelapse. Both sides required: install the mod on the server and on every client.

Changelog (latest)

• New, cleaner config layout (auto-generated with sections, comments, and per-reason messages).
• Voting countdown before a skip starts + optional veto percentage.
• Daytime rain skip via consent (click a bed while it’s raining or use /onesleep consent).
• Bossbars for countdown and during the skip; titles are fully customizable.
• Config self-check: /onesleep checkconfig validates values, auto-repairs critical issues, and reports the result in chat.
• Safer suppression/restore of vanilla playersSleepingPercentage while pending/running.
• More flexible texts (bossbar, start/finish, and per-reason overrides).

Features

• One-sleep trigger — skip begins when the required threshold is met (default 0% = one-sleep).
• Two modes:
  • Cinematic (default): clients render a smooth sky animation; server snaps to morning (night) or ends thunder (daytime thunder).
  • Timelapse: the server actually advances time; lighting/mobs/weather update during the transition.
• Thunder (vanilla behavior) and daytime rain skip (via consent, optional).
• UI: progress bossbar + optional titles (all texts customizable).
• Overworld-only. Nether/End are ignored.
• Server + client required. The mod must be installed on the server and on all joining clients.

How it works

• Cinematic: server broadcasts “start”, clients render for durationSeconds. Server sets time to targetTime (night) or ends thunder once (daytime thunder). Rain-skip keeps time and can clear rain once.
• Timelapse: server advances day time every tick for the duration; clients still get smoothing hints.

Installation

1. Server: place the JAR into /mods and start.
2. Clients (required): every player must place the same JAR into /mods. The mod is required to join and to see the cinematic.
3. Config: generated on first run at config/onesleep.toml.

Requirements

• NeoForge 21.1.x
• Minecraft 1.21.1
• Java 21

Commands

• /onesleep consent — register consent to skip daytime rain (no need to enter bed).
• /onesleep stop — cancel pending/running skip (respects veto rules if enabled).
• /onesleep start — force start (OP).
• /onesleep cancel — force cancel (OP).
• /onesleep require <0..100> — set threshold in % (0 = one-sleep) (OP).
• /onesleep duration <seconds> — set animation length (OP).
• /onesleep checkconfig — validate & auto-repair config; report result in chat (OP).
• /onesleep reload — reload the config immediately (OP).
• /onesleep mode [cinematic|timelapse|toggle] — switch mode at runtime (OP).

CONFIG (auto-generated; acts as documentation)

Core

Skip Rules

Voting — mechanics

UI

Messages — global defaults

Messages — consent (actionbar)

Per-reason overrides — Night

Per-reason overrides — Thunder

Per-reason overrides — Rain (day)

Compatibility

• Built for dedicated servers.
• Requires the mod on the server and on all clients.
• If another mod force-sets time/weather every tick, prefer Cinematic mode for the smoothest result.

Credits & Transparency

This mod was created from my personal idea and is my first proper Minecraft mod I’d like to share. I’m primarily a web developer, so I built it with AI assistance for Java/NeoForge boilerplate and best-practice guidance, and then tested/tuned everything myself — with special care to keep vanilla weather behavior intact and to deliver a smooth, server-safe experience.

Author: OpiceBOT (cz.opicebot) — License: MIT

Suggested categories

• Main: Server Utility / Utility & QoL
• Additional: Gameplay, Cosmetic, World