World Switcher

World Switcher 1.4.0

Second Modrinth release. Since the initial public 1.0.0, this version bundles everything from 1.1.0, 1.2.0, 1.3.0 and 1.4.0 — the headline feature is the new command-hook system.

1.4.0 – Command Hooks

• Command hooks (enableCommandHooks, on by default): define per-world and global command lists in serverconfig/worldswitcher-hooks.json that run automatically on:
  • firstPlayerJoin – a world goes from 0 → 1 players
  • lastPlayerLeave – a world goes from 1 → 0 players
  • playerMoved – a player switches world Variables {{worldName}}, {{worldId}}, {{playerName}}, {{playerUuid}} are substituted in every command. Each hook runs as: server (OP 4, output suppressed, positioned at the world) or as: player; without an as, hookDefaultRunAs (default server) applies. Global hooks run before per-world hooks. Failing commands are logged and never interrupt the switch/login/logout. Live-reload with /wsc hooks reload (inspect via /wsc hooks status). Great for pausing doDaylightCycle/doWeatherCycle (and Serene Seasons' doSeasonCycle) while a world is empty – see the README for a ready-made example.
• Clickable switch announcement (announceSwitches, on by default): when a player switches world, everyone else sees a chat message whose world name is a clickable /ws <world> link to follow along.
• Per-world shared inventory (/wsc shareinventory <world> [true|false]): mark a world as "keep-inventory" so it uses the default inventory group instead of its own.
• Changed: persistentDataExcludes now defaults to empty.

1.2.0 – Modded player state & per-world difficulty

• Modded player state per world (part of separateInventories), with no mod dependencies:
  • NeoForge data attachments (swapModAttachments) – e.g. Curios slots swap per world.
  • Persistent data (swapPersistentData) – player NBT under NeoForgeData.
  • Tough As Nails (swapToughAsNails) – thirst + temperature per world (via reflection).
• Per-world difficulty (perWorldDifficulty): /difficulty only affects the managed world; new /wsc difficulty <world> [value]. Imports adopt difficulty from level.dat.
• Safe relog after a world was unloaded: players offline in a removed/unloaded world are teleported to their last default position/spawn instead of unsafe old coordinates.
• Fixed: modded player data (e.g. Curios) previously leaked between worlds.

1.1.0 – Per-world gamerules, time & weather

• Per-world gamerules (perWorldGameRules): each managed world has its own gamerules (also works with modded rules like Serene Seasons' doSeasonCycle).
• Per-world time & weather (perWorldTimeAndWeather): own clock and weather per world (eternal night, permanent rain, frozen time). Sleeping only skips your own world's night.
• Context-sensitive vanilla commands: /gamerule, /time, /weather affect only the managed world you're in; /execute in worldswitcher:<id> run … targets a world from anywhere; new /wsc gamerule <world> [<rule> [value]].
• Client-side rules (doImmediateRespawn, reducedDebugInfo, doLimitedCrafting) are re-synced to the client on every switch/respawn.
• Bare /ws shows the (clickable) world list with a "you are here" marker; bare /wsc shows an action overview.
• Changed: swapGamemode is now on by default.
• Fixed: /wsc list now includes the default world; correct item handling on cross-world death with differing keepInventory.