Update - 2.0.0

New

• New versions support 1.21.2 - 26.3 Fabric / NeoForge

• A new look for player-placed spawners

A spawner placed by a player behaves like a vanilla one: it spawns for everyone, breaks normally and doesn't put out torches. With a mob it now looks dark steel with blue eyes, so you can tell it from the golden world spawners at a glance.

• Spawners can become active again

Server owners can make a disabled spawner active again for each player after a while with spawnerRespawnMinutes (0, the default, keeps them disabled for good) or /multiplayerspawners respawn <minutes>. Players are told when it will come back. @Fjor thx for the idea!

• Option to turn off the chat messages

showNotices or /multiplayerspawners toggle_notices turns off the mod's informational chat messages. @tyrthurey thx for the idea!

• Breaking spawners with spawner tools

With breakWithSpawnerTools or /multiplayerspawners toggle_break_tools, a tool of the multiplayerspawners:breaks_spawners item tag (Composite Material's dungeon pickaxe by default) breaks a spawner like vanilla, and its mod decides what drops. With the break link turned off as well, spawners can only be broken with those tools or in Creative. @rednetwo thx for the idea!

• Single-use spawners for every player

Blocks that spawn once and then remove themselves can be added to the multiplayerspawners:one_shot_spawners block tag with a datapack: each player gets their own use, and once it's used up for you it stays for the others.

Compatibility

• Quark compatibility

The monster box no longer disappears for everyone after the first player triggers it. Each player gets their own: once it's used up for you, it shows in the vanilla spawner's colours and stops showing its particles to you, while it stays ready for the others. @inf0214 and @vancomb thx for the idea!

• Apotheosis compatibility

The boss spawner no longer disappears after the first player triggers it: each player gets their own boss. @inf0214 thx for the idea!

• Apothic Spawners compatibility

Spawners you disabled no longer keep spawning mobs, and spawners players place are recognised again. @pray_star_jirachi thx for reporting it!

• Ageing Spawners compatibility

A spawner that runs out no longer disappears for the whole server: it runs out only for the players who used it, and stays for the rest. @mochacat thx for reporting it!

• Brass Amber Battle Towers compatibility

Tower spawners work and break as the mod intends again. @decxmber thx for reporting it!

• Respawning Structures compatibility

A regenerated spawner no longer looks disabled to players who had disabled the old one in the same spot. @demivfx thx for reporting it!

Fixes

• Nearby players are always disabled too

Group disabling now works on every hit. Before, hitting a spawner that someone else had already disabled could leave the players next to you with it still active.

• No more flickering spawners

Hitting a disabled spawner no longer makes it vanish or flash for a moment, and a spawner you place no longer shows the active look before switching off. Empty spawners now always look off.

• Spawners no longer spawn for players who disabled them

A spawner you disabled no longer spawns mobs when nobody who still has it active is near, or looks active again after you respawn. @alejoo930_ thx for reporting it!

• Better performance on big servers

Thousands of spawners and torches take much less work, and joining, respawning and loading chunks no longer hit the server hard.

• Unlit torches drop again on 1.21+

Breaking a torch that a spawner put out drops it again.