# FentLib
\nA shared code library and tweak\/fix mod.<\/p>\n
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## Features
\n* Support for animated GIF server icons. Just drop a `server-icon.gif` file in the server root directory. Size limits are configurable. HodgePodge is a soft dependency, required if you want to use larger GIFs (because of the packet size limit).
\n
\nUse the `\/reload_icon` command to reload the icon. Also works for `server-icon.png`.
\n* Removal of EnderCore \/ HodgePodge Info Button in the mod list screen.
\n* API to modify the `S00PacketServerInfo` packet. Example:
\n“`java
\npublic class ClientProxy extends CommonProxy {
\n @Override
\n public void preInit(FMLPreInitializationEvent event) {
\n S00PacketServerInfoModifyService.registerDeserializeHandler((response, fentlibData, serverData) -> {
\n if (fentlibData.has(“server_to_client_payload”)) {
\n \/\/ Yoohoo we got something back!!!!
\n \/\/ serverData contains stuff like server IP
\n }
\n });
\n }
\n}<\/p>\n
public class CommonProxy { ## Fishing Loot Config The JSON has top-level `fish`, `junk`, and `treasure` lists. Each entry uses vanilla-style `weight`, supports `count` and `meta` ranges, can be limited to a biome whitelist with `biomes` or inverted into a blacklist with `invertBiomes`, and biome selectors can be numeric IDs, biome names, or `*` to match any biome. Entries can also use explicit numeric enchant IDs or `useVanillaEnchantingRules` for vanilla-style random enchanting.<\/p>\n “`json ## Dependencies ## Building<\/p>\n `.\/gradlew build`.<\/p>\n ## Credits ## License<\/p>\n `LgplV3 + SNEED`.<\/p>\n ## Buy me a coffee<\/p>\n * ko-fi.com <\/p>\n <\/p>\n","protected":false},"excerpt":{"rendered":" A shared code library and tweak\/fix mod.<\/p>\n","protected":false},"featured_media":69865,"template":"","meta":{"_minecraft_slug":"fentlib","_minecraft_project_id":"gicMzKg1","_minecraft_author":"le_jack","_minecraft_license":"LicenseRef-LGPLv3-SNEED","_minecraft_downloads":57,"_minecraft_follows":0,"_minecraft_client_side":"optional","_minecraft_server_side":"optional","_minecraft_storage_type":"zip","_minecraft_archive_name":"fentlib.zip","_minecraft_size_bytes":58537326,"_minecraft_version_count":9,"_minecraft_updated_at":"2026-05-16T16:14:06.084467Z","_minecraft_date_created":"2026-03-24T19:22:01.214353Z","_minecraft_date_modified":"2026-05-14T14:25:28.431298Z","_minecraft_project_url":"https:\/\/modrinth.com\/mod\/fentlib","_minecraft_icon_attachment_id":69865,"_minecraft_imported_at":"2026-06-03T23:29:58+00:00","_minecraft_import_hash":"4d50aa64f30c3c5b3fb4735ae86e640a","_minecraft_versions":"","_minecraft_links":"","_minecraft_gallery":"","_minecraft_api_metadata":""},"mod_category":[104,873,92],"mod_loader":[106],"minecraft_version":[21],"class_list":["post-69864","mod","type-mod","status-publish","has-post-thumbnail","hentry","mod_category-forge","mod_category-library","mod_category-utility","mod_loader-forge","minecraft_version-1-7-10"],"yoast_head":"\n
\n public void preInit(FMLPreInitializationEvent event) {
\n if (MiscUtil.isServer()) {
\n S00PacketServerInfoModifyService.registerHandler((response, fentLibPresent) -> {
\n \/\/ fentLibPresent is just a boolean indicating whether fentlib is loaded
\n return “server_to_client_payload”;
\n \/\/ You can return a String, a S00PacketServerInfoModifyService.KeyValue, or a JsonElement. If you return
\n \/\/ a non-null value, it will be passed back to the client
\n });
\n }
\n }
\n}
\n“`
\n* `\/dump_thaumonomicon
\n
\n* `\/warpdim` [dimension ID] command. Painlessly warp to a dimension (meant for debugging).
\n* `SessionAccessTokenOverrideMixin` allows overriding the session access token in dev launches via `-Dfentlib.accessTokenOverride=
\n* Client sound utilities to set a custom max attenuation distance without increasing the sound volume. Methods:
\n“`java
\nSoundUtil.withMaxDistance(ISound sound, float maxDistance);
\nSoundUtil.playWithMaxDistance(ISound sound, float maxDistance);
\nSoundUtil.playWithMaxDistance(SoundHandler soundHandler, ISound sound, float maxDistance);
\nSoundUtil.playAt(ResourceLocation soundResource, double x, double y, double z, float volume, float pitch, float maxDistance);
\n“`
\nExample:
\n“`java
\nSoundUtil.playAt(waveSound, x, y, z, 0.25F, 1.0F, 64.0F);
\n“`
\n* HTTP-on-Minecraft-port reverse proxying for local web UIs. Configure path-to-port mappings in `fentlib\/http-port-routes.json` so services like Dynmap can be reached through the server port, such as `\/dynmap\/…`, instead of separate ports.
\nSet `publicBaseUrl` in `config\/fentlib\/fentlib.cfg` to the public base URL of the server; mods should append their own relative route paths on top of it.
\n* QOI image format support and utils thanks to saharNooby\/qoi-java. For usage example, check out how support for `server-icon.qoi` is implemented.
\n* WebP image format support and utils thanks to haraldk\/TwelveMonkeys. For usage example, check out how support for `server-icon.webp` is implemented.<\/p>\n
\nSet `enableFishingLootTable=true` in `config\/fentlib\/fentlib.cfg` to enable FentLib’s fishing override. The loot table lives at `config\/fentlib\/fishing-loot.json`. When enabled, vanilla still decides whether a catch is `fish`, `junk`, or `treasure`, but the item itself comes only from this JSON.<\/p>\n
\n{
\n “fish”: [
\n {
\n “item”: “minecraft:fish”,
\n “weight”: 60,
\n “count”: { “min”: 1, “max”: 1 },
\n “meta”: { “min”: 0, “max”: 0 }
\n },
\n {
\n “item”: “minecraft:fish”,
\n “weight”: 10,
\n “count”: { “min”: 1, “max”: 2 },
\n “meta”: { “min”: 1, “max”: 1 },
\n “biomes”: [“ocean”, “river”]
\n }
\n ]
\n}
\n“`<\/p>\n
\n* UniMixins   <\/p>\n
\n* GT:NH buildscript<\/p>\n
\n* Monero: `893tQ56jWt7czBsqAGPq8J5BDnYVCg2tvKpvwTcMY1LS79iDabopdxoUzNLEZtRTH4ewAcKLJ4DM4V41fvrJGHgeKArxwmJ`<\/p>\n