misode

package net.misode.worldgenexporter;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.mojang.serialization.Codec;
import com.mojang.serialization.DynamicOps;
import com.mojang.serialization.JsonOps;
import net.fabricmc.api.ModInitializer;

misode

key.jump
key.sneak
key.sprint
key.left
key.right
key.back
key.forward
key.attack
key.pickItem
key.use

misode

Critical

• MC-215946 Game fatally crashed while exploring chunks (PalettedContainer)
• MC-197860 Deleting a custom dimension in a datapack deletes Nether and End
• MC-202036 Adding a biome to a datapack shifts biome IDs in existing chunks

Missing features

• MC-197128 If a custom biome uses multiple configured structure features of the same type, only one of them can generate
• MC-186626 /weather not working in custom dimensions
• MC-195717 Custom Dimensions JSON Requires Seed
• MC-226687 Sea Level is assumed to be Y 63 in numerous parts of Minecraft

Quality of life

misode

⚡ = Advancement trigger
✨ = Enchantment effect
▶️ = Commands run

• MinecraftServer::tickServer
  • 🕑 Update /tick rate manager
  • ServerFunctionManager::tick
    • ▶️ Run #load function tag if a reload happened
    • ▶️ Run #tick function tag
  • ServerLevel::tick (per dimension)

misode

import os

commands = 0
for root, dirs, files in os.walk("."):
    for filename in [f for f in files if f.endswith(".mcfunction")]:
        with open(os.path.join(root, filename)) as f:
            commands += len([l for l in f.readlines() if l[0].isalpha()])
print(commands)

misode

import os

for dir in os.walk("."):
    if not dir[0].startswith(r".\gm4_"):
        continue
    if not dir[0].endswith(r"\data"):
        continue
    for namespace in dir[1]:
        if namespace in ["load", "minecraft"]:
            continue

misode

Minecraft commands benchmarks

Each test ranks a list of possible commands from best (most efficient) to worst (least efficient). Lower percentages are better. You can only compare the percentages between the commands in the same test.

These tests were done in a superflat world with no entities except for the player. The only commands running are the ones from the test.

1 Running commands for every player

1.1 All players

misode

{
  "advancement": {
    "type": "object",
    "properties": {
      "display": {
        "type": "object",
        "optional": true,
        "properties": {
          "icon": {
            "type": "object",

misode

{
  "type": "decorated",
  "config": {
    "decorator": {
      "type": "chance",
      "config": {
        "chance": 48
      }
    },
    "feature": {

misode

// count: CountDecorator
// - UniformInt count (min: -10, max: 128, maxSpread: 128)
return IntStream.range(0, count.sample(random))
   .mapToObj((e) -> pos);

// count_noise: CountNoiseDecorator
// - double noise_level
// - int below_noise
// - int above_noise