loot table grammar

grammar.js

{
    "pools": [ <lootpool> ... ] // Every pool is queried by the table the number of times specified in "rolls"
}

-------------

<lootpool> == {
    "name": <autogenerated for vanilla pools | table-unique name for this pool>
    "conditions": [ <lootcondition> ... ],
    "rolls": <randomvaluerange>
    "bonus_rolls": <randomvaluerange>
    "entries": [ <lootentry> ... ]
}

<lootentry> == {
    "conditions": [ <lootcondition> ... ],
    "type": <"item"|"loot_table"|"empty">,
    "name": <registry name of item | loot table id>,
    "entryName": <autogenerated from "name" | pool-unique name for this entry> 
    // ^^^ if you have the same item in multiple entries in the same pool you have to specify this manually
    "functions": [ <lootfunction> ... ],
    "weight": <num>
    "quality": <num>
}

<lootfunction> == {
    "function": "<string id of function>",
    "conditions": [ <lootcondition> ... ]
    <any additional info needed by function>
}

functions provided by vanilla: [
    "minecraft:enchant_randomly",
    "minecraft:enchant_with_levels",
    "minecraft:furnace_smelt",
    "minecraft:looting_enchant",
    "minecraft:set_attributes",
    "minecraft:set_count",
    "minecraft:set_damage", // For tools
    "minecraft:set_data",   // For other kinds of meta
    "minecraft:set_nbt"
]

<lootcondition> == {
    "condition": "<string id of condition>",
    <any additional info needed by condition>
}

conditions provided by vanilla: [
    "minecraft:entity_properties", // checks if entity has some property. currently only one exists: "on_fire"
    "minecraft:entitty_scores",
    "minecraft:killed_by_player",
    "minecraft:random_chance",
    "minecraft:random_chance_with_looting"
]

<randomvaluerange> == <num>

<randomvaluerange> == {
    "min": <num>,
    "max": <num>
}