Files
Pumpkin/pumpkin-codegen/src/tag.rs

286 lines
11 KiB
Rust

use std::{
collections::{BTreeMap, HashSet},
fs,
path::Path,
};
use crate::biome::Biome;
use crate::block::BlockAssets;
use crate::enchantments::Enchantment;
use crate::entity_type::EntityType;
use crate::fluid::Fluid;
use crate::item::Item;
use heck::ToPascalCase;
use proc_macro2::TokenStream;
use quote::{ToTokens, format_ident, quote};
// --- EnumCreator with from_string support ---
pub struct EnumCreator {
pub name: String,
pub values: Vec<String>,
}
impl ToTokens for EnumCreator {
fn to_tokens(&self, tokens: &mut TokenStream) {
let name = format_ident!("{}", self.name.to_pascal_case());
let variants = self.values.iter().map(|v| {
let variant_name = format_ident!("{}", v.to_pascal_case());
quote! { #variant_name }
});
let from_string_arms = self.values.iter().map(|v| {
let variant_name = format_ident!("{}", v.to_pascal_case());
quote! { #v => Some(Self::#variant_name) }
});
let to_string_arms = self.values.iter().map(|v| {
let variant_name = format_ident!("{}", v.to_pascal_case());
quote! { Self::#variant_name => #v }
});
tokens.extend(quote! {
#[derive(Eq, PartialEq, Hash, Debug, Clone, Copy)]
pub enum #name {
#(#variants),*
}
impl #name {
pub fn from_string(s: &str) -> Option<Self> {
match s {
#(#from_string_arms,)*
_ => None,
}
}
pub fn identifier_string(&self) -> &str {
match self {
#(#to_string_arms),*
}
}
}
});
}
}
pub fn build() -> TokenStream {
let blocks_assets: BlockAssets =
serde_json::from_str(&fs::read_to_string("../assets/blocks.json").unwrap())
.expect("Failed to parse blocks.json");
let items: BTreeMap<String, Item> =
serde_json::from_str(&fs::read_to_string("../assets/items.json").unwrap())
.expect("Failed to parse items.json");
let biomes: BTreeMap<String, Biome> =
serde_json::from_str(&fs::read_to_string("../assets/biome.json").unwrap())
.expect("Failed to parse biome.json");
let fluids: Vec<Fluid> =
serde_json::from_str(&fs::read_to_string("../assets/fluids.json").unwrap())
.expect("Failed to parse fluids.json");
let enchantments: BTreeMap<String, Enchantment> =
serde_json::from_str(&fs::read_to_string("../assets/enchantments.json").unwrap())
.expect("Failed to parse enchantments.json");
let entities: BTreeMap<String, EntityType> =
serde_json::from_str(&fs::read_to_string("../assets/entities.json").unwrap())
.expect("Failed to parse entities.json");
// build a map of dimension name -> numeric id
let dimension_json: BTreeMap<String, serde_json::Value> =
serde_json::from_str(&fs::read_to_string("../assets/dimension.json").unwrap())
.expect("Failed to parse dimension.json");
let mut dimension_id_map: BTreeMap<String, u16> = BTreeMap::new();
for (i, name) in dimension_json.keys().enumerate() {
dimension_id_map.insert(name.clone(), i as u16);
}
// also build timeline id map from registry file so timeline tags carry numbers
let mut timeline_id_map: BTreeMap<String, u16> = BTreeMap::new();
if let Ok(registries) = serde_json::from_str::<serde_json::Value>(
&fs::read_to_string("../assets/registry/1_21_11_synced_registries.json").unwrap(),
) {
if let Some(timelines) = registries.get("timeline") {
if let Some(obj) = timelines.as_object() {
for (i, name) in obj.keys().enumerate() {
timeline_id_map.insert(name.clone(), i as u16);
}
}
}
}
// dimension_id_map will be used when resolving dimension_type tag entries below
let block_id_map: BTreeMap<String, u16> = blocks_assets
.blocks
.iter()
.map(|b| (b.name.clone(), b.id))
.collect();
let fluid_id_map: BTreeMap<String, u16> =
fluids.iter().map(|f| (f.name.clone(), f.id)).collect();
let latest_version_key = "1_21_11";
let legacy_version_key = "1_21_9";
let mut all_registry_keys = HashSet::new();
all_registry_keys.insert("dimension_type".to_string());
let mut latest_modules = Vec::new();
let mut legacy_modules = Vec::new();
let mut match_get_map = Vec::new();
let versions = vec![latest_version_key, legacy_version_key];
for version in versions {
let file_path = format!("../assets/tags/{version}_tags.json");
if !Path::new(&file_path).exists() {
continue;
}
let tags: BTreeMap<String, BTreeMap<String, Vec<String>>> =
serde_json::from_str(&fs::read_to_string(&file_path).unwrap()).unwrap();
let is_latest = version == latest_version_key;
let mut tag_dicts = Vec::new();
let mut match_local_map = Vec::new();
for (key, tag_map) in tags {
all_registry_keys.insert(key.clone());
let key_pascal = format_ident!("{}", key.to_pascal_case());
let dict_name = format_ident!("{}_TAGS", key.to_pascal_case().to_uppercase());
let mut tag_entries = Vec::new();
let mut tag_map_entries = Vec::new();
let tag_type_path = if is_latest {
quote!(super::Tag)
} else {
quote!(super::super::Tag)
};
for (tag_name, values) in tag_map {
let ids: Vec<u16> = values
.iter()
.filter_map(|v| match key.as_str() {
"worldgen/biome" => biomes.get(v).map(|b| u16::from(b.id)),
"fluid" => fluid_id_map.get(v).copied(),
"item" => items.get(v).map(|i| i.id),
"block" => block_id_map.get(v).copied(),
"enchantment" => enchantments
.get(&format!("minecraft:{v}"))
.map(|e| u16::from(e.id)),
"entity_type" => entities.get(v).map(|e| e.id),
"dimension_type" => dimension_id_map.get(v).copied(),
"timeline" => timeline_id_map.get(v).copied(),
_ => None,
})
.collect();
let tag_const_name =
format_ident!("{}", tag_name.replace([':', '/'], "_").to_uppercase());
tag_entries.push(quote! {
pub const #tag_const_name: #tag_type_path = (&[#(#values),*], &[#(#ids),*]);
});
tag_map_entries.push(quote! { #tag_name => &#key_pascal::#tag_const_name });
}
let tag_type_path = if is_latest {
quote!(Tag)
} else {
quote!(super::Tag)
};
tag_dicts.push(quote! {
#[allow(non_snake_case)]
pub mod #key_pascal {
#(#tag_entries)* }
pub(crate) static #dict_name: phf::Map<&'static str, &'static #tag_type_path> = phf::phf_map! {
#(#tag_map_entries),* };
});
match_local_map.push(quote! { RegistryKey::#key_pascal => Some(&#dict_name) });
}
if is_latest {
latest_modules.push(quote! {
#(#tag_dicts)*
#[allow(unreachable_patterns)]
pub fn get_latest_map(key: RegistryKey) -> Option<&'static phf::Map<&'static str, &'static Tag>> {
match key { #(#match_local_map,)* _ => None }
}
});
match_get_map
.push(quote! { MinecraftVersion::V_1_21_11 => get_latest_map(tag_category) });
} else {
let mod_name = format_ident!("tags_{}", version);
legacy_modules.push(quote! {
mod #mod_name {
use super::RegistryKey;
#(#tag_dicts)*
pub fn get_map(key: RegistryKey) -> Option<&'static phf::Map<&'static str, &'static super::Tag>> {
match key { #(#match_local_map,)* _ => None }
}
}
});
match_get_map
.push(quote! { MinecraftVersion::V_1_21_9 => tags_1_21_9::get_map(tag_category) });
match_get_map
.push(quote! { MinecraftVersion::V_1_21_7 => tags_1_21_9::get_map(tag_category) });
}
}
// --- Generate RegistryKey Enum ---
let registry_key_enum = EnumCreator {
name: "RegistryKey".to_string(),
values: all_registry_keys.into_iter().collect(),
}
.to_token_stream();
quote! {
use pumpkin_util::version::MinecraftVersion;
pub type Tag = (&'static [&'static str], &'static [u16]);
#registry_key_enum
// Latest tags are exported directly here
#(#latest_modules)*
// Legacy tags are hidden in their own module
#(#legacy_modules)*
pub fn get_tag_values(tag_category: RegistryKey, tag: &str) -> Option<&'static [&'static str]> {
get_latest_map(tag_category).and_then(|m| m.get(tag)).map(|t| t.0)
}
pub fn get_tag_ids(tag_category: RegistryKey, tag: &str) -> Option<&'static [u16]> {
get_latest_map(tag_category).and_then(|m| m.get(tag)).map(|t| t.1)
}
pub fn get_registry_key_tags(version: MinecraftVersion, tag_category: RegistryKey) -> Option<&'static phf::Map<&'static str, &'static Tag>> {
match version {
#(#match_get_map),*,
_ => get_latest_map(tag_category)
}
}
pub trait Taggable {
fn tag_key() -> RegistryKey;
fn registry_key(&self) -> &str;
fn registry_id(&self) -> u16;
fn is_tagged_with(&self, tag: &str) -> Option<bool> {
let tag = tag.strip_prefix("#").unwrap_or(tag);
let items = get_tag_ids(Self::tag_key(), tag)?;
Some(items.contains(&self.registry_id()))
}
fn has_tag(&self, tag: &'static Tag) -> bool {
tag.1.contains(&self.registry_id())
}
fn get_tag_values(tag: &str) -> Option<&'static [&'static str]> {
let tag = tag.strip_prefix("#").unwrap_or(tag);
get_tag_values(Self::tag_key(), tag)
}
}
}
}