51 lines
1.3 KiB
Rust
51 lines
1.3 KiB
Rust
use std::collections::HashMap;
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use proc_macro2::TokenStream;
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use quote::quote;
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use serde::Deserialize;
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use crate::ident;
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#[derive(Deserialize)]
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pub struct Packets {
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serverbound: HashMap<String, Vec<String>>,
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clientbound: HashMap<String, Vec<String>>,
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}
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pub(crate) fn build() -> TokenStream {
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println!("cargo:rerun-if-changed=assets/packets.json");
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let packets: Packets = serde_json::from_str(include_str!("../../assets/packets.json"))
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.expect("Failed to parse packets.json");
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let serverbound_consts = parse_packets(packets.serverbound);
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let clientbound_consts = parse_packets(packets.clientbound);
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quote!(
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pub mod serverbound {
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#serverbound_consts
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}
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pub mod clientbound {
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#clientbound_consts
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}
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)
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}
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pub(crate) fn parse_packets(packets: HashMap<String, Vec<String>>) -> proc_macro2::TokenStream {
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let mut consts = TokenStream::new();
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for packet in packets {
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let phase = packet.0;
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for (id, packet_name) in packet.1.iter().enumerate() {
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let packet_id = id as i32;
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let name = format!("{phase}_{packet_name}").to_uppercase();
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let name = ident(name);
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consts.extend([quote! {
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pub const #name: i32 = #packet_id;
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}]);
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}
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}
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consts
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}
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