mchprs 0.3.0

A multithreaded minecraft server built for redstone.
Documentation
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use super::{PacketEncoder, PacketEncoderExt, SlotData};
use crate::player::Player;

pub trait ClientBoundPacket {
    fn encode(self) -> PacketEncoder;
}

// Server List Ping Packets

pub struct C00Response {
    pub json_response: String,
}

impl ClientBoundPacket for C00Response {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_string(32767, &self.json_response);
        PacketEncoder::new(buf, 0x00)
    }
}

// Login Packets

pub struct C00DisconnectLogin {
    pub reason: String,
}

impl ClientBoundPacket for C00DisconnectLogin {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_string(32767, &self.reason);
        PacketEncoder::new(buf, 0x00)
    }
}

pub struct C01Pong {
    pub payload: i64,
}

impl ClientBoundPacket for C01Pong {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_long(self.payload);
        PacketEncoder::new(buf, 0x01)
    }
}

pub struct C02LoginSuccess {
    pub uuid: u128,
    pub username: String,
}

impl ClientBoundPacket for C02LoginSuccess {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_string(36, &Player::uuid_with_hyphens(self.uuid));
        buf.write_string(16, &self.username);
        PacketEncoder::new(buf, 0x02)
    }
}

pub struct C03SetCompression {
    pub threshold: i32,
}

impl ClientBoundPacket for C03SetCompression {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_varint(self.threshold);
        PacketEncoder::new(buf, 0x03)
    }
}

pub struct C05SpawnPlayer {
    pub entity_id: i32,
    pub uuid: u128,
    pub x: f64,
    pub y: f64,
    pub z: f64,
    pub yaw: f32,
    pub pitch: f32,
    pub on_ground: bool,
}

impl ClientBoundPacket for C05SpawnPlayer {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_varint(self.entity_id);
        buf.write_uuid(self.uuid);
        buf.write_double(self.x);
        buf.write_double(self.y);
        buf.write_double(self.z);
        buf.write_byte((self.yaw % 360f32 / 360f32 * 256f32) as i8);
        buf.write_byte((self.pitch % 360f32 / 360f32 * 256f32) as i8);
        PacketEncoder::new(buf, 0x05)
    }
}

// Play Packets

pub struct C06EntityAnimation {
    pub entity_id: i32,
    pub animation: u8,
}

impl ClientBoundPacket for C06EntityAnimation {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_varint(self.entity_id);
        buf.write_unsigned_byte(self.animation);
        PacketEncoder::new(buf, 0x06)
    }
}

pub struct C0ABlockEntityData {
    pub x: i32,
    pub y: i32,
    pub z: i32,
    pub action: u8,
    pub nbt: nbt::Blob,
}

impl ClientBoundPacket for C0ABlockEntityData {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_position(self.x, self.y, self.z);
        buf.write_unsigned_byte(self.action);
        buf.write_nbt_blob(self.nbt);
        PacketEncoder::new(buf, 0x0A)
    }
}

pub struct C0CBlockChange {
    pub x: i32,
    pub y: i32,
    pub z: i32,
    pub block_id: i32,
}

impl ClientBoundPacket for C0CBlockChange {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_position(self.x, self.y, self.z);
        buf.write_varint(self.block_id);
        PacketEncoder::new(buf, 0x0C)
    }
}

pub struct C0FChatMessage {
    pub message: String,
    pub position: i8,
}

impl ClientBoundPacket for C0FChatMessage {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_string(32767, &self.message);
        buf.write_byte(self.position);
        PacketEncoder::new(buf, 0x0F)
    }
}

pub struct C10MultiBlockChangeRecord {
    pub x: i8,
    pub y: u8,
    pub z: i8,
    pub block_id: i32,
}

pub struct C10MultiBlockChange {
    pub chunk_x: i32,
    pub chunk_z: i32,
    pub records: Vec<C10MultiBlockChangeRecord>,
}

impl ClientBoundPacket for C10MultiBlockChange {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();

        buf.write_int(self.chunk_x);
        buf.write_int(self.chunk_z);
        buf.write_varint(self.records.len() as i32); // Length of record array

        for record in self.records {
            buf.write_byte((record.x << 4) | (record.z & 0x0F)); // 0bXXXXZZZZ
            buf.write_unsigned_byte(record.y);
            buf.write_varint(record.block_id);
        }

        PacketEncoder::new(buf, 0x10)
    }
}

pub enum C12DeclareCommandsNodeParser {
    Entity(i8),
    Vec3,
    Integer(i32, i32),
    BlockPos,
    BlockState,
}

impl C12DeclareCommandsNodeParser {
    fn write(&self, buf: &mut Vec<u8>) {
        use C12DeclareCommandsNodeParser::*;
        match self {
            Entity(flags) => {
                buf.write_string(32767, "minecraft:entity");
                buf.write_byte(*flags);
            }
            Vec3 => buf.write_string(32767, "minecraft:vec3"),
            BlockPos => buf.write_string(32767, "minecraft:block_pos"),
            BlockState => buf.write_string(32767, "minecraft:block_state"),
            Integer(min, max) => {
                buf.write_string(32767, "brigadier:integer");
                buf.write_byte(3); // Supply min and max value
                buf.write_int(*min);
                buf.write_int(*max);
            }
        }
    }
}

pub struct C12DeclareCommandsNode {
    pub flags: i8,
    pub children: Vec<i32>,
    pub redirect_node: Option<i32>,
    pub name: Option<&'static str>,
    pub parser: Option<C12DeclareCommandsNodeParser>,
}

pub struct C12DeclareCommands {
    pub nodes: Vec<C12DeclareCommandsNode>,
    pub root_index: i32,
}

impl ClientBoundPacket for C12DeclareCommands {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_varint(self.nodes.len() as i32);
        for node in self.nodes {
            buf.write_byte(node.flags);
            buf.write_varint(node.children.len() as i32);
            for child in node.children {
                buf.write_varint(child);
            }
            if let Some(redirect_node) = node.redirect_node {
                buf.write_varint(redirect_node);
            }
            if let Some(name) = node.name {
                buf.write_string(32767, &name);
            }
            if let Some(parser) = node.parser {
                parser.write(&mut buf);
            }
        }
        buf.write_varint(self.root_index);
        PacketEncoder::new(buf, 0x12)
    }
}

pub struct C15WindowItems {
    pub window_id: u8,
    pub slot_data: Vec<Option<SlotData>>,
}

impl ClientBoundPacket for C15WindowItems {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_unsigned_byte(self.window_id);
        buf.write_short(self.slot_data.len() as i16);
        for slot_data in self.slot_data {
            if let Some(slot) = slot_data {
                buf.write_bool(true);
                buf.write_varint(slot.item_id);
                buf.write_byte(slot.item_count);
                if let Some(nbt) = slot.nbt {
                    buf.write_nbt_blob(nbt);
                } else {
                    buf.write_byte(0); // End tag
                }
            } else {
                buf.write_bool(false);
            }
        }
        PacketEncoder::new(buf, 0x15)
    }
}

pub struct C19PluginMessageBrand {
    pub brand: String,
}

impl ClientBoundPacket for C19PluginMessageBrand {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_string(32767, "minecraft:brand");
        buf.write_string(32767, &self.brand);
        PacketEncoder::new(buf, 0x19)
    }
}

pub struct C1BDisconnect {
    pub reason: String,
}

impl ClientBoundPacket for C1BDisconnect {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_string(32767, &self.reason);
        PacketEncoder::new(buf, 0x1B)
    }
}

#[derive(Debug)]
pub struct C1EUnloadChunk {
    pub chunk_x: i32,
    pub chunk_z: i32,
}

impl ClientBoundPacket for C1EUnloadChunk {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_int(self.chunk_x);
        buf.write_int(self.chunk_z);
        PacketEncoder::new(buf, 0x1E)
    }
}

pub struct C21KeepAlive {
    pub id: i64,
}

impl ClientBoundPacket for C21KeepAlive {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_long(self.id);
        PacketEncoder::new(buf, 0x21)
    }
}

pub struct C22ChunkDataSection {
    pub block_count: i16,
    pub bits_per_block: u8,
    pub palette: Option<Vec<i32>>,
    pub data_array: Vec<u64>,
}

pub struct C22ChunkData {
    pub chunk_x: i32,
    pub chunk_z: i32,
    pub full_chunk: bool,
    pub primary_bit_mask: i32,
    pub heightmaps: nbt::Blob,
    pub chunk_sections: Vec<C22ChunkDataSection>,
    pub biomes: Option<Vec<i32>>,
    pub block_entities: Vec<nbt::Blob>,
}

impl ClientBoundPacket for C22ChunkData {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_int(self.chunk_x);
        buf.write_int(self.chunk_z);
        buf.write_boolean(self.full_chunk);
        buf.write_varint(self.primary_bit_mask);
        let mut heightmaps = Vec::new();
        self.heightmaps.to_writer(&mut heightmaps).unwrap();
        buf.write_bytes(heightmaps);
        if let Some(biomes) = self.biomes {
            for biome in biomes {
                buf.write_int(biome);
            }
        }
        let mut data = Vec::new();
        for chunk_section in self.chunk_sections {
            data.write_short(chunk_section.block_count);
            data.write_unsigned_byte(chunk_section.bits_per_block);
            if let Some(palette) = chunk_section.palette {
                data.write_varint(palette.len() as i32);
                for palette_entry in palette {
                    data.write_varint(palette_entry);
                }
            }
            data.write_varint(chunk_section.data_array.len() as i32);
            for long in chunk_section.data_array {
                data.write_long(long as i64);
            }
        }
        buf.write_varint(data.len() as i32);
        buf.write_bytes(data);
        // Number of block entities
        buf.write_varint(self.block_entities.len() as i32);
        for block_entity in self.block_entities {
            buf.write_nbt_blob(block_entity);
        }
        PacketEncoder::new(buf, 0x22)
    }
}

pub struct C23Effect {
    pub effect_id: i32,
    pub x: i32,
    pub y: i32,
    pub z: i32,
    pub data: i32,
    pub disable_relative_volume: bool,
}

impl ClientBoundPacket for C23Effect {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_int(self.effect_id);
        buf.write_position(self.x, self.y, self.z);
        buf.write_int(self.data);
        buf.write_bool(self.disable_relative_volume);
        PacketEncoder::new(buf, 0x23)
    }
}

pub struct C26JoinGame {
    pub entity_id: i32,
    pub gamemode: u8,
    pub dimention: i32,
    pub hash_seed: i64,
    pub max_players: u8,
    pub level_type: String,
    pub view_distance: i32,
    pub reduced_debug_info: bool,
    pub enable_respawn_screen: bool,
}

impl ClientBoundPacket for C26JoinGame {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_int(self.entity_id);
        buf.write_unsigned_byte(self.gamemode);
        buf.write_int(self.dimention);
        buf.write_long(self.hash_seed);
        buf.write_unsigned_byte(self.max_players);
        buf.write_string(16, &self.level_type);
        buf.write_varint(self.view_distance);
        buf.write_boolean(self.reduced_debug_info);
        buf.write_boolean(self.enable_respawn_screen);
        PacketEncoder::new(buf, 0x26)
    }
}

pub struct C29EntityPosition {
    pub entity_id: i32,
    pub delta_x: i16,
    pub delta_y: i16,
    pub delta_z: i16,
    pub on_ground: bool,
}

impl ClientBoundPacket for C29EntityPosition {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_varint(self.entity_id);
        buf.write_short(self.delta_x);
        buf.write_short(self.delta_y);
        buf.write_short(self.delta_z);
        buf.write_bool(self.on_ground);
        PacketEncoder::new(buf, 0x29)
    }
}

pub struct C2AEntityPositionAndRotation {
    pub entity_id: i32,
    pub delta_x: i16,
    pub delta_y: i16,
    pub delta_z: i16,
    pub yaw: f32,
    pub pitch: f32,
    pub on_ground: bool,
}

impl ClientBoundPacket for C2AEntityPositionAndRotation {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_varint(self.entity_id);
        buf.write_short(self.delta_x);
        buf.write_short(self.delta_y);
        buf.write_short(self.delta_z);
        buf.write_byte((self.yaw % 360f32 / 360f32 * 256f32) as i8);
        buf.write_byte((self.pitch % 360f32 / 360f32 * 256f32) as i8);
        buf.write_bool(self.on_ground);
        PacketEncoder::new(buf, 0x2A)
    }
}

pub struct C2BEntityRotation {
    pub entity_id: i32,
    pub yaw: f32,
    pub pitch: f32,
    pub on_ground: bool,
}

impl ClientBoundPacket for C2BEntityRotation {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_varint(self.entity_id);
        buf.write_byte((self.yaw % 360f32 / 360f32 * 256f32) as i8);
        buf.write_byte((self.pitch % 360f32 / 360f32 * 256f32) as i8);
        buf.write_bool(self.on_ground);
        PacketEncoder::new(buf, 0x2B)
    }
}

pub struct C2CEntityMovement {
    pub entity_id: i32,
}

impl ClientBoundPacket for C2CEntityMovement {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_varint(self.entity_id);
        PacketEncoder::new(buf, 0x2C)
    }
}

pub struct C32PlayerAbilities {
    pub flags: u8,
    pub fly_speed: f32,
    pub fov_modifier: f32,
}

impl ClientBoundPacket for C32PlayerAbilities {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_unsigned_byte(self.flags);
        buf.write_float(self.fly_speed);
        buf.write_float(self.fov_modifier);
        PacketEncoder::new(buf, 0x32)
    }
}

pub struct C34PlayerInfoAddPlayerProperty {
    name: String,
    value: String,
    signature: Option<String>,
}

pub struct C34PlayerInfoAddPlayer {
    pub uuid: u128,
    pub name: String,
    pub properties: Vec<C34PlayerInfoAddPlayerProperty>,
    pub gamemode: i32,
    pub ping: i32,
    pub display_name: Option<String>,
}

pub enum C34PlayerInfo {
    AddPlayer(Vec<C34PlayerInfoAddPlayer>),
    RemovePlayer(Vec<u128>),
}

impl ClientBoundPacket for C34PlayerInfo {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        match self {
            C34PlayerInfo::AddPlayer(ps) => {
                buf.write_varint(0);
                buf.write_varint(ps.len() as i32);
                for p in ps {
                    buf.write_uuid(p.uuid);
                    buf.write_string(16, &p.name);
                    buf.write_varint(p.properties.len() as i32);
                    for prop in p.properties {
                        buf.write_string(32767, &prop.name);
                        buf.write_string(32767, &prop.value);
                        buf.write_boolean(prop.signature.is_some());
                        if let Some(signature) = prop.signature {
                            buf.write_string(32767, &signature);
                        }
                    }
                    buf.write_varint(p.gamemode);
                    buf.write_varint(p.ping);
                    buf.write_boolean(p.display_name.is_some());
                    if let Some(display_name) = p.display_name {
                        buf.write_string(32767, &display_name);
                    }
                }
            }
            C34PlayerInfo::RemovePlayer(uuids) => {
                buf.write_varint(4);
                buf.write_varint(uuids.len() as i32);
                for uuid in uuids {
                    buf.write_uuid(uuid);
                }
            }
        }
        PacketEncoder::new(buf, 0x34)
    }
}

pub struct C36PlayerPositionAndLook {
    pub x: f64,
    pub y: f64,
    pub z: f64,
    pub yaw: f32,
    pub pitch: f32,
    pub flags: u8,
    pub teleport_id: i32,
}

impl ClientBoundPacket for C36PlayerPositionAndLook {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_double(self.x);
        buf.write_double(self.y);
        buf.write_double(self.z);
        buf.write_float(self.yaw);
        buf.write_float(self.pitch);
        buf.write_unsigned_byte(self.flags);
        buf.write_varint(self.teleport_id);
        PacketEncoder::new(buf, 0x36)
    }
}

pub struct C3CEntityHeadLook {
    pub entity_id: i32,
    pub yaw: f32,
}

impl ClientBoundPacket for C3CEntityHeadLook {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_varint(self.entity_id);
        buf.write_byte((self.yaw % 360f32 / 360f32 * 256f32) as i8);
        PacketEncoder::new(buf, 0x3C)
    }
}

pub struct C40HeldItemChange {
    pub slot: i8,
}

impl ClientBoundPacket for C40HeldItemChange {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_byte(self.slot);
        PacketEncoder::new(buf, 0x40)
    }
}

pub struct C41UpdateViewPosition {
    pub chunk_x: i32,
    pub chunk_z: i32,
}

impl ClientBoundPacket for C41UpdateViewPosition {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_varint(self.chunk_x);
        buf.write_varint(self.chunk_z);
        PacketEncoder::new(buf, 0x41)
    }
}

pub struct C44EntityMetadataEntry {
    pub index: u8,
    pub metadata_type: i32,
    pub value: Vec<u8>,
}

pub struct C44EntityMetadata {
    pub entity_id: i32,
    pub metadata: Vec<C44EntityMetadataEntry>,
}

impl ClientBoundPacket for C44EntityMetadata {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_varint(self.entity_id);
        for entry in self.metadata {
            buf.write_unsigned_byte(entry.index);
            buf.write_varint(entry.metadata_type);
            buf.write_bytes(entry.value);
        }
        buf.write_byte(-1); // 0xFF
        PacketEncoder::new(buf, 0x44)
    }
}

pub struct C47EntityEquipment {
    pub entity_id: i32,
    pub slot: i32,
    pub item: Option<SlotData>,
}

impl ClientBoundPacket for C47EntityEquipment {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_varint(self.entity_id);
        buf.write_varint(self.slot);
        if let Some(slot) = self.item {
            buf.write_bool(true);
            buf.write_varint(slot.item_id);
            buf.write_byte(slot.item_count);
            if let Some(nbt) = slot.nbt {
                buf.write_nbt_blob(nbt);
            } else {
                buf.write_byte(0); // End tag
            }
        } else {
            buf.write_bool(false);
        }
        PacketEncoder::new(buf, 0x47)
    }
}

pub struct C4FTimeUpdate {
    pub world_age: i64,
    pub time_of_day: i64,
}

impl ClientBoundPacket for C4FTimeUpdate {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_long(self.world_age);
        buf.write_long(self.time_of_day);
        PacketEncoder::new(buf, 0x4F)
    }
}

pub struct C57EntityTeleport {
    pub entity_id: i32,
    pub x: f64,
    pub y: f64,
    pub z: f64,
    pub yaw: f32,
    pub pitch: f32,
    pub on_ground: bool,
}

impl ClientBoundPacket for C57EntityTeleport {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_varint(self.entity_id);
        buf.write_double(self.x);
        buf.write_double(self.y);
        buf.write_double(self.z);
        buf.write_byte((self.yaw % 360f32 / 360f32 * 256f32) as i8);
        buf.write_byte((self.pitch % 360f32 / 360f32 * 256f32) as i8);
        buf.write_bool(self.on_ground);
        PacketEncoder::new(buf, 0x57)
    }
}

pub struct C38DestroyEntities {
    pub entity_ids: Vec<i32>,
}

impl ClientBoundPacket for C38DestroyEntities {
    fn encode(self) -> PacketEncoder {
        let mut buf = Vec::new();
        buf.write_varint(self.entity_ids.len() as i32);
        for entity_id in self.entity_ids {
            buf.write_varint(entity_id);
        }
        PacketEncoder::new(buf, 0x38)
    }
}