Struct World 

pub struct World {
    pub chunks: ChunkStorage,
    pub entities_by_chunk: HashMap<ChunkPos, HashSet<Entity>>,
    pub entity_by_id: IntMap<MinecraftEntityId, Entity>,
    pub registries: RegistryHolder,
}

A Minecraft world, sometimes referred to as a dimension.

This is the most commonly used type to interact with the world that a client is in. In here, all chunks are stored as weak pointers, which means that clients in different areas of the same world can share the same World instance.

Also see PartialWorld.

Note that this is distinct from Bevy’s World type, which contains all of the data for every client. When referring to the Bevy World within Azalea, the term “ECS” is generally used instead.

Fields

chunks: ChunkStorage

entities_by_chunk: HashMap<ChunkPos, HashSet<Entity>>

An index of all the entities we know are in the chunks of the world

entity_by_id: IntMap<MinecraftEntityId, Entity>

An index of Minecraft entity IDs to Azalea ECS entities.

You should avoid using this (particularly if you’re using swarms) and instead use azalea_entity::EntityIdIndex, since some servers may give different entity IDs for the same entities to different players.

registries: RegistryHolder

Implementations

impl World

pub fn find_block( &self, nearest_to: impl Into<BlockPos>, block_states: &BlockStates, ) -> Option<BlockPos>

Find the coordinates of a block in the world.

Note that this is sorted by x+y+z and not x^2+y^2+z^2 for performance purposes.

let pos = world.find_block(position, &BlockKind::Chest.into());

pub fn find_blocks<'a>( &'a self, nearest_to: impl Into<BlockPos>, block_states: &'a BlockStates, ) -> FindBlocks<'a>

Find all the coordinates of a block in the world.

This returns an iterator that yields the BlockPoss of blocks that are in the given block states.

Note that this is sorted by x+y+z and not x^2+y^2+z^2 for performance purposes.

Examples found in repository

azalea/examples/steal.rs (line 58)

async fn steal(bot: Client, state: State) -> eyre::Result<()> {
    {
        let mut is_stealing = state.is_stealing.lock();
        if *is_stealing {
            bot.chat("Already stealing");
            return Ok(());
        }
        *is_stealing = true;
    }

    state.checked_chests.lock().clear();

    loop {
        let chest_block = bot
            .world()
            .read()
            .find_blocks(bot.position(), &BlockKind::Chest.into())
            .find(
                // find the closest chest that hasn't been checked
                |block_pos| !state.checked_chests.lock().contains(block_pos),
            );
        let Some(chest_block) = chest_block else {
            break;
        };

        state.checked_chests.lock().push(chest_block);

        bot.goto(RadiusGoal::new(chest_block.center(), 3.)).await;

        let Some(chest) = bot.open_container_at(chest_block).await else {
            println!("Couldn't open chest at {chest_block:?}");
            continue;
        };

        println!("Getting contents of chest at {chest_block:?}");
        for (index, slot) in chest.contents().unwrap_or_default().iter().enumerate() {
            println!("Checking slot {index}: {slot:?}");
            let ItemStack::Present(item) = slot else {
                continue;
            };
            if item.kind == ItemKind::Diamond {
                println!("clicking slot ^");
                chest.left_click(index);
            }
        }
    }

    bot.chat("Done");

    *state.is_stealing.lock() = false;

    Ok(())
}

impl World

pub fn get_block_state(&self, pos: BlockPos) -> Option<BlockState>

Get the block at the given position, or None if it’s outside of the world that we have loaded.

Examples found in repository

azalea/examples/testbot/commands/debug.rs (line 129)

pub fn register(commands: &mut CommandDispatcher<Mutex<CommandSource>>) {
    commands.register(literal("ping").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        source.reply("pong!");
        1
    }));
    commands.register(
        literal("say").then(argument("message", greedy_string()).executes(|ctx: &Ctx| {
            let source = ctx.source.lock();
            let message = get_string(ctx, "message").unwrap();
            source.bot.chat(message);
            1
        })),
    );

    commands.register(literal("disconnect").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        source.bot.disconnect();
        1
    }));

    commands.register(literal("whereami").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        let Some(entity) = source.entity() else {
            source.reply("You aren't in render distance!");
            return 0;
        };
        let position = entity.position();
        source.reply(format!(
            "You are at {}, {}, {}",
            position.x, position.y, position.z
        ));
        1
    }));

    commands.register(literal("entityid").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        let Some(entity) = source.entity() else {
            source.reply("You aren't in render distance!");
            return 0;
        };
        let entity_id = entity.minecraft_id();
        source.reply(format!(
            "Your Minecraft ID is {} and your ECS ID is {entity:?}",
            *entity_id
        ));
        1
    }));

    let whereareyou = |ctx: &Ctx| {
        let source = ctx.source.lock();
        let position = source.bot.position();
        source.reply(format!(
            "I'm at {}, {}, {}",
            position.x, position.y, position.z
        ));
        1
    };
    commands.register(literal("whereareyou").executes(whereareyou));
    commands.register(literal("pos").executes(whereareyou));

    commands.register(literal("whoareyou").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        source.reply(format!(
            "I am {} ({}, {})",
            source.bot.username(),
            source.bot.uuid(),
            source.bot.entity
        ));
        1
    }));

    commands.register(literal("getdirection").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        let direction = source.bot.direction();
        source.reply(format!(
            "I'm looking at {}, {}",
            direction.y_rot(),
            direction.x_rot()
        ));
        1
    }));

    commands.register(literal("health").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();

        let health = source.bot.health();
        source.reply(format!("I have {health} health"));
        1
    }));

    commands.register(literal("lookingat").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();

        let hit_result = source.bot.hit_result();

        match &hit_result {
            HitResult::Block(r) => {
                if r.miss {
                    source.reply("I'm not looking at anything");
                    return 0;
                }
                let block_pos = r.block_pos;
                let block = source.bot.world().read().get_block_state(block_pos);
                source.reply(format!("I'm looking at {block:?} at {block_pos:?}"));
            }
            HitResult::Entity(r) => {
                let entity_kind = **source.bot.entity_component::<EntityKindComponent>(r.entity);
                source.reply(format!(
                    "I'm looking at {entity_kind} ({:?}) at {}",
                    r.entity, r.location
                ));
            }
        }

        1
    }));

    commands.register(literal("getblock").then(argument("x", integer()).then(
        argument("y", integer()).then(argument("z", integer()).executes(|ctx: &Ctx| {
            let source = ctx.source.lock();
            let x = get_integer(ctx, "x").unwrap();
            let y = get_integer(ctx, "y").unwrap();
            let z = get_integer(ctx, "z").unwrap();
            println!("getblock xyz {x} {y} {z}");
            let block_pos = BlockPos::new(x, y, z);
            let block = source.bot.world().read().get_block_state(block_pos);
            source.reply(format!("BlockKind at {block_pos} is {block:?}"));
            1
        })),
    )));
    commands.register(literal("getfluid").then(argument("x", integer()).then(
        argument("y", integer()).then(argument("z", integer()).executes(|ctx: &Ctx| {
            let source = ctx.source.lock();
            let x = get_integer(ctx, "x").unwrap();
            let y = get_integer(ctx, "y").unwrap();
            let z = get_integer(ctx, "z").unwrap();
            println!("getfluid xyz {x} {y} {z}");
            let block_pos = BlockPos::new(x, y, z);
            let block = source.bot.world().read().get_fluid_state(block_pos);
            source.reply(format!("Fluid at {block_pos} is {block:?}"));
            1
        })),
    )));

    commands.register(literal("inventory").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        for item in source.bot.menu().slots() {
            if item.is_empty() {
                continue;
            }
            println!("{item:?}");
            for (kind, data) in item.component_patch().iter() {
                if let Some(data) = data {
                    println!("- {kind} {data:?}");
                }
            }
        }
        1
    }));

    commands.register(literal("pathfinderstate").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        let pathfinder = source.bot.get_component::<Pathfinder>();
        let Some(pathfinder) = pathfinder else {
            source.reply("I don't have the Pathfinder component");
            return 1;
        };
        source.reply(format!(
            "pathfinder.is_calculating: {}",
            pathfinder.is_calculating
        ));

        let executing_path = source.bot.get_component::<ExecutingPath>();
        let Some(executing_path) = executing_path else {
            source.reply("I'm not executing a path");
            return 1;
        };
        source.reply(format!(
            "is_path_partial: {}, path.len: {}, queued_path.len: {}",
            executing_path.is_path_partial,
            executing_path.path.len(),
            if let Some(queued) = &executing_path.queued_path {
                queued.len().to_string()
            } else {
                "n/a".to_owned()
            },
        ));
        1
    }));
    commands.register(literal("pathfindermoves").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();

        let Some(entity) = source.entity() else {
            source.reply("You aren't in render distance!");
            return 0;
        };
        let position = entity.position();
        let position = BlockPos::from(position);

        let mut edges = Vec::new();
        let cached_world = CachedWorld::new(source.bot.world(), position);
        let mining_cache = MiningCache::new(Some(Menu::Player(inventory::Player::default())));
        let custom_state = CustomPathfinderStateRef::default();

        azalea::pathfinder::moves::default_move(
            &mut MovesCtx {
                edges: &mut edges,
                world: &cached_world,
                mining_cache: &mining_cache,
                custom_state: &custom_state,
            },
            RelBlockPos::from_origin(position, position),
        );

        if edges.is_empty() {
            source.reply("No possible moves.");
        } else {
            source.reply("Moves:");
            for (i, edge) in edges.iter().enumerate() {
                source.reply(format!("{}) {edge:?}", i + 1));
            }
        }

        1
    }));

    commands.register(literal("startuseitem").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        source.bot.start_use_item();
        source.reply("Ok!");
        1
    }));
    commands.register(literal("maxstacksize").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        let max_stack_size = source
            .bot
            .get_held_item()
            .get_component::<MaxStackSize>()
            .map_or(-1, |s| s.count);
        source.reply(format!("{max_stack_size}"));
        1
    }));

    commands.register(literal("dimensions").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        let bot_dimensions = source.bot.dimensions();
        source.reply(format!("{bot_dimensions:?}"));
        1
    }));

    commands.register(literal("players").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        let player_entities = source
            .bot
            .nearest_entities_by::<(), With<metadata::Player>>(|_: ()| true);
        let tab_list = source.bot.tab_list();
        for player_entity in player_entities {
            let uuid = player_entity.uuid();
            source.reply(format!(
                "{} - {} ({:?})",
                player_entity.id(),
                tab_list.get(&uuid).map_or("?", |p| p.profile.name.as_str()),
                uuid
            ));
        }
        1
    }));

    commands.register(literal("enchants").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        source.bot.with_registry_holder(|r| {
            let enchants = &r.enchantment;
            println!("enchants: {enchants:?}");
        });
        1
    }));

    commands.register(literal("attributes").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        let attributes = source.bot.attributes();
        println!("attributes: {attributes:?}");
        1
    }));

    commands.register(literal("debugecsleak").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();

        source.reply("Ok!");



        source.bot.disconnect();

        let ecs = source.bot.ecs.clone();
        thread::spawn(move || {
            thread::sleep(Duration::from_secs(1));
            // dump the ecs

            let mut ecs = ecs.write();

            let report_path = env::temp_dir().join("azalea-ecs-leak-report.txt");
            let mut report = File::create(&report_path).unwrap();

            let mut query = ecs.query::<EntityRef>();
            for entity in query.iter(& ecs) {
                writeln!(report, "Entity: {}", entity.id()).unwrap();
                let archetype = entity.archetype();
                let component_count = archetype.component_count();

                let component_names = archetype
                    .components()
                    .iter()
                    .map(|c| ecs.components().get_info(*c).unwrap().name().to_string())
                    .collect::<Vec<_>>();
                writeln!(
                    report,
                    "- {component_count} components: {}",
                    component_names.join(", ")
                )
                .unwrap();
            }

            writeln!(report).unwrap();


            for (info, _) in ecs.iter_resources() {
                let name = info.name().to_string();
                writeln!(report, "Resource: {name}").unwrap();
                // writeln!(report, "- Size: {} bytes",
                // info.layout().size()).unwrap();

                match name.as_ref() {
                    "azalea_world::container::Worlds" => {
                        let worlds = ecs.resource::<Worlds>();

                        for (world_name, world) in &worlds.map {
                            writeln!(report, "- Name: {world_name}").unwrap();
                            writeln!(report, "- Reference count: {}", world.strong_count())
                                .unwrap();
                            if let Some(world) = world.upgrade() {
                                let world = world.read();
                                let chunks = &world.chunks;
                                let chunks = (chunks as &dyn Any).downcast_ref::<WeakChunkStorage>();
                                if let Some(chunks) = chunks {
                                    let strong_chunks = chunks
                                        .map
                                        .iter()
                                        .filter(|(_, v)| v.strong_count() > 0)
                                        .count();
                                    writeln!(
                                        report,
                                        "- Chunks: {} strongly referenced, {} in map",
                                        strong_chunks,
                                        chunks.map.len()
                                    )
                                    .unwrap();
                                }
                                writeln!(
                                    report,
                                    "- Entities: {}",
                                    world.entities_by_chunk.len()
                                )
                                .unwrap();
                            }
                        }
                    }
                    "bevy_ecs::message::Messages<azalea_client::packet::game::ReceivePacketEvent>" => {
                        let events = ecs.resource::<Messages<game::ReceiveGamePacketEvent>>();
                        writeln!(report, "- Event count: {}", events.len()).unwrap();
                    }
                    "bevy_ecs::message::Messages<azalea_client::chunks::ReceiveChunkEvent>" => {
                        let events = ecs.resource::<Messages<ReceiveChunkEvent>>();
                        writeln!(report, "- Event count: {}", events.len()).unwrap();
                    }

                    _ => {}
                }
            }

            println!("\x1b[1mWrote report to {}\x1b[m", report_path.display());
        });

        1
    }));

    commands.register(literal("exit").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        source.reply("bye!");

        source.bot.disconnect();

        let source = ctx.source.clone();
        thread::spawn(move || {
            thread::sleep(Duration::from_secs(1));

            source
                .lock()
                .bot
                .ecs
                .write()
                .write_message(AppExit::Success);
        });

        1
    }));
}

pub fn get_fluid_state(&self, pos: BlockPos) -> Option<FluidState>

Similar to Self::get_block_state, but returns data about the fluid at the position, including for waterlogged blocks.

Examples found in repository

azalea/examples/testbot/commands/debug.rs (line 165)

pub fn register(commands: &mut CommandDispatcher<Mutex<CommandSource>>) {
    commands.register(literal("ping").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        source.reply("pong!");
        1
    }));
    commands.register(
        literal("say").then(argument("message", greedy_string()).executes(|ctx: &Ctx| {
            let source = ctx.source.lock();
            let message = get_string(ctx, "message").unwrap();
            source.bot.chat(message);
            1
        })),
    );

    commands.register(literal("disconnect").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        source.bot.disconnect();
        1
    }));

    commands.register(literal("whereami").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        let Some(entity) = source.entity() else {
            source.reply("You aren't in render distance!");
            return 0;
        };
        let position = entity.position();
        source.reply(format!(
            "You are at {}, {}, {}",
            position.x, position.y, position.z
        ));
        1
    }));

    commands.register(literal("entityid").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        let Some(entity) = source.entity() else {
            source.reply("You aren't in render distance!");
            return 0;
        };
        let entity_id = entity.minecraft_id();
        source.reply(format!(
            "Your Minecraft ID is {} and your ECS ID is {entity:?}",
            *entity_id
        ));
        1
    }));

    let whereareyou = |ctx: &Ctx| {
        let source = ctx.source.lock();
        let position = source.bot.position();
        source.reply(format!(
            "I'm at {}, {}, {}",
            position.x, position.y, position.z
        ));
        1
    };
    commands.register(literal("whereareyou").executes(whereareyou));
    commands.register(literal("pos").executes(whereareyou));

    commands.register(literal("whoareyou").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        source.reply(format!(
            "I am {} ({}, {})",
            source.bot.username(),
            source.bot.uuid(),
            source.bot.entity
        ));
        1
    }));

    commands.register(literal("getdirection").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        let direction = source.bot.direction();
        source.reply(format!(
            "I'm looking at {}, {}",
            direction.y_rot(),
            direction.x_rot()
        ));
        1
    }));

    commands.register(literal("health").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();

        let health = source.bot.health();
        source.reply(format!("I have {health} health"));
        1
    }));

    commands.register(literal("lookingat").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();

        let hit_result = source.bot.hit_result();

        match &hit_result {
            HitResult::Block(r) => {
                if r.miss {
                    source.reply("I'm not looking at anything");
                    return 0;
                }
                let block_pos = r.block_pos;
                let block = source.bot.world().read().get_block_state(block_pos);
                source.reply(format!("I'm looking at {block:?} at {block_pos:?}"));
            }
            HitResult::Entity(r) => {
                let entity_kind = **source.bot.entity_component::<EntityKindComponent>(r.entity);
                source.reply(format!(
                    "I'm looking at {entity_kind} ({:?}) at {}",
                    r.entity, r.location
                ));
            }
        }

        1
    }));

    commands.register(literal("getblock").then(argument("x", integer()).then(
        argument("y", integer()).then(argument("z", integer()).executes(|ctx: &Ctx| {
            let source = ctx.source.lock();
            let x = get_integer(ctx, "x").unwrap();
            let y = get_integer(ctx, "y").unwrap();
            let z = get_integer(ctx, "z").unwrap();
            println!("getblock xyz {x} {y} {z}");
            let block_pos = BlockPos::new(x, y, z);
            let block = source.bot.world().read().get_block_state(block_pos);
            source.reply(format!("BlockKind at {block_pos} is {block:?}"));
            1
        })),
    )));
    commands.register(literal("getfluid").then(argument("x", integer()).then(
        argument("y", integer()).then(argument("z", integer()).executes(|ctx: &Ctx| {
            let source = ctx.source.lock();
            let x = get_integer(ctx, "x").unwrap();
            let y = get_integer(ctx, "y").unwrap();
            let z = get_integer(ctx, "z").unwrap();
            println!("getfluid xyz {x} {y} {z}");
            let block_pos = BlockPos::new(x, y, z);
            let block = source.bot.world().read().get_fluid_state(block_pos);
            source.reply(format!("Fluid at {block_pos} is {block:?}"));
            1
        })),
    )));

    commands.register(literal("inventory").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        for item in source.bot.menu().slots() {
            if item.is_empty() {
                continue;
            }
            println!("{item:?}");
            for (kind, data) in item.component_patch().iter() {
                if let Some(data) = data {
                    println!("- {kind} {data:?}");
                }
            }
        }
        1
    }));

    commands.register(literal("pathfinderstate").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        let pathfinder = source.bot.get_component::<Pathfinder>();
        let Some(pathfinder) = pathfinder else {
            source.reply("I don't have the Pathfinder component");
            return 1;
        };
        source.reply(format!(
            "pathfinder.is_calculating: {}",
            pathfinder.is_calculating
        ));

        let executing_path = source.bot.get_component::<ExecutingPath>();
        let Some(executing_path) = executing_path else {
            source.reply("I'm not executing a path");
            return 1;
        };
        source.reply(format!(
            "is_path_partial: {}, path.len: {}, queued_path.len: {}",
            executing_path.is_path_partial,
            executing_path.path.len(),
            if let Some(queued) = &executing_path.queued_path {
                queued.len().to_string()
            } else {
                "n/a".to_owned()
            },
        ));
        1
    }));
    commands.register(literal("pathfindermoves").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();

        let Some(entity) = source.entity() else {
            source.reply("You aren't in render distance!");
            return 0;
        };
        let position = entity.position();
        let position = BlockPos::from(position);

        let mut edges = Vec::new();
        let cached_world = CachedWorld::new(source.bot.world(), position);
        let mining_cache = MiningCache::new(Some(Menu::Player(inventory::Player::default())));
        let custom_state = CustomPathfinderStateRef::default();

        azalea::pathfinder::moves::default_move(
            &mut MovesCtx {
                edges: &mut edges,
                world: &cached_world,
                mining_cache: &mining_cache,
                custom_state: &custom_state,
            },
            RelBlockPos::from_origin(position, position),
        );

        if edges.is_empty() {
            source.reply("No possible moves.");
        } else {
            source.reply("Moves:");
            for (i, edge) in edges.iter().enumerate() {
                source.reply(format!("{}) {edge:?}", i + 1));
            }
        }

        1
    }));

    commands.register(literal("startuseitem").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        source.bot.start_use_item();
        source.reply("Ok!");
        1
    }));
    commands.register(literal("maxstacksize").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        let max_stack_size = source
            .bot
            .get_held_item()
            .get_component::<MaxStackSize>()
            .map_or(-1, |s| s.count);
        source.reply(format!("{max_stack_size}"));
        1
    }));

    commands.register(literal("dimensions").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        let bot_dimensions = source.bot.dimensions();
        source.reply(format!("{bot_dimensions:?}"));
        1
    }));

    commands.register(literal("players").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        let player_entities = source
            .bot
            .nearest_entities_by::<(), With<metadata::Player>>(|_: ()| true);
        let tab_list = source.bot.tab_list();
        for player_entity in player_entities {
            let uuid = player_entity.uuid();
            source.reply(format!(
                "{} - {} ({:?})",
                player_entity.id(),
                tab_list.get(&uuid).map_or("?", |p| p.profile.name.as_str()),
                uuid
            ));
        }
        1
    }));

    commands.register(literal("enchants").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        source.bot.with_registry_holder(|r| {
            let enchants = &r.enchantment;
            println!("enchants: {enchants:?}");
        });
        1
    }));

    commands.register(literal("attributes").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        let attributes = source.bot.attributes();
        println!("attributes: {attributes:?}");
        1
    }));

    commands.register(literal("debugecsleak").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();

        source.reply("Ok!");



        source.bot.disconnect();

        let ecs = source.bot.ecs.clone();
        thread::spawn(move || {
            thread::sleep(Duration::from_secs(1));
            // dump the ecs

            let mut ecs = ecs.write();

            let report_path = env::temp_dir().join("azalea-ecs-leak-report.txt");
            let mut report = File::create(&report_path).unwrap();

            let mut query = ecs.query::<EntityRef>();
            for entity in query.iter(& ecs) {
                writeln!(report, "Entity: {}", entity.id()).unwrap();
                let archetype = entity.archetype();
                let component_count = archetype.component_count();

                let component_names = archetype
                    .components()
                    .iter()
                    .map(|c| ecs.components().get_info(*c).unwrap().name().to_string())
                    .collect::<Vec<_>>();
                writeln!(
                    report,
                    "- {component_count} components: {}",
                    component_names.join(", ")
                )
                .unwrap();
            }

            writeln!(report).unwrap();


            for (info, _) in ecs.iter_resources() {
                let name = info.name().to_string();
                writeln!(report, "Resource: {name}").unwrap();
                // writeln!(report, "- Size: {} bytes",
                // info.layout().size()).unwrap();

                match name.as_ref() {
                    "azalea_world::container::Worlds" => {
                        let worlds = ecs.resource::<Worlds>();

                        for (world_name, world) in &worlds.map {
                            writeln!(report, "- Name: {world_name}").unwrap();
                            writeln!(report, "- Reference count: {}", world.strong_count())
                                .unwrap();
                            if let Some(world) = world.upgrade() {
                                let world = world.read();
                                let chunks = &world.chunks;
                                let chunks = (chunks as &dyn Any).downcast_ref::<WeakChunkStorage>();
                                if let Some(chunks) = chunks {
                                    let strong_chunks = chunks
                                        .map
                                        .iter()
                                        .filter(|(_, v)| v.strong_count() > 0)
                                        .count();
                                    writeln!(
                                        report,
                                        "- Chunks: {} strongly referenced, {} in map",
                                        strong_chunks,
                                        chunks.map.len()
                                    )
                                    .unwrap();
                                }
                                writeln!(
                                    report,
                                    "- Entities: {}",
                                    world.entities_by_chunk.len()
                                )
                                .unwrap();
                            }
                        }
                    }
                    "bevy_ecs::message::Messages<azalea_client::packet::game::ReceivePacketEvent>" => {
                        let events = ecs.resource::<Messages<game::ReceiveGamePacketEvent>>();
                        writeln!(report, "- Event count: {}", events.len()).unwrap();
                    }
                    "bevy_ecs::message::Messages<azalea_client::chunks::ReceiveChunkEvent>" => {
                        let events = ecs.resource::<Messages<ReceiveChunkEvent>>();
                        writeln!(report, "- Event count: {}", events.len()).unwrap();
                    }

                    _ => {}
                }
            }

            println!("\x1b[1mWrote report to {}\x1b[m", report_path.display());
        });

        1
    }));

    commands.register(literal("exit").executes(|ctx: &Ctx| {
        let source = ctx.source.lock();
        source.reply("bye!");

        source.bot.disconnect();

        let source = ctx.source.clone();
        thread::spawn(move || {
            thread::sleep(Duration::from_secs(1));

            source
                .lock()
                .bot
                .ecs
                .write()
                .write_message(AppExit::Success);
        });

        1
    }));
}

pub fn get_biome(&self, pos: BlockPos) -> Option<Biome>

Get the biome at the given position.

You can then use Client::with_resolved_registry to get the name and data from the biome.

Note that biomes are internally stored as 4x4x4 blocks, so if you’re writing code that searches for a specific biome it’ll probably be more efficient to avoid scanning every single block.

pub fn set_block_state( &self, pos: BlockPos, state: BlockState, ) -> Option<BlockState>

Trait Implementations

impl Debug for World

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for World

fn default() -> World

Returns the “default value” for a type.

impl From<ChunkStorage> for World

fn from(chunks: ChunkStorage) -> Self

Make an empty world from this ChunkStorage. This is meant to be a convenience function for tests.