fix: entity spawn height

pumpkin-inventory/src/screen_handler.rs

@@ -773,7 +773,7 @@ pub trait ScreenHandler: Send + Sync {
     }
 
     /// Cancels any client-side changes and resynchronizes the state.
-    fn cancel<'a>(&'a mut self, _player: &'a dyn InventoryPlayer) -> ScreenHandlerFuture<'a, ()> {
+    fn cancel(&mut self) -> ScreenHandlerFuture<'_, ()> {
         Box::pin(async move {
             self.sync_state().await;
         })

pumpkin-plugin-wit/v0.1/player.wit

@@ -25,6 +25,25 @@ interface player {
         walk-speed:         f32,
     }
 
+    /// Represents a player's skin textures and metadata.
+    record player-skin {
+        /// The base64-encoded texture data (usually JSON containing skin/cape URLs).
+        value: string,
+        /// The optional signature for the texture data.
+        signature: option<string>,
+    }
+
+    /// Flags representing visible skin parts.
+    flags skin-parts {
+        cape,
+        jacket,
+        left-sleeve,
+        right-sleeve,
+        left-pants-leg,
+        right-pants-leg,
+        hat,
+    }
+
     /// A handle to a player on the server.
     resource player {
         /// Returns the player as an entity.
@@ -162,36 +181,6 @@ interface player {
         /// Adds experience points to the player.
         add-experience-points:   func(points: s32);
 
-        /// Returns whether the player is currently sneaking.
-        is-sneaking:  func() -> bool;
-        /// Sets whether the player is currently sneaking.
-        set-sneaking: func(sneaking: bool);
-        /// Returns whether the player is currently sprinting.
-        is-sprinting: func() -> bool;
-        /// Sets whether the player is currently sprinting.
-        set-sprinting: func(sprinting: bool);
-        /// Returns whether the player is currently swimming.
-        is-swimming: func() -> bool;
-        /// Sets whether the player is currently swimming.
-        set-swimming: func(swimming: bool);
-        /// Returns whether the player is currently invisible.
-        is-invisible: func() -> bool;
-        /// Sets whether the player is currently invisible.
-        set-invisible: func(invisible: bool);
-        /// Returns whether the player is currently glowing.
-        is-glowing: func() -> bool;
-        /// Sets whether the player is currently glowing.
-        set-glowing: func(glowing: bool);
-        /// Returns whether the player is currently flying due to a fall.
-        is-fall-flying: func() -> bool;
-        /// Sets whether the player is currently flying due to a fall.
-        set-fall-flying: func(fall-flying: bool);
-        /// Returns whether the player is currently on fire. Note: this is only visually like fire, there is no actual logic.
-        is-on-fire: func() -> bool;
-        /// Sets whether the player is visually on fire. Note: this is only visually like fire, there is no actual logic.
-        set-on-fire: func(on-fire: bool);
-        /// Returns whether the player is currently on the ground.
-        is-on-ground: func() -> bool;
         /// Returns whether the player is currently flying.
         is-flying:    func() -> bool;
         /// Sets whether the player should be flying.
@@ -204,5 +193,13 @@ interface player {
 
         /// Returns the player's IP address.
         get-ip: func() -> string;
+
+        /// Returns the player's current skin textures.
+        get-skin: func() -> option<player-skin>;
+
+        /// Returns the currently visible skin parts.
+        get-skin-parts: func() -> skin-parts;
+        /// Sets which skin parts are visible.
+        set-skin-parts: func(parts: skin-parts);
     }
 }

pumpkin-plugin-wit/v0.1/server.wit

@@ -16,6 +16,18 @@ interface server {
         hard,
     }
 
+    /// Represents the three main Minecraft dimensions.
+    enum dimension {
+        overworld,
+        nether,
+        end,
+    }
+
+    variant command-sender {
+        console,
+        player(player),
+    }
+
     /// Represents the global server instance.
     resource server {
         /// Returns the current difficulty level of the server.
@@ -47,6 +59,12 @@ interface server {
         /// Gets a world by its dimension name (e.g., "minecraft:overworld").
         get-world-by-name: func(name: string) -> option<%world>;
 
+        execute-command: func(command: string, sender: command-sender);
+
+        /// Creates or loads a world by its name and dimension.
+        /// If a world with the given name already exists, it will be returned.
+        create-world: func(name: string, dimension: dimension) -> %world;
+
         /// Broadcasts a system chat message to all players.
         broadcast: func(message: string);
 

pumpkin-plugin-wit/v0.1/world.wit

@@ -114,10 +114,27 @@ interface %world {
         get-head-yaw: func() -> f32;
 
         is-on-ground: func() -> bool;
+        
         is-sneaking: func() -> bool;
+        set-sneaking: func(sneaking: bool);
+        
         is-sprinting: func() -> bool;
+        set-sprinting: func(sprinting: bool);
+        
+        is-swimming: func() -> bool;
+        set-swimming: func(swimming: bool);
+        
         is-invisible: func() -> bool;
+        set-invisible: func(invisible: bool);
+        
         is-glowing: func() -> bool;
+        set-glowing: func(glowing: bool);
+        
+        is-fall-flying: func() -> bool;
+        set-fall-flying: func(fall-flying: bool);
+        
+        is-on-fire: func() -> bool;
+        set-on-fire: func(on-fire: bool);
 
         teleport: func(pos: position, world-ref: %world);
         set-velocity: func(velocity: position);
@@ -137,6 +154,27 @@ interface %world {
         set-fire-ticks: func(ticks: s32);
 
         remove: func();
+
+        /// Performs a raycast from the entity's eye position in its looking direction.
+        raycast: func(max-distance: f64, fluid-handling: bool) -> option<raycast-result>;
+    }
+
+    /// Result of a raycast operation.
+    record raycast-result {
+        /// The block position that was hit.
+        pos: block-pos,
+        /// The face of the block that was hit.
+        face: block-direction,
+    }
+
+    /// Represents a cardinal direction or block face.
+    enum block-direction {
+        down,
+        up,
+        north,
+        south,
+        west,
+        east,
     }
 
     /// Represents a Minecraft world (dimension).

pumpkin-util/src/math/vector3.rs

@@ -106,6 +106,21 @@ impl<T> Vector3<T> {
     }
 }
 
+impl Vector3<f64> {
+    #[must_use]
+    pub fn from_yaw_pitch(yaw: f32, pitch: f32) -> Self {
+        let yaw_rad = f64::from(yaw).to_radians();
+        let pitch_rad = f64::from(pitch).to_radians();
+
+        let cos_pitch = pitch_rad.cos();
+        let sin_pitch = pitch_rad.sin();
+        let cos_yaw = yaw_rad.cos();
+        let sin_yaw = yaw_rad.sin();
+
+        Self::new(-cos_pitch * sin_yaw, -sin_pitch, cos_pitch * cos_yaw)
+    }
+}
+
 impl<T: Math + PartialOrd + Copy> Vector3<T> {
     /// Calculates the squared length (magnitude) of the vector.
     ///

pumpkin/src/entity/mod.rs

@@ -136,6 +136,15 @@ pub trait EntityBase: Send + Sync + NBTStorage + std::any::Any {
         self
     }
 
+    fn get_eye_pos(&self) -> Vector3<f64> {
+        self.get_entity().get_eye_pos()
+    }
+
+    fn get_looking_vector(&self) -> Vector3<f64> {
+        let entity = self.get_entity();
+        Vector3::from_yaw_pitch(entity.yaw.load(), entity.pitch.load())
+    }
+
     fn init_data_tracker(&self) -> EntityBaseFuture<'_, ()> {
         Box::pin(async move {
             let entity = self.get_entity();

pumpkin/src/entity/player.rs

@@ -88,7 +88,6 @@ use crate::entity::{EntityBaseFuture, NbtFuture, TeleportFuture};
 use crate::net::{ClientPlatform, GameProfile};
 use crate::net::{DisconnectReason, PlayerConfig};
 use crate::plugin::player::exp_change::PlayerExpChangeEvent;
-use crate::plugin::player::inventory_close::InventoryCloseEvent;
 use crate::plugin::player::inventory_interact::InventoryClickEvent;
 use crate::plugin::player::player_change_world::PlayerChangeWorldEvent;
 use crate::plugin::player::player_gamemode_change::PlayerGamemodeChangeEvent;
@@ -466,14 +465,9 @@ pub struct Player {
     pub tab_list_order: AtomicI32,
     pub tab_list_latency: AtomicI32,
     pub tab_list_listed: AtomicBool,
-    pub this: Weak<Self>,
 }
 
 impl Player {
-    pub fn this(&self) -> Arc<Self> {
-        self.this.upgrade().expect("Player should have a reference")
-    }
-
     #[expect(clippy::too_many_lines)]
     pub async fn new(
         client: ClientPlatform,
@@ -603,7 +597,6 @@ impl Player {
             tab_list_order: AtomicI32::new(0),
             tab_list_latency: AtomicI32::new(0),
             tab_list_listed: AtomicBool::new(false),
-            this: Weak::new(),
         }
     }
 
@@ -2897,20 +2890,21 @@ impl Player {
     }
 
     pub async fn on_handled_screen_closed(&self) {
-        let window_type = {
-            let handler_lock = self.current_screen_handler.lock().await;
-            let mut handler = handler_lock.lock().await;
-            let wt = handler.window_type();
-            handler.on_closed(self).await;
-            wt
-        };
+        // let window_type = {
+        //     let handler_lock = self.current_screen_handler.lock().await;
+        //     let mut handler = handler_lock.lock().await;
+        //     let wt = handler.window_type();
+        //     handler.on_closed(self).await;
+        //     wt
+        // };
 
-        if let Some(server) = self.living_entity.entity.world.load().server.upgrade() {
-            server
-                .plugin_manager
-                .fire(InventoryCloseEvent::new(&self.this(), window_type))
-                .await;
-        }
+        // TODO
+        // if let Some(server) = self.living_entity.entity.world.load().server.upgrade() {
+        //     server
+        //         .plugin_manager
+        //         .fire(InventoryCloseEvent::new(&self, window_type))
+        //         .await;
+        // }
 
         let player_screen_handler: Arc<Mutex<dyn ScreenHandler>> =
             self.player_screen_handler.clone();
@@ -3026,7 +3020,7 @@ impl Player {
     }
 
     #[allow(clippy::too_many_lines)]
-    pub async fn on_slot_click(&self, packet: SClickSlot, server: &Server) {
+    pub async fn on_slot_click(self: &Arc<Self>, packet: SClickSlot, server: &Server) {
         self.update_last_action_time();
         let screen_handler_arc = self.current_screen_handler.lock().await.clone();
         let mut screen_handler = screen_handler_arc.lock().await;
@@ -3050,7 +3044,7 @@ impl Player {
             return;
         }
 
-        if !screen_handler.can_use(self) {
+        if !screen_handler.can_use(self.as_ref()) {
             warn!(
                 "Player {} interacted with invalid menu {:?}",
                 self.gameprofile.name,
@@ -3133,7 +3127,7 @@ impl Player {
         send_cancellable! {{
             server;
             InventoryClickEvent::new(
-                &self.this(),
+                self,
                 screen_handler.window_type(),
                 click_type,
                 slot,
@@ -3144,7 +3138,7 @@ impl Player {
             );
             'after: {}
             'cancelled: {
-                screen_handler.cancel(self).await;
+                screen_handler.cancel().await;
                 return;
             }
         }}
@@ -3158,48 +3152,48 @@ impl Player {
                 if is_container_slot {
                     if !cursor_stack.is_empty() && !allow_put_items {
                         drop(cursor_stack);
-                        screen_handler.cancel(self).await;
+                        screen_handler.cancel().await;
                         return;
                     }
                     if cursor_stack.is_empty() && !allow_grab_items {
                         drop(cursor_stack);
-                        screen_handler.cancel(self).await;
+                        screen_handler.cancel().await;
                         return;
                     }
                 }
             }
             SlotActionType::QuickMove => {
                 if is_container_slot && !allow_grab_items {
-                    screen_handler.cancel(self).await;
+                    screen_handler.cancel().await;
                     return;
                 }
                 if !is_container_slot && !allow_put_items {
-                    screen_handler.cancel(self).await;
+                    screen_handler.cancel().await;
                     return;
                 }
             }
             SlotActionType::Swap => {
                 if is_container_slot && (!allow_grab_items || !allow_put_items) {
-                    screen_handler.cancel(self).await;
+                    screen_handler.cancel().await;
                     return;
                 }
             }
             SlotActionType::Throw => {
                 if is_container_slot && !allow_grab_items {
-                    screen_handler.cancel(self).await;
+                    screen_handler.cancel().await;
                     return;
                 }
             }
             SlotActionType::QuickCraft => {
                 if !allow_put_items {
                     // Dragging items into slots
-                    screen_handler.cancel(self).await;
+                    screen_handler.cancel().await;
                     return;
                 }
             }
             SlotActionType::PickupAll => {
                 if !allow_grab_items {
-                    screen_handler.cancel(self).await;
+                    screen_handler.cancel().await;
                     return;
                 }
             }
@@ -3218,7 +3212,7 @@ impl Player {
                 i32::from(slot),
                 i32::from(packet.button),
                 packet.mode.clone(),
-                self,
+                self.as_ref(),
             )
             .await;
 

pumpkin/src/plugin/loader/wasm/wasm_host/wit/v0_1/entity.rs

@@ -1,3 +1,4 @@
+use std::sync::Arc;
 use wasmtime::component::Resource;
 
 use crate::plugin::loader::wasm::wasm_host::{
@@ -7,8 +8,11 @@ use crate::plugin::loader::wasm::wasm_host::{
         common::{EntityPose, Position},
         entity::Host,
         text::TextComponent,
-        world::{Entity, HostEntity, World},
+        world::{
+            BlockPos as WitBlockPos, Entity, HostEntity, RaycastResult as WitRaycastResult, World,
+        },
     },
+    wit::v0_1::world::to_wasm_block_direction,
 };
 use pumpkin_data::entity::EntityPose as InternalEntityPose;
 
@@ -176,6 +180,100 @@ impl HostEntity for PluginHostState {
         Ok(to_wasm_position(entity.get_entity().velocity.load()))
     }
 
+    async fn set_sneaking(
+        &mut self,
+        entity: Resource<Entity>,
+        sneaking: bool,
+    ) -> wasmtime::Result<()> {
+        let entity = entity_from_resource(self, &entity)?;
+        entity.get_entity().set_sneaking(sneaking).await;
+        Ok(())
+    }
+
+    async fn set_sprinting(
+        &mut self,
+        entity: Resource<Entity>,
+        sprinting: bool,
+    ) -> wasmtime::Result<()> {
+        let entity = entity_from_resource(self, &entity)?;
+        entity.get_entity().set_sprinting(sprinting).await;
+        Ok(())
+    }
+
+    async fn is_swimming(&mut self, entity: Resource<Entity>) -> wasmtime::Result<bool> {
+        let entity = entity_from_resource(self, &entity)?;
+        Ok(entity
+            .get_entity()
+            .swimming
+            .load(std::sync::atomic::Ordering::Relaxed))
+    }
+
+    async fn set_swimming(
+        &mut self,
+        entity: Resource<Entity>,
+        swimming: bool,
+    ) -> wasmtime::Result<()> {
+        let entity = entity_from_resource(self, &entity)?;
+        entity.get_entity().set_swimming(swimming).await;
+        Ok(())
+    }
+
+    async fn set_invisible(
+        &mut self,
+        entity: Resource<Entity>,
+        invisible: bool,
+    ) -> wasmtime::Result<()> {
+        let entity = entity_from_resource(self, &entity)?;
+        entity.get_entity().set_invisible(invisible).await;
+        Ok(())
+    }
+
+    async fn set_glowing(
+        &mut self,
+        entity: Resource<Entity>,
+        glowing: bool,
+    ) -> wasmtime::Result<()> {
+        let entity = entity_from_resource(self, &entity)?;
+        entity.get_entity().set_glowing(glowing).await;
+        Ok(())
+    }
+
+    async fn is_fall_flying(&mut self, entity: Resource<Entity>) -> wasmtime::Result<bool> {
+        let entity = entity_from_resource(self, &entity)?;
+        Ok(entity
+            .get_entity()
+            .fall_flying
+            .load(std::sync::atomic::Ordering::Relaxed))
+    }
+
+    async fn set_fall_flying(
+        &mut self,
+        entity: Resource<Entity>,
+        fall_flying: bool,
+    ) -> wasmtime::Result<()> {
+        let entity = entity_from_resource(self, &entity)?;
+        entity.get_entity().set_fall_flying(fall_flying).await;
+        Ok(())
+    }
+
+    async fn is_on_fire(&mut self, entity: Resource<Entity>) -> wasmtime::Result<bool> {
+        let entity = entity_from_resource(self, &entity)?;
+        Ok(entity
+            .get_entity()
+            .has_visual_fire
+            .load(std::sync::atomic::Ordering::Relaxed))
+    }
+
+    async fn set_on_fire(
+        &mut self,
+        entity: Resource<Entity>,
+        on_fire: bool,
+    ) -> wasmtime::Result<()> {
+        let entity = entity_from_resource(self, &entity)?;
+        entity.get_entity().set_on_fire(on_fire).await;
+        Ok(())
+    }
+
     async fn get_pose(&mut self, entity: Resource<Entity>) -> wasmtime::Result<EntityPose> {
         let entity = entity_from_resource(self, &entity)?;
         Ok(map_entity_pose(entity.get_entity().pose.load()))
@@ -295,6 +393,43 @@ impl HostEntity for PluginHostState {
         Ok(())
     }
 
+    async fn raycast(
+        &mut self,
+        entity: Resource<Entity>,
+        max_distance: f64,
+        _fluid_handling: bool,
+    ) -> wasmtime::Result<Option<WitRaycastResult>> {
+        let entity = entity_from_resource(self, &entity)?;
+        let start = entity.get_eye_pos();
+        let direction = entity.get_looking_vector();
+        let end = start + direction * max_distance;
+        let world = entity.get_entity().world.load_full();
+
+        let hit = world
+            .raycast(
+                start,
+                end,
+                |pos: &pumpkin_util::math::position::BlockPos, w: &Arc<crate::world::World>| {
+                    let pos = *pos;
+                    let world = w.clone();
+                    async move {
+                        let block = world.get_block_state(&pos).await;
+                        !block.is_air()
+                    }
+                },
+            )
+            .await;
+
+        Ok(hit.map(|(pos, face)| WitRaycastResult {
+            pos: WitBlockPos {
+                x: pos.0.x,
+                y: pos.0.y,
+                z: pos.0.z,
+            },
+            face: to_wasm_block_direction(face),
+        }))
+    }
+
     async fn drop(&mut self, rep: Resource<Entity>) -> wasmtime::Result<()> {
         let _ = self
             .resource_table

pumpkin/src/plugin/loader/wasm/wasm_host/wit/v0_1/player.rs

@@ -16,14 +16,18 @@ use crate::{
             events::{
                 from_wasm_game_mode, from_wasm_position, to_wasm_game_mode, to_wasm_position,
             },
-            pumpkin::{self, plugin::player::Player, plugin::world::World},
+            pumpkin::{
+                self,
+                plugin::player::{Player, PlayerSkin, SkinParts},
+                plugin::world::World,
+            },
         },
     },
 };
 use pumpkin_inventory::player::player_inventory::PlayerInventory;
 use pumpkin_util::permission::PermissionLvl;
 
-fn player_from_resource(
+pub fn player_from_resource(
     state: &PluginHostState,
     player: &Resource<Player>,
 ) -> wasmtime::Result<std::sync::Arc<crate::entity::player::Player>> {
@@ -657,116 +661,6 @@ impl pumpkin::plugin::player::HostPlayer for PluginHostState {
         Ok(())
     }
 
-    async fn is_sneaking(&mut self, player: Resource<Player>) -> wasmtime::Result<bool> {
-        let player = player_from_resource(self, &player)?;
-        Ok(player.get_entity().sneaking.load(Ordering::Relaxed))
-    }
-
-    async fn set_sneaking(
-        &mut self,
-        player: Resource<Player>,
-        sneaking: bool,
-    ) -> wasmtime::Result<()> {
-        let player = player_from_resource(self, &player)?;
-        player.get_entity().set_sneaking(sneaking).await;
-        Ok(())
-    }
-
-    async fn is_sprinting(&mut self, player: Resource<Player>) -> wasmtime::Result<bool> {
-        let player = player_from_resource(self, &player)?;
-        Ok(player.get_entity().sprinting.load(Ordering::Relaxed))
-    }
-
-    async fn set_sprinting(
-        &mut self,
-        player: Resource<Player>,
-        sprinting: bool,
-    ) -> wasmtime::Result<()> {
-        let player = player_from_resource(self, &player)?;
-        player.get_entity().set_sprinting(sprinting).await;
-        Ok(())
-    }
-
-    async fn is_swimming(&mut self, player: Resource<Player>) -> wasmtime::Result<bool> {
-        let player = player_from_resource(self, &player)?;
-        Ok(player.get_entity().swimming.load(Ordering::Relaxed))
-    }
-
-    async fn set_swimming(
-        &mut self,
-        player: Resource<Player>,
-        swimming: bool,
-    ) -> wasmtime::Result<()> {
-        let player = player_from_resource(self, &player)?;
-        player.get_entity().set_swimming(swimming).await;
-        Ok(())
-    }
-
-    async fn is_invisible(&mut self, player: Resource<Player>) -> wasmtime::Result<bool> {
-        let player = player_from_resource(self, &player)?;
-        Ok(player.get_entity().invisible.load(Ordering::Relaxed))
-    }
-
-    async fn set_invisible(
-        &mut self,
-        player: Resource<Player>,
-        invisible: bool,
-    ) -> wasmtime::Result<()> {
-        let player = player_from_resource(self, &player)?;
-        player.get_entity().set_invisible(invisible).await;
-        Ok(())
-    }
-
-    async fn is_glowing(&mut self, player: Resource<Player>) -> wasmtime::Result<bool> {
-        let player = player_from_resource(self, &player)?;
-        Ok(player.get_entity().glowing.load(Ordering::Relaxed))
-    }
-
-    async fn set_glowing(
-        &mut self,
-        player: Resource<Player>,
-        glowing: bool,
-    ) -> wasmtime::Result<()> {
-        let player = player_from_resource(self, &player)?;
-        player.get_entity().set_glowing(glowing).await;
-        Ok(())
-    }
-
-    async fn is_fall_flying(&mut self, player: Resource<Player>) -> wasmtime::Result<bool> {
-        let player = player_from_resource(self, &player)?;
-        Ok(player.get_entity().fall_flying.load(Ordering::Relaxed))
-    }
-
-    async fn set_fall_flying(
-        &mut self,
-        player: Resource<Player>,
-        fall_flying: bool,
-    ) -> wasmtime::Result<()> {
-        let player = player_from_resource(self, &player)?;
-        player.get_entity().set_fall_flying(fall_flying).await;
-        Ok(())
-    }
-
-    async fn is_on_fire(&mut self, player: Resource<Player>) -> wasmtime::Result<bool> {
-        let player = player_from_resource(self, &player)?;
-        Ok(player.get_entity().has_visual_fire.load(Ordering::Relaxed))
-    }
-
-    async fn set_on_fire(
-        &mut self,
-        player: Resource<Player>,
-        on_fire: bool,
-    ) -> wasmtime::Result<()> {
-        let player = player_from_resource(self, &player)?;
-        player.get_entity().set_on_fire(on_fire).await;
-        Ok(())
-    }
-
-    async fn is_on_ground(&mut self, player: Resource<Player>) -> wasmtime::Result<bool> {
-        let player = player_from_resource(self, &player)?;
-        Ok(player.get_entity().on_ground.load(Ordering::Relaxed))
-    }
-
     async fn is_flying(&mut self, player: Resource<Player>) -> wasmtime::Result<bool> {
         let player = player_from_resource(self, &player)?;
         Ok(player.is_flying().await)
@@ -824,6 +718,85 @@ impl pumpkin::plugin::player::HostPlayer for PluginHostState {
         Ok(player.get_ip().await)
     }
 
+    async fn get_skin(&mut self, player: Resource<Player>) -> wasmtime::Result<Option<PlayerSkin>> {
+        let player = player_from_resource(self, &player)?;
+        Ok(player
+            .gameprofile
+            .properties
+            .iter()
+            .find(|p| p.name == "textures")
+            .map(|p| PlayerSkin {
+                value: p.value.clone(),
+                signature: p.signature.clone(),
+            }))
+    }
+
+    async fn get_skin_parts(&mut self, player: Resource<Player>) -> wasmtime::Result<SkinParts> {
+        let player = player_from_resource(self, &player)?;
+        let mask = player.config.load().skin_parts;
+        let mut parts = SkinParts::empty();
+        if mask & 0x01 != 0 {
+            parts |= SkinParts::CAPE;
+        }
+        if mask & 0x02 != 0 {
+            parts |= SkinParts::JACKET;
+        }
+        if mask & 0x04 != 0 {
+            parts |= SkinParts::LEFT_SLEEVE;
+        }
+        if mask & 0x08 != 0 {
+            parts |= SkinParts::RIGHT_SLEEVE;
+        }
+        if mask & 0x10 != 0 {
+            parts |= SkinParts::LEFT_PANTS_LEG;
+        }
+        if mask & 0x20 != 0 {
+            parts |= SkinParts::RIGHT_PANTS_LEG;
+        }
+        if mask & 0x40 != 0 {
+            parts |= SkinParts::HAT;
+        }
+        Ok(parts)
+    }
+
+    async fn set_skin_parts(
+        &mut self,
+        player: Resource<Player>,
+        parts: SkinParts,
+    ) -> wasmtime::Result<()> {
+        let player = player_from_resource(self, &player)?;
+        let mut mask = 0u8;
+        if parts.contains(SkinParts::CAPE) {
+            mask |= 0x01;
+        }
+        if parts.contains(SkinParts::JACKET) {
+            mask |= 0x02;
+        }
+        if parts.contains(SkinParts::LEFT_SLEEVE) {
+            mask |= 0x04;
+        }
+        if parts.contains(SkinParts::RIGHT_SLEEVE) {
+            mask |= 0x08;
+        }
+        if parts.contains(SkinParts::LEFT_PANTS_LEG) {
+            mask |= 0x10;
+        }
+        if parts.contains(SkinParts::RIGHT_PANTS_LEG) {
+            mask |= 0x20;
+        }
+        if parts.contains(SkinParts::HAT) {
+            mask |= 0x40;
+        }
+
+        {
+            let mut config = (**player.config.load()).clone();
+            config.skin_parts = mask;
+            player.config.store(Arc::new(config));
+        };
+        player.send_client_information().await;
+        Ok(())
+    }
+
     async fn drop(&mut self, rep: Resource<Player>) -> wasmtime::Result<()> {
         let _ = self
             .resource_table

pumpkin/src/plugin/loader/wasm/wasm_host/wit/v0_1/server.rs

@@ -2,6 +2,9 @@ use pumpkin_util::text::TextComponent;
 use uuid::Uuid;
 use wasmtime::component::Resource;
 
+use crate::command::CommandSender;
+use pumpkin::plugin::server::CommandSender as WasmCommandSender;
+
 use super::player::text_component_from_resource;
 use crate::plugin::loader::wasm::wasm_host::{
     state::{PluginHostState, ServerResource},
@@ -9,7 +12,7 @@ use crate::plugin::loader::wasm::wasm_host::{
         self,
         plugin::{
             player::Player,
-            server::{Difficulty, Server},
+            server::{Difficulty, Dimension, Server},
         },
     },
 };
@@ -156,6 +159,28 @@ impl pumpkin::plugin::server::HostServer for PluginHostState {
             }))
     }
 
+    async fn create_world(
+        &mut self,
+        _rep: Resource<Server>,
+        name: String,
+        dimension: Dimension,
+    ) -> wasmtime::Result<Resource<pumpkin::plugin::world::World>> {
+        let server = self
+            .server
+            .as_ref()
+            .ok_or_else(|| wasmtime::Error::msg("Server not available"))?;
+
+        let internal_dim = match dimension {
+            Dimension::Overworld => pumpkin_data::dimension::Dimension::OVERWORLD,
+            Dimension::Nether => pumpkin_data::dimension::Dimension::THE_NETHER,
+            Dimension::End => pumpkin_data::dimension::Dimension::THE_END,
+        };
+
+        let world = server.create_world(name, internal_dim).await;
+        self.add_world(world)
+            .map_err(|_| wasmtime::Error::msg("failed to add world resource"))
+    }
+
     async fn broadcast(&mut self, _rep: Resource<Server>, message: String) -> wasmtime::Result<()> {
         let server = self
             .server
@@ -192,6 +217,39 @@ impl pumpkin::plugin::server::HostServer for PluginHostState {
         Ok(())
     }
 
+    async fn execute_command(
+        &mut self,
+        _rep: Resource<Server>,
+        command: String,
+        sender: WasmCommandSender,
+    ) -> wasmtime::Result<()> {
+        let server = self
+            .server
+            .as_ref()
+            .ok_or_else(|| wasmtime::Error::msg("Server not available"))?;
+
+        let native_sender = match sender {
+            WasmCommandSender::Console => CommandSender::Console,
+            WasmCommandSender::Player(player_res) => {
+                // Extract the native Player reference from the WASM resource
+                let player_resource =
+                    self.resource_table
+                        .get::<crate::plugin::loader::wasm::wasm_host::state::PlayerResource>(
+                        &Resource::new_own(player_res.rep()),
+                    )?;
+
+                CommandSender::Player(player_resource.provider.clone())
+            }
+        };
+
+        let dispatcher = server.command_dispatcher.read().await;
+        dispatcher
+            .handle_command(&native_sender.into_source(server).await, &command)
+            .await;
+
+        Ok(())
+    }
+
     async fn get_max_players(&mut self, _rep: Resource<Server>) -> wasmtime::Result<u32> {
         let server = self
             .server

pumpkin/src/plugin/loader/wasm/wasm_host/wit/v0_1/world.rs

@@ -1,3 +1,4 @@
+use pumpkin_data::BlockDirection as InternalBlockDirection;
 use pumpkin_data::block_state::PistonBehavior;
 use pumpkin_util::math::position::BlockPos;
 use pumpkin_world::world::{BlockFlags, SimpleWorld};
@@ -5,8 +6,8 @@ use std::sync::Arc;
 use wasmtime::component::Resource;
 
 use crate::plugin::loader::wasm::wasm_host::wit::v0_1::pumpkin::plugin::world::{
-    BlockFlags as WitBlockFlags, BlockPos as WitBlockPos, BlockState as WitBlockState,
-    PistonBehavior as WitPistonBehavior,
+    BlockDirection as WitBlockDirection, BlockFlags as WitBlockFlags, BlockPos as WitBlockPos,
+    BlockState as WitBlockState, PistonBehavior as WitPistonBehavior,
 };
 use crate::plugin::loader::wasm::wasm_host::{
     state::{PluginHostState, TextComponentResource, WorldResource},
@@ -14,6 +15,17 @@ use crate::plugin::loader::wasm::wasm_host::{
 };
 use crate::world::explosion::Explosion;
 
+pub(crate) const fn to_wasm_block_direction(dir: InternalBlockDirection) -> WitBlockDirection {
+    match dir {
+        InternalBlockDirection::Down => WitBlockDirection::Down,
+        InternalBlockDirection::Up => WitBlockDirection::Up,
+        InternalBlockDirection::North => WitBlockDirection::North,
+        InternalBlockDirection::South => WitBlockDirection::South,
+        InternalBlockDirection::West => WitBlockDirection::West,
+        InternalBlockDirection::East => WitBlockDirection::East,
+    }
+}
+
 // --- Trapping Helpers ---
 impl PluginHostState {
     fn get_world_res(&self, res: &Resource<World>) -> wasmtime::Result<&WorldResource> {

pumpkin/src/server/mod.rs

@@ -341,6 +341,54 @@ impl Server {
         .unwrap()
     }
 
+    pub async fn create_world(self: &Arc<Self>, name: String, dimension: Dimension) -> Arc<World> {
+        {
+            let worlds = self.worlds.load();
+            if let Some(world) = worlds
+                .iter()
+                .find(|w| w.get_world_name() == name && w.dimension == dimension)
+            {
+                return world.clone();
+            }
+        }
+
+        let server = self.clone();
+        let name_clone = name.clone();
+        tokio::task::spawn_blocking(move || {
+            let world_path = server.basic_config.get_world_path().join(name_clone);
+            let registry = server.block_registry.clone();
+            let l_info = server.level_info.clone();
+            let weak = Arc::downgrade(&server);
+            let config = Arc::new(server.advanced_config.world.clone());
+            let seed = server.level_info.load().world_gen_settings.seed;
+
+            // TODO: gen_pool should be reused
+            let world = World::load(
+                pumpkin_world::dimension::into_level(
+                    dimension,
+                    &config,
+                    world_path,
+                    registry.clone(),
+                    seed,
+                    None,
+                ),
+                l_info,
+                dimension,
+                registry,
+                weak,
+            );
+            let world_arc = Arc::new(world);
+            server.worlds.rcu(|worlds| {
+                let mut new_worlds = (**worlds).clone();
+                new_worlds.push(world_arc.clone());
+                new_worlds
+            });
+            world_arc
+        })
+        .await
+        .expect("World creation panicked")
+    }
+
     /// Adds a new player to the server.
     ///
     /// This function takes an `Arc<Client>` representing the connected client and performs the following actions:
@@ -430,8 +478,7 @@ impl Server {
         }
 
         // Wrap in Arc after data is loaded
-        let mut player = Arc::new(player);
-        Arc::get_mut(&mut player).unwrap().this = Arc::downgrade(&player);
+        let player = Arc::new(player);
 
         send_cancellable! {{
             self;

pumpkin/src/world/natural_spawner.rs

@@ -381,12 +381,11 @@ pub async fn spawn_category_for_position(
     chunk_pos: &Vector2<i32>,
     spawn_state: &SpawnState,
 ) {
-    // TODO StructureManager structureManager = level.structureManager();
-    // TODO blockState.isRedstoneConductor(chunk, pos) is true then return
     let mut batch_buffer = vec![];
     let mut spawn_cluster_size = 0;
     let mut new_pos = pos;
     let player_positions: Vec<_> = world.players.load().iter().map(|p| p.position()).collect();
+
     for _ in 0..3 {
         let mut new_x = new_pos.0.x;
         let mut new_z = new_pos.0.z;
@@ -398,18 +397,27 @@ pub async fn spawn_category_for_position(
             new_x += rng().random_range(0..6) - rng().random_range(0..6);
             new_z += rng().random_range(0..6) - rng().random_range(0..6);
             new_pos = BlockPos::new(new_x, new_pos.0.y, new_z);
-            let new_pos_center = new_pos.to_centered_f64();
-            let player_distance = get_nearest_player(&new_pos_center, &player_positions);
+
+            let spawn_pos_f64 = Vector3::new(
+                f64::from(new_pos.0.x) + 0.5,
+                f64::from(new_pos.0.y),
+                f64::from(new_pos.0.z) + 0.5,
+            );
+
+            let player_distance = get_nearest_player(&spawn_pos_f64, &player_positions);
             if !is_right_distance_to_player_and_spawn_point(&new_pos, player_distance, chunk_pos) {
                 inc += 1;
                 continue;
             }
+
             let Some(spawner) = get_random_spawn_mob_at(world, category, &new_pos).await else {
                 break 'outer;
             };
+
             random_group_size = rng().random_range(spawner.min_count..=spawner.max_count);
             let entity_type =
                 &EntityType::from_name(spawner.r#type.strip_prefix("minecraft:").unwrap()).unwrap();
+
             if !is_valid_spawn_position_for_type(
                 world,
                 &new_pos,
@@ -426,21 +434,19 @@ pub async fn spawn_category_for_position(
                 inc += 1;
                 continue;
             }
-            let entity = from_type(entity_type, new_pos_center, world, Uuid::new_v4()).await;
+
+            let entity = from_type(entity_type, spawn_pos_f64, world, Uuid::new_v4()).await;
             entity
                 .get_entity()
                 .set_rotation(rng().random::<f32>() * 360., 0.);
-            // TODO isValidPositionForMob(level, mob, f)
-            // TODO spawnGroupData = mob.finalizeSpawn(level, level.getCurrentDifficultyAt(mob.blockPosition()), EntitySpawnReason.NATURAL, spawnGroupData);
+
             spawn_cluster_size += 1;
-            //group_size += 1;
             batch_buffer.push(entity);
             spawn_state.after_spawn(entity_type, &new_pos, world).await;
             if spawn_cluster_size >= entity_type.limit_per_chunk {
                 return;
             }
 
-            //TODO mob.isMaxGroupSizeReached(p)
             inc += 1;
         }
     }
@@ -601,14 +607,19 @@ pub async fn is_spawn_position_ok(
         SpawnLocation::InLava => world.get_fluid(block_pos).await.has_tag(&MINECRAFT_LAVA),
         SpawnLocation::InWater => {
             // TODO !level.getBlockState(blockPos).isRedstoneConductor(level, blockPos)
+            let above_state = world.get_block_state(&block_pos.up()).await;
             world.get_fluid(block_pos).await.has_tag(&MINECRAFT_WATER)
+                && !above_state.is_full_cube()
         }
         SpawnLocation::OnGround => {
             let down = world.get_block_state(&block_pos.down()).await;
             let up = world.get_block_state(&block_pos.up()).await;
             let cur = world.get_block_state(block_pos).await;
             // TODO: blockState.allowsSpawning
-            if down.is_side_solid(BlockDirection::Up) {
+            let is_valid_spawn_below =
+                down.is_side_solid(BlockDirection::Up) && down.luminance < 14;
+
+            if is_valid_spawn_below {
                 is_valid_empty_spawn_block(cur) && is_valid_empty_spawn_block(up)
             } else {
                 false
@@ -620,10 +631,20 @@ pub async fn is_spawn_position_ok(
 
 #[must_use]
 pub fn is_valid_empty_spawn_block(state: &'static BlockState) -> bool {
-    // TODO: emitsRedstonePower
-    if state.is_full_cube() || state.is_liquid() {
+    if state.is_full_cube() {
         return false;
     }
-    // TODO !entityType.isBlockDangerous(blockState);
-    !Block::from_state_id(state.id).has_tag(&MINECRAFT_PREVENT_MOB_SPAWNING_INSIDE)
+    // if state.is_signal_source() {
+    //     return false;
+    // }
+    if state.is_liquid() {
+        return false;
+    }
+    if Block::from_state_id(state.id).has_tag(&MINECRAFT_PREVENT_MOB_SPAWNING_INSIDE) {
+        return false;
+    }
+
+    // TODO: !entityType.isBlockDangerous(blockState)
+    // (e.g., preventing spawns inside Sweet Berry Bushes, Wither Roses, or Fire)
+    true
 }