fix: respawn packet data

Author: Snowiiii

pumpkin-protocol/src/java/client/play/respawn.rs

@@ -15,6 +15,10 @@ pub struct CRespawn {
 }
 
 impl CRespawn {
+    pub const KEEP_ATTRIBUTE_MODIFIERS: u8 = 1;
+    pub const KEEP_ENTITY_DATA: u8 = 2;
+    pub const KEEP_ALL_DATA: u8 = 3;
+
     #[must_use]
     pub const fn new(player_spawn_info: PlayerSpawnData, data_kept: u8) -> Self {
         Self {

pumpkin/src/entity/player.rs

@@ -2510,14 +2510,14 @@ impl Player {
                         new_world.dimension.clone(),
                         biome::hash_seed(new_world.level.seed.0), // seed
                         self.gamemode.load() as u8,
-                        self.gamemode.load() as i8,
+                        self.previous_gamemode.load().unwrap_or(self.gamemode.load()) as i8,
                         false,
                         false,
                         Some((death_dimension, death_location)),
                         VarInt(self.get_entity().portal_cooldown.load(Ordering::Relaxed) as i32),
                         new_world.sea_level.into(),
                         ),
-                        1,
+                        CRespawn::KEEP_ALL_DATA,
                     )).await;
 
                 self.send_permission_lvl_update();