Fix elytra rocket

src/main/kotlin/xyz/lncvrt/chaosmclobby/ChaosMCLobbyPlugin.kt

@@ -32,6 +32,7 @@ class ChaosMCLobbyPlugin : JavaPlugin() {
         val pluginManager = server.pluginManager
         pluginManager.registerEvents(InventoryClickListener(), this)
         pluginManager.registerEvents(PlayerAdvancementCriterionGrantListener(), this)
+        pluginManager.registerEvents(PlayerElytraBoostListener(this), this)
         pluginManager.registerEvents(PlayerGameModeChangeListener(), this)
         pluginManager.registerEvents(PlayerInteractListener(this), this)
         pluginManager.registerEvents(PlayerItemDamageListener(), this)
@@ -40,7 +41,6 @@ class ChaosMCLobbyPlugin : JavaPlugin() {
         pluginManager.registerEvents(PlayerMoveListener(this), this)
         pluginManager.registerEvents(PlayerSwapHandItemsListener(), this)
         pluginManager.registerEvents(PlayerToggleFlightListener(), this)
-        pluginManager.registerEvents(ProjectileLaunchListener(), this)
     }
 
     internal fun resetPlayer(player: Player, teleport: Boolean, setGamemode: Boolean) {

src/main/kotlin/xyz/lncvrt/chaosmclobby/event/PlayerElytraBoostListener.kt

@@ -0,0 +1,34 @@
+package xyz.lncvrt.chaosmclobby.event
+
+import com.destroystokyo.paper.event.player.PlayerElytraBoostEvent
+import net.kyori.adventure.text.minimessage.MiniMessage
+import org.bukkit.Material
+import org.bukkit.event.EventHandler
+import org.bukkit.event.Listener
+import org.bukkit.inventory.ItemStack
+import org.sayandev.stickynote.bukkit.plugin
+import xyz.lncvrt.chaosmcapi.utils.MessageFormat
+import xyz.lncvrt.chaosmclobby.ChaosMCLobbyPlugin
+
+class PlayerElytraBoostListener(plugin: ChaosMCLobbyPlugin) : Listener {
+    @EventHandler
+    fun onPlayerElytraBoostEvent(event: PlayerElytraBoostEvent) {
+        plugin.server.scheduler.runTaskLater(plugin, Runnable {
+            val player = event.player
+            val fireworkItem = ItemStack(Material.FIREWORK_ROCKET)
+            val fireworkMeta = fireworkItem.itemMeta
+            fireworkMeta.displayName(
+                MiniMessage.miniMessage().deserialize(
+                    MessageFormat.setPrimaryColor(
+                        "<italic:false>Elytra ${
+                            MessageFormat.setSecondaryColor("(Fly around the lobby!)")
+                        }</italic>"
+                    )
+                )
+            )
+            fireworkItem.setItemMeta(fireworkMeta)
+            player.inventory.setItem(7, fireworkItem)
+            player.setCooldown(fireworkItem.type, 20)
+        }, 1)
+    }
+}

src/main/kotlin/xyz/lncvrt/chaosmclobby/event/ProjectileLaunchListener.kt

@@ -1,29 +0,0 @@
-package xyz.lncvrt.chaosmclobby.event
-
-import net.kyori.adventure.text.minimessage.MiniMessage
-import org.bukkit.Material
-import org.bukkit.entity.Firework
-import org.bukkit.entity.Player
-import org.bukkit.event.EventHandler
-import org.bukkit.event.Listener
-import org.bukkit.event.entity.ProjectileLaunchEvent
-import org.bukkit.inventory.ItemStack
-import xyz.lncvrt.chaosmcapi.utils.MessageFormat
-
-class ProjectileLaunchListener() : Listener {
-    @EventHandler
-    fun onProjectileLaunchEvent(event: ProjectileLaunchEvent) {
-        val firework = event.getEntity()
-        val player = firework.shooter
-        if (firework is Firework) {
-            if (player is Player) {
-                val fireworkItem = ItemStack(Material.FIREWORK_ROCKET)
-                val fireworkMeta = fireworkItem.itemMeta
-                fireworkMeta.displayName(MiniMessage.miniMessage().deserialize(MessageFormat.setPrimaryColor("<italic:false>Elytra ${MessageFormat.setSecondaryColor("(Fly around the lobby!)")}</italic>")))
-                fireworkItem.setItemMeta(fireworkMeta)
-                player.inventory.setItem(7, fireworkItem)
-                player.setCooldown(fireworkItem.type, 20)
-            }
-        }
-    }
-}