Enderpearl yang bisa genjot genjot

BouncePearl.kt

package me.redepic.checkpearl

import net.milkbowl.vault.permission.Permission
import org.bukkit.Bukkit
import org.bukkit.entity.EnderPearl
import org.bukkit.entity.Player
import org.bukkit.event.EventHandler
import org.bukkit.event.Listener
import org.bukkit.event.entity.ProjectileHitEvent
import org.bukkit.event.entity.ProjectileLaunchEvent
import org.bukkit.plugin.RegisteredServiceProvider
import org.bukkit.plugin.java.JavaPlugin


class BouncePearl : JavaPlugin(), Listener {


    override fun onEnable() {
        Bukkit.getPluginManager().registerEvents(this, this)
        setupPermissions()
    }

    @EventHandler
    fun onPearlThrow(e: ProjectileLaunchEvent) {
        val player = e.entity as Player
        val shooter = e.entity.shooter
        val pearl = e.entity
        if(player.inventory.itemInMainHand.itemMeta.displayName != "bounce pearl")
            return
        if (shooter !is Player)
            return
        perm?.playerAdd(player, "tes")
    }

    @EventHandler
    fun onPearlLand(e: ProjectileHitEvent) {
        val perm = perm
        val player = e.entity as Player
        val shooter = e.entity.shooter
        val projectile = e.entity
        if(!player.hasPermission("tes"))
            return
        if (shooter !is Player || projectile !is EnderPearl)
            return
        if(projectile.doesBounce()) {
            perm?.playerRemove(player, "tes")
            projectile.remove()
        }
        else
            projectile.doesBounce()
    }
    private fun setupPermissions(): Boolean {
        val rsp: RegisteredServiceProvider<Permission> = server.servicesManager.getRegistration(Permission::class.java)
        perm = rsp.provider
        return perm != null
    }
    companion object {
        var perm: Permission? = null
            private set
    }
}