some minor bug fixing

src/main/kotlin/org/GrapplingHook/grapplingHook/GrapplingHook.kt

@@ -1,6 +1,6 @@
 package org.GrapplingHook.grapplingHook
 
-import org.bukkit.ChatColor
+import org.bukkit.ChatColor // Don't Remove this or it will break shit
 import org.bukkit.Material
 import org.bukkit.NamespacedKey
 import org.bukkit.Particle
@@ -21,7 +21,11 @@ import org.bukkit.event.entity.EntityDamageEvent
 import org.bukkit.scheduler.BukkitRunnable
 import org.bukkit.util.Vector
 import java.util.*
+import kotlin.math.cos
+import kotlin.math.max
+import kotlin.math.sin
 
+@Suppress("DEPRECATION")
 class GrapplingHook : JavaPlugin(), Listener {
     private val grapplingHookKey = NamespacedKey(this, "grappling_hook")
     private val cooldowns = HashMap<UUID, Long>()
@@ -93,7 +97,7 @@ class GrapplingHook : JavaPlugin(), Listener {
                 return true
             }
 
-            val player = sender as Player
+            val player = sender
 
             if (args.isEmpty()) {
                 giveGrapplingHook(player)
@@ -167,7 +171,12 @@ class GrapplingHook : JavaPlugin(), Listener {
 
     @EventHandler
     fun onPlayerJoin(event: PlayerJoinEvent) {
-        // Optional: giveGrapplingHook(event.player)
+        /**********************************************************************
+        * If this is enabled ; at start a player will receive a GrapplingHook *
+        **********************************************************************/
+
+
+        //giveGrapplingHook(event.player)
     }
 
     @EventHandler
@@ -264,7 +273,7 @@ class GrapplingHook : JavaPlugin(), Listener {
         }
 
         direction.normalize().multiply(adjustedPullStrength)
-        direction.y = Math.max(0.4, direction.y)
+        direction.y = max(0.4, direction.y) // If some error starts happening it is this
         player.velocity = direction
 
         if (preventFallDamage) {
@@ -343,8 +352,8 @@ class GrapplingHook : JavaPlugin(), Listener {
                 // Create a circular pattern
                 for (i in 0 until 8) {
                     val angle = i * Math.PI / 4
-                    val x = Math.cos(angle) * 0.7
-                    val z = Math.sin(angle) * 0.7
+                    val x = cos(angle) * 0.7
+                    val z = sin(angle) * 0.7
                     val particleLocation = player.location.clone().add(x, counter * 0.1, z)
 
                     player.world.spawnParticle(Particle.CLOUD, particleLocation, 1, 0.05, 0.05, 0.05, 0.01)