Add SpecialItemCooldown

src/main/java/me/metallicgoat/tweaksaddon/MBedwarsTweaksAddon.java

@@ -83,6 +83,7 @@ public void registerEvents() {
     manager.registerEvents(new PlaceBlocksOnBed(), plugin);
     manager.registerEvents(new PlayerLimitBypass(), plugin);
     manager.registerEvents(new RemoveInvisOnDamage(), plugin);
+    manager.registerEvents(new SpecialItemCooldown(), plugin);
 
     // Spawners
     manager.registerEvents(new AFKSpawners(), plugin);

src/main/java/me/metallicgoat/tweaksaddon/config/MainConfig.java

@@ -350,6 +350,13 @@ public class MainConfig {
   )
   public static boolean allow_block_place_on_bed = false;
 
+  @Config(
+      description = {
+          "Adds a use cooldown to special items (in seconds)"
+      }
+  )
+  public static double special_items_cooldown = 0;
+
   @Config(
       description = {
           "If enabled you still join a server even if the Player Limit is reached"

src/main/java/me/metallicgoat/tweaksaddon/tweaks/misc/SpecialItemCooldown.java

@@ -0,0 +1,38 @@
+package me.metallicgoat.tweaksaddon.tweaks.misc;
+
+import de.marcely.bedwars.api.event.player.PlayerUseSpecialItemEvent;
+import me.metallicgoat.tweaksaddon.MBedwarsTweaksPlugin;
+import me.metallicgoat.tweaksaddon.config.MainConfig;
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.Listener;
+
+import java.util.IdentityHashMap;
+import java.util.Map;
+
+public class SpecialItemCooldown implements Listener {
+
+  private final Map<Player, String> cooldownPlayers = new IdentityHashMap<>();
+
+  @EventHandler (priority = EventPriority.LOW)
+  public void onSpecialItemUse(PlayerUseSpecialItemEvent event) {
+    if (MainConfig.special_items_cooldown == 0)
+      return;
+
+    final String cooldownItemId =  cooldownPlayers.get(event.getPlayer());
+    final String itemId = event.getSpecialItem().getId();
+
+    if (cooldownItemId != null && event.getSpecialItem().getId().equals(cooldownItemId)) {
+      event.setCancelled(true);
+      return;
+    }
+
+    cooldownPlayers.put(event.getPlayer(), itemId);
+
+    Bukkit.getScheduler().runTaskLater(MBedwarsTweaksPlugin.getInstance(), () -> {
+      cooldownPlayers.remove(event.getPlayer());
+    }, (long) (20D * MainConfig.special_items_cooldown));
+  }
+}