Check for a wool block on players head

Hello everybody,

I want to check if a player has a specific wool block on his head while he stepped on a pressure plate.

But I don't know how?
I tried the following, but it throws me every time a player moves an error because CraftItemStack cannot cast to block:

Code:java

if(CTF.status.getStatus() == 2 && CTF.ctfplayers.contains(p))
        {
            World w = p.getWorld();
            Location loc = p.getLocation();
            Location d = new Location(loc.getWorld(), loc.getX(), loc.getY(), loc.getZ());
            Block b = w.getBlockAt(d);
            Block flag = (Block) p.getInventory().getHelmet();
 
            p.sendMessage("1");
            if(b.getType() == Material.STONE_PLATE)
            {
                p.sendMessage("2");
                if(flag.getData() == 14)
                {
                    p.sendMessage("3");
                    String world = fileConfigLocations.getString("LobbySpawn.world");
                    double x = fileConfigLocations.getDouble("LobbySpawn.x");
                    double y = fileConfigLocations.getDouble("LobbySpawn.y");
                    double z = fileConfigLocations.getDouble("LobbySpawn.z");
                    Location redFlag = new Location(Bukkit.getWorld(world), x, y, z);
                    w.strikeLightningEffect(((Block) redFlag).getLocation());
 
                    CTF.gameScoreRed ++;   
                    for(Player p1 : CTF.ctfplayers)
                    {
                        p.sendMessage("4");
                        p1.setHealth(20.0D);
                        p1.setFoodLevel(20);
                        p1.setFireTicks(0);
                        p1.setFlying(false);
                    }
                    CTF_Scoreboard.setScoreboard();   
                    CTF_Teleporter.teleport();
                }

Any ideas how to check for a specific wool block on players head without errors?

Thanks!

 

I don't know what you're trying to do. But if you've not already, use a PlayerInteractEvent with a type physical. Then check if :

Code:java

p.getItemInHand() == WhatEver

 

Do you even read?

Back to the topic:
You cant cast because its not a block while in the inventory, its an itemstack.