"Inventory does not contain itemstack" (Even though it does!!)

Ok, hi, this is my current code:

Code:

 if (!player.getInventory().contains(new ItemStack(388, cost))){
player.sendMessage(ChatColor.RED + "[EndcraftShop] You dont have enough emeralds!");
return;
}
player.getInventory().addItem(new ItemStack(mat, amt));
player.getInventory().remove(new ItemStack(388, cost));
player.updateInventory();

And it is always coming up with the "you dont have enough emeralds", even when i added the lines

player.getInventory().addItem(new ItemStack(388, cost));
player.updateInventory(); above it!

What am i doing wrong?

Thanks in advance.

 

Try using .containsAtLeast(<the ItemStack>).

 

ContainsAtLeast has got to have an itemstack and an integer.

What would i put in the integer?

if (!player.getInventory().containsAtLeast(new ItemStack(388, 1) (itemstack) , cost (int) ))

OK, NEVERMIND, I FIXED IT! THANKS FOR THE NICE CODE

EDIT by Moderator: merged posts, please use the edit button instead of double posting.