Checking for stuff in player inventory

How do i check if 2 items(under "Item:" in the config.yml) are next to each other in a player inventory and do something if the stacks a both 1

 

jacklin213
This is probably the worst way to do it, but..:

Code:

PlayerInventory inv = player.getInventory();
Material m1 = Material.getMaterial(plugin.config.getString("Item.One"));
Material m2 = Material.getMaterial(plugin.config.getString("Item.Two"));
HashMap<Material, Integer> found = new HashMap<Material, Integer>();
for (int i = 0; i<inv.getSize(); i++) {
    if (inv.getItem(i) != null && inv.getItem(i).getType() == m1) {
        if (found.containsKey(m2)) {
            if (found.get(m2) + 1 == i || found.get(m2) + 9 == i) {
                ItemStack i1 = inv.getItem(found.get(m2));
                ItemStack i2 = inv.getItem(i);
                //whatever you want to do
                found.clear();
                break;
 
            }
        }else {
            found.put(m1, i);
        }
    }else if (inv.getItem(i) != null && inv.getItem(i).getType() == m2) {
        if (found.containsKey(m1)) {
            if (found.get(m1) + 1 == i || found.get(m1) + 9 == i) {
                ItemStack i1 = inv.getItem(found.get(m1));
                ItemStack i2 = inv.getItem(i);
                //whatever you want to do
                found.clear();
                break;
            }
        }else {
            found.put(m2, i);
        }
    }
}

And the config would look something like:

Code:

Item:
  One: DIRT
  Two: DIAMOND

 

Ooh god I'm screwed XD