Test block at entity

So I need to know how to test if there is a block in an Entity.
I don't know if I need to use an event (neither what) or something else.
I only have this:
as = armorstand

Also, how to kill an armorstand if it has no equipment?

Code:java

 
Location location = as.getLocation();
         int x = location.getBlockX();
         int y = location.getBlockY();
         int z = location.getBlockZ();
         World w = location.getWorld();
         Location loc = new Location(w, x, y, z);
         if (loc.getBlock().getType() == Material.WEB);

 

@PikaThieme
To test if an armourstand has no equipment, go through the hands and all armour slots and check if the item is null (if there are no items in those slots). If all of them are null, use the .remove() method to kill the armour stand.

 

@Zombie_Striker can you also help me with my other question?
Because I really don't know what event to use :/

 

@PikaThieme
Well, when do you want it to be triggered, or do you not want there to be a trigger? By that I mean do you want it to happen only when something happens, or in repeating intervals (using repeating tasks.)

 

@Zombie_Striker I want to make it that if you place a cobweb in an ArmorStand that it removes a specific datatag

 

@PikaThieme
Then Listen to either BlockPlaceEvent or PlayerInteractWithEntityEvent. If a block is actually placed, use BlockPlaceEvent. If it is just a player clicking an armor stand, then PIWEE.

 

How do I get the block that is placed in the ArmorStand? I know I have to use BlockPlaceEvent and something like this:

Code:text

 
Location location = as.getLocation();
int x = location.getBlockX();
int y = location.getBlockY();
int z = location.getBlockZ();
World w = location.getWorld();
Location loc = new Location(w, x, y, z);
if (loc.getBlock().getType() == Material.WEB);

 

@timtower how to?