Explosive Mine / Replace a block and keep properties / Make a block invisible

Well, first of all sorry if my english is not good. I used to play skywars and there they had a explosive mine, but what is it? well, they used a gold pressure plate so when the player put the mine it is visible for the player that put the mine, but for the other players it was invisible, so a player could walk along a bridge and step on a mine then the mine explodes. that's what I want to do. I already have the code for making the explosion.

I think that they maybe change the mine into air, but the mine is like if it still were there.

Goal: Make a code that when I put the mine it is visible for me, but not for other players.

If someone is interested here's my code to make the explosion.

Code:

@EventHandler
    public void mina(PlayerInteractEvent eventmina) {
        FileConfiguration config = plugin.getConfig();
        if(eventmina.getAction() == Action.PHYSICAL) {
            Location location = eventmina.getClickedBlock().getLocation();
            if(eventmina.getClickedBlock().getType() == Material.GOLD_PLATE) {
                Player player = eventmina.getPlayer();
                player.getWorld().createExplosion(location, Float.valueOf(config.getString("config.mina-explosion")));
                player.sendMessage(ChatColor.RED+"Pisaste una mina explosiva");
                return;
            }
        }
    }

 

You can manipulate what block a player sees by using Player#sendBlockChange(). Everytime the block gets updated a player will see the original block again. Also if a chunk has to be loaded again.

But by sending a block change into air to everyone 1 tick after the mine has been placed should work fine.

 

I'm not really good at coding so I didn't understand too much, I know that it is bad to ask for a code, but could you explain me better or send me the code? please, sorry

 

@MightyOne What if the player uses F3 + A to reload chunks? Would that change it back to normal?

 

@KarimAKL @timtower i just tested it out with a plugin i cannot debug right now xD.
Either f3+a does not request all block information to be sent again by the server OR the ChunkLoadEvent gets triggered and you can refresh the fake blocks there. Sorry for the uncertainty.

I think it's the former one

 

@timtower I see.

@MightyOne Okay, either way it should work i guess. :7

 

I'm not understanding what is hapenning : (

@MightyOne I already try this, and it didn't work

Code:

@SuppressWarnings({ "deprecation", "unlikely-arg-type" })
    @EventHandler
    public void place(BlockPlaceEvent placevent) {
        Player jugador = placevent.getPlayer();
        if(placevent.getBlock() != null && placevent.getBlock().equals(Material.GOLD_PLATE)) {
            Location localidad = placevent.getBlock().getLocation();
            jugador.sendBlockChange(localidad, Material.AIR, (byte) 0);
        }
       
   
       
    }

Also I already change the value of "Material.Air" into "0(Zero)"

 

@jersogamer

You missed that one important part.

 

I have no idea how to do that

 

Scheduler programming is used very often in mc plugins and I don't want to be the one explaining it to you:
https://bukkit.gamepedia.com/Scheduler_Programming

 

Sorry, I tried it, but I couldn't do it, I read that page like 5 times and I didn't get it, the problem here is that I don't know how to add that into my code, and I already looked for the answer in the forum, but I have the same problem, I don't know how to implement that in my code.

 

@jersogamer Try like this:

Code:Java

@EventHandler
public void place(BlockPlaceEvent placevent) {
    Player jugador = placevent.getPlayer();
    if(placevent.getBlock() != null && placevent.getBlock().equals(Material.GOLD_PLATE)) {
        Location localidad = placevent.getBlock().getLocation();
        new BukkitRunnable() {
            public void run() {
                jugador.sendBlockChange(localidad, Material.AIR, (byte) 0);
            }
        }.runTaskLater(plugin, 1);
    }
}

 

I tried it, but It didn't work, also I had to add many things to my code, 'cause there were many warnings.

Code:

@SuppressWarnings("unlikely-arg-type")
    @EventHandler
    public void place(BlockPlaceEvent placevent)  {
        final Player jugador = placevent.getPlayer();
        if(placevent.getBlock() != null && placevent.getBlock().equals(Material.GOLD_PLATE)) {
            final Location localidad = placevent.getBlock().getLocation();
            new BukkitRunnable() {
                @SuppressWarnings("deprecation")
                public void run() {
                    jugador.sendBlockChange(localidad, Material.AIR, (byte) 0);   
                }
            }.runTaskLater(plugin, 1);
        }
        

 

@jersogamer Did you remember to import after that? Also change "plugin" in the "runTaskLater(plugin, 1)" to a instance of your main class. (the one that extends JavaPlugin) Of course that only applies if "plugin" isn't already a instance of your main class. If you did these things already then i don't have a clue as i'm pretty new.

I really hope i used the correct names for what to do, anyway hope this helps. :7