Using Permissions with BlockPlaceEvent

I'm a bit new to this but what I'm trying to achieve is to create a permission node for placing a block type which should be fairly simple but I'm kinda of making a balls of it. Hopefully someone can point me in the right direction.

Currently I have this for the event

Code:

    @EventHandler(priority = EventPriority.HIGH)
    public void onBlockPlace(BlockPlaceEvent event){
        if (event.isCancelled()) return;
        if(sender instanceof Player){
            if(!permCheck(Player)sender, "bp.TNT")){
        }
 
        if (event.getBlock().getType() == Material.TNT){
            event.setCancelled(true);
        }
        if (event.isCancelled()) return;

I've gotten it to work now all I need to do is invert how the permissions work.
Currently, if a player has the permission then only can they place the block. What I want to do is if they HAVE the permission they can't place the block. If they don't have the permission they can place the block

Suggestions? I thought I was meant to use an exclamation mark to invert my statement

Didn't test

Code:java

if(player.hasPermission("bp.TNT"))
    return;

Didn't seem to work.

Here's my code currently for the tnt block

PHP:

    @EventHandler(priority = EventPriority.HIGH)
    public void onLavaBlockPlace(BlockPlaceEvent event){
        Player player = event.getPlayer();
        Block block = event.getBlockPlaced();
 
        if(block.getType() == Material.LAVA)
{
            if(((Player) player).hasPermission("bp.TNT")) {
 
        }
 
        else {
 
            if ((player.isOp())) {
 
            }else{
 
                event.setCancelled(true);
                player.sendMessage(ChatColor.RED + ("You don't have permission to place this block!"));
            }
 
            event.setCancelled(true);
        }
          }
    }

This should do it.

Code:

@EventHandler(priority = EventPriority.HIGH)
public void onLavaBlockPlace(BlockPlaceEvent event){
    Player player = event.getPlayer();
    Block block = event.getBlockPlaced();
    if(block.getType() != Material.LAVA)
        return;
   
    if(!player.hasPermission("bp.TNT")) {
        player.sendMessage(ChatColor.RED + "You don't have permission to place this block!");
        event.setCancelled(true);
    }
}

Awk. It didn't work and then I realized I was standing in the spawn on my test server >.<
Working now though

HTML:

    @EventHandler(priority = EventPriority.HIGH)
    public void onLavaBlockPlace(BlockPlaceEvent event){
        Player player = event.getPlayer();
        Block block = event.getBlockPlaced();
 
        if(block.getType() == Material.LAVA)
{
        if ((player.hasPermission("bp.lava"))) {
            player.sendMessage(ChatColor.RED + "You don't have permission to place this block!");
            event.setCancelled(true);
 
        }
 
        else {
 
            player.sendMessage(ChatColor.GREEN + ("Block Was placed Successfully!!"));
            event.setCancelled(false);
        }
 
}
          }

Thank you for your help!

By default OPs have the permission bp.lava

Is it possible to make them ignore this?

Try adding a check to see if player isOp

something like:

||
if player.isOp() && !player.hasPermission("Your.Node.Here")
event.setCancelled(true);

Sure, change the default in the plugin.yml: http://wiki.bukkit.org/Plugin_YAML

I have done this and it is working as it should

PHP:

    @EventHandler(priority = EventPriority.HIGH)
    public void SMOOTHSTAIRS(BlockPlaceEvent event){
        Player player = event.getPlayer();
        Block block = event.getBlockPlaced();
        if(player.isOp() || block.getType() != Material.SMOOTH_STAIRS)
            return;
   
        if(player.hasPermission("bp.smoothstairs")) {
            player.sendMessage(ChatColor.RED + "You don't have permission to place this block!");
            event.setCancelled(true);
        }
    }

@V10lator I'm a bit new to the using the config.yml for things other than the main, version. author + permissions.

Currently what I'm trying to do now is to use a global permission like bp.* to give all the permissions of the plugin to the user/group. Do I have to group all the permission nodes somehow or is there a relatively quick way to grab everything?
Currently 100+ permissions associated with this plugin

@Willbbz 100+ permissions? Wow...
Well,there is some child/parent system, I think, but I never worked with it.

You've probably deduced I'm quite new to this but I have a permission node set for every placeable block type in the game where if a group or player has the permission node it means they cannot place the block. All of the nodes follow bp.<blockname>

Although I think this will require a system like bp.ores.diamondore so I can group all the ores together like bp.ores.*

you must add them al to your plugin.yml, because bukkit does not have sutch an list by it self