[1.8.9] Stopping a player from harvesting a block

[blahblahbal]

So I've set bedrock to breakable, but I only want it breakable with one tool. I know I have to subscribe to PlayerEvent.BreakSpeed, and I've looked at it in the source, but how do I cancel the event? (It says it's 'Cancelable')

 

And what file should I put the code for this in? I have a ModEventHandler.java, I'm assuming there?

[jeffryfisher]

If I recall correctly, you set the event's newSpeed to zero to prevent the player from breaking the block (he never makes any progress). I don't think you need to cancel the event.

 

Put the event handler with its @SubscribeEvent annotation into a listener class, which may have multiple events. Your main postInit method needs to register an instance of each listener class with the bus(es) firing its event(s).

 

Example:

  @EventHandler
  public void postInit(FMLPostInitializationEvent e) {
    NethergemEventSubs ES = new NethergemEventSubs ();

    super.postInit (e);
    MinecraftForge.EVENT_BUS.register (ES);
    FMLCommonHandler.instance ().bus ().register (ES);
}

 

If you have events from multiple busses, then you could be very clever and create a separate listener class for each bus. I'm too lazy to do that, so I bundle all my events into one class and then register its instance on every possible bus until all of my events work.

 

Each registration's reflection code seems to be smart enough to pick out its own events without interference from other methods. You might even be able to nest an event handler method inside a block or item class and then register its instance with a bus.  Then your method would have field and method visibility from inside the block or item. I'll have to try that sometime to see "What could possibly go wrong?"

[blahblahbal]

Alright, got that. I should've mentioned in the OP that I also need to know how to get the pickaxe that is mining the block, or the harvest level of said pickaxe.

[Draco18s]

Well the PlayerEvent.BreakSpeed is a Player event, so it will naturally give you the player involved.  From that you can figure out what item they're holding.