Regenerate trees

Discussion in 'Plugin Development' started by MrBakbuki, Jan 19, 2021.

  1. Offline


    Hi all,
    I want to create a plugin that restores a tree after a player breaks it, and I can't figure out how to do this.
    Any help appreciated! Keep in mind I'm pretty new to Java, so please make it simple.
    Thanks for reading.
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    There are several ways to do this of varying levels of complexity.

    The first and simplest way is to regenerate any log-block when a player breaks it. You can achieve this using BlockBreakEvent. If the broken block is a type of desired log, you schedule a task 1 tick in the future that replaces the broken block with a log. This will make any placed log-block unable to be removed, however. But it is by far the simplest way.
    BukkitScheduler scheduler getServer().getScheduler();
    scheduler.scheduleSyncDelayedTask(this, new Runnable() {
    public void run() {
    // Place the log back
    20L); // 20 ticks (1 second) in the future
    The other more complex way is to determine wether or not any broken log-block belongs to a tree and place it back either after it is broken, or after the complete tree is broken. Placing it back immediately would be simpler, however. I think the more complex option is out of your league here.
    You would have to keep track of broken log blocks while preventing memory leaks. It will get a little complex.
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    @Kars Thanks for responding.
    However, this is not what I'm looking for. Is there a way to make a tree regenerate after the player breaks the full tree?
  4. Offline


    Yes, but as you requested we "keep it simple" i assume that this would be out of reach for you at this point.

    The best way to do this in my opinion is this:
    • Catch BlockBreakEvent. If the broken block is a log, scan adjacent blocks (recursively) for logs/leaves and save their Locations into an object.
    • Scan only within a range to prevent entire dark oak forests from being saved.
    • Delete the saved tree after a while to prevent memory leaks and overflow.
    • On BlockBreakEvent, if the broken block is a log, loop through all saved trees. If the block belongs to a saved tree, check all Locations of the saved tree and if all logs are removed, restore all the blocks to their original state.
    • In addition to Location you will have to save if that block was a log or a leaf.
    Good luck.

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