Plugin Development Video Tutorial Series

I just started making a few tutorials on plugin development. Each section focuses on making a single plugin that demonstrates the subject.

I'll update this topic with the new ones too, so you don't even have to subscribe or look at the playlists.


TNTNotifier - Introductions / Basic Concepts

1. Project Set-up
2. Events and Messages
3. More Events
4. Permissions
5. Ignition
6. Notifications

FlatLands - Terrain Generation

1. Project Set-up
2. Terrain Creation
3. Terrain Creation

TNTNotifier (again) - Config Files

1. Creating the Default File
2. Implementing the Options
3. Updating to YamlConfiguration
   

SuperPick - Chat Commands

1. Project Set-up
2. Player Interactions
3. Defining Commands
4. Implementing the Commands

NotSoFlatLands - Hilly Terrain Generation

1. SimplexOctaveGenerator
2. Noise
3. Adding Long Grass

GiveMe - Further Commands

1. Project Set-up
2. CommandExecutors
3. Command Arguments

 

yay!
they are awesome

 

Just watched about 1 min of the first one, I already know all this so I don't need to watch them. But the quality is very good and speech is clear and you explain it clearly; good job!

 

I'll get to more advanced stuff eventually. If I started with custom events I would have got loads of messages asking what an event was.

 

I think it would be good if you maybe followed the setup of my huge plugin tutorial and then expanded from that.

 

These are awesome, and now know and fully understand what goes into a plugin etc... Cant wait for the next videos

Keep up the good work.

 

I will do

Thanks for the support.

I will try to make the next few a bit less random and maybe start building a actual useful plugin to use as an example.

This is after I stop being distracted by 1.8 that is

I'm also looking for suggestions on what I could include in future videos, post 'em here

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

You mean like different style plugins? Well you could do a variation of things, from something simple like your TnT plugin, up to a leveling based system plugin for a skill or something... Im sure in that array of things, you would cover most things available to you anyway

 

Well I mean specific things, like terrain generation or using the map API for example.

 

Oh in that case, idk, thats way over my head to know what you could do with that sorry...

This is why im watching your tuts ^^

EDIT: I have just thaught of something.. Maybe it fits into it maybe it doesnt... But create some sort of instances for RPG server like they have on WOW

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

maybe something like mob arena? that was such a good plugin, but maybe a little too complex for beginners

 

Hello,

I've have watched the first two videos and have followed the TNTNotifier example as far as the second video.
I'm having a bit of a problem in that when TNT is placed nothing happens... TNT does not turn to cake, nor are there any messages written to the console.
The plugin is being logged as enabled.
I have no errors when compiling.
I'm not using any other plugins.
And I have triple checked my code to be sure that it matches what was shown in the videos.

I'm using:
The latest Bukkit
Eclipse Version: Indigo
Java development 7

Is it possible that the latest Bukkit has changes that will effect this programming example?

Thanks

 

WOW, back when i was learning i watched samiko's video and they were horrible compared to yours. i only watched the first 5min because i don't really need it but i like it how you actually explain the stuff properly most others just expect you to copy code. I was even thinking i may have to make a tutorial if no-one sooner or later does it right

So Great Job (well the first 5min was great, can't comment on the rest but still..)
+Like 4 you!

 

very good videos... I did like it a lot.. but I didn't release my plugin from it... hint hint

I would keep on going with it... it is simple but very easy to comprehend and the steps are good.

Thinks to do:

Config file
Ingame Commands
some more best practices or "framework / Layout" of plugins
some more special bukkit cases on how to do stuff

Don't have any more ideas atm.. except please create a playlist for those videos.. they are hard to come by on youtube itself

 

There already is one, you should see it next to the video.

 

hmm will do.. btw: http://forums.bukkit.org/threads/admn-chat-tntembarrass-v0-4-embarras-those-griefers-1139.37196

 

I never said not to use it to make a plugin and submit it

The source is not exactly the same either so this person has obviously put a bit of time and thought into it.

In other news, I made some layout changes and renamed the videos to make more sense.

This was a lot more popular than I expected it to be so I have expanded my original plan

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

good.. and you posted in the the thread too.. read more about it there...

and I agree you never said it... but.. well... lol...

 

Hey Jacek, awesome videos. thanks for making them!

Would you be open to making a tutorial based upon my text one? It's about storing config values using mySQL. It doesn't cover things like setting up a mySQL server or anything, though you could add this if you wanted. I can write more instructions if needed.
Anyway, here it is: http://forums.bukkit.org/threads/java-tut-use-mysql-to-store-your-config.37204/
If you can't, I will give it a shot

 

I might do something with MySQL, but using it to replace the config file really a good idea ? I mean the config file is only read once anyway right so you won't gain that much performance.

 

yes and no. depends on how much data you are storing.
i had a few requests for it to be built into my plugins, so I guess the benefit might not be performance, but ease of management.

 

Due to the silly amount of requests I got, I just added some videos on config files. Now stop PMing me !

 

In regards to the damage true/false option when I followed your tutorial it doesn't work.

EntityListener:

Code:

package arc.madd.tntnote;

import org.bukkit.entity.Entity;
import org.bukkit.entity.TNTPrimed;
import org.bukkit.event.entity.EntityListener;
import org.bukkit.event.entity.ExplosionPrimeEvent;

public class TNTNoteEntityListener extends EntityListener {
    
    private TNTNote plugin;
    
    public TNTNoteEntityListener(TNTNote instance) {
        
        this.plugin = instance;
        
    }
    
    public void onExplosionPrime(ExplosionPrimeEvent event) {
        
        if (event.isCancelled()) return;
            
        Entity entity = event.getEntity();
                
        if (entity instanceof TNTPrimed){
                    
            TNTPrimed tnt = (TNTPrimed) entity;
            
            if (plugin.config.getBoolean("damage") == false) {
                
                tnt.setIsIncendiary(false);
                tnt.setYield(0);
                
                tnt.remove();
                
            }
            
            event.setCancelled(true);
            
        }
            
    }
    
}

Config:

Code:

package arc.madd.tntnote;

import java.io.File;
import java.util.HashMap;

import org.bukkit.util.config.Configuration;

public class TNTNoteConfig {

    private Configuration config;
    private HashMap<String, Object> configDefaults = new HashMap<String, Object>();

    public TNTNoteConfig(File configFile) {

        this.config = new Configuration(configFile);

        this.configDefaults.put("drop", 4);
        this.configDefaults.put("place", 4);
        this.configDefaults.put("damage", true);

        if (configFile.exists() == false) {

            for (String key : this.configDefaults.keySet()) {
                this.config.setProperty(key, this.configDefaults.get(key));
            }

            this.config.save();

        } else {

            this.config.load();

        }

    }

    public int getInt(String key) {

        if (this.configDefaults.containsKey(key) == false) {
            return 0;
        }

        return this.config.getInt(key, (Integer) this.configDefaults.get(key));
    }

    public boolean getBoolean(String key) {

        if (this.configDefaults.containsKey(key) == false) {
            return false;
        }

        return this.config.getBoolean(key, (Boolean) this.configDefaults.get(key));

    }

}

Also when im op i am unable to detonate the tnt, is there a way to make it so ops can detonate?

 

In what way does it not work ?

 

whether the setting is true or false no damage is done

 

Okay, well your code looks okay. Perhaps try logging a message inside the

Code:

if (plugin.config.getBoolean("damage") == false) {

block. That would tell you if the problem lies with the config or the tnt blocking.

 

ok i added System.out.println("Damage False"); and when the config is false it is written but when true it doesn't

 

Which version of CB are you using ? In one part of the documentation setYield is described as setting the size of the explosion, in another part it is described as setting the percentage of blocks that are not totally destroyed (ie the percentage of drops). So it is possible that it was actually a bug that gave the effect of player damage, it's also possible that when I was testing this I completely misunderstood what was happening.

 

Just after the first video, i done everything same u-U but ... :

Code:

[SEVERE] Could not load 'plugins\TNTNotifier.jar' in folder 'plugins':
java.lang.ClassNotFoundException: fr.astaen.bukkit
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:36)
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:24)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:168)
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:215)
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:136)
    at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:139)
    at org.bukkit.craftbukkit.CraftServer.<init>(CraftServer.java:104)
    at net.minecraft.server.ServerConfigurationManager.<init>(ServerConfigurationManager.java:101)
    at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:136)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:348)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:417)

 

What does your plugin.yml look like ? You probably got the main wrong.