Starting my first plugin! Would like some help!

Hello,

I'd love to create my first plugin! I am already busy with learning java.

My idea for a first simple plugin was a basic God-like creature. Which will make 1 person God and that people can use /pray <message>. And then all the prayers will go to the God person!

So my question was if this is hard to make? And where can I find the syntaxes? Is there anyone who would like to help me with creating this plugin? (Someone who wants to answer my questions and can help me with some syntaxes)

I appreciate any effort towards helping me!

 

I bet this will help:
http://wiki.bukkit.org/HUGE_Plugin_Tutorial

EDIT:
Nvm, I read on an other topic that you already used it..

Well to answer you question:

1. No it's not hard to make
2. Use the http://wiki.bukkit.org/HUGE_Plugin_Tutorial

 

Do you happen to know the syntax for sending a player any message?

 

Well yes of course:

Player player = Bukkit.getServer().getPlayerByName("guy you want to be god");
player.sendMessage("message");

 

Many thanks, I am busy with coding right now, I bet it will take me some time.

 

Good luck although in my opinion unless you have a strong knowledge of Java itself this seems quite difficult but good luck and have fun.

 

@thehutch I don't really have a strong knowledge. Well, actually, I started yesterday XD but I think that one day, it will certainly work

But, hutch, do you perhaps know an easier idea to begin with?

 

Well i'd say start with something simple like an anti-grief plugin (BUT DO NOT POST) or else you will be trolled and laughed at everyone is fine with you creating a plugin to learn but don't post it if there is already on there. Since your new to the bukkit then i'd create a plugin using most of the events in the aPI so you can try out using them all so you know your way around the code. But good luck with your journey.

 

@ItsHarry I have got a question. Should I use the playerlistener? If so, what should I replace PLAYER_MOVE with?

I think I will actually not fail at this at least, I hope I wont.

Code:

package me.timy659.praytogod;

import java.util.logging.Logger;

import org.bukkit.Bukkit;
import org.bukkit.entity.Player;
import org.bukkit.plugin.PluginManager;
import org.bukkit.plugin.java.JavaPlugin;

public class PraytoGod extends JavaPlugin {

    public static void main(String[] args) {

        Logger log = Logger.getLogger("Minecraft");

        public void onEnable() {
            log.info("[PraytoGod] Your plugin has been enabled!");

            PluginManager pm = this.getServer().getPluginManager();

            Player player = Bukkit.getServer().getPlayerByName("timy659");
            player.sendMessage("");

        }
        public void onDisable() {
            log.info("[PraytoGod] Your plugin has been disabled!");
        }
    }

}

thats the code so far. Do you know if it makes sense?

BTW: I get like 7 errors in this small piece of text :S

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

 

public static void main(String[] args) {
this is not needed lol did you just add this because it was in the "helloworld" application thing

no offence but most of that makes no sense no offence

Code:

            Player player = Bukkit.getServer().getPlayerByName("timy659");
            player.sendMessage("");

and

Code:

            PluginManager pm = this.getServer().getPluginManager();

because your not registering any events

 

@thehutch okay lol. But the plugin should send messages to timy659 by the command /pray <message>. What syntax should I use for that?

Code:

public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args){
    if(cmd.getName().equalsIgnoreCase("basic")){ // If the player typed /basic then do the following...
        doSomething
        return true;
    } //If this has happened the function will break and return true. if this hasn't happened the a value of false will be returned.
    return false;
}

Thats the code for a command, but how do I send/store the information which comes after /pray ?









And I see that if I hit run (im using eclipse) that it says: java.lang.NoSuchMethodError: main
Exception in thread "main"

Which I think means that this class is not stated as main class :S

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

 

And what do you expect to happen when you hit run?

 

I think I need to have a good look how some easy plugin is made + commands and extras. Maybe thats a better idea.

@sddddgjd Nothing, but just to check if the code is correct and if it has no bugs.

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

 

And how would eclipse know to run your program?
What i'm trying to point out is, eclipse can't run java plugins,because it doesn't make sense...you need to export it to a jar,then put it in the bukkit plugins,then run!

 

@sddddgjd Ah okay, I thought that I could check for flaws this way too. Do you know a simple plugin to check its code? Thnx for helping.

 

PM'd you my skype id,i'll help you (because i'm bored :d)

 

I changed plans!

Instead of sending a message to 'god' people will just see a line saying: Your prayer has been heard. I know its easy and all but it's something to start with and it makes everything a lot easier!

This is my code so far:

Code:

package me.timy659.praytogod;

import java.util.logging.Logger;

import org.bukkit.Bukkit;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.plugin.PluginManager;
import org.bukkit.plugin.java.JavaPlugin;

public class PraytoGod extends JavaPlugin {

 
        Logger log = Logger.getLogger("Minecraft");

        public void onEnable() {
            log.info("[PraytoGod] Your plugin has been enabled!");
  
            public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args){
                if(cmd.getName().equalsIgnoreCase("pray")){
                    sender.sendMessage(ChatColor.RED + "Your prayer has been heard!");
                    return true;
                }
                return false;
 
            Player player = Bukkit.getServer().getPlayerByName("timy659");
            player.sendMessage("");

        }
        public void onDisable() {
            log.info("[PraytoGod] Your plugin has been disabled!");
        }
    }

}

And I am going to try this plugin now, I'll let you hear if I got any errors.

(I will.)

 

One problem with your plugin is:

The onCommand method should be NOT be in the onEnable method.
Put it OUTSIDE of onEnable. Also, did you register the command in plugin.yml?

 

You can also add me on skype! sybren.gjaltema

 

@ItsHarry I did. This is my plugin.yml:

name: PraytoGod
main: PraytoGod.PraytoGod
version: 1.0
commands:
basic:
description: Pray command.
permission: Pray.PraytoGod
usage: |
/pray

Is that the right way?

and should I use some line called:

Player player = (Player)sender; ?

Because I found it in someones plugin.

And if I have done this, do you know a tutorial where I can find out how to compile this to a jar?

 

Replace /pray with /[command], you don't need pray...get rid of "permission",it's useless...other than that,seems ok!
On eclipse,you click file,export,jar file,select all the files,select where to save the jar,and run it...(or something similar)
On netbeans,you press the build button!

 

Sounds like a fun idea, but you might get some atheists hating on it xD

 

@ItsHarry I got a warning when compiling without plugin.yml: JAR export finished with warnings. See details for additional information.
Exported with compile errors: PraytoGod/src/me/timy659/praytogod/PraytoGod.java

and with a plugin.yml it gives an error:

JAR creation failed. See details for additional information.
Exported with compile errors: PraytoGod/src/me/timy659/praytogod/PraytoGod.java
Resource is out of sync with the file system: '/PraytoGod/plugin.yml'.


should I export as a jar file? or as a runnable jar file?

NEVER MIND I got it!

DAMN! Okay I put my plugin in but then I got this error: [SEVERE] Could not load 'plugins\PraytoGod.jar' in folder 'plugins':
while scanning for the next token
found character '\t' that cannot start any token
in "<reader>", line 8, column 5:
/[command]
^

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

 

Something is wrong with your YAML, try using an editor like Notepad++.
Make sure instead of using tabs you do 4 spaces

 

@MineDev I spotted a tab -.- changed it, testing now

Got another error:

Code:

[SEVERE] Could not load 'plugins\PraytoGod.jar' in folder 'plugins':
java.lang.ClassNotFoundException: PraytoGod.PraytoGod
    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:207)
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:130)
    at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:128)
    at org.bukkit.craftbukkit.CraftServer.<init>(CraftServer.java:97)
    at net.minecraft.server.ServerConfigurationManager.<init>(ServerConfigurationManager.java:51)
    at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:132)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:335)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:422)

And btw: Thanks to everyone who is helping me! I kinda get the feeling that I didn't even create this myself, because I asked for so muc help :|

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

 

ok PrayToGod.PrayToGod is incorrect check that you have it right so in eclipse if your package is PrayToGod and your main class is PrayToGod, then it should work.

Tell me what your package and main class is

 

@MineDev main class is called PraytoGod.java and this is its public class line : public class PraytoGod extends JavaPlugin {

The package is called = me.timy659.praytogod but I dont think you mean that package do you? and the plugin itself is called : PraytoGod.jar (well thats the file)

 

ok
In the yml change PrayToGod.PrayToGod...

to me.timy659.praytogod.PraytoGod

Case SenSiTiVE

 

@MineDev I changed it, the plugin works now. Well, its loaded but when typing /pray it still says: unknown console command :C

Any one knows what I did wrong? Here is the updated code uptil now :

Code:

package me.timy659.praytogod;

import java.util.logging.Logger;

import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.plugin.PluginManager;
import org.bukkit.plugin.java.JavaPlugin;

public class PraytoGod extends JavaPlugin {

        Logger log = Logger.getLogger("Minecraft");

 public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args){
                if(cmd.getName().equalsIgnoreCase("pray")){
                    sender.sendMessage(ChatColor.YELLOW + "Your prayer has been heard!");
                    return true;
                }
                return false;

}
        public void onEnable() {
            log.info("[PraytoGod] Your plugin has been enabled!");

        }
        public void onDisable() {
            log.info("[PraytoGod] Your plugin has been disabled!");
        }
    }

 

Code:

public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args){
                if(cmd.getName().equalsIgnoreCase("pray")){
                            if (args.length == 0) {
                    sender.sendMessage(ChatColor.YELLOW + "Your prayer has been heard!");
                    return true;
                }
}
                return false;

}

try that.

and did you register the commands in the yml?