Setting procentage of doing things, HOW?

Hey guys i want to set 33% of giving myself poison effect and 33% chance of giving the player that i hit poison effect, ik how to do the poition thing but how can i do the procentage thingy? Plz help.

 

This might work:

Code:java

Random rnd = new Random(101);
if (rnd.nextInt(101) <= 33) {
    // 33% of change of doind something
}

 

this is really simple java Random usage

Random r = new Random();
//gives random number from 0-2
int randomNumber = r.nextInt(3);
//do randomNumber++ if you want it from 1-3

if(randomNumber == 1){
//33% chance to get here
}else if(randomNumber == 2){
//another 33 % chance to get here
}else{
//and yet another 33% to get here
}

 

FozZeW It will gives a error by the Random<-(error)r = new Random<-(error)(); thing

 

it won't, import java.util.Random;

 

quinster08
import "java.util.Random;" ?
EDIT: Ninja'd

 

sheigutn I imported it and then it will say "Remove" as error

 

Show us your code please, post it in [.syntax] tags (without the dot)

 

Code:java

import java.util.Random;
 
import org.bukkit.Bukkit;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.entity.EntityDamageByEntityEvent;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.potion.PotionEffect;
import org.bukkit.potion.PotionEffectType;
 
public class Main extends JavaPlugin implements Listener {
 
 
    @Override
    public void onEnable() {
      Bukkit.getServer().getPluginManager().registerEvents(this, this);
    }
 
    @Override
    public void onDisable() {
 
    }
 
@EventHandler
public void Simoons(EntityDamageByEntityEvent e){
    if(!(e.getEntity() instanceof Player)){
        return;    }
          if(!(e.getDamager() instanceof Player)){
          return;
            }
          Player PlayerWhoGotHit = (Player)e.getEntity();
          Player PlayerWhoHit = (Player)e.getDamager();
          if(!(PlayerWhoHit.getItemInHand().getItemMeta().getDisplayName().equals("Kikuichimonji "))){
    return;
Random r = new Random(); <- error in eclipse - quick fix; remove
          int randomNumber = r.nextInt(3);
          if(randomNumber == 1){
              e.setDamage(5.0);
              PotionEffect poison = new PotionEffect(PotionEffectType.POISON, 65, (int) 0.5);
              PlayerWhoGotHit.addPotionEffect(poison);
          }else if(randomNumber == 2){
          e.setDamage(5.0);
          }else if (randomNumber == 3) {
              e.setDamage(5.0);
              PotionEffect poison = new PotionEffect(PotionEffectType.POISON, 65, (int) 0.5);
              PlayerWhoHit.addPotionEffect(poison);
}
}
}
}
 

sheigutn Ikr

 

add an "}" after the "return;" and before "Random" and it should work and remove one "}" of the 4 "}"

 

sheigutn Nice will give no errors for so far - will test it if it real works in-game

sheigutn Nope it loads in console But it doesnt give potion effects How can i fix this?

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

 

quinster08 any errors?

 

sheigutn Idk will test now

 

quinster08 try to debug logging messages in the console
Did you add a plugin.yml?

 

Code:

[SEVERE] Could not pass event EntityDamageByEntityEvent to Kikinogwatte
s v1.0
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:427)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav
a:62)
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.j
ava:477)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j
ava:462)
        at org.bukkit.craftbukkit.v1_6_R2.event.CraftEventFactory.callEvent(Craf
tEventFactory.java:95)
        at org.bukkit.craftbukkit.v1_6_R2.event.CraftEventFactory.callEntityDama
geEvent(CraftEventFactory.java:383)
        at org.bukkit.craftbukkit.v1_6_R2.event.CraftEventFactory.handleEntityDa
mageEvent(CraftEventFactory.java:408)
        at net.minecraft.server.v1_6_R2.EntityLiving.damageEntity(EntityLiving.j
ava:614)
        at net.minecraft.server.v1_6_R2.EntityHuman.damageEntity(EntityHuman.jav
a:704)
        at net.minecraft.server.v1_6_R2.EntityPlayer.damageEntity(EntityPlayer.j
ava:370)
        at net.minecraft.server.v1_6_R2.EntityHuman.attack(EntityHuman.java:874)
 
        at net.minecraft.server.v1_6_R2.PlayerConnection.a(PlayerConnection.java
:1115)
        at net.minecraft.server.v1_6_R2.Packet7UseEntity.handle(SourceFile:36)
        at net.minecraft.server.v1_6_R2.NetworkManager.b(NetworkManager.java:296
)
        at net.minecraft.server.v1_6_R2.PlayerConnection.e(PlayerConnection.java
:118)
        at net.minecraft.server.v1_6_R2.ServerConnection.b(SourceFile:37)
        at net.minecraft.server.v1_6_R2.DedicatedServerConnection.b(SourceFile:3
0)
        at net.minecraft.server.v1_6_R2.MinecraftServer.t(MinecraftServer.java:5
90)
        at net.minecraft.server.v1_6_R2.DedicatedServer.t(DedicatedServer.java:2
26)
        at net.minecraft.server.v1_6_R2.MinecraftServer.s(MinecraftServer.java:4
86)
        at net.minecraft.server.v1_6_R2.MinecraftServer.run(MinecraftServer.java
:419)
        at net.minecraft.server.v1_6_R2.ThreadServerApplication.run(SourceFile:5
82)
Caused by: java.lang.NullPointerException
        at Me.krickie.Main.Simoons(Main.java:40)
        at sun.reflect.GeneratedMethodAccessor14.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:425)
        ... 21 more

sheigutn It gives 1 error in console, and yes i have a plugin.yml ofcourse i do im not that dumb lol.

 

quinster08 It was only a question^^ What's line 40?

 

quinster08 Lol we can see you have a plugin.yml, read this post: http://forums.bukkit.org/threads/ho...ubleshoot-your-own-plugins-by-yourself.32457/ (Since it's an event exception caused by a npe, we know you have a plugin.yml, else your plugin won't even load and it would throw an InvalidPlugindescriptionException)

 

sheigutn line 40 is this;int randomNumber = r.nextInt(3);

 

CaptainBern I asked if he had a plugin.yml before he posted the stacktrace.

 

sheigutn Ah nvm then... Sorry quinster08 my bad :c

 

sheigutn or CaptainBern Do u know how to fix it?

 

quinster08 You probably didn't defined the Random variable properly, let me take a look...

 

CaptainBern Found the problem?

 

quinster08 Take a look here: http://www.javamex.com/tutorials/random_numbers/#.UieTITa-2So

 

CaptainBern I dont understand that im not that good with bukkit - im new

 

quinster08 That's what we call Java my young padawan.

 

CaptainBern Yeah very fine for java but i dont get it, i can't learn java in 2 secs

 

quinster08 I give you 5 minutes. Lol no just kidding, uhrm well take a look at furminga humana's post, try that code. (it's the second answer on this thread)

 

Are you sure you dont have any returning before line 40?

@quinster08 I told u doing r.nextInt(3); will generate number from 0-2 not 1-3 so you need to just add 1 to it
like randomNumber++; or just doing r.nextInt(3) + 1;

Tip that you must remember FOREVER java starts counting from 0 not from 1

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

 

FozZeW I hate java's indexing -.-