Knokko's Custom Items
Note: this plug-in requires a different installation procedure than most other plug-ins. You really need to check the installation section or one of the tutorials.
Description
This plug-in allows the owners and developers of servers to create custom items with their own textures. (It requires a server resource pack.) Everyone who would like to use this plug-in needs to download the Editor and use that to create their own custom item set.
Installation
- Download and run the Editor. Editor.jar can be found in the Files section. If you have a working Java installation, you can just download and double-click this file. If not, you can either install Java or download a native version of the Editor from https://github.com/knokko/custom-items-gradle/releases
- Put this plug-in (CustomItems.jar) in your plug-ins folder
- Configure the items and textures you want (in the Editor)
- Click on the Export... button, and follow the steps (in the Editor)
If you need more detailed information about these steps, you can ask for help on the Discord server.
Discord server
Invite link: https://discordapp.com/invite/bmF3Zvu
New tutorials:
https://www.youtube.com/watch?v=GsC-pNlBjwg
Old basic tutorials:
Text: https://knokko.github.io/custom%20items/index.html
Video: https://www.youtube.com/playlist?list=PLcc-tPs9PuADC-shEBRynL9s2j6slSWCa
Old advanced tutorials:
Custom containers (video): https://knokko.github.io/custom%20items/tutorials/containers/index.html
Wands and guns (text): https://knokko.github.io/custom items/tutorials/wands and guns/index.html
Troubleshooting
If you can, use /kci debug
If that doesn't work, check whether CustomItems is listed in /plugins
Features
-Custom items with their own display name, lore, attribute modifiers and textures
-Custom tools with their own damage and durability
-Custom bows with their own damage, speed and durability
-Custom armor with their own armor value and other attribute modifiers, unfortunately without model texture.
-Crafting recipes that can use vanilla ingredients and custom items (or combined)
-Block & mob drops for custom items
-Custom containers (like a custom furnace, but much more powerful, unfortunately without block texture)
-Custom projectiles with custom wands to launch them
-Custom blocks (but still in beta)




Check the wiki for more information.
Source code (programmers only)
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Posted May 10, 2019In reply to knokko:
Thank you so much, this is such a great plugin for me, otherwise I wouldn't have bothered to really comment about it but I wanted to use this badly and this seems to work now, once again thanks! Have a great day!
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Posted May 10, 2019In reply to knokko:
Actually as it seems I had both versions at the same time (dumb mistake), with the newer version it looks like the Knokko Core commands don't work at all and this armor bug still seems to occur, I don't know if it's just the github version, but I'll wait till the new version releases on the actual release page I guess? I'm using the editor and the attributes seem to work better now, however wearing multiple pieces of custom armor sets still seems to make my armor bar decrease and I still take more damage, as before. Maybe I'm doing something wrong, so if I am could you tell me? All I did was download that version, remove the old Knokko Core, and add that one, and now it seems like Knokko Core isn't working at all but it does show up under the plugin list, sorry for another reply but I'm not sure why this is happening still. If you could help again it'd be appreciated!
(For Specifics, I'm making leather armor into "Emerald Armor" by coloring it green, and also giving it a higher value than diamond but when I wear the helmet and the chestplate the value actually decreases instead of increasing. Armor Piece example: chestplate armor value = 9.0 / armor toughness = 2.5)
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Posted May 10, 2019In reply to Haxabur26273:
I don't think you are doing something wrong, this is most likely my fault (or minecraft/Bukkit has weird behavior, but that is also my responsibility to take care of).
I didn't get that bug with the new version of Knokko Core, at least not that I am aware off. Could you send the .cisb file to knokogator@hotmail.com ? (Or publish it somewhere where I can access it) so that I can try this myself?
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Posted May 10, 2019In reply to knokko:
Sure thing, hope I'm allowed to post links? Not sure kinda new to this. It seems like the whole Knokko core version you gave me doesn't work anymore. / Emailed it to you.
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Posted May 10, 2019In reply to Haxabur26273:
I found the bug you were talking about and resolved it. The new version of knokko core will most likely be available 12 to 13 hours later on BukkitDev, but you can download it already from https://github.com/knokko/Core-Plugin-1.14/blob/master/Knokko%20Core%201.14.jar
It is the same link as before, but the original file has been overwritten, so you will download the improved one.
Thank you for pointing this problem out!
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Posted May 11, 2019In reply to knokko:
Okay, can confirm this does definitely work now, tried with multiple sets, thanks a lot, and for fixing it so quickly, and also responding so quickly! Have a great day and keep doing good work!
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Posted May 8, 2019Hey there! I don't really know what am I doing wrong here. I am pretty sure I did everything right but the Custom Items just does not work. I have the latest Knokko Core, the Latest Custom items, everything. It's showing me this error in the console:
Don't really know what to do with this, so I would greatly appreciate your help since you are the author of the plugin. I have 1.12 Server, have the Knokko Core for 1.14 ( But I think it works since the Knokko core is green when I type /pl ) Thanks!
> [19:43:24 ERROR]: Could not load 'plugins/Custom+Items+1.12.2.jar' in folder 'pl > ugins' > org.bukkit.plugin.InvalidPluginException: java.lang.NoClassDefFoundError: nl/kno > kko/util/bits/BitInput > at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.j > ava:131) ~[craftbukkit.jar:git-Bukkit-f46ccd7] > at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager. > java:326) ~[craftbukkit.jar:git-Bukkit-f46ccd7] > at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager > .java:248) [craftbukkit.jar:git-Bukkit-f46ccd7] > at org.bukkit.craftbukkit.v1_12_R1.CraftServer.loadPlugins(CraftServer.j > ava:304) [craftbukkit.jar:git-Bukkit-f46ccd7] > at net.minecraft.server.v1_12_R1.DedicatedServer.init(DedicatedServer.ja > va:188) [craftbukkit.jar:git-Bukkit-f46ccd7] > at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.jav > a:522) [craftbukkit.jar:git-Bukkit-f46ccd7] > at java.lang.Thread.run(Thread.java:748) [?:1.8.0_201] > Caused by: java.lang.NoClassDefFoundError: nl/knokko/util/bits/BitInput > at java.lang.Class.forName0(Native Method) ~[?:1.8.0_201] > at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_201] > at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.jav > a:40) ~[craftbukkit.jar:git-Bukkit-f46ccd7] > at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.j > ava:127) ~[craftbukkit.jar:git-Bukkit-f46ccd7] > ... 6 more > Caused by: java.lang.ClassNotFoundException: nl.knokko.util.bits.BitInput > at java.net.URLClassLoader.findClass(URLClassLoader.java:382) ~[?:1.8.0_ > 201] > at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader. > java:77) ~[craftbukkit.jar:git-Bukkit-f46ccd7] > at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader. > java:62) ~[craftbukkit.jar:git-Bukkit-f46ccd7] > at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_201] > at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_201] > at java.lang.Class.forName0(Native Method) ~[?:1.8.0_201] > at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_201] > at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.jav > a:40) ~[craftbukkit.jar:git-Bukkit-f46ccd7] > at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.j > ava:127) ~[craftbukkit.jar:git-Bukkit-f46ccd7] > ... 6 more
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Posted May 8, 2019In reply to Forge_User_22778490:
( I did everything right and followed the Editor guide too. Made my own resource pack with the resource of the Custom Item in it already, put it in the *server* resource pack. put the .cis file in new-made folder CustomItems, literally everything. I am lost )
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Posted May 8, 2019In reply to Forge_User_22778490:
The error you are getting suggests that you don't have Knokko Core (or it is not being loaded for some reason), so this is quite weird. Could you show me the entire console output? (From the moment you start the server until the error occurs)
And is knokko core listed when you do /plugins ?
All I can think of is that you are using the knokko core for the wrong minecraft version. (Knokko Core 1.12 7 is for minecraft 1.12 and Knokko Core 1.14 1 is fo rminecraft 1.14)
If you used the wrong one, that would explain the error.
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Posted May 8, 2019In reply to knokko:
Hello and thank you for your almost instant reply! So, I installed the Knokko Core 1.12 7 that you suggested but no difference. And yes, Knokko Core was listed in /plugins, even though I had the Knokko Core for 1.14. Still, don't know what am I doing wrong here.
Here is the full Console:
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Posted May 8, 2019In reply to Forge_User_22778490:
I think I know what is wrong and I uploaded a new jar file to https://github.com/knokko/Custom-Items/blob/master/Custom%20Items%201.12%20and%201.14%204.5.jar
(It would take like 12 more hours if I would post it here and wait for it to be improved.)
Could you test what happens if you use that jar file instead of the Custom Items you are using right now?
If even this one doesn't work, please zip your server folder (the one that contains the plugins folder) and mail it to knokogator@hotmail.com
Then I will try if to get the same error as you, but I think the new jar file will resolve it.
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Posted May 9, 2019In reply to knokko:
Hello! I am so thankful for your time and work you put into this. It finally works, and I am so happy to be completely honest! It worked flawlessly before and now it stopped working so I got worried since this plugin is actually insanely good. Thank you very much, keep it up, man! Looking up for your future plugins, if there is going to be any, since all of your plugins are SO GOOD for my RPG server!
- Thanks again, your fan, Toniczech!
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Posted May 9, 2019In reply to Forge_User_22778490:
In reply to Toniczech0512379:
By the way - I really cannot seem to find WOOD PLANKS as a recipe. Is it going to be added in the future? :)
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Posted May 9, 2019In reply to Forge_User_22778490:
The naming of the items is a little different from the naming in minecraft. Wooden planks are WOOD and wooden logs are LOG and LOG2.
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Posted May 9, 2019In reply to knokko:
Another question - Can I ask what does the "internal item damage" mean? Thought it was the Damage that the sword is going to do. Now I see a text up on the Editor and it says I have to put a modifier on it to put a type of damage that the sword going to do. I think that it should work differently... I want people on my server know how much damage does the "sword" do... It just says +3 even tho it does 4 damage... Kinda misunderstandable.
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Posted May 9, 2019In reply to Forge_User_22778490:
The internal item data is not related at all to the damage your item will deal. It is necessary to link custom items to custom textures in the resource pack. It is actually the damage the item has 'taken' (like in durability loss).
Minecraft resourcepacks allow items to have different textures based on how much damage it has taken and whether or not they are unbreakable. This plug-in 'abuses' this system by making all custom items unbreakable and setting the damage the item has taken. Since all custom items are unbreakable, the tools use my custom durability in the lore to serve as the practical durability since the real durability of the item is reserved for determining the texture it gets.
And about the +3: that behavior is just the normal minecraft behavior of tools. With your first, you do 1 damage and you do 3 damage extra because you also wield that weapon, which makes a total of 4 (normal weapons have the same behavior).
And I should thank you for pointing out the bug that prevented you from using the plug-in. This bug must have been present for a long time, but didn't manifest it on my computer. You will have saved a lot of future users from that some bug!
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Posted May 9, 2019In reply to knokko:
No problem! Really enjoying this plugin so I just couldn't move to another one without posting a ticket. By the way, can you add a SOUND to when the Item breaks? It just doesn't feel good when the Item just disappears out of your hand! Just a TIP!
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Posted May 9, 2019In reply to knokko:
By the way - Found another bug. I can't seem to stack the Items that are supposedly stackable in my inventory. I can stack them in a chest, or stack them in my inventory when the chest is opened. But no way I can stack them when I just press E. Thanks for every answer!
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Posted May 9, 2019In reply to Forge_User_22778490:
Sounds are indeed a good idea, I will look into that when I have more time.
Regarding the bug you mentioned, I am aware of this one. Unfortunately, this is not something I can solve. Luckily, this only happens in creative mode, not in survival mode. (As far as I know, only survival mode is important as players generally should be in survival mode.)
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Posted May 7, 2019is there a way to make this so you can do mob spawners? like for specific mobs such and zombie skeletons ect?