L2jFrozen - Lineage 2 Interlude Source
Main Plaza => Guides => Topic started by: ruke on October 24, 2017, 04:17:12 PM
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Note: I wrote this guide for l2jserver, but it should work the same for Frozen. Let me know if you run into issues.
Hi, I just recently started working on L2J and while I was implementing a few custom features in the server I found the development workflow quite awful since I had to make quite a lot of steps to actually see my changes: change the code -> compile -> update files -> shutdown server -> start server -> login again -> see the changes in game.
So, I wanted a change, I only wanted to follow these steps: change code -> compile -> see changes in game. And luckily I was able to accomplish it.
What do you need?
- A working server
- The sources of the l2jserver/frozen (obviously)
Steps
1 - In your source folder, you need the gameserver/config and gameserver/data folders from YOUR WORKING SERVER. You can do this by copying the folders or create a symbolic link so any changes you made to those folders are reflected without having to copy/paste again.
(https://i.imgur.com/d1awF6t.png)
2 - Download DCEVM (light) for Java 8u144 (build 2) (https://github.com/dcevm/dcevm/releases/download/light-jdk8u144%2B2/DCEVM-8u144-installer.jar)
3 - Download HotswapAgent (https://github.com/HotswapProjects/HotswapAgent/releases/download/1.1.0-SNAPSHOT/hotswap-agent-1.1.0-SNAPSHOT.jar)
4 - Download JDK 8u144 (http://filehippo.com/es/download_java_development_kit/64/77057/)
5 - Install JDK 8
6 - Open a command line with administrator permissions:
(https://i.imgur.com/lNWdbDd.png)
7 - In your command line, go to the folder where you downloaded DCEVM (light) for Java 8u144 (build 2) and run it:
$ cd path/to/your/DCEVM (light) for Java 8u144 (build 2)
$ java -jar DCEVM-8u144-installer.jar
8 - Once the application opens, select your JDK 8 and click Install DCEVM as altjvm:
(https://i.imgur.com/LLO8W2u.png)
Perfect, almost done!
9 - Open your IDE, and go to the Run configurations
(https://i.imgur.com/gX2KeSc.png)
10 - Complete with the following:
Name: GameServer Hotswap
Main class: net.sf.l2j.gameserver.GameServer (if you cannot find it, try searching for gameServer.GamesServer)
VM Options: -XXaltjvm=dcevm -javaagent:PATH\TO\hotswap-agent.jar
JRE: Make sure you have selected JDK 1.8.0.144
(https://i.imgur.com/Ed3rkxg.png)
11 - Go to your gameServer.GameServer class, and make sure the logs line are commented:
(https://i.imgur.com/YL6rOAQ.png)
12 - Start your loginServer as usual.
13 - Go to your IDE, and run GameServer Hotswap (from step 10)
14 - Your server should be up, try login with a character.
15 - If you succeed, perfect, now the exciting part, let's make a tiny change. Go to java/net/sf/l2j/gameserver/clientpackets/EnterWorld.java class and add this line to runImpl method, in the line 108:
activeChar.sendMessage("Hello from HOTDEPLOY!");
16 - Save the file, and rebuild the project:
(https://i.imgur.com/zixj5Sm.png)
You should have a message that a class was updated.
Great, our change is already on, go to your server, login with a character and:
(https://i.imgur.com/YrmkZes.png)
Did you notice? no downtime!
Hope it helps. Happy to help if anyone cannot do it.
Have a good day.
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Wow!! Nice guide but this only work when you are in development because in a real server (Production) doesn't have any sense install all those programs. ;D
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Right, this is only for development ^^
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Right, this is only for development ^^
Thanks for share! ;)
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Nice work, i always accept guide from our community. ;)