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The game data (art, characters, items, etc) are generated by the build pipeline, this is a set of scripts that you setup. It typically takes 30+ hours to build all the art as there are many things it has to do to get all the art ready for use in the game. Take a look at the guide How to set up the Build Pipeline for information on setting up the pipeline. For information on the layout of the database check out the Database Structure
Setting up a Patch Server
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Creating your own Buildings
There are two ways of adding buildings to Ryzom Core: dynamic (aka botobject) and static.
Creating your own Trees and Bushes
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For more information on making creatures, you can read Working with creature sheets
For information on using the chat_parameters for NPCs on the npc_bot object, look at the guide on Configuring NPC Chat Parameters
For information on configuring NPC group parameters, look at the guide on Configuring AI Group Parameters
Adding Items
You can add items by editing sheets, some info can be found in Working with sheets
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Creating Missions
Adding Single Player Quests
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The Ryzom Core Particle System is created using the Particle System Editor.
Ingame Browser
The functionality of the Ingame browser decomposed.