MarcusD, you seem to have misread a portion of that paragraph.
Quote:
...the Diku gameplay provided inspiration for numerous MMORPGs, including EverQuest, World of Warcraft and Ultima Online.
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EQ was "inspired" by the "gameplay" of Diku MUD. It says absolutely nothing about using any code from them. It was also inspired by WoTMUD, as well as D&D ( the world was developed in a D&D campaign [
http://eq2.zam.com/story.html?story=17392 ] ), fairy tales, film and television, etc.
My understanding, however, is that the EQ codebase was put together from scratch, and the craziness of the client file formats rather tends to agree with that. lol. They built an early graphics engine with DirectX, as was often done at the time before there were companies dedicated to making game engines for others to use.
I remember waaaay back reading something about the Unreal engine of the 90s being utilized in some way, but haven't found anything to corroborate that over the years. Maybe it was another 'inspiration' situation.
While I assume they've moved to relational databases since they talked about it years back, they tended to use a lot of text files on the server side, because it saves them from having to worry about binary file format changes and database schema changes.
But, yeah, no reference to DikuMUD code being used in EverQuest. Its gameplay, and MUD gameplay in general, was an inspiration for the birth of video game RPG gameplay across the board.