Xcode

Xcode is growing on me. Especially Xcode 6 on Yosemite is looking fantastic. Qt Creator is a very capable editor, however I plan to make another effort to write a generator script for a “native” Doomsday Xcode project. A sensible goal would be to produce a Snowberry-free build using Qt 5.3.

Detour into scripting and log history

It has been a busy week without much time for Doomsday. Sometimes after a break it is easier to return to the project by looking at a completely different topic than what I was working on before. This allows one to ease into the code again in a more comfortable way.

The log history widget was among the first that I wrote on the new UI framework. Since then, I’ve added a handy utility class called TextDrawable for drawing and laying out UI text. It has nice features like automatic background threading if there is a large amount of text. However, LogWidget being quite old, I had implemented a separate multithreaded text rendering mechanism there. I decided to replace this with TextDrawable so there wouldn’t be unnecessary redundancy in the code base.

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A tale of model definition bug hunting

After updating all code that deals with DED Model definitions to use the new Record based storage, I was slightly disappointed — although not surprised — to see that loading up a resource pack and trying to use it would result in a crash.

This is a pattern that I’ve come to accept as the norm: after working on a set of significant changes, my initial design and plan are shown to be valid, but I have to spend a couple of hours tracking down bugs that, in the end, prove to be trivial. In other words, one can’t expect to write bug free code.

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Easier native access to Record

While working on the Record based definitions, I noticed that there is a clear redundancy in the get*() methods: they pop up in Record, Config, and now I also needed them in a utility class that manipulates model definition data stored in a Record.

The solution was to add a new class called RecordAccessor that contains nothing but these get*() methods. This new class can then be inherited into any other class that benefits from providing native access to a Record.

While RecordAccessor is currently specific to Record instances, it could still be generalized into an IAccessor class that queries values from an abstract source where values are addressed using paths — this would make it possible to use it also with PathTree.

Mobile Doomsday

Speaking of mobile Doomsday, having played around with Qt 5.3 on iOS and Android, I now have a bit more concrete picture of what Doomsday will look like as a mobile build.

Supporting mobile platforms is something I think is very much necessary for the future. I see desktop computing becoming more of a niche thing, as most people’s needs will be met by various forms of phones and tablets. Still, DOOM was born in the age of desktop PC gaming and Doomsday will naturally respect this; not only will we continue to develop the project on desktop (or laptop) computers, that is the environment the game was originally designed for.

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