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Member Since 29 Jan 2000
Online Last Active Today, 11:45 AM

Posts I've Made

In Topic: Any Book Recomendations?

28 July 2016 - 05:45 PM

I'd recommend these books: 


-The Art of Game Design: A book of Lenses by Jesse Schell- This is a great book about how to look at game play and understand why its fun/engaging (not really programming)

-Game Coding Complete by Mike McShaffrey-This is another great book about what it takes to build a game and the fundamentals that go into it (more programming related, but at a high level)


Why are you waiting to learn a language?   A language is just a tool to express your ideas into something a machine understand.  Whoever advised you not learn other languages is wrong, for any reason.  If you can learn one language, it can make leaning others easier.  If your classes have some made up language for a test, knowing a real language can't hurt, it should be helpful especially if they're trying to teach fundamentals of computers.  


Go out and learn C# or Javascript and start experimenting in Unity right now.  It's free, there are great prebuilt assets to keep you moving forward, and it will let you focus on making your game fun vs getting bogged down in trying to  making a game.  It's a great way to get started and prevent stalling out.


BTW, you will never feel ready to start making a game.  There is always one more thing to learn.  Start now and build your experience base, even if it's not the perfect.





In Topic: Sharing object between 2 threads

29 June 2016 - 08:06 AM

It sounds like your main thread is running the simulation and your auxiliary thread is rendering the entities.  You can probably get away with reading the entity without locking if you make sure that you only read from it.  You need to look at it from a memory contention standpoint.  If you don't lock, you  run the risk of having part of the data change on you while you are reading from it.  It's up to you if that is a bad thing or not.


Double buffering the data may help prevent partial updates, but you need to prevent the buffers from being swapped while somebody is reading from it (again locking). 


You might want to consider your threading approach.  Having a separate render thread may not be the best thing in this case.  You might want to have the main thread do an update pass then a render pass but use a worker thread pool to achieve parallelism.  Instead of having a single "coarse grain" thread for rendering, use a bunch of work threads to get "fine grain" threading within a single phase.  


For example: In your main game loop, you update your game objects by passing them all off to worker threads to be done in parallel.  Then when they're all done, you go to the render phase.  In your render phase, you do entity visibility culling and build render commands per entity in a bunch of worker threads in parallel.  if you are able to encapsulate the render commands, you can build a list of them in the main thread and then pass the entire list off to a coarse grained rendering thread for execution while your main thread goes back to updating.  





In Topic: Object reference not set to an instance of an object

20 April 2016 - 01:24 PM

So the problem is that you are expecting the elements of the array to be there, but they're not.  You're only allocating the space for the elements in your array, you then need to put something there.  

PlanetDetails[] Planet = new PlanetDetails[10];
for(int i=0; i<10;i++)
  Planet[i]=new PlanetDetails();




In Topic: Thoughts on the Boost.Build system? (as opposed to CMake?)

14 April 2016 - 10:48 AM

I use CMake for work, but I've been using premake (https://premake.github.io/) for personal projects and have been slowly introducing it at work.  Premake uses Lua as it's configuration language.  I find it much easier to work with than CMake, especially when writing functions to do something complicated. 


To answer your original question: when I was looking for alternatives to CMake, I tried bjam, but didn't find it very user friendly.  I had used scons for a long time when working on Blender, so I knew that wasn't what I was looking for.  I stumbled onto premake and it just worked out really well for me.





In Topic: Engine RPM and wheel angular velocity

24 March 2016 - 02:07 PM




Thanks for the link, that's a good article.