Jump to content
  • Advertisement


This topic is now archived and is closed to further replies.


Simp Engine Help!!!

This topic is 6190 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

If you intended to correct an error in the post then please contact us.

Recommended Posts

Hello all: Ok, so I have the Open GL Game Programming book, and it kicks!!! But does anyone know how I can modify the engine/game -- what is going on here? There are 14 cpp files!!! Do I gotta study ''em all? Anyone else facing this problem? Stuff I want to keep: MD2 model handling Collisions Stuff I want to add: Gun cam [chase camera] Custom levels!!! Sincerely I''ll be wading through this mess while checking for replies ... And when you''''re done, go shoot yourself ...

Share this post

Link to post
Share on other sites
Well, to answer your first question, you probably don''t have to study them all. Alot of the stuff in the SimpEngine is based on what we did throughout the book.

So, MD2 functionality is in md2.cpp and md2.h. I believe the MD2 class is derived from CEntity, which is derived from CObject, but that''s fine since if you''re just modifying the engine to your liking, you''ll want those classes anyway.

Collisions are handled by the objects. This is not necessarily the best way to do things, just as the SimpEngine is not necesssarily the best way to do things, but it''s "simple".

To add a chase camera, just take the current camera implementation and modify it to suit your needs (camera.cpp and camera.h). Maybe a chasecamera.cpp and chasecamera.h.

For custom levels, check world.cpp and world.h. I believe terrain.cpp and terrain.h represent the current world/level implementation.

This is all I can remember at the moment. When developing the SimpEngine, I tried to keep it as easily extensible as possible. Of course, you''re going to have to learn some parts and modify others to suit your needs, but the base framework is there and ready to go.


Share this post

Link to post
Share on other sites
Guest Anonymous Poster


Thanks for the feedback --

After studying the code I realized it''s not as bad as I thought --

and your reply helps me understand how it''s all put together --

the engine is not a ''mess'' (did I say that?!) it''s just that sometimes my brain is a mess ...!!

I''ve thought about what it would mean to modify the camera class -- could you restrict what it renders to a viewport? Say in the corner of the screen -- that would be ideal!!!


And when you''''re done, go shoot yourself ...

Share this post

Link to post
Share on other sites
I think it is possible to render something into a smaller window. I may be way wrong on this, but I think in order to do that you would need to setup 2 different cameras, and render one to the entire screen, the other camera you would render into a smaller area over the entire screen, for example, do the regular camera and display setup, then set up a different camera that is positioned where you want it to, then define a rectangle, then render into the rectangle for the second camera, now i may be really wrong on this, since i''ve never done this, but that''s the way i think you would do it. good luck.

Share this post

Link to post
Share on other sites

  • Advertisement

Important Information

By using GameDev.net, you agree to our community Guidelines, Terms of Use, and Privacy Policy.

We are the game development community.

Whether you are an indie, hobbyist, AAA developer, or just trying to learn, GameDev.net is the place for you to learn, share, and connect with the games industry. Learn more About Us or sign up!

Sign me up!