I'm thinking about using Farseer inside my game (I'm not good in physics), which isn't a bad idea. However something happened while I was thinking about that, I found this tutorial:


which talks about how to use Farseer, expecially the first part shows how to create a good collision method with a static object (like ground!!!), which, partially answer to my old question:

2D Side Scrolling game and "walk over ground" collision detection

So, is a good idea to use a physics engine to create a "walkable" terrain in a game? (obviusly I will use it for jumps and other things too) Is it a bit exaggerated, I mean, does it creates performance issues if I use it for something like ground collision which happens all time (except when jumping) in a game?

If it's ok I've solved 2 questions with 1!

Thanks for suggestions.


No it will not create performance issues as long as the quantity of checks per frame are not too much for the engine to handle.

For a physics engine on a modern computer I don't think there would be any problems with anything less than 1000 collision tests a frame, depending on your physics engine you can have many more tests per frame.

  • \$\begingroup\$ NICE! Thank you very much I think I will use it widely... it's really nice \$\endgroup\$ – Francesco Belladonna Dec 9 '10 at 20:28

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