Irrlicht Engine

I'm all for free (as in freedom) software, but in the creation of an online game, what keeps someone from obtaining the source for the whole game, exploiting EXP rolls or weapon damage and ruining the spirit of the game? I understand that open source software should be available to the community to ...

Ok, So I've searched high and low in the forums, and I've gone through some example program's source code. My question is. How do you do map changes? Lets say you I created a large mmorpg. How would you transition between areas? Some sort of an event driven box in the map that called a function in t...