Irrlicht Engine

well... i have already started writing my own FPS, but i need some useful tool to check what can be done in Irrlicht from user interface. a command line is something very helpful. for example if you want to test connection between two computers in your game, just open a console window and type eg.: ...

anyone knows how to start writing my own in-game console? i've tried to build it with the irrlicht interface but it won't work... i only know that a console need something called "parsing language". can you provide me with some external links? or please just tell me how to start thinking a...