rasterize line in game

ok i am a bge python noob but i have been programing in python for about a year so heres my question i need to make a in game editor to place towers like in tower defense i was gona try to use rasterize line douse any one know how i would do this or how to do it better?

thanks mason

http://blenderartists.org/forum/showthread.php?t=171093
http://www.blender.org/documentation/249PythonDoc/GE/Rasterizer-module.html#drawLine

So you want to draw towers using the drawLine function? Why not just use the add object actuator?

well i was gona have it snap to the lines do you know if that can be done

can some one help me with this how would i code a tower defense tower placement script?