He suggested it as the obvious name for a game that was at that stage going to be all about playing chess with Lisp programs. To interact with the world around, the code running inside a robot is able to make system calls. These can make robots perform actions visible in the world around them, such as moving or attacking, or give back the robot information about that world. Move one hex in the given direction . Use energy units of energy.
More energy makes the scan more accurate.
Scan from direction start to direction finish . If count is negative then a maximum of -count will be returned, but robots on the same team will be ignored. The number actually found is returned, or -1 on error. The number found may be bigger than count, but no more than count pieces will be recorded in the address given. Use energy units of energy in the attack.