pc-ahead (pc-ahead-one-step)
Description:
Reports the color of the patch one space ahead in the direction that the turtle is facing. If called by the observer, it will assume coordinates of (0,0).
Notes:
if pc-ahead = blue [fd 1]
commands the caller to move forward 1 if the patch ahead of it is blue.
Related Commands:
patchcolor
pc-ahead-one-patch
pc-at
pc-towards