40 lines
843 B
Python
40 lines
843 B
Python
with open("input") as f:
|
|
content = [x.strip() for x in f]
|
|
|
|
cos = {90: 0, 180: -1, 270: -0}
|
|
sin = {90: 1, 180: 0, 270: -1}
|
|
wns = 1
|
|
wew = 10
|
|
ns = 0
|
|
ew = 0
|
|
|
|
for ins in content:
|
|
rotation = 0
|
|
cmd = ins[0]
|
|
number = int(ins[1:])
|
|
|
|
if cmd == "N":
|
|
wns += number
|
|
if cmd == "S":
|
|
wns -= number
|
|
if cmd == "E":
|
|
wew += number
|
|
if cmd == "W":
|
|
wew -= number
|
|
# x' = x * cosx + y * sinx
|
|
# y' = -x * sinx + y * cosx
|
|
if cmd == "L":
|
|
rotation = 360 - number
|
|
if cmd == "R":
|
|
rotation = number
|
|
if cmd == "F":
|
|
ns += (wns*number)
|
|
ew += (wew*number)
|
|
if rotation:
|
|
newew = (wew * cos[rotation]) + (wns * sin[rotation])
|
|
newns = (-wew * sin[rotation]) + (wns * cos[rotation])
|
|
wew = newew
|
|
wns = newns
|
|
|
|
print(abs(ew) + abs(ns))
|