sligth change to day9

day9-2.py

@@ -66,7 +66,6 @@ def checkDist():
         two = posTail[z]
         tempa = one[1] - two[1]
         tempb = one[0] - two[0]
-        tempc = tempa + tempb
         tempd = tempa * tempb
         if one[0] == two[0]:
             if not(tempa == 1 or tempa == -1):
@@ -80,16 +79,16 @@ def checkDist():
                     posTail[z][0] += 1
                 elif tempb < 0:
                     posTail[z][0] -= 1
-        elif (tempc in [-1, 0, 1])  and tempb < 0 and tempd != -1:
+        elif (tempd in [-2, -4])  and tempb < 0:
             posTail[z][0] -= 1
             posTail[z][1] += 1
-        elif tempc in [3, 4]:
+        elif (tempd in [2, 4]) and tempb > 0:
             posTail[z][0] += 1
             posTail[z][1] += 1
-        elif (tempc in [-1, 0, 1])  and tempb > 0 and tempd != -1:
+        elif (tempd in [-2, -4])  and tempb > 0:
             posTail[z][0] += 1
             posTail[z][1] -= 1
-        elif tempc in [-4, -3]:
+        elif (tempd in [2, 4]) and tempb < 0:
             posTail[z][0] -= 1
             posTail[z][1] -= 1