Day 2 (Puzzle 2) - Rock, Paper, Scissor

Successfully finished the second puzzle. The parsing changed so that the second column is not my answer but the intended result. I just quickly changed the file parser to replace the intended result with the fitting answer so that I need not touch the evaluation function.

Moved the previous parsing to parse_file_v1() for archiving purposes.

rockpaperscissor/file/guide_list.py

@@ -3,6 +3,10 @@ from typing import List, Tuple
 
 
 class RPS:
+    WIN_SYM = "Z"
+    DRAW_SYM = "Y"
+    LOSS_SYM = "X"
+
     ROCK = "R"
     PAPER = "P"
     SCISSOR = "S"
@@ -47,6 +51,10 @@ class RockPaperScissorGuide:
 
     The score for a single round is the score for the shape you selected (1 for Rock, 2 for Paper, and 3 for Scissors)
     plus the score for the outcome of the round (0 if you lost, 3 if the round was a draw, and 6 if you won).
+
+    (Part 2 only)
+    The second column says how the round needs to end: X means you need to lose,
+    Y means you need to end the round in a draw, and Z means you need to win.
     """
 
     def __init__(self, path: str):
@@ -55,7 +63,7 @@ class RockPaperScissorGuide:
 
         self.file_path = path
 
-    def parse_file(self) -> List[Tuple[str, str]]:
+    def parse_file_v1(self) -> List[Tuple[str, str]]:
         strategy_guide = []
         with open(self.file_path, "r") as file:
             for line in file:
@@ -64,3 +72,38 @@ class RockPaperScissorGuide:
                 strategy_guide.append((RPS.RPS_SYM_TO_SHAPE[a], RPS.RPS_SYM_TO_SHAPE[b]))
 
         return strategy_guide
+
+    def parse_file(self) -> List[Tuple[str, str]]:
+        strategy_guide = []
+        with open(self.file_path, "r") as file:
+            for line in file:
+                line = line.replace("\n", "")
+                a, b = line.split(" ")
+
+                a = RPS.RPS_SYM_TO_SHAPE[a]
+
+                answer = None
+
+                if b == RPS.WIN_SYM:
+                    if a == RPS.ROCK:
+                        answer = RPS.PAPER
+                    elif a == RPS.PAPER:
+                        answer = RPS.SCISSOR
+                    elif a == RPS.SCISSOR:
+                        answer = RPS.ROCK
+                elif b == RPS.DRAW_SYM:
+                    answer = a
+                elif b == RPS.LOSS_SYM:
+                    if a == RPS.ROCK:
+                        answer = RPS.SCISSOR
+                    elif a == RPS.PAPER:
+                        answer = RPS.ROCK
+                    elif a == RPS.SCISSOR:
+                        answer = RPS.PAPER
+
+                if answer is None:
+                    raise ValueError("Something went wrong with answer determination!")
+
+                strategy_guide.append((a, answer))
+
+        return strategy_guide