Rock paper scissor game

RockPaperScissors

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+import random
+
+
+class RockPaperScissors:
+    def __init__(self):
+        self.user1 = ""
+        self.user1_score = 0
+        self.user2 = ""
+        self.user2_score = 0
+        self.rounds = 5
+
+    def my_new_user(self):
+        """
+        Create 2 users with default 5 rounds.
+        Optionally allow changing the number of rounds.
+        """
+        self.user1, self.user2 = input("Enter Username-").split()
+
+        change = (
+            input(
+                "Rock Paper Scissor starting...\n"
+                "5 rounds are going to be played. Want to change [y/n] - "
+            )
+            .strip()
+            .lower()
+        )
+
+        if change not in ["y", "n"]:
+            raise ValueError("Invalid decision")
+
+        if change == "y":
+            rounds = int(input("Enter number of rounds you want to play- ").strip())
+            if isinstance(rounds, int):
+                if rounds < 1:
+                    raise ValueError("Rounds can't be smaller than 1")
+                self.rounds = rounds
+            else:
+                raise ValueError("Invalid round number")
+
+    def my_action(self):
+        """Generate random action from Rock, Paper, Scissor."""
+        return random.choice(["Rock", "Paper", "Scissor"])
+
+    def increase_score(self, user):
+        """Increase score for the given user (user1 or user2)."""
+        if user == "user1":
+            self.user1_score += 1
+        else:
+            self.user2_score += 1
+
+    def evaluate(self, user1_action, user2_action, round_no):
+        """
+        Evaluate round result based on actions and
+        update the scores accordingly.
+        """
+        print(f"\n**** Round {round_no} starts ****")
+        print(f"{self.user1} move {user1_action}," f"{self.user2} move {user2_action}")
+
+        if user1_action == user2_action:
+            self.increase_score("user1")
+            self.increase_score("user2")
+            round_won = "is tied"
+        else:
+            if user1_action == "Rock":
+                if user2_action == "Paper":
+                    res = "user2"
+                    round_won = f"won by {self.user2}"
+                else:
+                    res = "user1"
+                    round_won = f"won by {self.user1}"
+
+            elif user1_action == "Paper":
+                if user2_action == "Scissor":
+                    res = "user2"
+                    round_won = f"won by {self.user2}"
+                else:
+                    res = "user1"
+                    round_won = f"won by {self.user1}"
+
+            else:
+                if user2_action == "Rock":
+                    res = "user2"
+                    round_won = f"won by {self.user2}"
+                else:
+                    res = "user1"
+                    round_won = f"won by {self.user1}"
+
+            self.increase_score(res)
+
+        print(
+            f"This round {round_won}, score: "
+            f"{self.user1} {self.user1_score} -"
+            f" {self.user2} {self.user2_score}"
+        )
+
+    def serve_final_result(self):
+        """Display final result after all rounds are completed."""
+
+        print("\n**** Final Result ****")
+        if self.user1_score > self.user2_score:
+
+            print(
+                f"{self.user1} won this game with score "
+                f"{self.user1_score} - {self.user2_score}"
+            )
+
+        elif self.user1_score < self.user2_score:
+
+            print(
+                f"{self.user2} won this game with score "
+                f"{self.user2_score} - {self.user1_score}"
+            )
+
+        else:
+
+            print(
+                f"This Game ties with score " f"{self.user1_score} - {self.user2_score}"
+            )
+
+
+try:
+    game_instance = RockPaperScissors()
+    game_instance.my_new_user()
+    for i in range(1, game_instance.rounds + 1):
+        user1_action = game_instance.my_action()
+        user2_action = game_instance.my_action()
+        game_instance.evaluate(user1_action, user2_action, i)
+
+    game_instance.serve_final_result()
+except Exception as e:
+    print(f"Error: {e}")