Avoid global variables

05_Bagels/python/bagels.py

@@ -55,7 +55,7 @@ def pick_number():
     return num
 
 
-def get_valid_guess():
+def get_valid_guess(guesses):
     valid = False
     while not valid:
         guess = input(f"Guess # {guesses}     ? ")
@@ -135,7 +135,7 @@ def main():
         guessing = True
         while guessing:
 
-            guess = get_valid_guess()
+            guess = get_valid_guess(guesses)
 
             if guess == num_str:
                 print("You got it!!!\n")

77_Salvo/python/salvo.py

@@ -57,8 +57,6 @@ computer_board = []
 player_ship_coords = []
 computer_ship_coords = []
 
-# keep track of the turn
-current_turn = 0
 
 ####################################
 #
@@ -287,14 +285,12 @@ def generate_board():
     return board, ship_coords
 
 
-# execute_shot
-#
-# given a board and x, y coordinates,
-# execute a shot. returns True if the shot
-# is valid, False if not
-def execute_shot(turn, board, x, y):
-
-    global current_turn
+def execute_shot(turn, board, x, y, current_turn):
+    """
+    given a board and x, y coordinates,
+    execute a shot. returns True if the shot
+    is valid, False if not
+    """
     square = board[x - 1][y - 1]
     ship_hit = -1
     if square is not None and square >= 0 and square < len(SHIPS):
@@ -422,7 +418,7 @@ first_turn = PLAYER
 second_turn = COMPUTER
 
 
-def execute_turn(turn):
+def execute_turn(turn, current_turn):
 
     global num_computer_shots
     global num_player_shots
@@ -464,7 +460,7 @@ def execute_turn(turn):
 
     hits = []
     for shot in shots:
-        hit = execute_shot(turn, board, shot[0], shot[1])
+        hit = execute_shot(turn, board, shot[0], shot[1], current_turn)
         if hit >= 0:
             hits.append(hit)
         if turn == COMPUTER and print_computer_shots:
@@ -491,6 +487,9 @@ def execute_turn(turn):
 
 
 def main():
+    # keep track of the turn
+    current_turn = 0
+
     # initialize the player and computer
     # boards
     initialize_game()
@@ -512,10 +511,10 @@ def main():
         # print("player")
         # print_board(player_board)
 
-        if execute_turn(first_turn) == 0:
+        if execute_turn(first_turn, current_turn) == 0:
             game_over = True
             continue
-        if execute_turn(second_turn) == 0:
+        if execute_turn(second_turn, current_turn) == 0:
             game_over = True
             continue
 

79_Slalom/python/slalom.py

@@ -1,40 +1,10 @@
 from random import random
 
-print("Slalom".rjust(39))
-print("Creative Computing Morristown, New Jersey\n\n\n".rjust(57))
-
 medals = {
     "gold": 0,
     "silver": 0,
     "bronze": 0,
 }
-max_speeds = [
-    14,
-    18,
-    26,
-    29,
-    18,
-    25,
-    28,
-    32,
-    29,
-    20,
-    29,
-    29,
-    25,
-    21,
-    26,
-    29,
-    20,
-    21,
-    20,
-    18,
-    26,
-    25,
-    33,
-    31,
-    22,
-]
 
 
 def ask(question):
@@ -47,7 +17,7 @@ def ask_int(question):
     return int(reply) if reply.isnumeric() else -1
 
 
-def pre_run():
+def pre_run(gates, max_speeds):
     print('\nType "INS" for instructions')
     print('Type "MAX" for approximate maximum speeds')
     print('Type "RUN" for the beginning of the race')
@@ -80,7 +50,7 @@ def pre_run():
             cmd = ask(f'"{cmd}" is an illegal command--Retry')
 
 
-def run():
+def run(gates, lvl, max_speeds):
     global medals
     print("The starter counts down...5...4...3...2...1...Go!")
     time = 0
@@ -161,6 +131,37 @@ def run():
 
 
 def main():
+    print("Slalom".rjust(39))
+    print("Creative Computing Morristown, New Jersey\n\n\n".rjust(57))
+
+    max_speeds = [
+        14,
+        18,
+        26,
+        29,
+        18,
+        25,
+        28,
+        32,
+        29,
+        20,
+        29,
+        29,
+        25,
+        21,
+        26,
+        29,
+        20,
+        21,
+        20,
+        18,
+        26,
+        25,
+        33,
+        31,
+        22,
+    ]
+
     while True:
         gates = ask_int("How many gates does this course have (1 to 25)")
         if gates < 1:
@@ -170,7 +171,7 @@ def main():
                 print("25 is the limit.")
             break
 
-    pre_run()
+    pre_run(gates, max_speeds)
 
     while True:
         lvl = ask_int("Rate yourself as a skier, (1=Worst, 3=Best)")
@@ -180,7 +181,7 @@ def main():
             break
 
     while True:
-        run()
+        run(gates, lvl, max_speeds)
         while True:
             answer = ask("Do you want to play again?")
             if answer == "YES" or answer == "NO":