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44 lines
1.4 KiB
Python
44 lines
1.4 KiB
Python
#!/usr/bin/env python3
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# TRAIN
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#
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# Converted from BASIC to Python by Trevor Hobson
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import random
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def play_game():
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"""Play one round of the game"""
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car_speed = random.randint(40, 65)
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time_difference = random.randint(5, 20)
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train_speed = random.randint(20, 39)
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print("\nA car travelling", car_speed, "MPH can make a certain trip in")
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print(time_difference, "hours less than a train travelling at", train_speed, "MPH")
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time_answer = 0
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while time_answer == 0:
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try:
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time_answer = float(input("How long does the trip take by car "))
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except ValueError:
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print("Please enter a number.")
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car_time = time_difference * train_speed / (car_speed - train_speed)
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error_percent = int(abs((car_time - time_answer) * 100 / time_answer) + 0.5)
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if error_percent > 5:
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print("Sorry. You were off by", error_percent, "percent.")
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print("Correct answer is", round(car_time, 6), "hours")
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else:
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print("Good! Answer within", error_percent, "percent.")
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def main():
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print(" " * 33 + "TRAIN")
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print(" " * 15 + "CREATIVE COMPUTING MORRISTOWN, NEW JERSEY\n")
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print("Time - speed distance exercise")
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keep_playing = True
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while keep_playing:
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play_game()
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keep_playing = input("\nAnother problem (yes or no) ").lower().startswith("y")
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if __name__ == "__main__":
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main()
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