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https://github.com/coding-horror/basic-computer-games.git
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c500424956
print_with_tab / print_with_whitespace is trivial with Python string formatting and was mostly used in only 2 lines.
65 lines
2.1 KiB
Python
Executable File
65 lines
2.1 KiB
Python
Executable File
#!/usr/bin/env python3
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# This data is meant to be read-only, so we are storing it in a tuple
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import json
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with open("data.json") as f:
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DATA = tuple(json.load(f))
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def print_intro() -> None:
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print(" " * 33 + "BUNNY")
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print(" " * 15 + "CREATIVE COMPUTING MORRISTOWN, NEW JERSEY")
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print("\n\n")
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def main() -> None:
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print_intro()
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# Using an iterator will give us a similar interface to BASIC's READ
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# command. Instead of READ, we will call 'next(data)' to fetch the next element.
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data = iter(DATA)
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# Read the first 5 numbers. These correspond to letters of the alphabet.
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# B=2, U=21, N=14, N=14, Y=25
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# Usually, list comprehensions are good for transforming each element in a sequence.
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# In this case, we are using range to repeat the call to next(data) 5 times. The underscore (_)
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# indicates that the values from range are discarded.
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bunny = [next(data) for _ in range(5)]
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L = 64
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# Interpretting a stream of data is a very common software task. We've already intepretted
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# the first 5 numbers as letters of the alphabet (with A being 1). Now, we are going to
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# combine this with a different interpretation of the following data to draw on the screen.
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# The drawing data is essentially a series of horizontal line segments given as begin and end
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# offsets.
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while True:
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command = next(data)
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if command < 0:
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print()
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continue
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if command > 128:
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break
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# If we've reached this portion of the code, 'command' indicates the 'start'
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# position of a line segment.
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start = command
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# Position cursor at start
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print(" " * start, end="")
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# The following number, indicates the end of the segment.
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end = next(data)
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# Unlike FOR I=X TO Y, the 'stop' argument of 'range' is non-inclusive, so we must add 1
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for i in range(start, end + 1, 1):
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# Cycle through the letters in "BUNNY" as we draw line
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j = i - 5 * int(i / 5)
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print(chr(L + bunny[j]), end="")
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if __name__ == "__main__":
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main()
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