mirror of
https://github.com/coding-horror/basic-computer-games.git
synced 2025-12-12 15:50:20 -08:00
71 lines
2.3 KiB
Python
Executable File
71 lines
2.3 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
|
|
|
|
# This data is meant to be read-only, so we are storing it in a tuple
|
|
import json
|
|
|
|
with open("data.json") as f:
|
|
DATA = tuple(json.load(f))
|
|
|
|
|
|
def display_intro() -> None:
|
|
print(tab(33) + "BUNNY")
|
|
print(tab(15) + "CREATIVE COMPUTING MORRISTOWN, NEW JERSEY")
|
|
print("\n\n")
|
|
|
|
|
|
def tab(column: int) -> str:
|
|
"""Emulates the TAB command in BASIC. Returns a string with ASCII
|
|
codes for setting the cursor to the specified column."""
|
|
return f"\r\33[{column}C"
|
|
|
|
|
|
def play() -> None:
|
|
display_intro()
|
|
|
|
# Using an iterator will give us a similar interface to BASIC's READ
|
|
# command. Instead of READ, we will call 'next(data)' to fetch the next element.
|
|
data = iter(DATA)
|
|
|
|
# Read the first 5 numbers. These correspond to letters of the alphabet.
|
|
# B=2, U=21, N=14, N=14, Y=25
|
|
|
|
# Usually, list comprehensions are good for transforming each element in a sequence.
|
|
# In this case, we are using range to repeat the call to next(data) 5 times. The underscore (_)
|
|
# indicates that the values from range are discarded.
|
|
bunny = [next(data) for _ in range(5)]
|
|
L = 64
|
|
|
|
# Interpretting a stream of data is a very common software task. We've already intepretted
|
|
# the first 5 numbers as letters of the alphabet (with A being 1). Now, we are going to
|
|
# combine this with a different interpretation of the following data to draw on the screen.
|
|
# The drawing data is essentially a series of horizontal line segments given as begin and end
|
|
# offsets.
|
|
while True:
|
|
command = next(data)
|
|
|
|
if command < 0:
|
|
print()
|
|
continue
|
|
|
|
if command > 128:
|
|
break
|
|
|
|
# If we've reached this portion of the code, 'command' indicates the 'start'
|
|
# position of a line segment.
|
|
start = command
|
|
# Position cursor at start
|
|
print(tab(start), end="")
|
|
|
|
# The following number, indicates the end of the segment.
|
|
end = next(data)
|
|
# Unlike FOR I=X TO Y, the 'stop' argument of 'range' is non-inclusive, so we must add 1
|
|
for i in range(start, end + 1, 1):
|
|
# Cycle through the letters in "BUNNY" as we draw line
|
|
j = i - 5 * int(i / 5)
|
|
print(chr(L + bunny[j]), end="")
|
|
|
|
|
|
if __name__ == "__main__":
|
|
play()
|