hilbert/Python/draw_hilbertgenerator

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#!/usr/bin/python3
import curses
import time
from hilbertgenerator import Vector, hilbertgenerator
win = curses.initscr()
curses.curs_set(0)
n = 16
state = [ [0] * 2*n for x in range(2*n) ]
lastpos = None
# 0123456789abcdef
linechars = "·─│┌──┐┬│└│├┘┴┤┼"
for pos in hilbertgenerator(Vector(n, n), Vector(n, 0), Vector(0,n)):
if lastpos is not None:
dir = pos - lastpos
state[int(lastpos.y)][int(lastpos.x)] |= (
(dir.x > 0) * 1 |
(dir.y > 0) * 2 |
(dir.x < 0) * 4 |
(dir.y < 0) * 8
)
state[int(pos.y)][int(pos.x)] |= (
(dir.x < 0) * 1 |
(dir.y < 0) * 2 |
(dir.x > 0) * 4 |
(dir.y > 0) * 8
)
win.addch(int(lastpos.y), int(lastpos.x), linechars[state[int(lastpos.y)][int(lastpos.x)]])
win.refresh()
time.sleep(0.1)
win.addch(int(pos.y), int(pos.x),
linechars[state[int(pos.y)][int(pos.x)]])
win.refresh()
time.sleep(0.1)
lastpos = pos
time.sleep(5)
curses.endwin()