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| Current File : //lib64/python2.7/Demo/curses/rain.py |
#! /usr/bin/env python
#
# $Id$
#
# somebody should probably check the randrange()s...
import curses
from random import randrange
def next_j(j):
if j == 0:
j = 4
else:
j -= 1
if curses.has_colors():
z = randrange(0, 3)
color = curses.color_pair(z)
if z:
color = color | curses.A_BOLD
stdscr.attrset(color)
return j
def main(win):
# we know that the first argument from curses.wrapper() is stdscr.
# Initialize it globally for convenience.
global stdscr
stdscr = win
if curses.has_colors():
bg = curses.COLOR_BLACK
curses.init_pair(1, curses.COLOR_BLUE, bg)
curses.init_pair(2, curses.COLOR_CYAN, bg)
curses.nl()
curses.noecho()
# XXX curs_set() always returns ERR
# curses.curs_set(0)
stdscr.timeout(0)
c = curses.COLS - 4
r = curses.LINES - 4
xpos = [0] * c
ypos = [0] * r
for j in range(4, -1, -1):
xpos[j] = randrange(0, c) + 2
ypos[j] = randrange(0, r) + 2
j = 0
while True:
x = randrange(0, c) + 2
y = randrange(0, r) + 2
stdscr.addch(y, x, ord('.'))
stdscr.addch(ypos[j], xpos[j], ord('o'))
j = next_j(j)
stdscr.addch(ypos[j], xpos[j], ord('O'))
j = next_j(j)
stdscr.addch( ypos[j] - 1, xpos[j], ord('-'))
stdscr.addstr(ypos[j], xpos[j] - 1, "|.|")
stdscr.addch( ypos[j] + 1, xpos[j], ord('-'))
j = next_j(j)
stdscr.addch( ypos[j] - 2, xpos[j], ord('-'))
stdscr.addstr(ypos[j] - 1, xpos[j] - 1, "/ \\")
stdscr.addstr(ypos[j], xpos[j] - 2, "| O |")
stdscr.addstr(ypos[j] + 1, xpos[j] - 1, "\\ /")
stdscr.addch( ypos[j] + 2, xpos[j], ord('-'))
j = next_j(j)
stdscr.addch( ypos[j] - 2, xpos[j], ord(' '))
stdscr.addstr(ypos[j] - 1, xpos[j] - 1, " ")
stdscr.addstr(ypos[j], xpos[j] - 2, " ")
stdscr.addstr(ypos[j] + 1, xpos[j] - 1, " ")
stdscr.addch( ypos[j] + 2, xpos[j], ord(' '))
xpos[j] = x
ypos[j] = y
ch = stdscr.getch()
if ch == ord('q') or ch == ord('Q'):
return
elif ch == ord('s'):
stdscr.nodelay(0)
elif ch == ord(' '):
stdscr.nodelay(1)
curses.napms(50)
curses.wrapper(main)