1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
# Glider guns used in this script are 'aligned', which means gliders start in the
# origin and go SE.
# Based on gun_demo.py from PLife (http://plife.sourceforge.net/).
from glife.base import *
from glife.gun24 import *
from glife.gun30 import *
from glife.gun46 import *
rule () # Life
def mirror_gun (glider_gun):
"""mirror an 'aligned' glider gun and preserve its timing"""
return glider_gun[2] (-1, 0, swap_xy)
def compose_lwss_gun (glider_gun, A = -1, B = -1, C = -1):
"""construct an lwss gun using 3 copies of an 'aligned' glider gun.
A, B and C are distances from the glider collision point to
NE, NW and SW guns respectively"""
if (A < 0): A = 40
if (B < 0): B = A;
if (C < 0): C = A;
m = min (A, B, C)
a = A - m
b = B - m
c = C - m
return \
glider_gun[4 * a] ( A, -A - 3, flip_x) + \
glider_gun[4 * b] (-B + 2, -B + 1) + \
glider_gun[4 * c + 1] (-C + 6, C, flip_y)
lwss_eater = eater (4, 2, swap_xy)
all = \
compose_lwss_gun (mirror_gun (gun24), 12, 11, 12) (0, -100) + lwss_eater (100, -100) + \
compose_lwss_gun (gun24, 11, 13, 4) + lwss_eater (100, 0) + \
compose_lwss_gun (gun30, 13, 11, 4) (0, 70) + lwss_eater (100, 70) + \
compose_lwss_gun (gun46, 22, 13, 3) (0, 130) + lwss_eater (100, 130)
all.display ("gun-demo")
|
