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Talk:Boids: Difference between revisions
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== Racket code ==
Why is the Racket code published off-site? Can we move it to the wiki or is it copyrighted? [[User:Fwend|Fwend]] ([[User talk:Fwend|talk]]) 23:33, 22 April 2016 (UTC)
== Task specification ==
Should the task define specific rules the birds follow, so implementations won't be too arbitrary? --[[User:Ledrug|Ledrug]] 18:40, 7 January 2013 (UTC)
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Huh. The output of that Racket implementation just crashes my browser about half a second in. It's been a while since I've come across such a total JS implementation bug. There ''might'' be a bug in the Racket code — I've not checked, to be honest — but the browser keeling over in response is really wrong. –[[User:Dkf|Donal Fellows]] ([[User talk:Dkf|talk]]) 12:31, 25 January 2014 (UTC)
: It worked find for me. Like you said, no matter what the Racked output does, the browser should not crash, so I think we should focus the blame on your browser for now (what is it, BTW?). --[[User:Ledrug|Ledrug]] ([[User talk:Ledrug|talk]]) 00:25, 26 January 2014 (UTC)
== Python code for cave generation ==
The board was generated by this simple Python code:
<lang python>from array import array
from math import hypot
nx = 85
ny = 16
background = '.'
foreground = '#'
mat = [array("c", background) * nx for _ in xrange(ny)]
def add_circle(mat, (cx, cy, r)):
for y in xrange(cy - r, cy + r + 1):
for x in xrange(cx - r, cx + r + 1):
if hypot(cx - x, cy - y) <= r:
if x >= 0 and x < len(mat[0]) and y >= 0 and y < len(mat):
mat[y][x] = foreground
for c in [(14, 2, 8), (nx / 2, ny / 2, 3), (nx - 17, ny - 2, 9)]:
add_circle(mat, c)
for row in mat:
print row.tostring()</lang>
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