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author | Andinus <andinus@nand.sh> | 2021-01-19 21:53:16 +0530 |
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committer | Andinus <andinus@nand.sh> | 2021-01-19 21:53:16 +0530 |
commit | a5c540608c469a2797262facb766e175b932f0e2 (patch) | |
tree | 1e0eb79678d66f5ba657c63003592029757aefe7 /lib/Neighbors.rakumod | |
parent | 5bb0f224483fbc1d57fd1c5a2f4a22dd7263ecd6 (diff) | |
download | octans-0.1.0.tar.gz |
Re-structure for CPAN upload, include a dictionary file v0.1.0
bin/octans calls lib/Octans/CLI.rakumod which has the MAIN subroutine.
Diffstat (limited to 'lib/Neighbors.rakumod')
-rw-r--r-- | lib/Neighbors.rakumod | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/lib/Neighbors.rakumod b/lib/Neighbors.rakumod deleted file mode 100644 index 41cb35d..0000000 --- a/lib/Neighbors.rakumod +++ /dev/null @@ -1,53 +0,0 @@ -unit module Neighbors; - -# neighbors returns the neighbors of given index. Neighbors are cached -# in @neighbors array. This way we don't have to compute them -# everytime neighbors subroutine is called for the same position. -sub neighbors ( - @puzzle, Int $y, Int $x --> List -) is export { - # @directions is holding a list of directions we can move in. It's - # used later for neighbors subroutine. - state List @directions = ( - # $y, $x - ( +1, +0 ), # bottom - ( -1, +0 ), # top - ( +0, +1 ), # left - ( +0, -1 ), # right - ); - - # @neighbors holds the neighbors of given position. - state Array @neighbors; - - if @puzzle[$y][$x] { - - # If we've already computed the neighbors then no need to do - # it again. - unless @neighbors[$y][$x] { - my Int $pos-x; - my Int $pos-y; - - # Starting from the intital position of $y, $x we move to - # each direction according to the values specified in - # @directions array. In this case we're just trying to - # move in 4 directions (top, bottom, left & right). - DIRECTION: for @directions -> $direction { - $pos-y = $y + $direction[0]; - $pos-x = $x + $direction[1]; - - # If movement in this direction is out of puzzle grid - # boundary then move on to next direction. - next DIRECTION unless @puzzle[$pos-y][$pos-x]; - - # If neighbors exist in this direction then add them - # to @neighbors[$y][$x] array. - push @neighbors[$y][$x], [$pos-y, $pos-x]; - } - } - } else { - # If it's out of boundary then return no neighbor. - @neighbors[$y][$x] = []; - } - - return @neighbors[$y][$x]; -} |