Langton's ant: Difference between revisions
Content added Content deleted
(→{{header|REXX}}: correct chirality and added cropping (to minimize white parts of the plane of cells). ----) |
(→{{header|REXX}}: changed output character (for the black color) to conform to others. ----) |
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| Line 1,746: | Line 1,746: | ||
if dir==0 then dir=4 /*ant should be facing "west". */ |
if dir==0 then dir=4 /*ant should be facing "west". */ |
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if dir==5 then dir=1 /*and should be facing "north". */ |
if dir==5 then dir=1 /*and should be facing "north". */ |
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select /*ant walks direction it's facing*/ |
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when dir==1 then y=y+1 /*walking north? Then go "up". */ |
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when dir==2 then x=x+1 /*walking east? Then go "right"*/ |
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when dir==3 then y=y-1 /*walking south? Then go "down".*/ |
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when dir==4 then x=x-1 /*walking west? Then go "left".*/ |
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end |
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end |
end |
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| Line 1,764: | Line 1,764: | ||
end /*above code crops left of array*/ |
end /*above code crops left of array*/ |
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do y=tb to bb by -1; |
do y=tb to bb by -1; _='' /*display a plane (row) of cells*/ |
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do x=minx to rb /*process a "row" of cells. */ |
do x=minx to rb /*process a "row" of cells. */ |
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_=_||@.x.y /*build a cell row for display. */ |
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end |
end |
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_=translate(_,'#',10) /*color the cells: black | white*/ |
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if |
if _\='' then say strip(_,'T') /*crop completely white lines. */ |
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end |
end |
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</lang> |
</lang> |
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Output |
Output |
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<pre style="height: |
<pre style="height:60ex;overflow:scroll"> |
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──────── Langton's ant walked 11759 steps. ──────── |
──────── Langton's ant walked 11759 steps. ──────── |
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</pre> |
</pre> |
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