12 lines
299 B
Lua
12 lines
299 B
Lua
-- ?
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w,h=getpicturesize();
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for y1=0,h-1,8 do
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for x1=0,w-1,8 do
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for y2=0,3,1 do
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for x2=0,7,1 do
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c1=getpicturepixel(x1+x2,y1+y2)
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c2=getpicturepixel(x1+7-x2,y1+7-y2)
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putpicturepixel(x1+x2,y1+y2,c2)
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putpicturepixel(x1+7-x2,y1+7-y2,c1)
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end;end;end;end
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