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jahtzee/Representing rotatable two-dimensional structures with 1d arrays

Last active April 27, 2020 12:58
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Representing rotatable two-dimensional structures with 1d arrays
Representing rotatable two-dimensional structures with 1d arrays
x
0 1 2 3
_ _ _ _ _ _
0|0 1 2 3
y 1|4 5 6 7
2|8 9 10 11
3|12 13 14 15
i = index
w = width
0°) i=wy + x
90°) i=w(w-1) + y - wx
180°) i= w^2 - 1 - wy - x
270°) i= w - 1 - y +wx
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