mirror of
https://github.com/byteworksinc/ORCA-C.git
synced 2024-05-28 12:41:35 +00:00
986fe9a65b
The only actual behavior change is in Ackermann.cc, which previously reported incorrectly high recursion depths for some calculations.
46 lines
917 B
C++
46 lines
917 B
C++
/****************************************************************
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*
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* Spiral
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*
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* A simple graphics demo. Uses the shell STOP command from the
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* debug menu to stop the program early.
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*
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* by Mike Westerfield
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*
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* Copyright 1989
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* Byte Works, Inc.
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*
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****************************************************************/
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#pragma keep "Spiral"
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#pragma lint -1
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#include <quickdraw.h>
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#include <math.h>
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int main (void)
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{
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float r, theta, rot;
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int color = 1;
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Rect rect;
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GetPortRect(&rect);
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SetPenSize(3, 1);
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for (rot = 0.0002; rot < 0.0005; rot += 0.0001) {
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theta = 0.0;
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r = 40.0;
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MoveTo ((int) (cos (theta) * r * 3) + 160,
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(int) (sin (theta) * r) + 40);
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while (r > 0.0) {
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SetSolidPenPat (color);
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color ^= 3;
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theta += 3.1415926535 / 21.0 + rot;
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LineTo ((int) (cos (theta) * r * 3) + 160,
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(int) (sin (theta) * r) + 40);
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r -= 0.02;
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}
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}
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Out: ;
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}
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