1al_fixsin(3) al_fixsin(3)
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6 al_fixsin - Allegro 5 API
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9 #include <allegro5/allegro.h>
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11 al_fixed al_fixsin(al_fixed x);
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14 This function finds the sine of a value using a lookup table. The in‐
15 put value must be a fixed point binary angle.
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17 Example:
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19 al_fixed angle;
20 int result;
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22 /* Set the binary angle to 90 degrees. */
23 angle = al_itofix(64);
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25 /* The sine of 90 degrees is one. */
26 result = al_fixtoi(al_fixsin(angle));
27 assert(result == 1);
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30 Returns the sine of a fixed point binary format angle as a fixed point
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35Allegro reference manual al_fixsin(3)