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38 lines
643 B
38 lines
643 B
#include "emath.h"
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// Trigonometrische Funktionen
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float deg2rad(float deg) {
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return (deg/180.0f)*3.1415926535897932384626433f;
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}
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float rad2deg(float rad) {
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return (rad/3.1415926535897932384626433f)*180.0f;
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}
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float ssin(float c) {
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int t=(int)c;
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if(t!=c)
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return sin(deg2rad(c));
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t = t % 360;
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if(t<0)
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t = 360 + t;
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switch(t) {
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case 0:
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return 0.0f;
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case 90:
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return 1.0f;
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case 180:
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return 0.0f;
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case 270:
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return -1.0f;
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default:
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// std::cout << "ssin sollte keinen defaultwert zurückliefern. c=" << c << ", t=" << t << std::endl;
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return sin(deg2rad(c));
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}
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}
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float scos(float c) {
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return ssin(c+90.0f);
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}
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