mirror of https://github.com/Chlumsky/msdfgen.git
36 lines
1.1 KiB
C++
36 lines
1.1 KiB
C++
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#include "SignedDistance.h"
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#include <cmath>
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#include "arithmetics.hpp"
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namespace msdfgen {
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const SignedDistance SignedDistance::INFINITE(-1e240, 1);
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SignedDistance::SignedDistance() : sqDistance(-1e240), dot(1) { }
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SignedDistance::SignedDistance(double sqDistance, double d) : sqDistance(sqDistance), dot(d) { }
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double SignedDistance::distance() const {
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return sign(sqDistance)*sqrt(fabs(sqDistance));
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}
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bool operator<(SignedDistance a, SignedDistance b) {
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return fabs(a.sqDistance) < fabs(b.sqDistance) || (fabs(a.sqDistance) == fabs(b.sqDistance) && a.dot < b.dot);
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}
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bool operator>(SignedDistance a, SignedDistance b) {
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return fabs(a.sqDistance) > fabs(b.sqDistance) || (fabs(a.sqDistance) == fabs(b.sqDistance) && a.dot > b.dot);
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}
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bool operator<=(SignedDistance a, SignedDistance b) {
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return fabs(a.sqDistance) < fabs(b.sqDistance) || (fabs(a.sqDistance) == fabs(b.sqDistance) && a.dot <= b.dot);
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}
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bool operator>=(SignedDistance a, SignedDistance b) {
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return fabs(a.sqDistance) > fabs(b.sqDistance) || (fabs(a.sqDistance) == fabs(b.sqDistance) && a.dot >= b.dot);
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}
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}
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