2018-10-06 20:39:40 -07:00
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#pragma once
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2015-08-25 15:04:15 -07:00
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2016-03-04 15:03:26 -08:00
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#include "zeus/CVector3f.hpp"
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#include "zeus/Math.hpp"
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2017-09-16 20:04:23 -07:00
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#include <cmath>
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2015-08-25 15:04:15 -07:00
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2018-12-07 17:16:50 -08:00
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namespace zeus {
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2015-08-25 15:04:15 -07:00
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/**
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2016-09-01 12:38:16 -07:00
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* @brief The CRelAngle class represents relative angle in radians
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2015-08-25 15:04:15 -07:00
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*/
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2018-12-07 17:16:50 -08:00
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struct CRelAngle {
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float angle = 0.f;
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static float MakeRelativeAngle(float angle) {
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float absAngle = std::fabs(angle);
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if (absAngle == 2.f * M_PIF)
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return std::copysign(absAngle, angle);
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float ret = absAngle - std::floor(absAngle / (2.f * M_PIF)) * (2.f * M_PIF);
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return std::copysign(ret, angle);
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}
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CRelAngle() = default;
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CRelAngle(float angle) : angle(MakeRelativeAngle(angle)) {}
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CRelAngle& operator=(float ang) {
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angle = MakeRelativeAngle(ang);
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return *this;
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}
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CRelAngle& operator=(const CRelAngle& ang) {
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angle = ang.angle;
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return *this;
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}
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float asDegrees() const { return radToDeg(angle); }
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float asRadians() const { return angle; }
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float arcCosine() const { return std::acos(angle); }
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static CRelAngle FromDegrees(float angle) {
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CRelAngle ret;
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ret.angle = MakeRelativeAngle(degToRad(angle));
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return ret;
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}
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operator float() const { return angle; }
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static CRelAngle FromRadians(float angle) { return CRelAngle(angle); }
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bool operator<(const CRelAngle& other) const { return angle < other.angle; }
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CRelAngle& operator+=(const CRelAngle& other) {
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angle = MakeRelativeAngle(angle + other.angle);
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return *this;
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}
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CRelAngle& operator+=(float r) {
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angle = MakeRelativeAngle(angle + r);
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return *this;
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}
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CRelAngle& operator-=(const CRelAngle& other) {
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angle = MakeRelativeAngle(angle - other.angle);
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return *this;
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}
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CRelAngle& operator-=(float r) {
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angle = MakeRelativeAngle(angle - r);
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return *this;
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}
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CRelAngle& operator*=(const CRelAngle& other) {
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angle = MakeRelativeAngle(angle * other.angle);
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return *this;
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}
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CRelAngle& operator*=(float r) {
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angle = MakeRelativeAngle(angle * r);
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return *this;
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}
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CRelAngle& operator/=(const CRelAngle& other) {
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angle = MakeRelativeAngle(angle / other.angle);
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return *this;
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}
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CRelAngle& operator/=(float r) {
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angle = MakeRelativeAngle(angle / r);
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return *this;
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}
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2015-08-25 15:04:15 -07:00
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};
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2018-12-07 21:23:50 -08:00
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} // namespace zeus
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