mirror of https://github.com/AxioDL/zeus.git
205 lines
5.6 KiB
C++
205 lines
5.6 KiB
C++
#pragma once
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#include "Global.hpp"
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#include "zeus/Math.hpp"
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#include "zeus/Math.hpp"
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#include <cassert>
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namespace zeus {
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class CVector2f {
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public:
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simd<float> mSimd;
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CVector2f() : mSimd(0.f) {}
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template <typename T>
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CVector2f(const simd<T>& s) : mSimd(s) {}
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#if ZE_ATHENA_TYPES
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CVector2f(const atVec2f& vec) : mSimd(vec.simd) {}
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operator atVec2f&() { return *reinterpret_cast<atVec2f*>(this); }
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operator const atVec2f&() const { return *reinterpret_cast<const atVec2f*>(this); }
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void readBig(athena::io::IStreamReader& input) {
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mSimd[0] = input.readFloatBig();
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mSimd[1] = input.readFloatBig();
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mSimd[2] = 0.0f;
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mSimd[3] = 0.0f;
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}
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static CVector2f ReadBig(athena::io::IStreamReader& input) {
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CVector2f ret;
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ret.readBig(input);
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return ret;
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}
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#endif
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explicit CVector2f(float xy) { splat(xy); }
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void assign(float x, float y) {
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mSimd[0] = x;
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mSimd[1] = y;
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mSimd[2] = 0.0f;
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mSimd[3] = 0.0f;
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}
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CVector2f(float x, float y) { assign(x, y); }
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bool operator==(const CVector2f& rhs) const { return mSimd[0] == rhs.mSimd[0] && mSimd[1] == rhs.mSimd[1]; }
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bool operator!=(const CVector2f& rhs) const { return mSimd[0] != rhs.mSimd[0] || mSimd[1] != rhs.mSimd[1]; }
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bool operator<(const CVector2f& rhs) const { return mSimd[0] < rhs.mSimd[0] && mSimd[1] < rhs.mSimd[1]; }
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bool operator<=(const CVector2f& rhs) const { return mSimd[0] <= rhs.mSimd[0] && mSimd[1] <= rhs.mSimd[1]; }
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bool operator>(const CVector2f& rhs) const { return mSimd[0] > rhs.mSimd[0] && mSimd[1] > rhs.mSimd[1]; }
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bool operator>=(const CVector2f& rhs) const { return mSimd[0] >= rhs.mSimd[0] && mSimd[1] >= rhs.mSimd[1]; }
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CVector2f operator+(const CVector2f& rhs) const { return mSimd + rhs.mSimd; }
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CVector2f operator-(const CVector2f& rhs) const { return mSimd - rhs.mSimd; }
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CVector2f operator-() const { return -mSimd; }
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CVector2f operator*(const CVector2f& rhs) const { return mSimd * rhs.mSimd; }
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CVector2f operator/(const CVector2f& rhs) const { return mSimd / rhs.mSimd; }
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CVector2f operator+(float val) const { return mSimd + simd<float>(val); }
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CVector2f operator-(float val) const { return mSimd - simd<float>(val); }
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CVector2f operator*(float val) const { return mSimd * simd<float>(val); }
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CVector2f operator/(float val) const {
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float ooval = 1.f / val;
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return mSimd * simd<float>(ooval);
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}
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const CVector2f& operator+=(const CVector2f& rhs) {
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mSimd += rhs.mSimd;
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return *this;
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}
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const CVector2f& operator-=(const CVector2f& rhs) {
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mSimd -= rhs.mSimd;
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return *this;
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}
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const CVector2f& operator*=(const CVector2f& rhs) {
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mSimd *= rhs.mSimd;
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return *this;
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}
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const CVector2f& operator/=(const CVector2f& rhs) {
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mSimd /= rhs.mSimd;
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return *this;
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}
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const CVector2f& operator+=(float rhs) {
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mSimd += simd<float>(rhs);
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return *this;
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}
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const CVector2f& operator-=(float rhs) {
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mSimd -= simd<float>(rhs);
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return *this;
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}
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const CVector2f& operator*=(float rhs) {
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mSimd *= simd<float>(rhs);
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return *this;
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}
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const CVector2f& operator/=(float rhs) {
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float oorhs = 1.f / rhs;
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mSimd /= simd<float>(oorhs);
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return *this;
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}
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void normalize() {
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float mag = magnitude();
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mag = 1.f / mag;
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*this *= CVector2f(mag);
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}
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CVector2f normalized() const {
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float mag = magnitude();
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mag = 1.f / mag;
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return *this * mag;
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}
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CVector2f perpendicularVector() const { return {-y(), x()}; }
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float cross(const CVector2f& rhs) const { return (x() * rhs.y()) - (y() * rhs.x()); }
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float dot(const CVector2f& rhs) const { return mSimd.dot2(rhs.mSimd); }
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float magSquared() const { return mSimd.dot2(mSimd); }
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float magnitude() const { return std::sqrt(magSquared()); }
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void zeroOut() { *this = CVector2f::skZero; }
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void splat(float xy) { mSimd = zeus::simd<float>(xy); }
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static float getAngleDiff(const CVector2f& a, const CVector2f& b);
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static CVector2f lerp(const CVector2f& a, const CVector2f& b, float t) {
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return zeus::simd<float>(1.f - t) * a.mSimd + b.mSimd * zeus::simd<float>(t);
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}
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static CVector2f nlerp(const CVector2f& a, const CVector2f& b, float t) { return lerp(a, b, t).normalized(); }
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static CVector2f slerp(const CVector2f& a, const CVector2f& b, float t);
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bool isNormalized() const { return std::fabs(1.f - magSquared()) < 0.01f; }
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bool canBeNormalized() const {
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if (std::isinf(x()) || std::isinf(y()))
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return false;
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return std::fabs(x()) >= FLT_EPSILON || std::fabs(y()) >= FLT_EPSILON;
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}
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bool isZero() const { return magSquared() <= FLT_EPSILON; }
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bool isEqu(const CVector2f& other, float epsilon = FLT_EPSILON) {
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const CVector2f diffVec = other - *this;
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return (diffVec.x() <= epsilon && diffVec.y() <= epsilon);
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}
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zeus::simd<float>::reference operator[](size_t idx) {
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assert(idx < 2);
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return mSimd[idx];
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}
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float operator[](size_t idx) const {
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assert(idx < 2);
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return mSimd[idx];
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}
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float x() const { return mSimd[0]; }
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float y() const { return mSimd[1]; }
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simd<float>::reference x() { return mSimd[0]; }
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simd<float>::reference y() { return mSimd[1]; }
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static const CVector2f skOne;
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static const CVector2f skNegOne;
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static const CVector2f skZero;
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};
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static inline CVector2f operator+(float lhs, const CVector2f& rhs) { return zeus::simd<float>(lhs) + rhs.mSimd; }
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static inline CVector2f operator-(float lhs, const CVector2f& rhs) { return zeus::simd<float>(lhs) - rhs.mSimd; }
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static inline CVector2f operator*(float lhs, const CVector2f& rhs) { return zeus::simd<float>(lhs) * rhs.mSimd; }
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static inline CVector2f operator/(float lhs, const CVector2f& rhs) { return zeus::simd<float>(lhs) / rhs.mSimd; }
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} // namespace zeus
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