154 lines
3.3 KiB
C++
154 lines
3.3 KiB
C++
#pragma once
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class CVector : public RwV3d
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{
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public:
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CVector(void){}
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CVector(float x, float y, float z)
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{
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this->x = x;
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this->y = y;
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this->z = z;
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}
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CVector(const RwV3d &v)
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{
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x = v.x;
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y = v.y;
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z = v.z;
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}
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// (0,1,0) means no rotation. So get right vector and its atan
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__always_inline float Heading(void) const { return Atan2(-x, y); }
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__always_inline float Magnitude(void) const {
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#ifdef DC_SH4
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float w;
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vec3f_length(x, y, z, w);
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return w;
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#else
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return Sqrt(x*x + y*y + z*z);
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#endif
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}
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__always_inline float MagnitudeSqr(void) const {
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#ifdef DC_SH4
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return fipr_magnitude_sqr(x, y,z, 0.0f);
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#else
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return x*x + y*y + z*z;
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#endif
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}
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__always_inline float Magnitude2D(void) const { return Sqrt(x*x + y*y); }
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float MagnitudeSqr2D(void) const { return x*x + y*y; }
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void Normalise(void);
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__always_inline void Normalise2D(void) {
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float sq = MagnitudeSqr2D();
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float invsqrt = RecipSqrt(sq);
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x *= invsqrt;
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y *= invsqrt;
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}
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const CVector &operator+=(CVector const &right) {
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x += right.x;
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y += right.y;
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z += right.z;
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return *this;
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}
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const CVector &operator-=(CVector const &right) {
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x -= right.x;
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y -= right.y;
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z -= right.z;
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return *this;
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}
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const CVector &operator*=(float right) {
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x *= right;
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y *= right;
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z *= right;
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return *this;
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}
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const CVector &operator/=(float right) {
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right = Invert(right);
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x *= right;
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y *= right;
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z *= right;
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return *this;
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}
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CVector operator-() const {
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return CVector(-x, -y, -z);
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}
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const bool operator==(CVector const &right) {
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return x == right.x && y == right.y && z == right.z;
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}
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const bool operator!=(CVector const &right) {
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return x != right.x || y != right.y || z != right.z;
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}
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bool IsZero(void) const { return x == 0.0f && y == 0.0f && z == 0.0f; }
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};
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inline CVector operator+(const CVector &left, const CVector &right)
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{
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return CVector(left.x + right.x, left.y + right.y, left.z + right.z);
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}
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inline CVector operator-(const CVector &left, const CVector &right)
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{
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return CVector(left.x - right.x, left.y - right.y, left.z - right.z);
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}
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inline CVector operator*(const CVector &left, float right)
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{
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return CVector(left.x * right, left.y * right, left.z * right);
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}
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inline CVector operator*(float left, const CVector &right)
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{
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return CVector(left * right.x, left * right.y, left * right.z);
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}
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inline CVector operator/(const CVector &left, float right)
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{
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return CVector(left.x / right, left.y / right, left.z / right);
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}
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__always_inline float
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DotProduct(const CVector &v1, const CVector &v2)
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{
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#ifdef DC_SH4
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return fipr(v1.x, v1.y, v1.z, 0.0f, v2.x, v2.y, v2.z, 0.0f);
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#else
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return v1.x*v2.x + v1.y*v2.y + v1.z*v2.z;
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#endif
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}
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CVector CrossProduct(const CVector &v1, const CVector &v2);
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inline float
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Distance(const CVector &v1, const CVector &v2)
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{
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float w;
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#ifdef DC_SH4
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vec3f_distance(v1.x, v1.y, v1.z, v2.x, v2.y, v2.z, w);
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return w;
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#else
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return (v2 - v1).Magnitude();
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#endif
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}
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inline float
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Distance2D(const CVector &v1, const CVector &v2)
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{
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float x = v2.x - v1.x;
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float y = v2.y - v1.y;
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return Sqrt(x*x + y*y);
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}
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class CMatrix;
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CVector Multiply3x3(const CMatrix &mat, const CVector &vec);
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CVector Multiply3x3(const CVector &vec, const CMatrix &mat);
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CVector operator*(const CMatrix &mat, const CVector &vec); |