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annotate src/vector.inl @ 62:d9520da6b801

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minor readme fix
author John Tsiombikas <nuclear@member.fsf.org>
date Mon, 28 Dec 2015 10:31:58 +0200
parents 51f115e337c2
children
rev   line source
nuclear@23 1 #include <math.h>
nuclear@23 2
nuclear@23 3 inline float Vector3::length()
nuclear@23 4 {
nuclear@23 5 return sqrt(x * x + y * y + z * z);
nuclear@23 6 }
nuclear@23 7
nuclear@23 8 inline float Vector3::lengthsq()
nuclear@23 9 {
nuclear@23 10 return x * x + y * y + z * z;
nuclear@23 11 }
nuclear@23 12
nuclear@23 13 inline Vector3 operator +(const Vector3 &a, const Vector3 &b)
nuclear@23 14 {
nuclear@23 15 return Vector3(a.x + b.x, a.y + b.y, a.z + b.z);
nuclear@23 16 }
nuclear@23 17
nuclear@23 18 inline Vector3 operator -(const Vector3 &a, const Vector3 &b)
nuclear@23 19 {
nuclear@23 20 return Vector3(a.x - b.x, a.y - b.y, a.z - b.z);
nuclear@23 21 }
nuclear@23 22
nuclear@23 23 inline Vector3 operator *(const Vector3 &a, const Vector3 &b)
nuclear@23 24 {
nuclear@23 25 return Vector3(a.x * b.x, a.y * b.y, a.z * b.z);
nuclear@23 26 }
nuclear@23 27
nuclear@23 28 inline Vector3 operator /(const Vector3 &a, const Vector3 &b)
nuclear@23 29 {
nuclear@23 30 return Vector3(a.x / b.x, a.y / b.y, a.z / b.z);
nuclear@23 31 }
nuclear@23 32
nuclear@23 33
nuclear@23 34 inline Vector3 operator -(const Vector3 &vec)
nuclear@23 35 {
nuclear@23 36 return Vector3(-vec.x, -vec.y, -vec.z);
nuclear@23 37 }
nuclear@23 38
nuclear@23 39 inline Vector3 operator *(const Vector3 &vec, float s)
nuclear@23 40 {
nuclear@23 41 return Vector3(vec.x * s, vec.y * s, vec.z * s);
nuclear@23 42 }
nuclear@23 43
nuclear@54 44 inline Vector3 operator /(const Vector3 &vec, float s)
nuclear@54 45 {
nuclear@54 46 return Vector3(vec.x / s, vec.y / s, vec.z / s);
nuclear@54 47 }
nuclear@23 48
nuclear@23 49 inline float dot(const Vector3 &a, const Vector3 &b)
nuclear@23 50 {
nuclear@23 51 return a.x * b.x + a.y * b.y + a.z * b.z;
nuclear@23 52 }
nuclear@23 53
nuclear@23 54 inline Vector3 cross(const Vector3 &a, const Vector3 &b)
nuclear@23 55 {
nuclear@23 56 return Vector3(a.y * b.z - a.z * b.y, a.z * b.x - a.x * b.z, a.x * b.y - a.y * b.x);
nuclear@23 57 }
nuclear@54 58
nuclear@54 59 inline Vector3 reflect(const Vector3 &v, const Vector3 &n)
nuclear@54 60 {
nuclear@54 61 return n * (2.0 * dot(v, n)) - v;
nuclear@54 62 }