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#include "egg/math/eggVector.h"
namespace EGG {
const Vector2f Vector2f::zero(0.0f, 0.0f);
const Vector2f Vector2f::ex(1.0f, 0.0f);
const Vector2f Vector2f::ey(0.0f, 1.0f);
const Vector3f Vector3f::zero(0.0f, 0.0f, 0.0f);
const Vector3f Vector3f::ex(1.0f, 0.0f, 0.0f);
const Vector3f Vector3f::ey(0.0f, 1.0f, 0.0f);
const Vector3f Vector3f::ez(0.0f, 0.0f, 1.0f);
const Vector3s Vector3s::zero(0, 0, 0);
const Vector3s Vector3s::ex(1, 0, 0);
const Vector3s Vector3s::ey(0, 1, 0);
const Vector3s Vector3s::ez(0, 0, 1);
f32 Vector3f::normalise() {
f32 len = length();
if (len > 0.0f) {
x *= 1.0f / len;
y *= 1.0f / len;
z *= 1.0f / len;
}
return len;
}
f32 Vector3f::setLength(const Vector3f &src, f32 len) {
const f32 mag = src.length();
if (mag <= FLT_EPSILON) {
z = 0.0f;
y = 0.0f;
x = 0.0f;
return 0.0f;
}
x = src.x * (len / mag);
y = src.y * (len / mag);
z = src.z * (len / mag);
return mag;
}
f32 Vector3f::setLength(f32 len) {
const f32 mag = length();
if (mag <= FLT_EPSILON) {
return 0.0f;
}
x *= len / mag;
y *= len / mag;
z *= len / mag;
return mag;
}
} // namespace EGG
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