internal inline f32 normalize_vec2(Vec2 point)
{
 return sqrt((point.x * point.x) + (point.y * point.y));
}

// requires point to be scaled to  0 <= T <= 1
// segmeent defined by S(t) = A + t(B - A)
internal b32 intersect_segment_2d(Vec2 a, Vec2 b)
{
 // TODO: ...
 return false;
}

internal inline s32 dot(Vec2 a, Vec2 b)
{
 return (a.x * b.x) + (a.y * b.y);
}

internal Vec2 multiply_vec2(Vec2 point, f32 scalar)
{
 Vec2 result;
 result.x = point.x * scalar;
 result.y = point.y * scalar;

 return result;
}


internal Vec2 normalize_vec2_position_to_screen(Vec2 pos, s32 width, s32 height)
{
 return Vec2(Clamp((pos.x + 1.0f) * 0.5f * width, 0, width - 1), Clamp((pos.y + 1.0f) * 0.5f * height, 0, width - 1));
}