On Friday, 13 January 2017 at 16:56:43 UTC, WhatMeWorry wrote:
I'm converting some C++ and glm code to D and gl3n. And I'm
stumped at the following line.
GLboolean CheckCollision(BallObject &one, GameObject &two) //
AABB - Circle collision
{
// Get center point circle first
glm::vec2 center(one.Position + one.Radius);
. . .
}
one.Position is a vec2 (x and y) whereas Radius is a GLfloat
// my D code statement
vec2 center2 = one.position + one.radius; // D code with gl3n
returns Error: incompatible types for ((one.position) +
(one.radius)): 'Vector!(float, 2)' and 'float'
I agree with the D code. A vec and scalar can't be added
together. So why (or how) is the glm code working?
I looked at https://github.com/g-truc/glm project source, but
I'm not even sure where to start?
Thanks
If you're doing game dev stuff I'd highly recommend using/taking
a look at
https://github.com/d-gamedev-team/ and in particular using
https://github.com/d-gamedev-team/gfm/ as your math library.
It appears to support what you want
https://github.com/d-gamedev-team/gfm/blob/master/math/gfm/math/vector.d#L53-59
