#56 aabb and sphere intersect functions

[Anonymous]

Originally created by: recp

AABB functions:

• [x] AABB vs AABB
• [x] AABB vs Point
• [x] AABB vs Sphere
• [x] AABB contains AABB

New features for sphere:

• [x] Sphere Transform, Merge (same as AABB helpers)
• [x] Sphere vs Sphere
• [ ] Sphere vs Point

I used glm_aabb_aabb for testing intersection, it could be glm_aabb_intersect or glm_aabb_intr but since for instance glm_aabb_point is used instead of glm_aabb_intersect_point same convention is also used for aabb.

Sphere Representation in cglm is vec4: [center.x, center.y, center.z, radii], functions will accept vec4 instead of two parameter for each sphere e.g . vec3 for center and float for radius. It is combined into vec4 in cglm.

If you have better idea or don't like this design please let me know.

[Anonymous]

Originally posted by: coveralls

Coverage decreased (-0.4%) to 13.209% when pulling 720b617ee06ff544695ef4241864b4045e4bb57f on sphere into af812e86ebc06aca69d27a058bcd6e5d4ec52923 on master.