| Age | Commit message (Collapse) | Author |
|---|
|
See 6ea78c53 in libix3 for more info, this replicates the change to
keep them in something resembling API parity.
|
|
I despise hiding pointer types in typedefs, it makes usage
less clear/obvious to the reader.
|
|
Previously one could say stop/ignore/continue.
There was no way to say stop and ignore, or stop but don't ignore.
Now there are basically two classes of returns, stop and continue,
and each of those have ignore/don't ignore sub-statuses. The naming
is changed to STOP vs. MORE and HIT vs. MISS for brevity:
typedef enum ix2_search_status_t {
IX2_SEARCH_STOP_MISS,
IX2_SEARCH_STOP_HIT,
IX2_SEARCH_MORE_MISS,
IX2_SEARCH_MORE_HIT
} ix2_search_status_t;
|
|
This basically amounts to adding a pad_reset() wrapper.
Also incorporated resets into the test, while fixing a stupid
bug there.
|
|
aabb_t is a dimensionless name, and I've started mixing 2D and 3D
paradigms in the same projects so it's time to include the number
of dimensions for the bounding box. bb2f_t is also more consistent
with the vector and matrix header naming schemes I've been using.
|
|
also use v2f_t everywhere for positions instead of
the occasional float x, float y.
|
|
ix2_insert_object
ix2_remove_object
ix2_move_object
becomes
ix2_object_new
ix2_object_free
ix2_object_move
to be more consistent with the other libraries intended to be used
with this.
|
|
Much like libstage nodes can now have their position set using relative
AABBs, it's convenient to have the same paradigm in libix2.
|
|
libix2 implements a simple spatial index of objects described by
2D axis-aligned bounding boxes (AABB).
It does so by internally utilizing a traditional quadtree data
structure.
At this time only simple AABB and point search queries are
supported, with a simple per-match callback interface.
It may make sense to in the future add support for indexing
other 2D shapes than AABBs, like circles.
It would also make senes to add more interesting search queries
like radial ranges and such.
The intended use is for broad-phase collision detection in
2D games.
|
