Max Cahill
ba7a7b5500
fixed intersection tests with zero radius shapes (treated as points generally)
2022-12-08 13:36:29 +11:00
Max Cahill
84d4e39622
clarified position/halfsize for aabbs and provided conversion functions from xywh to pos/hs representation
...
closes #60
2022-10-24 15:18:28 +11:00
Max Cahill
05f86e2cc1
fixed wrong degenerate direction checked in intersect.line_line_collide
2022-03-29 17:56:02 +11:00
David Briscoe
0c193d7901
lint: Don't assign values that will never be used
...
No bugs here, but giving an initial value can hide cases where we fail
to set a value. Use an assert instead so we can see errors if we change
and break this code.
Except break_next which goes out of scope after it's assigned (I guess
it used to be outside the loop).
2022-03-03 10:17:35 -08:00
David Briscoe
5118cc42bb
lint: Fix mismatched arguments in circle_aabb
...
Fix bug where circle_aabb_overlap wouldn't have the same results as
aabb_circle_overlap.
b_hs was unused, but the function we call expects a_hs as the first
argument. Looks like this circle_aabb_overlap is just flipping
the arguments to aabb_circle_overlap (and for circle_aabb_collide), so
it should match arguments.
Not sure what hs means. Box size?
2022-03-03 10:17:35 -08:00
Max Cahill
c0847e1955
fixed intersect.bounce_off bouncing if the velocity was already going away from the normal
2022-01-20 17:37:40 +11:00
Max Cahill
5df717fe6d
used mathx for clamp01 in intersect
...
fixes #45
2021-11-23 10:25:09 +11:00
Westerbly Snaydley
271d079bbb
Fix intersect depending on exported mathx
2021-10-24 18:32:14 -05:00
Sheepolution
95269b3362
Fix parameter/argument name mismatch
2021-10-19 03:04:55 +02:00
Max Cahill
a61a8a8618
added reversed-order methods for intersect (some missing)
2021-07-23 14:34:47 +10:00
Max Cahill
f835dd6e66
vec2 api finalisation and testing, updating intersect to new api
2021-07-23 14:15:30 +10:00
Max Cahill
4cea23e2e8
reworked intersect.lua - accepting that continuous collision is out of scope, reworking docs
2021-07-20 16:20:15 +10:00
Max Cahill
fe135c533b
More pooled storage for intersect.lua
2021-06-29 14:43:55 +10:00
Max Cahill
af919da379
Fixed intersect.lua line functions not all working properly with un-exported batteries
2021-06-17 11:29:14 +10:00
Max Cahill
0bc9ccb17b
Merge branch 'feature/minmax-vector-ops-and-aabb-collisions'
2021-06-08 11:53:09 +10:00
Max Cahill
a92a0c0351
Reworked aabb vs point and circle methods
2021-06-08 11:51:18 +10:00
Max Cahill
2d06ec7b9c
[fixed] intersect.line_circle_overlap bug
2021-05-13 16:13:30 +10:00
Max Cahill
80c44f3436
[added] intersect.line_circle_overlap for checking boolean overlap circles vs lines
2021-05-13 12:24:45 +10:00
Max Cahill
af961ab2b8
[added] intersect.balance_from_mass which gets a normalised balance factor from two mass inputs, and treats <=0 or infinite or nil masses as static bodies
2021-05-11 15:47:48 +10:00
Aweptimum
b5d3707939
Added aabb_circle_collide routine, modify aabb_point_collide
...
If circle center within aabb, calls aabb_point collide. Then, adds to the msv the difference between the closest point on the aabb to the circle and the closest point on circle to closest point on the aabb.
It failed when the circle center was exactly on the aabb edges, so COLLIDE_EPS was added to the apo_normal in aabb_point_collide to force the point off the edge. As such, the "nudge" section was removed. This should definitely be reviewed.
2021-05-10 12:29:37 -04:00
Aweptimum
06ca04bde7
Added aabb_circle_overlap
...
When the distance between the circle's center and the closest point on the aabb is less than the circle radius, returns true.
2021-05-10 11:55:51 -04:00
Aweptimum
bfee65762e
Added helper function for aabb_circle routines
...
Clamps point coords to the dimensions of an aabb to get the nearest point on the aabb. Returns two integers to avoid garbage.
2021-05-10 11:55:00 -04:00
Aweptimum
9d1e563796
Added aabb_point_collide()
...
Pushes point out along minimum axis. Nudges it out with COLLIDE_EPS added to the msv.
2021-05-10 11:53:40 -04:00
Max Cahill
c840bd01a5
[added] more intersection/resolution helpers
2021-04-14 13:32:14 +10:00
Max Cahill
bfad0baba9
[added] experimental intersect.bounce_off (needs to be verified)
2021-04-13 15:39:36 +10:00
Max Cahill
ab0839430a
[fixed] broken intersect.circle_circle_collide result
2021-04-13 15:38:52 +10:00
Max Cahill
f6a2c9834f
[added] nearest_point_on_line
2020-04-16 17:17:53 +10:00
Max Cahill
02568f8f08
[modified] intersect.lua imports vec2 unconditionally rather than attempting to use the global
2020-04-07 13:51:13 +10:00
Max Cahill
c7d96461cf
[added] intersect.point_in_poly and required plumbing
2020-04-01 19:28:22 +11:00
Max Cahill
ad2fc71e7a
[fixed] non-global compatible
2020-03-15 21:22:22 +11:00
Max Cahill
2f470cf7c7
initial commit
2020-01-29 14:26:28 +11:00
