mirror/batteries
1
0
Fork 0
mirror of https://github.com/1bardesign/batteries.git synced 2024-11-25 23:24:35 +00:00
Code Issues Packages Projects Releases Wiki Activity

Added aabb_circle_overlap

Browse Source 
When the distance between the circle's center and the closest point on the aabb is less than the circle radius, returns true.
This commit is contained in:
Aweptimum 2021-05-10 11:55:51 -04:00
parent bfee65762e
commit 06ca04bde7
1 changed files with 9 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
intersect.lua
View File

@ -428,6 +428,15 @@ local function aabb_clamp(pos, hs, v)
return _v_clamp.x, _v_clamp.y return _v_clamp.x, _v_clamp.y
end end
-- return true on overlap, false otherwise
local _a_b_closest = vec2:zero()
local _a_b_delta = vec2:zero() -- Delta vec for minimum distance between aabb and circle
function intersect.aabb_circle_overlap(apos, ahs, bpos, brad)
_a_b_closest:sset(aabb_clamp(apos, ahs, bpos))
_a_b_delta:vset(bpos):vsubi(_a_b_closest)
return _a_b_delta:dot(_a_b_delta) < (brad*brad) + COLLIDE_EPS -- Pythag theorem
end
--check if a point is in a polygon --check if a point is in a polygon
--point is the point to test --point is the point to test
--poly is a list of points in order --poly is a list of points in order