From b10141db0f63429111f6c82c85ccb921723b5b82 Mon Sep 17 00:00:00 2001 From: sanine Date: Fri, 25 Feb 2022 10:03:47 -0600 Subject: add square:divide() function --- city/geometry-test.lua | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) (limited to 'city/geometry-test.lua') diff --git a/city/geometry-test.lua b/city/geometry-test.lua index f85bec0..74ddb3a 100644 --- a/city/geometry-test.lua +++ b/city/geometry-test.lua @@ -93,3 +93,40 @@ test( end end ) + +test( + 'subdivide a square', + function() + local center = geom.point(2, 2) + local square = geom.square(center, 4) + + local children = square:divide() + assert( + #children == 4, + string.format( + 'incorrect number of children: %d', + #children + ) + ) + + local aa = children[1] + assert(aa.center.x == 1) + assert(aa.center.y == 1) + assert(aa.span == 2) + + local ba = children[2] + assert(ba.center.x == 3) + assert(ba.center.y == 1) + assert(ba.span == 2) + + local ab = children[3] + assert(ab.center.x == 1) + assert(ab.center.y == 3) + assert(ab.span == 2) + + local bb = children[4] + assert(bb.center.x == 3) + assert(bb.center.y == 3) + assert(bb.span == 2) + end +) -- cgit v1.2.1