added more utils

1 files changed, 9 insertions, 0 deletions

diff --git a/utils/rectintersect.js b/utils/rectintersect.js
new file mode 100644
index 0000000..bd2c479
--- /dev/null
+++ b/utils/rectintersect.js
@@ -0,0 +1,9 @@
+// Provides rectIntersect, to determine if two rectangles intersect (and hide the code)
+
+module.exports = function(one, two){ // Rectangles defined by min/max pairs of y/x coords
+  if ( one[0][0] > two[1][0] ||
+       two[0][0] > one[1][0] ||
+       one[0][1] > two[1][1] ||
+       two[0][1] > two[1][1] ) return false;
+  return true;
+}