From 7d4a2485aa7be00b242f9fb2d061b2551dfcb35c Mon Sep 17 00:00:00 2001
From: Stephen McQuay <stephen@mcquay.me>
Date: Tue, 7 Jan 2014 21:21:43 -0800
Subject: [PATCH] minor docs, and namechange

---
 vectorpoint.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/vectorpoint.go b/vectorpoint.go
index 92b54e0..fbe2cee 100644
--- a/vectorpoint.go
+++ b/vectorpoint.go
@@ -4,6 +4,7 @@ import (
 	"math"
 )
 
+// A and B represent two opposite corners of axis-aligned boundin box
 type AABB2d struct {
 	A Point2d `json:A`
 	B Point2d `json:B`
@@ -93,7 +94,8 @@ func PointInRect(p Point2d, r AABB2d) bool {
 	return (p.X > r.A.X) && (p.X < r.B.X) && (p.Y > r.A.Y) && (p.Y < r.B.Y)
 }
 
-func RectFromPoint(p Point2d, size float32) AABB2d {
+func AASquareAtPoint(p Point2d, edgeLength float32) AABB2d {
+	size := edgeLength / 2.0
 	return AABB2d{
 		A: Point2d{X: p.X - size, Y: p.Y - size},
 		B: Point2d{X: p.X + size, Y: p.Y + size}}