gofmt and fixed docs
Fixed doc refrince to R(0,0,0,0) in Rect.Intersect() to be a ZR and for it to return a ZR.
Also ran gofmt...
@@ -608,7 +608,7 @@ func (r Rect) Union(s Rect) Rect {
// Intersect returns the maximal Rect which is covered by both r and s. Rects r and s must be normalized.
//
-// If r and s don't overlap, this function returns R(0, 0, 0, 0).
+// If r and s don't overlap, this function returns a ZR.
func (r Rect) Intersect(s Rect) Rect {
t := R(
math.Max(r.Min.X, s.Min.X),
@@ -617,7 +617,7 @@ func (r Rect) Intersect(s Rect) Rect {
math.Min(r.Max.Y, s.Max.Y),
)
if t.Min.X >= t.Max.X || t.Min.Y >= t.Max.Y {
- return Rect{}
+ return ZR
}
return t
}
