Add comments

1 files changed, 2 insertions, 0 deletions

diff --git a/tris/core.go b/tris/core.go
index d0164e2..dc80efe 100644
--- a/tris/core.go
+++ b/tris/core.go
@@ -9,10 +9,12 @@ type Point struct {
 	X, Y int
 }
 
+// Add adds two points together
 func (p Point) Add(q Point) Point {
 	return Point{X: p.X+q.X, Y: p.Y+q.Y}
 }
 
+// A piece contains a value per rotation
 type Piece [4]uint16
 
 // A table that represents each piece from https://tetris.fandom.com/wiki/SRS