From 85796c13486d6b436867d20ae93a1451100c4c83 Mon Sep 17 00:00:00 2001
From: Yongwei Xing <yongwei.xing@liulishuo.com>
Date: Fri, 26 Feb 2021 16:10:55 +0800
Subject: [PATCH] add comment

---
 generativeart.go | 2 ++
 go.mod           | 3 +++
 2 files changed, 5 insertions(+)
 create mode 100644 go.mod

diff --git a/generativeart.go b/generativeart.go
index 5c49d5a..b41ef09 100644
--- a/generativeart.go
+++ b/generativeart.go
@@ -19,6 +19,7 @@ type canva struct {
 	img           *image.RGBA
 }
 
+// NewCanva returns a canva.
 func NewCanva(h, w int, x, y float64) *canva {
 	return &canva{
 		height: h,
@@ -29,6 +30,7 @@ func NewCanva(h, w int, x, y float64) *canva {
 	}
 }
 
+// FillBackgroud fills the backgroud of the canva.
 func (c *canva) FillBackgroud(rgba color.RGBA) {
 	draw.Draw(c.img, c.img.Bounds(), &image.Uniform{rgba}, image.ZP, draw.Src)
 }
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..1acc32b
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module generativeart
+
+go 1.14