Fix more linter warnings

area.go

@@ -18,15 +18,18 @@ type Area struct {
 // NewArea returns a new Area.
 func NewArea() Area {
 	return Area{
-		writer: os.Stdout,
-		cursor: cursor,
+		height:     0,
+		writer:     os.Stdout,
+		cursor:     cursor,
+		cursorPosY: 0,
 	}
 }
 
-// WithWriter sets the custom writer
+// WithWriter sets the custom writer.
 func (area Area) WithWriter(writer Writer) Area {
 	area.writer = writer
 	area.cursor = area.cursor.WithWriter(writer)
+
 	return area
 }
 
@@ -36,6 +39,7 @@ func (area *Area) Clear() {
 	if area.writer == nil {
 		area.writer = os.Stdout
 	}
+
 	if area.height > 0 {
 		area.Bottom()
 		area.ClearLinesUp(area.height)
@@ -59,6 +63,7 @@ func (area *Area) Up(n int) {
 		if area.cursorPosY+n > area.height {
 			n = area.height - area.cursorPosY - 1
 		}
+
 		area.cursor.Up(n)
 		area.cursorPosY += n
 	}
@@ -70,6 +75,7 @@ func (area *Area) Down(n int) {
 		if area.height-area.cursorPosY-n < 0 {
 			n = area.height - area.cursorPosY
 		}
+
 		area.cursor.Down(n)
 		area.cursorPosY -= n
 	}

cursor.go

@@ -14,7 +14,7 @@ type Cursor struct {
 	writer Writer
 }
 
-// NewCursor creates a new Cursor instance writing to os.Stdout
+// NewCursor creates a new Cursor instance writing to os.Stdout.
 func NewCursor() *Cursor {
 	return &Cursor{writer: os.Stdout}
 }
@@ -25,6 +25,7 @@ func (c *Cursor) WithWriter(w Writer) *Cursor {
 	if w != nil {
 		c.writer = w
 	}
+
 	return c
 }
 

cursor_test.go

@@ -9,20 +9,22 @@ func TestHeightChanges(t *testing.T) {
 	for i := 0; i < 4; i++ {
 		fmt.Println()
 	}
-
 	Up(3)
+
 	if autoheight != 3 {
 		t.Errorf("height should be 3 but is %d", autoheight)
 	}
 
 	Down(3)
+
 	if autoheight != 0 {
 		t.Errorf("height should be 0 but is %d", autoheight)
 	}
 }
 
 func TestHeightCannotBeNegative(t *testing.T) {
 	Down(10)
+
 	if autoheight < 0 {
 		t.Errorf("height is negative: %d", autoheight)
 	}

utils.go

@@ -19,7 +19,7 @@ type Writer interface {
 }
 
 // SetTarget sets to output target of the default curser to the
-// provided cursor.Writer (wrapping io.Writer)
+// provided cursor.Writer (wrapping io.Writer).
 func SetTarget(w Writer) {
 	cursor = cursor.WithWriter(w)
 }
@@ -33,6 +33,7 @@ func Up(n int) {
 // Down moves the cursor n lines down relative to the current position.
 func Down(n int) {
 	cursor.Down(n)
+
 	if autoheight > 0 {
 		autoheight -= n
 	}
@@ -84,6 +85,7 @@ func Bottom() {
 	if autoheight > 0 {
 		Down(autoheight)
 		StartOfLine()
+
 		autoheight = 0
 	}
 }