Made buffer's dot private

buffer.go

@@ -61,9 +61,9 @@ type Buffer struct {
 	
 	width  int
 	height int
-	Dot struct {
-		X int
-		Y int
+	dot struct {
+		x int
+		y int
 	}
 }
 
@@ -83,11 +83,11 @@ func (buffer *Buffer) Size () (width, height int) {
 	return
 }
 
-// ResetDot is a convenience method to reset the dot to the buffer origin point
-// (0, 0).
-func (buffer *Buffer) ResetDot () {
-	buffer.Dot.X = 0
-	buffer.Dot.Y = 0
+// SetDot sets the buffer's text insertion position relative to the buffer
+// origin point (0, 0).
+func (buffer *Buffer) SetDot (x, y int) {
+	buffer.dot.x = x
+	buffer.dot.y = y
 }
 
 // Cell returns the cell at the specified x and y coordinates. If the
@@ -142,9 +142,9 @@ func (buffer *Buffer) Write (bytes []byte) (bytesWritten int, err error) {
 	bytesWritten = len(bytes)
 	
 	for _, character := range text {
-		buffer.SetRune(buffer.Dot.X, buffer.Dot.Y, character)
-		buffer.Dot.X ++
-		if buffer.Dot.X > buffer.width { break }
+		buffer.SetRune(buffer.dot.x, buffer.dot.y, character)
+		buffer.dot.x ++
+		if buffer.dot.x > buffer.width { break }
 	}
 	
 	return

examples/color/main.go

@@ -47,8 +47,7 @@ func redraw () {
 	text := "RAINBOW :D"
 	width, height := application.Size()
 	
-	application.Dot.X = (width - len(text)) / 2
-	application.Dot.Y = height / 2
+	application.SetDot((width - len(text)) / 2, height / 2)
 	fmt.Fprintln(application, text)
 
 	application.SetColor(0, 0, stone.ColorYellow)

examples/hello/main.go

@@ -55,7 +55,7 @@ func main () {
 func redraw () {
 	currentTime = time.Now()
 
-	application.ResetDot()
+	application.SetDot(0, 0)
 	fmt.Fprintln(application, "hellorld!")
 
 	hour   := currentTime.Hour()