microbitmatrix: refactor to eliminate duplicate code with microbit v1/v2

Signed-off-by: deadprogram <ron@hybridgroup.com>

microbitmatrix/microbitmatrix-v2.go

@@ -7,7 +7,6 @@
 package microbitmatrix // import "tinygo.org/x/drivers/microbitmatrix"
 
 import (
-	"image/color"
 	"machine"
 	"time"
 )
@@ -43,21 +42,12 @@ var matrixRotations = [4][5][5][2]uint8{
 	},
 }
 
-type Config struct {
-	Rotation uint8
-}
-
 type Device struct {
 	pin      [10]machine.Pin
 	buffer   [5][5]bool
 	rotation uint8
 }
 
-// New returns a new microbitmatrix driver.
-func New() Device {
-	return Device{}
-}
-
 // Configure sets up the device.
 func (d *Device) Configure(cfg Config) {
 	d.SetRotation(cfg.Rotation)
@@ -82,31 +72,6 @@ func (d *Device) Configure(cfg Config) {
 	d.DisableAll()
 }
 
-// SetRotation changes the rotation of the LED matrix
-func (d *Device) SetRotation(rotation uint8) {
-	d.rotation = rotation % 4
-}
-
-// SetPixel modifies the internal buffer in a single pixel.
-func (d *Device) SetPixel(x int16, y int16, c color.RGBA) {
-	if x < 0 || x >= 5 || y < 0 || y >= 5 {
-		return
-	}
-	if c.R != 0 || c.G != 0 || c.B != 0 {
-		d.buffer[matrixRotations[d.rotation][x][y][0]][matrixRotations[d.rotation][x][y][1]] = true
-	} else {
-		d.buffer[matrixRotations[d.rotation][x][y][0]][matrixRotations[d.rotation][x][y][1]] = false
-	}
-}
-
-// GetPixel returns if the specific pixels is enabled
-func (d *Device) GetPixel(x int16, y int16) bool {
-	if x < 0 || x >= 5 || y < 0 || y >= 5 {
-		return false
-	}
-	return d.buffer[matrixRotations[d.rotation][x][y][0]][matrixRotations[d.rotation][x][y][1]]
-}
-
 // Display sends the buffer (if any) to the screen.
 func (d *Device) Display() error {
 	for x := 0; x < 5; x++ {