Add animated gopher

main.go

@@ -1,18 +1,28 @@
 package main
 
 import (
+	"embed"
 	"fmt"
 	"image"
 	"image/color"
 
+	"github.com/clktmr/n64/drivers/cartfs"
 	"github.com/clktmr/n64/drivers/controller"
 	"github.com/clktmr/n64/drivers/display"
 	"github.com/clktmr/n64/drivers/draw"
 	"github.com/clktmr/n64/fonts/gomono12"
 	_ "github.com/clktmr/n64/machine"
+	"github.com/clktmr/n64/rcp/serial/joybus"
+	"github.com/clktmr/n64/rcp/texture"
 	"github.com/clktmr/n64/rcp/video"
 )
 
+var (
+	//go:embed gopher-anim.CI8
+	_tutorialFiles embed.FS
+	tutorialFiles  cartfs.FS = cartfs.Embed(_tutorialFiles)
+)
+
 var face = gomono12.NewFace()
 var background = &image.Uniform{color.RGBA{0x7f, 0x7f, 0xaf, 0x0}}
 
@@ -32,6 +42,17 @@ func main() {
 		}
 	}()
 
+	gopherFile, err := tutorialFiles.Open("gopher-anim.CI8")
+	if err != nil {
+		panic(err)
+	}
+	gopherTexture, err := texture.Load(gopherFile)
+	if err != nil {
+		panic(err)
+	}
+	gopherRect := image.Rect(0, 0, 128, 128)
+	blows := 0
+
 	for {
 		fb := display.Swap() // Blocks until next VBlank
 		input := <-controllers
@@ -43,8 +64,23 @@ func main() {
 
 		text := fmt.Appendln(nil, "N⁶⁴ - Get N or Get Out ♫")
 		text = fmt.Appendln(text, input[0].Down())
+		text = fmt.Appendf(text, "blows: %v/8\n", blows)
 		pt = draw.DrawText(fb, textarea, face, pt, image.Black, nil, text)
 
+		gopherFrame := image.Point{}
+		if blows < 8 {
+			if input[0].Pressed()&joybus.ButtonA != 0 {
+				blows++
+			}
+			if input[0].Down()&joybus.ButtonA != 0 {
+				gopherFrame.X += 128 // blowing gopher
+			}
+		} else {
+			gopherFrame.X += 256 // happy gopher
+		}
+
+		draw.Over.Draw(fb, gopherRect.Add(pt), gopherTexture, gopherFrame)
+
 		draw.Flush() // Blocks until everything is drawn
 	}
 }