added select menu scene (transparency fails)

game/game.go

@@ -18,7 +18,7 @@ type Game struct {
 	Observer                  *observers.GameObserver
 }
 
-func NewGame(width, height, cellsize, startlevel int, startscene int) *Game {
+func NewGame(width, height, cellsize, startlevel int, startscene SceneName) *Game {
 	world := ecs.NewWorld()
 
 	game := &Game{
@@ -34,8 +34,9 @@ func NewGame(width, height, cellsize, startlevel int, startscene int) *Game {
 	game.Observer = observers.NewGameObserver(&world, startlevel, width, height, cellsize)
 
 	game.Scenes[Welcome] = NewWelcomeScene(game)
+	game.Scenes[Select] = NewSelectScene(game)
 	game.Scenes[Play] = NewLevelScene(game, startlevel)
-	game.CurrentScene = Welcome
+	game.CurrentScene = startscene
 
 	fmt.Println(game.World.Stats().String())
 

game/select_scene.go

@@ -0,0 +1,113 @@
+package game
+
+import (
+	"image/color"
+	"openquell/assets"
+
+	"github.com/ebitenui/ebitenui"
+	"github.com/ebitenui/ebitenui/image"
+	"github.com/ebitenui/ebitenui/widget"
+
+	"github.com/hajimehoshi/ebiten/v2"
+)
+
+type SelectScene struct {
+	Game     *Game
+	Next     SceneName
+	Whoami   SceneName
+	UseCache bool
+	Ui       *ebitenui.UI
+}
+
+func NewSelectScene(game *Game) Scene {
+	scene := &SelectScene{Whoami: Select, Game: game, Next: Select}
+
+	scene.SetupUI()
+
+	return scene
+}
+
+func (scene *SelectScene) GetNext() SceneName {
+	return scene.Next
+}
+
+func (scene *SelectScene) SetNext(next SceneName) {
+	scene.Next = next
+}
+
+func (scene *SelectScene) Update() error {
+	scene.Ui.Update()
+	return nil
+}
+
+func (scene *SelectScene) Draw(screen *ebiten.Image) {
+	scene.Ui.Draw(screen)
+}
+
+func (scene *SelectScene) SetupUI() {
+	buttonImage, _ := loadButtonImage()
+
+	btnContainer := widget.NewContainer(
+		widget.ContainerOpts.Layout(widget.NewAnchorLayout()),
+	)
+
+	button := widget.NewButton(
+		widget.ButtonOpts.WidgetOpts(
+			widget.WidgetOpts.LayoutData(widget.AnchorLayoutData{
+				HorizontalPosition: widget.AnchorLayoutPositionCenter,
+				VerticalPosition:   widget.AnchorLayoutPositionCenter,
+			}),
+		),
+
+		widget.ButtonOpts.Image(buttonImage),
+
+		widget.ButtonOpts.Text("Start new Game", *assets.FontRenderer.Font, &widget.ButtonTextColor{
+			Idle: color.NRGBA{0xdf, 0xf4, 0xff, 0xff},
+		}),
+
+		widget.ButtonOpts.TextPadding(widget.Insets{
+			Left:   30,
+			Right:  30,
+			Top:    5,
+			Bottom: 5,
+		}),
+
+		widget.ButtonOpts.ClickedHandler(func(args *widget.ButtonClickedEventArgs) {
+			scene.SetNext(Play)
+		}),
+	)
+
+	btnContainer.AddChild(button)
+
+	rootContainer := widget.NewContainer(
+		widget.ContainerOpts.BackgroundImage(
+			// FIXME: see https://github.com/ebitenui/ebitenui/issues/118
+			image.NewNineSlice(assets.Assets["background-transparent"], [3]int{0, 1, 639}, [3]int{0, 1, 479})),
+		//widget.ContainerOpts.BackgroundImage(image.NewNineSliceColor(color.NRGBA{0x13, 0x1a, 0x22, 0xff})),
+		//widget.ContainerOpts.BackgroundImage(image.NewNineSliceColor(color.NRGBA{0xff, 0x80, 0x00, 0x00})),
+		widget.ContainerOpts.Layout(
+			widget.NewStackedLayout(
+				widget.StackedLayoutOpts.Padding(
+					widget.NewInsetsSimple(25)))),
+	)
+
+	rootContainer.AddChild(btnContainer)
+
+	scene.Ui = &ebitenui.UI{
+		Container: rootContainer,
+	}
+}
+
+func loadButtonImage() (*widget.ButtonImage, error) {
+	idle := image.NewNineSliceColor(color.NRGBA{R: 170, G: 170, B: 180, A: 255})
+
+	hover := image.NewNineSliceColor(color.NRGBA{R: 130, G: 130, B: 150, A: 255})
+
+	pressed := image.NewNineSliceColor(color.NRGBA{R: 100, G: 100, B: 120, A: 255})
+
+	return &widget.ButtonImage{
+		Idle:    idle,
+		Hover:   hover,
+		Pressed: pressed,
+	}, nil
+}

game/welcome_scene.go

@@ -33,7 +33,7 @@ func (scene *WelcomeScene) Update() error {
 	switch {
 	case ebiten.IsKeyPressed(ebiten.KeyEnter):
 		slog.Debug("welcome.Update() next")
-		scene.SetNext(Play)
+		scene.SetNext(Select)
 	}
 
 	return nil