Added main menu.

cmd/tins2021/app.go

@@ -1,9 +1,6 @@
 package main
 
 import (
-	"image"
-
-	"opslag.de/schobers/geom"
 	"opslag.de/schobers/tins2021"
 	"opslag.de/schobers/zntg/play"
 	"opslag.de/schobers/zntg/ui"
@@ -14,7 +11,7 @@ type app struct {
 
 	settings *tins2021.Settings
 
-	intro *introView
+	context *appContext
 }
 
 type fontDescriptor struct {
@@ -41,6 +38,7 @@ func (a *app) Init(ctx ui.Context) error {
 	if err := a.loadFonts(ctx,
 		fontDescriptor{"debug", "fonts/FiraMono-Regular.ttf", 12},
 		fontDescriptor{"default", "fonts/escheresk.ttf", 32},
+		fontDescriptor{"menu", "fonts/escheresk.ttf", 60},
 		fontDescriptor{"small", "fonts/escheresk.ttf", 16},
 		fontDescriptor{"title", "fonts/escher.ttf", 80},
 	); err != nil {
@@ -58,8 +56,12 @@ func (a *app) Init(ctx ui.Context) error {
 
 	ctx.Overlays().AddOnTop(fpsOverlayName, &play.FPS{Align: ui.AlignRight}, false)
 
-	a.intro = newIntroView(ctx)
+	a.context = &appContext{
-	a.Content = a.intro
+		setView: func(control ui.Control) {
+			a.Content = control
+		},
+	}
+	a.context.ShowMainMenu(ctx)
 
 	return nil
 }
@@ -75,8 +77,6 @@ func (a *app) Handle(ctx ui.Context, e ui.Event) bool {
 	// 	a.settings.Window.Size = &size
 	case *ui.KeyDownEvent:
 		switch e.Key {
-		case ui.KeyEscape:
-			ctx.Quit()
 		case ui.KeyF3:
 			ctx.Overlays().Toggle(ui.DefaultDebugOverlay)
 			ctx.Overlays().Toggle(fpsOverlayName)
@@ -89,52 +89,3 @@ func (a *app) Render(ctx ui.Context) {
 	ctx.Renderer().Clear(ctx.Style().Palette.Background)
 	a.Proxy.Render(ctx)
 }
-
-type introView struct {
-	ui.StackPanel
-}
-
-type Scene struct {
-	ui.ControlBase
-
-	Sprites []Sprite
-}
-
-func (s *Scene) Render(ctx ui.Context) {
-	renderer := ctx.Renderer()
-	for _, sprite := range s.Sprites {
-		renderer.DrawTexturePoint(sprite.Texture, sprite.Position)
-	}
-}
-
-type Sprite struct {
-	Position geom.PointF32
-	Texture  ui.Texture
-}
-
-func newSpriteImage(ctx ui.Context, im image.Image) Sprite {
-	texture, err := ctx.Textures().CreateTextureGo("cube_1", im, false)
-	if err != nil {
-		panic("couldn't create texture")
-	}
-	return Sprite{geom.ZeroPtF32, texture}
-}
-
-func (s Sprite) Destroy() { s.Texture.Destroy() }
-
-func newIntroView(ctx ui.Context) *introView {
-	view := &introView{}
-
-	level := tins2021.NewLevel()
-	level.Randomize(100, 10)
-
-	view.Children = []ui.Control{
-		label("QBITTER", "title"),
-		paragraph("Welcome at Qbitter!\n"+
-			"ABCDEFGHIJKLMNOPQRSTUVWXYZ, abcdefghijklmnopqrstuvwxyz\n"+
-			"",
-			"default"),
-		newLevelControl(ctx, level),
-	}
-	return view
-}

cmd/tins2021/appcontext.go

@@ -0,0 +1,28 @@
+package main
+
+import (
+	"opslag.de/schobers/tins2021"
+	"opslag.de/schobers/zntg/ui"
+)
+
+type appContext struct {
+	setView func(ui.Control)
+}
+
+func (app *appContext) Play(ctx ui.Context) {
+	level := tins2021.NewLevel()
+	level.Randomize(100, 10)
+
+	app.show(newLevelControl(ctx, level))
+}
+
+func (app *appContext) show(control ui.Control) {
+	app.setView(control)
+}
+
+func (app *appContext) ShowCredits(ctx ui.Context) {}
+func (app *appContext) ShowInfo(ctx ui.Context)    {}
+
+func (app *appContext) ShowMainMenu(ctx ui.Context) {
+	app.show(newMainMenu(app, ctx))
+}

cmd/tins2021/mainmenu.go

@@ -0,0 +1,54 @@
+package main
+
+import (
+	"opslag.de/schobers/geom"
+	"opslag.de/schobers/zntg/ui"
+)
+
+type center struct {
+	ui.Proxy
+}
+
+func Center(control ui.Control) ui.Control {
+	return &center{Proxy: ui.Proxy{Content: control}}
+}
+
+func (c *center) Arrange(ctx ui.Context, bounds geom.RectangleF32, offset geom.PointF32, parent ui.Control) {
+	availableWidth := bounds.Dx()
+	availableHeight := bounds.Dy()
+	desired := c.Proxy.DesiredSize(ctx, bounds.Size())
+	if geom.IsNaN32(desired.X) || desired.X > availableWidth {
+		desired.X = availableWidth
+	}
+	if geom.IsNaN32(desired.Y) || desired.Y > availableHeight {
+		desired.Y = availableHeight
+	}
+	inset := bounds.Size().Sub(desired).Mul(.5)
+	c.Proxy.Arrange(ctx, geom.RectF32(bounds.Min.X+inset.X, bounds.Min.Y+inset.Y, bounds.Max.X-inset.X, bounds.Max.Y-inset.Y), offset, parent)
+}
+
+type mainMenu struct {
+	ui.StackPanel
+}
+
+func newMainMenu(app *appContext, ctx ui.Context) ui.Control {
+	menu := NewMenu()
+	// menu.Add("Info", func(ctx ui.Context) { app.ShowInfo(ctx) })
+	menu.Add("Play", func(ctx ui.Context) {
+		app.Play(ctx)
+	})
+	menu.Add("Credits", func(ctx ui.Context) { app.ShowCredits(ctx) })
+	menu.Add("Quit", func(ctx ui.Context) { ctx.Quit() })
+
+	return Center(&mainMenu{
+		StackPanel: ui.StackPanel{
+			ContainerBase: ui.ContainerBase{
+				Children: []ui.Control{
+					label("QBITTER", "title"),
+					menu,
+				},
+			},
+			Orientation: ui.OrientationVertical,
+		},
+	})
+}

cmd/tins2021/menu.go

@@ -0,0 +1,128 @@
+package main
+
+import (
+	"opslag.de/schobers/zntg/ui"
+)
+
+type Menu struct {
+	ui.StackPanel
+
+	OnEscape func(ui.Context)
+
+	active  int
+	buttons []*MenuButton
+}
+
+func NewMenu() *Menu {
+	return &Menu{
+		StackPanel: ui.StackPanel{
+			Orientation: ui.OrientationVertical,
+		},
+	}
+}
+
+func (m *Menu) Activate(i int) {
+	if len(m.buttons) == 0 || i < 0 {
+		return
+	}
+	m.active = i % len(m.buttons)
+}
+
+func (m *Menu) Add(text string, click func(ui.Context)) {
+	button := NewMenuButton(text, click)
+	if len(m.buttons) == 0 {
+		button.Over = true
+	}
+	m.buttons = append(m.buttons, button)
+	m.AddChild(button)
+}
+
+func (m *Menu) Handle(ctx ui.Context, e ui.Event) bool {
+	if m.StackPanel.Handle(ctx, e) {
+		return true
+	}
+
+	if len(m.buttons) == 0 {
+		return false
+	}
+
+	switch e := e.(type) {
+	case *ui.KeyDownEvent:
+		switch e.Key {
+		case ui.KeyEscape:
+			if onEscape := m.OnEscape; onEscape != nil {
+				onEscape(ctx)
+			}
+		case ui.KeyDown:
+			m.updateActiveButton((m.active + 1) % len(m.buttons))
+		case ui.KeyUp:
+			m.updateActiveButton((m.active + len(m.buttons) - 1) % len(m.buttons))
+		case ui.KeyEnter:
+			m.buttons[m.active].InvokeClick(ctx)
+		}
+	case *ui.MouseMoveEvent:
+		for i, button := range m.buttons {
+			if button.IsOver() {
+				m.updateActiveButton(i)
+				break
+			}
+		}
+		m.updateActiveButton(m.active)
+	}
+	return false
+}
+
+func (m *Menu) updateActiveButton(active int) {
+	m.active = active
+	for i, btn := range m.buttons {
+		btn.Over = i == m.active
+	}
+}
+
+type MenuButton struct {
+	ui.Label
+
+	Over  bool
+	Click func(ui.Context)
+}
+
+func NewMenuButton(text string, click func(ui.Context)) *MenuButton {
+	b := &MenuButton{
+		Label: ui.Label{
+			Text: text,
+		},
+		Click: click,
+	}
+	b.ControlClicked().AddHandler(func(ctx ui.Context, _ ui.ControlClickedArgs) {
+		b.InvokeClick(ctx)
+	})
+	return b
+}
+
+func (b *MenuButton) Handle(ctx ui.Context, e ui.Event) bool {
+	if b.ControlBase.Handle(ctx, e) {
+		return true
+	}
+	if b.IsOver() {
+		b.Over = true
+	}
+	return false
+}
+
+func (b *MenuButton) InvokeClick(ctx ui.Context) {
+	if b.Click != nil {
+		b.Click(ctx)
+	}
+}
+
+func (b *MenuButton) Render(ctx ui.Context) {
+	font := b.ActualFont(ctx)
+	textWidth := font.WidthOf(b.Text)
+	bounds := b.Bounds()
+	left := .5 * (bounds.Dx() - textWidth)
+	color := ctx.Style().Palette.Text
+	if b.Over {
+		color = ctx.Style().Palette.Primary
+	}
+	ctx.Renderer().Text(font, bounds.Min.Add2D(left, 0), color, b.Text)
+}

cmd/tins2021/tins2021.go

@@ -79,7 +79,7 @@ func run() error {
 	style.Palette = &ui.Palette{
 		Background:      zntg.MustHexColor(`#494949`),
 		Disabled:        zntg.MustHexColor(`#DEDEDE`),
-		Primary:         zntg.MustHexColor(`#356DAD`),
+		Primary:         zntg.MustHexColor(tins2021.Orange),
 		PrimaryDark:     zntg.MustHexColor(`#15569F`),
 		PrimaryLight:    zntg.MustHexColor(`#ABCAED`),
 		Secondary:       zntg.MustHexColor(`#4AC69A`),