examples/blocks: Skip the gamepad configuration if a standard layout is available

examples/blocks/blocks/gamepad.go

@@ -39,6 +39,23 @@ var virtualGamepadButtons = []virtualGamepadButton{
 	virtualGamepadButtonButtonB,
 }
 
+func (v virtualGamepadButton) StandardGamepadButton() ebiten.StandardGamepadButton {
+	switch v {
+	case virtualGamepadButtonLeft:
+		return ebiten.StandardGamepadButtonLeftLeft
+	case virtualGamepadButtonRight:
+		return ebiten.StandardGamepadButtonLeftRight
+	case virtualGamepadButtonDown:
+		return ebiten.StandardGamepadButtonLeftBottom
+	case virtualGamepadButtonButtonA:
+		return ebiten.StandardGamepadButtonRightBottom
+	case virtualGamepadButtonButtonB:
+		return ebiten.StandardGamepadButtonRightRight
+	default:
+		panic("not reached")
+	}
+}
+
 const axisThreshold = 0.75
 
 type axis struct {
@@ -64,15 +81,28 @@ func (c *gamepadConfig) SetGamepadID(id ebiten.GamepadID) {
 	c.gamepadIDInitialized = true
 }
 
-func (c *gamepadConfig) IsInitialized() bool {
+func (c *gamepadConfig) ResetGamepadID() {
+	c.gamepadID = 0
+	c.gamepadIDInitialized = false
+}
+
+func (c *gamepadConfig) IsGamepadIDInitialized() bool {
 	return c.gamepadIDInitialized
 }
 
+func (c *gamepadConfig) NeedsConfiguration() bool {
+	return !ebiten.IsStandardGamepadLayoutAvailable(c.gamepadID)
+}
+
 func (c *gamepadConfig) initializeIfNeeded() {
 	if !c.gamepadIDInitialized {
 		panic("not reached")
 	}
 
+	if ebiten.IsStandardGamepadLayoutAvailable(c.gamepadID) {
+		return
+	}
+
 	if c.buttons == nil {
 		c.buttons = map[virtualGamepadButton]ebiten.GamepadButton{}
 	}
@@ -101,9 +131,6 @@ func (c *gamepadConfig) initializeIfNeeded() {
 }
 
 func (c *gamepadConfig) Reset() {
-	c.gamepadID = 0
-	c.gamepadIDInitialized = false
-
 	c.buttons = nil
 	c.axes = nil
 	c.assignedButtons = nil
@@ -168,6 +195,10 @@ func (c *gamepadConfig) IsButtonPressed(b virtualGamepadButton) bool {
 		panic("not reached")
 	}
 
+	if ebiten.IsStandardGamepadLayoutAvailable(c.gamepadID) {
+		return ebiten.IsStandardGamepadButtonPressed(c.gamepadID, b.StandardGamepadButton())
+	}
+
 	c.initializeIfNeeded()
 
 	bb, ok := c.buttons[b]
@@ -193,6 +224,10 @@ func (c *gamepadConfig) IsButtonJustPressed(b virtualGamepadButton) bool {
 		panic("not reached")
 	}
 
+	if ebiten.IsStandardGamepadLayoutAvailable(c.gamepadID) {
+		return inpututil.IsStandardGamepadButtonJustPressed(c.gamepadID, b.StandardGamepadButton())
+	}
+
 	c.initializeIfNeeded()
 
 	bb, ok := c.buttons[b]

examples/blocks/blocks/gamepadscene.go

@@ -33,10 +33,10 @@ type GamepadScene struct {
 func (s *GamepadScene) Update(state *GameState) error {
 	if s.currentIndex == 0 {
 		state.Input.gamepadConfig.Reset()
-		state.Input.gamepadConfig.SetGamepadID(s.gamepadID)
 	}
 	if inpututil.IsKeyJustPressed(ebiten.KeyEscape) {
 		state.Input.gamepadConfig.Reset()
+		state.Input.gamepadConfig.ResetGamepadID()
 		state.SceneManager.GoTo(&TitleScene{})
 		return nil
 	}

examples/blocks/blocks/input.go

@@ -48,7 +48,7 @@ func (i *Input) stateForVirtualGamepadButton(b virtualGamepadButton) int {
 }
 
 func (i *Input) Update() {
-	if !i.gamepadConfig.IsInitialized() {
+	if !i.gamepadConfig.IsGamepadIDInitialized() {
 		return
 	}
 

examples/blocks/blocks/titlescene.go

@@ -40,7 +40,7 @@ type TitleScene struct {
 }
 
 func anyGamepadVirtualButtonJustPressed(i *Input) bool {
-	if !i.gamepadConfig.IsInitialized() {
+	if !i.gamepadConfig.IsGamepadIDInitialized() {
 		return false
 	}
 
@@ -64,13 +64,21 @@ func (s *TitleScene) Update(state *GameState) error {
 		return nil
 	}
 
+	if state.Input.gamepadConfig.IsGamepadIDInitialized() {
+		return nil
+	}
+
 	// If 'virtual' gamepad buttons are not set and any gamepad buttons are pressed,
 	// go to the gamepad configuration scene.
-	if id := state.Input.GamepadIDButtonPressed(); id >= 0 {
+	id := state.Input.GamepadIDButtonPressed()
+	if id < 0 {
+		return nil
+	}
+	state.Input.gamepadConfig.SetGamepadID(id)
+	if state.Input.gamepadConfig.NeedsConfiguration() {
 		g := &GamepadScene{}
 		g.gamepadID = id
 		state.SceneManager.GoTo(g)
-		return nil
 	}
 	return nil
 }