Change Game.Update

ebiten.go

@@ -29,12 +29,12 @@ type Game interface {
 	ScreenHeight() int
 	Fps() int
 	Init(tf graphics.TextureFactory)
-	Update(inputState InputState)
-	Draw(g graphics.Context)
+	Update(context GameContext)
+	Draw(context graphics.Context)
 }
 
-type UI interface {
-	Run()
+type GameContext interface {
+	InputState() InputState
 }
 
 type InputState struct {

example/game/blank/blank.go

@@ -47,7 +47,7 @@ func (game *Blank) Fps() int {
 func (game *Blank) Init(tf graphics.TextureFactory) {
 }
 
-func (game *Blank) Update(inputState ebiten.InputState) {
+func (game *Blank) Update(context ebiten.GameContext) {
 }
 
 func (game *Blank) Draw(context graphics.Context) {

example/game/input/input.go

@@ -67,8 +67,8 @@ func (game *Input) Init(tf graphics.TextureFactory) {
 	}
 }
 
-func (game *Input) Update(inputState ebiten.InputState) {
-	game.inputState = inputState
+func (game *Input) Update(context ebiten.GameContext) {
+	game.inputState = context.InputState()
 }
 
 func (game *Input) Draw(g graphics.Context) {

example/game/monochrome/monochrome.go

@@ -115,7 +115,7 @@ func (game *Monochrome) update() {
 	}
 }
 
-func (game *Monochrome) Update(inputState ebiten.InputState) {
+func (game *Monochrome) Update(context ebiten.GameContext) {
 	game.ch <- true
 	<-game.ch
 }

example/game/rects/rects.go

@@ -53,7 +53,7 @@ func (game *Rects) Init(tf graphics.TextureFactory) {
 	game.rectsTexture = tf.NewTexture(game.ScreenWidth(), game.ScreenHeight())
 }
 
-func (game *Rects) Update(inputState ebiten.InputState) {
+func (game *Rects) Update(context ebiten.GameContext) {
 }
 
 func (game *Rects) Draw(g graphics.Context) {

example/game/rotating/rotating.go

@@ -68,7 +68,7 @@ func (game *Rotating) Init(tf graphics.TextureFactory) {
 	}
 }
 
-func (game *Rotating) Update(inputState ebiten.InputState) {
+func (game *Rotating) Update(context ebiten.GameContext) {
 	game.x++
 }
 

example/game/sprites/sprites.go

@@ -125,7 +125,7 @@ func (game *Sprites) Init(tf graphics.TextureFactory) {
 	}
 }
 
-func (game *Sprites) Update(inputState ebiten.InputState) {
+func (game *Sprites) Update(context ebiten.GameContext) {
 	for _, sprite := range game.sprites {
 		sprite.Update()
 	}

example/glut/main.go

@@ -122,6 +122,14 @@ func (ui *GlutUI) Run() {
 	C.glutMainLoop()
 }
 
+type GameContext struct {
+	inputState ebiten.InputState
+}
+
+func (context *GameContext) InputState() ebiten.InputState {
+	return context.inputState
+}
+
 func main() {
 	runtime.GOMAXPROCS(runtime.NumCPU())
 
@@ -188,12 +196,14 @@ func main() {
 		frameTime := time.Duration(
 			int64(time.Second) / int64(game.Fps()))
 		update := time.Tick(frameTime)
-		inputState := ebiten.InputState{-1, -1}
+		gameContext := &GameContext{
+			inputState: ebiten.InputState{-1, -1},
+		}
 		for {
 			select {
-			case inputState = <-input:
+			case gameContext.inputState = <-input:
 			case <-update:
-				game.Update(inputState)
+				game.Update(gameContext)
 			case drawing := <-draw:
 				ch := make(chan interface{})
 				drawing <- func(context graphics.Context) {