...

cmd/test/main.go

@@ -52,5 +52,8 @@ func main() {
 	e.Add(tri)
 	fmt.Println(rect.GetLayer(), player.GetLayer())
 
-	e.Run()
+	err = e.Run()
+	if err != nil {
+		panic(err)
+	}
 }

cmd/test/player.go

@@ -31,6 +31,10 @@ func NewPlayer() *Player {
 	return ret
 }
 
+func (p *Player) Start(c *Context) {
+	fmt.Println("library:", c.GraphicsLibrary())
+}
+
 // Custom drawing function.
 func (p *Player) Draw(c *Context) {
 	p.Sprite.Draw(c)

engine.go

@@ -10,6 +10,9 @@ import (
 	"sync"
 )
 
+type GraphicsLibrary = ebiten.GraphicsLibrary
+type RunOptions = ebiten.RunGameOptions
+
 // The type represents order of drawing.
 // Higher values are drawn later.
 type Layer float64
@@ -20,6 +23,8 @@ func (l Layer) GetLayer() Layer {
 
 // Window configuration type.
 type WindowConfig struct {
+	DebugInfo ebiten.DebugInfo
+	Options *RunOptions
 	// The title of the window.
 	Title string
 	
@@ -68,6 +73,10 @@ func (e *Engine) Keys() []Key {
 	return e.keys
 }
 
+func (e *Engine) GraphicsLibrary() GraphicsLibrary {
+	return e.wcfg.DebugInfo.GraphicsLibrary
+}
+
 // Returns currently pressed buttons.
 func (e *Engine) MouseButtons() []MouseButton {
 	ret := make([]MouseButton, len(e.buttons))
@@ -351,6 +360,7 @@ func (e *Engine) DT() Float {
 }
 
 func (e *Engine) Run() error {
+	ebiten.ReadDebugInfo(&e.wcfg.DebugInfo)
 	ebiten.SetWindowTitle(e.wcfg.Title)
 	ebiten.SetWindowSize(e.wcfg.Width, e.wcfg.Height)
 	ebiten.SetWindowSizeLimits(1, 1, e.wcfg.Width, e.wcfg.Height)
@@ -359,6 +369,6 @@ func (e *Engine) Run() error {
 
 	e.lastTime = time.Now()
 	//fmt.Println(e.Objects)
-	return ebiten.RunGame((*engine)(e))
+	return ebiten.RunGameWithOptions((*engine)(e), e.wcfg.Options)
 }