ui: Remove FinishRendering

internal/loop/run.go

@@ -158,10 +158,6 @@ func Run(g GraphicsContext, width, height, scale int, title string, fps int) err
 				beforeForUpdate += int64(tt) * int64(time.Second) / int64(fps)
 				frames++
 			}
-			if err := ui.CurrentUI().FinishRendering(); err != nil {
-				return err
-			}
-
 			// Calc the current FPS.
 			if time.Second <= time.Duration(n2-beforeForFPS) {
 				fps := float64(frames) * float64(time.Second) / float64(n2-beforeForFPS)
@@ -169,6 +165,7 @@ func Run(g GraphicsContext, width, height, scale int, title string, fps int) err
 				beforeForFPS = n2
 				frames = 0
 			}
+			e.Done <- struct{}{}
 		case ui.PauseEvent:
 			if err := g.Pause(); err != nil {
 				return err

internal/ui/event.go

@@ -25,6 +25,7 @@ type ScreenSizeEvent struct {
 }
 
 type RenderEvent struct {
+	Done chan struct{}
 }
 
 type PauseEvent struct {

internal/ui/ui.go

@@ -18,7 +18,6 @@ type UserInterface interface {
 	Start(width, height, scale int, title string) error
 	Update() (interface{}, error)
 	SwapBuffers() error
-	FinishRendering() error
 	Terminate() error
 	ScreenScale() int
 	SetScreenSize(width, height int) bool

internal/ui/ui_glfw.go

@@ -230,7 +230,9 @@ func (u *userInterface) Update() (interface{}, error) {
 	if ferr != nil {
 		return nil, ferr
 	}
-	return RenderEvent{}, nil
+	// Dummy channel
+	ch := make(chan struct{}, 1)
+	return RenderEvent{ch}, nil
 }
 
 func (u *userInterface) Terminate() error {

internal/ui/ui_js.go

@@ -92,7 +92,9 @@ func (u *userInterface) Update() (interface{}, error) {
 		}
 		return e, nil
 	}
-	return RenderEvent{}, nil
+	// Dummy channel
+	ch := make(chan struct{}, 1)
+	return RenderEvent{ch}, nil
 }
 
 func (u *userInterface) Terminate() error {

internal/ui/ui_mobile.go

@@ -144,7 +144,7 @@ func (u *userInterface) Update() (interface{}, error) {
 		chPauseStart <- struct{}{}
 		return PauseEvent{chPauseEnd}, nil
 	case <-chRender:
-		return RenderEvent{}, nil
+		return RenderEvent{chRenderEnd}, nil
 	}
 }
 
@@ -152,11 +152,6 @@ func (u *userInterface) SwapBuffers() error {
 	return nil
 }
 
-func (u *userInterface) FinishRendering() error {
-	chRenderEnd <- struct{}{}
-	return nil
-}
-
 func (u *userInterface) SetScreenSize(width, height int) bool {
 	// TODO: Implement
 	return false