fixed onHover bug in d2ui.Sprite (#992)

Co-authored-by: M. Sz <mszeptuch@protonmail.com>

d2core/d2ui/sprite.go

@@ -34,17 +34,25 @@ func (ui *UIManager) NewSprite(animationPath, palettePath string) (*Sprite, erro
 
 	base := NewBaseWidget(ui)
 
-	return &Sprite{
+	sprite := &Sprite{
 		BaseWidget: base,
 		animation:  animation,
 		Logger:     ui.Logger,
-	}, nil
+	}
+
+	sprite.SetVisible(false)
+
+	ui.addWidget(sprite)
+
+	return sprite, nil
 }
 
 // Render renders the sprite on the given surface
 func (s *Sprite) Render(target d2interface.Surface) {
 	_, frameHeight := s.animation.GetCurrentFrameSize()
 
+	s.width, s.height = s.animation.GetCurrentFrameSize()
+
 	target.PushTranslation(s.x, s.y-frameHeight)
 	defer target.Pop()
 
@@ -90,11 +98,6 @@ func (s *Sprite) RenderSegmented(target d2interface.Surface, segmentsX, segments
 	}
 }
 
-// GetSize returns the size of the current frame
-func (s *Sprite) GetSize() (width, height int) {
-	return s.GetCurrentFrameSize()
-}
-
 // GetFrameSize gets the Size(width, height) of a indexed frame.
 func (s *Sprite) GetFrameSize(frameIndex int) (x, y int, err error) {
 	return s.animation.GetFrameSize(frameIndex)