コード例 #1
0
        internal void UpdateStarDifficultyDisplay(bool instant)
        {
            if (!IsLoaded || Beatmap == null || state < TreeItemState.ExtrasVisible)
            {
                return;
            }

            double stars = Math.Min(Beatmap.StarDisplay, 10.0); // We don't want to deal with more than 10 stars in this display

            if (currentlyVisibleStars == stars)
            {
                return;
            }

            double previouslyVisibleStars = currentlyVisibleStars;

            currentlyVisibleStars = stars;

            UpdateDifficultyText();

            // We want the -1 placeholder for "inexistant difficulty" to be treated like 0 stars here
            if (stars < 0)
            {
                stars = 0;

                int BackgroundStarSpritesEndIndex = starSpritesBeginIndex + AMOUNT_STARS;
                for (int i = starSpritesBeginIndex; i < BackgroundStarSpritesEndIndex; ++i)
                {
                    pDrawable starSprite = SpriteCollection[i];
                    starSprite.FadeOut(instant ? 0 : (OldLayout ? 1000 : 600));
                }
            }
            // ... with the exception of the background stars appearing. We want these to only appear once difficulty has been computed. (for looking good!)
            else
            {
                int BackgroundStarSpritesEndIndex = starSpritesBeginIndex + AMOUNT_STARS;
                for (int i = starSpritesBeginIndex; i < BackgroundStarSpritesEndIndex; ++i)
                {
                    pDrawable starSprite = SpriteCollection[i];
                    starSprite.FadeIn(instant ? 0 : (OldLayout ? 1000 : 600));
                }
            }



            int StarSpritesEndIndex = starSpritesBeginIndex + AMOUNT_STARS * 2;

            for (int i = starSpritesBeginIndex + AMOUNT_STARS; i < StarSpritesEndIndex; ++i)
            {
                int     starIndex  = i - (starSpritesBeginIndex + AMOUNT_STARS);
                double  starsLeft  = stars - starIndex;
                pSprite starSprite = SpriteCollection[i] as pSprite;

                starSprite.Transformations.Clear();

                if (OldLayout)
                {
                    int targetWidth = (int)(starSprite.Width * starsLeft);

                    // It is important to also clip the width to negative values so the animation is delayed when the stars potentially appear again after the difficulty has been computed.
                    // Don't optimize this and set to 0!
                    starSprite.ClipWidthTo(targetWidth, instant ? 0 : 500, EasingTypes.OutCubic);
                }
                else
                {
                    float newScale          = starsLeft <= 0 ? 0 : star_scale * (float)Math.Max(0.5f, Math.Min(1, starsLeft) + starIndex * 0.04f);
                    int   amountStarsScaled = (int)Math.Floor(starIndex - Math.Min(stars, previouslyVisibleStars));

                    if (instant)
                    {
                        starSprite.ScaleTo(newScale, 0);
                    }
                    else
                    {
                        int timeAddition = previouslyVisibleStars <= stars ? amountStarsScaled : (int)Math.Floor(previouslyVisibleStars - stars) - amountStarsScaled - 1;
                        int startTime    = GameBase.Time + timeAddition * 80 + 50;
                        starSprite.Transformations.Add(new Transformation(TransformationType.Scale, starSprite.Scale, newScale, startTime, startTime + 500, EasingTypes.OutBack));
                    }
                }
            }
        }