/// <summary>
/// Places each hit object of the pattern beatmap into the other beatmap and applies timingpoint changes to copy timingpoint stuff aswell.
/// The given pattern beatmap could be modified by this method if protectBeatmapPattern is false.
/// </summary>
/// <param name="patternBeatmap">The pattern beatmap to be placed into the beatmap.</param>
/// <param name="beatmap">To beatmap to place the pattern in.</param>
/// <param name="offset">An offset to move the pattern beatmap in time with.</param>
/// <param name="protectBeatmapPattern">If true, copies the pattern beatmap to prevent the pattern beatmap from being modified by this method.</param>
public void PlaceOsuPattern(Beatmap patternBeatmap, Beatmap beatmap, double offset = 0, bool protectBeatmapPattern = true)
{
if (protectBeatmapPattern)
{
// Copy so the original pattern doesnt get changed
patternBeatmap = patternBeatmap.DeepCopy();
}
// Do the offset
if (Math.Abs(offset) > Precision.DOUBLE_EPSILON)
{
patternBeatmap.OffsetTime(offset);
}
// We adjust the pattern first so it alligns with the beatmap.
// The right timing is applied and optional pre-processing is applied.
// Sliderends and object timingpoints get recalculated.
PreparePattern(patternBeatmap, beatmap, out var parts, out var timingPointsChanges);
// Keep just the timing point changes which are inside the parts.
// These timing point changes have everything that is necessary for inside the parts of the pattern. (even timing)
timingPointsChanges = timingPointsChanges.Where(tpc => parts.Any(part =>
part.StartTime <= tpc.MyTP.Offset && part.EndTime >= tpc.MyTP.Offset)).ToList();
// Remove stuff
if (PatternOverwriteMode != PatternOverwriteMode.NoOverwrite)
{
foreach (var part in parts)
{
RemovePartOfBeatmap(beatmap, part.StartTime - Padding, part.EndTime + Padding);
}
}
// Add timingpoint changes for each hitobject to make sure they still have the wanted SV and hitsounds (especially near the edges of parts)
// It is possible for the timingpoint of a hitobject at the start of a part to be outside of the part, so this fixes issues related to that
timingPointsChanges.AddRange(
beatmap.HitObjects.Where(ho => ho.TimingPoint != null)
.Select(GetSvChange));
if (IncludeHitsounds)
{
timingPointsChanges.AddRange(
beatmap.HitObjects.Where(ho => ho.HitsoundTimingPoint != null)
.Select(GetHitsoundChange));
}
// Apply the changes
TimingPointsChange.ApplyChanges(beatmap.BeatmapTiming, timingPointsChanges);
// Add the hitobjects of the pattern
beatmap.HitObjects.AddRange(patternBeatmap.HitObjects);
// Sort hitobjects
beatmap.SortHitObjects();
if (FixColourHax)
{
beatmap.FixComboSkip();
}
beatmap.GiveObjectsGreenlines();
beatmap.CalculateSliderEndTimes();
}
