// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>. // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE using System.Collections.Generic; using System.Linq; using osu.Game.Rulesets.Mania.Objects; namespace osu.Game.Rulesets.Mania.Beatmaps.Patterns { /// <summary> /// Creates a pattern containing hit objects. /// </summary> internal class Pattern { private readonly List<ManiaHitObject> hitObjects = new List<ManiaHitObject>(); /// <summary> /// All the hit objects contained in this pattern. /// </summary> public IEnumerable<ManiaHitObject> HitObjects => hitObjects; /// <summary> /// Check whether a column of this patterns contains a hit object. /// </summary> /// <param name="column">The column index.</param> /// <returns>Whether the column with index <paramref name="column"/> contains a hit object.</returns> public bool ColumnHasObject(int column) => hitObjects.Exists(h => h.Column == column); /// <summary> /// Amount of columns taken up by hit objects in this pattern. /// </summary> public int ColumnWithObjects => HitObjects.GroupBy(h => h.Column).Count(); /// <summary> /// Adds a hit object to this pattern. /// </summary> /// <param name="hitObject">The hit object to add.</param> public void Add(ManiaHitObject hitObject) => hitObjects.Add(hitObject); /// <summary> /// Copies hit object from another pattern to this one. /// </summary> /// <param name="other">The other pattern.</param> public void Add(Pattern other) => hitObjects.AddRange(other.HitObjects); /// <summary> /// Clears this pattern, removing all hit objects. /// </summary> public void Clear() => hitObjects.Clear(); /// <summary> /// Removes a hit object from this pattern. /// </summary> /// <param name="hitObject">The hit object to remove.</param> public bool Remove(ManiaHitObject hitObject) => hitObjects.Remove(hitObject); } }