/// <summary>
/// パーティクル番号を元にエッジを追加する
/// </summary>
/// <param name="aIdx"></param>
/// <param name="bIdx"></param>
/// <param name="width"></param>
/// <param name="color"></param>
/// <param name="materialID"></param>
/// <returns></returns>
public RefEdge AddEdge(int aIdx, int bIdx, float width, Color color, string materialID)
{
var e = new RefEdge(GetNextUID(), GetParticleAt(aIdx).uid, GetParticleAt(bIdx).uid, width, color, materialID);
_edges.Add(e);
return(e);
}
/// <summary>
/// パーティクル参照を元にエッジを追加する
/// </summary>
/// <param name="a"></param>
/// <param name="b"></param>
/// <param name="width"></param>
/// <param name="color"></param>
/// <param name="materialID"></param>
/// <returns></returns>
public RefEdge AddEdge(RefParticle a, RefParticle b, float width, Color color, string materialID)
{
Assert.IsNotNull(a);
Assert.IsNotNull(b);
var e = new RefEdge(GetNextUID(), a.uid, b.uid, width, color, materialID);
_edges.Add(e);
return(e);
}
/// <summary>
/// 指定した座標にヒットした最も近いエッジを返す
/// </summary>
/// <param name="s"></param>
/// <param name="position"></param>
/// <returns></returns>
public static RefEdge HitEdge(RefStructure s, Vector2 position)
{
float _minDist = float.MaxValue;
RefEdge nearestHitten = null;
for (var i = 0; i < s._edges.Count; ++i)
{
var t = s._edges[i];
var a = s.FindParticleFromUID(t.aUID);
var b = s.FindParticleFromUID(t.bUID);
var dist = Utilities.CalcMinDist2(position, a.position, b.position);
if (_minDist > dist && dist <= t.width)
{
_minDist = dist;
nearestHitten = t;
}
}
return(nearestHitten);
}
/// <summary>
/// 指定したUIDに紐付いているエッジを削除する
/// </summary>
/// <param name="uid"></param>
public void RemoveEdge(RefEdge edge)
{
_edges.Remove(edge);
}
