/// <summary>
/// 指定の Element コレクション内について、指定の Element を解析します。
/// </summary>
/// <param name="elements">Element コレクション。</param>
/// <param name="target">解析対象の Element。</param>
/// <returns>解析結果の ResolvedElement。</returns>
public static ResolvedElement Resolve(InterElementCollection elements, Element target)
{
var resolvedElement = new ResolvedElement(target);
var targetPosition = target.Position;
var testPosition = targetPosition;
testPosition.X = targetPosition.X + 1;
resolvedElement.SurfaceVisible[(int)CubeSurfaces.East] = !elements.Contains(testPosition);
testPosition.X = targetPosition.X - 1;
resolvedElement.SurfaceVisible[(int)CubeSurfaces.West] = !elements.Contains(testPosition);
testPosition.X = targetPosition.X;
testPosition.Y = targetPosition.Y + 1;
resolvedElement.SurfaceVisible[(int)CubeSurfaces.Top] = !elements.Contains(testPosition);
testPosition.Y = targetPosition.Y - 1;
resolvedElement.SurfaceVisible[(int)CubeSurfaces.Bottom] = !elements.Contains(testPosition);
testPosition.Y = targetPosition.Y;
testPosition.Z = targetPosition.Z - 1;
resolvedElement.SurfaceVisible[(int)CubeSurfaces.North] = !elements.Contains(testPosition);
testPosition.Z = targetPosition.Z + 1;
resolvedElement.SurfaceVisible[(int)CubeSurfaces.South] = !elements.Contains(testPosition);
return(resolvedElement);
}
/// <summary>
/// Element を分類します。
/// </summary>
/// <param name="elements">Element のリスト。</param>
/// <returns>分類結果を管理する ElementClassifier。</returns>
public static ElementClassifier Classify(InterElementCollection elements)
{
var instance = new ElementClassifier();
foreach (var element in elements)
{
// 面の結合状態を解析します。
var resolvedElement = ResolvedElement.Resolve(elements, element);
// 立方体が完全に囲まれているのではないならば分類を開始します。
if (!resolvedElement.Enclosed)
{
instance.Classify(resolvedElement);
}
}
// Parts プロパティへ全ての Part を追加します。
foreach (var partList in instance.partListMap.Values)
{
foreach (var part in partList)
{
instance.Parts.Add(part);
}
}
return(instance);
}
