/// <summary>
/// 頂点の追加
/// </summary>
public void Add(Vector2 point)
{
mainLine.Add(point);
//エフェクトの生成
int count = mainLine.GetVertexCount();
if (count > 1)
{
EmitEffect(effectParticle, mainLine.GetVertex(count - 2), point, density);
}
draw = true;
}
/// <summary>
/// 頂点追加前の例外検出。例外を検出した場合はtrueを返す
/// </summary>
private bool ExceptionDetector(Vector2 point)
{
int count = polyLine.GetVertexCount();
//同一点の検出
if (doublePointRemoval)
{
if (count > 1)
{
Vector2 prevPoint = polyLine.GetVertex(count - 1);
float dis = (point - prevPoint).magnitude;
if (dis < doublePointThreshold)
{
if (doublePointCallback != null)
{
doublePointCallback();
}
return(true);
}
}
}
//線分の交差判定
if (crossLineRemoval)
{
if (count > 2)
{
//検出線分の作成
LineSegment line = new LineSegment(polyLine.GetVertex(count - 1), point);
for (int i = 0; i < count - 2; ++i)
{
//比較線分の作成
LineSegment sample = new LineSegment(polyLine.GetVertex(i), polyLine.GetVertex(i + 1));
if (line.Intersects(sample))
{
if (crossLineCallback != null)
{
crossLineCallback();
}
return(true);
}
}
}
}
return(false);
}
