/// <summary> Checks if the given edge is blocked. </summary>
/// <param name="begin"> The start of the edge. </param>
/// <param name="end"> The end of the edge. </param>
/// <param name="r1"> The starting room of the path. </param>
/// <param name="r2"> The ending room of the path. </param>
/// <param name="floor"> The floor this path is on. </param>
/// <param name="upperLayer"> The Layer above this path's floor. </param>
/// <param name="lowerLayer"> The layer below this path's floor. </param>
/// <returns> True if there is something blocking this edge. </returns>
private bool CheckEdgeBlocked(Vector3 begin, Vector3 end, Room r1, Room r2, Floor floor, MiddleLayer upperLayer, MiddleLayer lowerLayer)
{
Vector3 tl, tr, bl, br;
GenerationUtility.BoxBounds(begin, end, this.pathWidth, out tl, out tr, out bl, out br);
foreach (Room r in floor.Rooms)
{
if (r != r1 && r != r2)
{
if (r.IsIntersectingLine(tl, bl))
{
return(true);
}
if (r.IsIntersectingLine(tr, br))
{
return(true);
}
}
}
if (upperLayer != null)
{
foreach (LayerPath l in upperLayer.Paths)
{
if (l.IsIntersectingLine(tl, bl))
{
Vector3 pos = GenerationUtility.LineLineIntersection(tl, bl, l.Start.Position, l.End.Position);
bool inRoom = IsInRoom(pos, l.Start, l.End);
if (!inRoom)
{
return(true);
}
}
if (l.IsIntersectingLine(tr, br))
{
Vector3 pos = GenerationUtility.LineLineIntersection(tr, br, l.Start.Position, l.End.Position);
bool inRoom = IsInRoom(pos, l.Start, l.End);
if (!inRoom)
{
return(true);
}
}
}
}
if (lowerLayer != null)
{
foreach (LayerPath l in lowerLayer.Paths)
{
if (l.IsIntersectingLine(tl, bl))
{
Vector3 pos = GenerationUtility.LineLineIntersection(tl, bl, l.Start.Position, l.End.Position);
bool inRoom = IsInRoom(pos, l.Start, l.End);
if (!inRoom)
{
return(true);
}
}
if (l.IsIntersectingLine(tr, br))
{
Vector3 pos = GenerationUtility.LineLineIntersection(tr, br, l.Start.Position, l.End.Position);
bool inRoom = IsInRoom(pos, l.Start, l.End);
if (!inRoom)
{
return(true);
}
}
}
}
return(false);
}
