/// <summary>
/// Create a ghost path to build a new section of path
/// </summary>
/// <param name="data"></param>
public GhostPath(PathData data)
: base(data)
{
this.startClickLocation = null;
this.Position = Input.IsoWorld.Clone();
this.segments = new List<PathSegment>();
this.ghostCursor = new PathSegment(this.data, Input.IsoWorld);
this.Position = Input.IsoWorld.Clone();
}
/// <summary>
/// Creates an instance of a path on the world map
/// </summary>
/// <param name="position">Position of the building</param>
/// <param name="segment">Segment information</param>
public Path(PathSegment segment)
: base(segment.WorldPosition.y)
{
this.segment = segment;
this.Clickable = true;
this.Position = segment.WorldPosition;
this.Size = new Pair<int>(Constants.TILE_WIDTH, Constants.TILE_HEIGHT);
this.DirtyPathBit = true;
DirtySurroundingBits();
}
/// <summary>
/// Get the list of path segments between two points
/// This is not fast, it may need to be optimized later.
/// </summary>
/// <returns></returns>
private List<PathSegment> GetPathSegments()
{
List<PathSegment> ret = new List<PathSegment>();
var curSeg = new PathSegment(this.data, Input.IsoWorld.Clone());
ret.Add(curSeg);
this.segmentsValid = curSeg.IsValidSegment;
if (Math.Abs(curSeg.WorldPosition.x - this.startClickLocation.x) % Path.dx[2] != 0 || Math.Abs(curSeg.WorldPosition.y - this.startClickLocation.y) % Path.dy[1] != 0)
{
Logger.Log(LogLevel.Error, "Bad snapping coordinates", string.Format("Very bad. Somehow the coordinates are not snapped to a grid! {0} -> {1}", curSeg.WorldPosition, this.startClickLocation));
}
while (!curSeg.WorldPosition.Equals(this.startClickLocation))
{
PathSegment nextSegment = null;
double currentDist = Double.MaxValue; // Geometry.Dist(curSeg.WorldPosition, this.startClickLocation);
for (int i = 0; i < Path.dx.Length; ++i)
{
var newGridPosition = new Pair<int>(curSeg.WorldPosition.x + Path.dx[i], curSeg.WorldPosition.y + Path.dy[i]);
var newGridDist = Geometry.Dist(newGridPosition, this.startClickLocation);
if (newGridDist < currentDist)
{
nextSegment = new PathSegment(this.data, newGridPosition);
currentDist = newGridDist;
}
}
curSeg = nextSegment;
ret.Add(curSeg);
this.segmentsValid = this.segmentsValid && curSeg.IsValidSegment;
}
return ret;
}
