public sDirections GetDirectionForNext(sVect curVec, sPoint curLoc)
{
sDirections result = sDirections.Null;
if (curVec.Length < (this.size * 3) && curVec.Length > 0)
{
int offset = Convert.ToInt32(Math.Floor((this.size * 3) / curVec.Length));
curVec.MultiplyBy(offset); // make longer to ensure it will intersect side
}
Line north = this.Side[(int)sDirections.North];
Line west = this.Side[(int)sDirections.West];
Line south = this.Side[(int)sDirections.South];
Line east = this.Side[(int)sDirections.East];
Line test = curVec.toLine(curLoc);
if (this.DoLinesIntersect(north, test))
{
sPoint intersect = this.GetLinesIntersect(north, test);
if (intersect == north.Start)
{
result = sDirections.NorthWest;
}
else if (intersect == north.End)
{
result = sDirections.NorthEast;
}
else
{
result = sDirections.North;
}
}
else if (this.DoLinesIntersect(west, test))
{
sPoint intersect = this.GetLinesIntersect(west, test);
if (intersect == west.Start)
{
result = sDirections.NorthWest;
}
else if (intersect == west.End)
{
result = sDirections.SouthWest;
}
else
{
result = sDirections.West;
}
}
else if (this.DoLinesIntersect(south, test))
{
sPoint intersect = this.GetLinesIntersect(west, test);
if (intersect == south.Start)
{
result = sDirections.SouthWest;
}
else if (intersect == south.End)
{
result = sDirections.SouthEast;
}
else
{
result = sDirections.South;
}
}
else if (this.DoLinesIntersect(east, test))
{
sPoint intersect = this.GetLinesIntersect(west, test);
if (intersect == east.Start)
{
result = sDirections.NorthEast;
}
else if (intersect == east.End)
{
result = sDirections.SouthEast;
}
else
{
result = sDirections.East;
}
}
return result;
}
public void AddVector(sVect v)
{
this.X = this.X + v.X;
this.Y = this.Y + v.Y;
}