/// <summary>
/// This method is used to check if the ladder is intersecting with the snake.
/// </summary>
/// <param name="iSnake">The snake with which the intersection is to be checked.</param>
/// <returns>True if intersecting else false.</returns>
public bool IsIntersecting(Snake iSnake)
{
Vector L1Start = new Vector(Line1.X1, Line1.Y1);
Vector L1End = new Vector(Line1.X2, Line1.Y2);
Vector L2Start = new Vector(Line2.X1, Line2.Y1);
Vector L2End = new Vector(Line2.X2, Line2.Y2);
Vector L3Start = new Vector(firstStep.X1, firstStep.Y1);
Vector L3End = new Vector(firstStep.X2, firstStep.Y2);
Vector L4Start = new Vector(lastStep.X1, lastStep.Y1);
Vector L4End = new Vector(lastStep.X2, lastStep.Y2);
Line[] iSnakeLines = iSnake.GetLines();
Vector iL1Start = new Vector(iSnakeLines[0].X1, iSnakeLines[0].Y1);
Vector iL1End = new Vector(iSnakeLines[0].X2, iSnakeLines[0].Y2);
Vector iL2Start = new Vector(iSnakeLines[1].X1, iSnakeLines[1].Y1);
Vector iL2End = new Vector(iSnakeLines[1].X2, iSnakeLines[1].Y2);
Vector intersectionPoint = new Vector();
return(SnLUtility.LineSegementsIntersect(iL1Start, iL1End, L1Start, L1End, out intersectionPoint, true) ||
SnLUtility.LineSegementsIntersect(iL1Start, iL1End, L2Start, L2End, out intersectionPoint, true) ||
SnLUtility.LineSegementsIntersect(iL2Start, iL2End, L1Start, L1End, out intersectionPoint, true) ||
SnLUtility.LineSegementsIntersect(iL2Start, iL2End, L2Start, L2End, out intersectionPoint, true) ||
SnLUtility.LineSegementsIntersect(iL2Start, iL2End, L3Start, L3End, out intersectionPoint, true) ||
SnLUtility.LineSegementsIntersect(iL2Start, iL2End, L4Start, L4End, out intersectionPoint, true)
);
}
/// <summary>
/// This method is used to check if the snake is intersecting with the ladder or not.
/// </summary>
/// <param name="iLadder">The ladder with which intersection is to be checked.</param>
/// <returns>True if there is intersection else false.</returns>
public bool IsIntersecting(Ladder iLadder)
{
Line[] snakeLines = GetLines();
Line[] iLadderLines = iLadder.GetLines();
Vector L1Start = new Vector(snakeLines[0].X1, snakeLines[0].Y1);
Vector L1End = new Vector(snakeLines[0].X2, snakeLines[0].Y2);
Vector L2Start = new Vector(snakeLines[1].X1, snakeLines[1].Y1);
Vector L2End = new Vector(snakeLines[1].X2, snakeLines[1].Y2);
Vector L3Start = new Vector(snakeLines[2].X1, snakeLines[2].Y1);
Vector L3End = new Vector(snakeLines[2].X2, snakeLines[2].Y2);
Vector L4Start = new Vector(snakeLines[3].X1, snakeLines[3].Y1);
Vector L4End = new Vector(snakeLines[3].X2, snakeLines[3].Y2);
Vector iL1Start = new Vector(iLadderLines[0].X1, iLadderLines[0].Y1);
Vector iL1End = new Vector(iLadderLines[0].X2, iLadderLines[0].Y2);
Vector iL2Start = new Vector(iLadderLines[1].X1, iLadderLines[1].Y1);
Vector iL2End = new Vector(iLadderLines[1].X2, iLadderLines[1].Y2);
Vector intersectionPoint = new Vector();
return(SnLUtility.LineSegementsIntersect(iL1Start, iL1End, L1Start, L1End, out intersectionPoint, true) ||
SnLUtility.LineSegementsIntersect(iL1Start, iL1End, L2Start, L2End, out intersectionPoint, true) ||
SnLUtility.LineSegementsIntersect(iL2Start, iL2End, L1Start, L1End, out intersectionPoint, true) ||
SnLUtility.LineSegementsIntersect(iL2Start, iL2End, L2Start, L2End, out intersectionPoint, true) ||
SnLUtility.LineSegementsIntersect(iL2Start, iL2End, L3Start, L3End, out intersectionPoint, true) ||
SnLUtility.LineSegementsIntersect(iL2Start, iL2End, L4Start, L4End, out intersectionPoint, true)
);
}
/// <summary>
/// This method is used to check the intersection of the ladders.
/// </summary>
/// <param name="iLadder">The ladder with which intersection is to be checked.</param>
/// <returns>True if interseting else false.</returns>
public bool IsIntersecting(Ladder iLadder)
{
Vector L1Start = new Vector(Line1.X1, Line1.Y1);
Vector L1End = new Vector(Line1.X2, Line1.Y2);
Vector L2Start = new Vector(Line2.X1, Line2.Y1);
Vector L2End = new Vector(Line2.X2, Line2.Y2);
Vector L3Start = new Vector(firstStep.X1, firstStep.Y1);
Vector L3End = new Vector(firstStep.X2, firstStep.Y2);
Vector L4Start = new Vector(lastStep.X1, lastStep.Y1);
Vector L4End = new Vector(lastStep.X2, lastStep.Y2);
Vector iL1Start = new Vector(iLadder.Line1.X1, iLadder.Line1.Y1);
Vector iL1End = new Vector(iLadder.Line1.X2, iLadder.Line1.Y2);
Vector iL2Start = new Vector(iLadder.Line2.X1, iLadder.Line2.Y1);
Vector iL2End = new Vector(iLadder.Line2.X2, iLadder.Line2.Y2);
Vector intersectionPoint = new Vector();
return(SnLUtility.LineSegementsIntersect(iL1Start, iL1End, L1Start, L1End, out intersectionPoint, true) ||
SnLUtility.LineSegementsIntersect(iL1Start, iL1End, L2Start, L2End, out intersectionPoint, true) ||
SnLUtility.LineSegementsIntersect(iL2Start, iL2End, L1Start, L1End, out intersectionPoint, true) ||
SnLUtility.LineSegementsIntersect(iL2Start, iL2End, L2Start, L2End, out intersectionPoint, true) ||
SnLUtility.LineSegementsIntersect(iL2Start, iL2End, L3Start, L3End, out intersectionPoint, true) ||
SnLUtility.LineSegementsIntersect(iL2Start, iL2End, L4Start, L4End, out intersectionPoint, true)
);
}
