// see when the line (lineStart to lineEnd) intersects the barrier lines (barrierVertZero to barrierVertOne and the line barrierVertOne to barrierVertTwo)
// return back the min length to these lines, or return the current length of the line if both barrier lines are u
private static float CalculateMaxLineLengthXZ(Vector3 lineStart, Vector3 lineEnd, Vector3 barrierVertZero, Vector3 barrierVertOne, Vector3?barrierVertTwo = null)
{
lineStart.y = lineEnd.y = barrierVertZero.y = barrierVertOne.y = 0f;
float maxLineLength = (lineStart - lineEnd).magnitude;
bool doesIntersect = false;
Vector3 intersectionPoint = VectorMath.SegmentIntersectionPointXZ(lineStart, lineEnd, barrierVertZero, barrierVertOne, out doesIntersect);
if (doesIntersect)
{
maxLineLength = (intersectionPoint - lineStart).magnitude;
}
if (barrierVertTwo.HasValue) // if we want to test two barrier lines
{
Vector3 barrierVertTwoVal = barrierVertTwo.GetValueOrDefault();
barrierVertTwoVal.y = 0f;
intersectionPoint = VectorMath.SegmentIntersectionPointXZ(lineStart, lineEnd, barrierVertOne, barrierVertTwoVal, out doesIntersect);
if (doesIntersect)
{
maxLineLength = Mathf.Min(maxLineLength, (intersectionPoint - lineStart).magnitude); // see if this barier is nearer than the previous
}
}
return(maxLineLength);
}
public static Vector3 SegmentIntersectionPoint(Vector3 start1, Vector3 end1, Vector3 start2, Vector3 end2, out bool intersects)
{
return(VectorMath.SegmentIntersectionPointXZ(start1, end1, start2, end2, out intersects));
}
