public bool Traverse(ArcOfSphere path, Vector3 desiredPos) //I don't like these parameters, they can be fixed //I don't like that this is public, it should be private and exposed via a generic move option if possible
{
optional <float> interpolation_factor = path.CartesianToRadial(desiredPos);
if (interpolation_factor.exists)
{
ground = new GroundInfo();
ground.data.angle = interpolation_factor.data;
ground.data.arc = path;
ground.data.block = path.GetComponentInParent <Block>();
ground.data.height = path.LengthRadius(radius);
ground.data.begin = path.Begin(radius);
ground.data.end = path.End(radius);
current_position = ArcOfSphere.Evaluate(ground.data, radius);
}
else
{
Debug.Log("Critical Failure: Traverse's interpolation factor doesn't exist!");
}
return(interpolation_factor.exists);
}
public override void Initialize(ArcOfSphere left, ArcOfSphere right)
{
#if UNITY_EDITOR
this.Save();
#endif
Vector3 path_center = right.Evaluate(right.Begin());
//Debug.DrawRay(path_center, Vector3.up, Color.yellow);
path_normal = right.Evaluate(right.Begin());
arc_left = left.EvaluateNormal(left.End());
arc_right = right.EvaluateNormal(right.Begin());
Initialize(path_center);
this.Relink(left, right);
}
public static void Append(GameObject shape)
{
lines = new List <QuadraticBezier>();
ArcOfSphere first_edge = shape.GetComponentInChildren <Edge>();
ArcOfSphere arc = first_edge;
do
{
float begin = arc.Begin();
float end = arc.End();
float range_begin = arc.Begin();
float range_end = arc.End();
float range_mid = arc.End() / 2;
int[,] xyz_signs_begin = new int[2, 3]; //positional, derivative; x, y, z
int[,] xyz_signs_end = new int[2, 3];
int[,] xyz_signs_range_begin = new int[2, 3]; //immediately before the first detected change in sign
int[,] xyz_signs_range_end = new int[2, 3]; //the first detected change in any sign
int[,] xyz_signs_range_mid = new int[2, 3]; //middle of begin and range_end
// get signs for beginning and end
UpdateSigns(arc, ref xyz_signs_begin, arc.Begin(), delta);
UpdateSigns(arc, ref xyz_signs_end, arc.End(), -delta);
// process new lines until the signs match
while (!SameSigns(ref xyz_signs_begin, ref xyz_signs_end))
{
xyz_signs_range_begin = xyz_signs_begin;
xyz_signs_range_end = xyz_signs_end;
// binary search and discard ranges with matching slope signs and position signs at ends; and then update the slope signs.
while (range_end - range_begin > delta)
{
range_mid = (range_begin + range_end) / 2; //guaranteed not to overflow since numbers are in range [0, 2pi]
UpdateSigns(arc, ref xyz_signs_range_mid, range_mid, delta);
if (SameSigns(ref xyz_signs_range_begin, ref xyz_signs_range_mid))
{
range_begin = range_mid;
//xyz_signs_begin = xyz_signs_range_mid; //not necessary, the signs are the same
}
else
{
range_end = range_mid;
xyz_signs_range_end = xyz_signs_range_mid;
}
}
// when you find a sign that switches, log the exact position of the switch with as much precision as possible
Subdivide(arc, begin, range_begin);
// when you find that position, you must then switch the x, y, z signs at the new beginning of the arc and the slope signs xyz at the beginning of the arc
begin = range_end;
xyz_signs_begin = xyz_signs_range_end;
}
// draw the last line
Subdivide(arc, begin, end);
arc = arc.next; // move to next arc
while (arc.GetType().IsSubclassOf(typeof(Corner))) // skip corners //XXX: Corner is abstract... for now
{
arc = arc.next;
}
} while (arc != first_edge);
ClampToEdges();
OverlapSharedEdges();
BuildShape();
}