public static bool IsNearBezierTest(Vector2 p, Drawing.BezierCurve c, float accuracy, float maxDist)
{
Vector2 prepoint = c.Get(0);
for (float i = accuracy; i < 1; i += accuracy)
{
var point = c.Get(i);
float d = (p - point).sqrMagnitude;
float d2 = (prepoint - point + new Vector2(maxDist, maxDist)).sqrMagnitude;
if (d <= d2 * 2)
{
return(true);
}
}
return(false);
}
public static Vector2 NearestPointOnBezier(Vector2 p, Drawing.BezierCurve c, float accuracy, bool doubleAc)
{
float minDist = Mathf.Infinity;
float minT = 0;
Vector2 minP = Vector2.zero;
for (float i = 0; i < 1; i += accuracy)
{
var point = c.Get(i);
float d = (p - point).sqrMagnitude;
if (d < minDist)
{
minDist = d;
minT = i;
minP = point;
}
}
if (!doubleAc)
{
return(minP);
}
float st = Mathf.Clamp01(minT - accuracy);
float en = Mathf.Clamp01(minT + accuracy);
for (var i = st; i < en; i += accuracy / 10)
{
var point = c.Get(i);
float d = (p - point).sqrMagnitude;
if (d < minDist)
{
minDist = d;
minT = i;
minP = point;
}
}
return(minP);
}
public static bool IsNearBezier(Vector2 p, Drawing.BezierPoint point1, Drawing.BezierPoint point2, float rad)
{
if (point1.curve2 != point2.curve1)
{
Debug.LogError("Curves Not The Same");
return(false);
}
Drawing.BezierCurve curve = point1.curve2;
var r = curve.rect;
r.x -= rad;
r.y -= rad;
r.width += rad * 2;
r.height += rad * 2;
if (!r.Contains(p))
{
return(false);
}
var nearest = NearestPointOnBezier(p, curve, 0.1f, false);
var sec = point1.curve2.aproxLength / 10;
if ((nearest - p).sqrMagnitude >= (sec * 3) * (sec * 3))
{
return(false);
}
nearest = NearestPointOnBezier(p, curve, 0.01f, true);
if ((nearest - p).sqrMagnitude <= rad * rad)
{
return(true);
}
return(false);
}