private static bool CheckOverlap(Arc arc, Circle circle)
{
vec2 p1 = arc.Position;
vec2 p2 = circle.Position;
float sumRadius = arc.Radius + circle.Radius;
float distanceSquared = Utilities.DistanceSquared(p1, p2);
if (distanceSquared > sumRadius * sumRadius)
{
return(false);
}
float angle = Utilities.Angle(p1, p2);
float delta = Utilities.CorrectAngle(Math.Abs(angle - arc.Angle));
float halfSpread = arc.Spread / 2;
if (delta <= halfSpread)
{
return(true);
}
vec2[] points = new vec2[2];
for (int i = 0; i < 2; i++)
{
float a = arc.Angle + halfSpread * (i == 0 ? -1 : 1);
points[i] = p1 + Utilities.Direction(a) * arc.Radius;
}
if (points.Any(circle.Contains))
{
return(true);
}
float radiusSquared = circle.Radius * circle.Radius;
return(points.Any(p => Utilities.DistanceSquaredToLine(p2, p1, p) <= radiusSquared));
}
private static bool CheckOverlap(Arc arc, Circle circle)
{
var p1 = arc.Position;
var p2 = circle.Position;
var sumRadius = arc.Radius + circle.Radius;
var distanceSquared = Utilities.DistanceSquared(p1, p2);
if (distanceSquared > sumRadius * sumRadius)
{
return(false);
}
var angle = Utilities.Angle(p1, p2);
var delta = Utilities.Delta(angle, arc.Angle);
var halfSpread = arc.Spread / 2;
if (delta <= halfSpread)
{
return(true);
}
var points = new vec2[2];
for (int i = 0; i < 2; i++)
{
var a = arc.Angle + halfSpread * (i == 0 ? -1 : 1);
points[i] = p1 + Utilities.Direction(a) * arc.Radius;
}
if (points.Any(p => circle.Contains(p, Coordinates.Absolute)))
{
return(true);
}
var squared = circle.Radius * circle.Radius;
return(points.Any(p => Utilities.DistanceSquaredToLine(p2, p1, p, out _) <= squared));
}
