protected bool CheckCircleToBoxCollision(CollisionCircle2D self, CollisionBox2D other)
{
// clamp(value, min, max) - limits value to the range min..max
var boxSides = other.BoxSides;
if (other.BoxSides.NeedUpdate)
{
boxSides.UpdateSides(new Vector2(other.Position.x, other.Position.z), other.Size);
}
//var DeltaX = self.Position.x - Mathf.Max(RectX, Min(CircleX, RectX + RectWidth));
//var DeltaY = self.Position.z - Mathf.Max(RectY, Min(CircleY, RectY + RectHeight));
//return (DeltaX * DeltaX + DeltaY * DeltaY) < (CircleRadius * CircleRadius);
//Find the closest point to the circle within the rectangle
float closestX = Mathf.Clamp(self.Position.x, boxSides.Left, boxSides.Right);
float closestY = Mathf.Clamp(self.Position.z, boxSides.Top, boxSides.Bot);
// Calculate the distance between the circle's center and this closest point
float distanceX = self.Position.x - closestX;
float distanceY = self.Position.z - closestY;
// If the distance is less than the circle's radius, an intersection occurs
float distanceSquared = (distanceX * distanceX) + (distanceY * distanceY);
return(distanceSquared < (self.Radius * self.Radius));
}
protected bool CheckCircleToBoxCollision(CollisionBox2D self, CollisionCircle2D other)
{
return(CheckCircleToBoxCollision(other, self));
}
protected bool CheckCircleToCircleCollision(CollisionCircle2D self, CollisionCircle2D other)
{
return(Mathf.Pow(other.Position.x - self.Position.x, 2) +
Mathf.Pow(self.Position.z - other.Position.z, 2) <=
Mathf.Pow(other.Radius + self.Radius, 2));
}