public static void CreateContacts(List <Body> bodies, out List <Contact> contacts)
{
contacts = new List <Contact>();
for (int i = 0; i < bodies.Count - 1; i++)
{
for (int j = i + 1; j < bodies.Count; j++)
{
Body bodyA = bodies[i];
Body bodyB = bodies[j];
if (bodyA.type == Body.eType.Static && bodyB.type == Body.eType.Static)
{
continue;
}
CircleCollider circleA = new CircleCollider(bodyA.position, ((Circle)bodyA.shape).radius);
CircleCollider circleB = new CircleCollider(bodyB.position, ((Circle)bodyB.shape).radius);
if (circleA.Contains(circleB))
{
Contact contact = new Contact()
{
bodyA = bodyA, bodyB = bodyB
};
float distance = (circleA.center - circleB.center).magnitude;
contact.depth = (circleA.radius + circleB.radius) - distance;
contact.normal = (circleA.center - circleB.center).normalized;
contacts.Add(contact);
}
}
}
}