// EXAMEN: Colision entre circulos
public static Tuple <bool, CustomCollision> CircleCollision(CustomSphereCollider2D circle1, CustomSphereCollider2D circle2)
{
float distance = Mathf.Sqrt((circle1.Center.x - circle2.Center.x) * (circle1.Center.x - circle2.Center.x) + ((circle1.Center.y - circle2.Center.y) * (circle1.Center.y - circle2.Center.y)));
var collided = distance < circle1.Radius + circle2.Radius;
Vector3 dirVector = circle2.Center - circle1.Center;
Vector3 closestPoint = dirVector.normalized * circle1.Radius;
CustomCollision customCollision = new CustomCollision(circle1.Center + closestPoint, circle2, (circle1.Center - circle2.Center).normalized);
return(new Tuple <bool, CustomCollision>(collided, customCollision));
}
// EXAMEN: Colision entre AABB y circulo + Normal
public static Tuple <bool, CustomCollision> CircleAABBCollision(CustomSphereCollider2D circle, CustomBoxCollider2D aabb)
{
Vector3 dir = aabb.Center - circle.Center;
dir = dir.normalized;
dir *= circle.Radius;
Vector3 pos = circle.Center + dir;
var aabbCenter = aabb.Center - new Vector3(aabb.Width / 2, aabb.Height / 2);
var collided = (aabbCenter.x <pos.x &&
aabbCenter.x + aabb.Width> pos.x &&
aabbCenter.y <pos.y &&
aabbCenter.y + aabb.Height> pos.y);
Vector3 normal = Vector3.zero;
Vector3 max = aabb.Center + new Vector3(aabb.Width / 2, aabb.Height / 2);
Vector3 min = aabb.Center + new Vector3(-aabb.Width / 2, -aabb.Height / 2);
if (max.x > circle.PreviousCenter.x && min.x < circle.PreviousCenter.x)
{
if (circle.PreviousCenter.x > aabb.Center.x)
{
normal = Vector2.up;
}
else
{
normal = Vector2.down;
}
}
if (max.y > circle.PreviousCenter.y && min.y < circle.PreviousCenter.y)
{
if (circle.PreviousCenter.y > aabb.Center.y)
{
normal = Vector3.left;
}
else
{
normal = Vector3.right;
}
}
Vector3 dirVector = aabb.Center - circle.PreviousCenter;
Vector3 closestPoint = dirVector.normalized * circle.Radius;
Vector3 collisionPoint = circle.PreviousCenter + closestPoint;
CustomCollision customCollision = new CustomCollision(circle.PreviousCenter + closestPoint, aabb, normal == Vector3.zero ? circle.PreviousCenter - collisionPoint : normal);
return(new Tuple <bool, CustomCollision>(collided, customCollision));
}
public override Tuple <bool, CustomCollision> Collide(CustomSphereCollider2D collider)
{
return(Collision.CircleCollision(this, collider));
}
public abstract Tuple <bool, CustomCollision> Collide(CustomSphereCollider2D collider);
