SGDE.Physics.Collision.CollisionUnit.AddCollision C# (CSharp) Method

        public void AddCollision(CollisionUnit other)
        {
            if (!mCollisions.Contains(other))
            {
                mCollisions.Add(other);

                bCollisionsChanged = true;

                if (!bHasCollisions)
                {
                    bHasCollisions = true;
                }
            }
        }

 /// <summary>
 /// Update the collision status between this and the <paramref name="other"/> CollisionUnit.
 /// </summary>
 /// <param name="other">The CollisionUnit to update.</param>
 public void UpdateCollisionsWith(CollisionUnit other)
 {
     if (CollidesWith(other))
     {
         AddCollision(other);
         other.AddCollision(this);
     }
     else
     {
         RemoveCollision(other);
         other.RemoveCollision(this);
     }
 }