private void CheckCollisionsInGroup(GameTime gameTime, List <ICutlassCollidable> collidableObjects)
{
if (collidableObjects == null || collidableObjects.Count <= 1)
{
return;
}
for (int i = 0; i < collidableObjects.Count; i++)
{
ICutlassCollidable first = collidableObjects[i];
for (int j = i + 1; j < collidableObjects.Count; j++)
{
ICutlassCollidable second = collidableObjects[j];
bool collisionCategoriesOverlap = CheckCollisionCategories(first, second);
//If both are stationary, or neither is stationary, detect collision but don't do anything about it.
if (first.Stationary == second.Stationary)
{
if (collisionCategoriesOverlap && first.NextFrameBoundingRect.Intersects(second.NextFrameBoundingRect))
{
first.CollisionDetected(second);
second.CollisionDetected(first);
}
}
//If only one is stationary, detect collision and correct non-stationary object
else
{
//contact.A is non-stationary object.
CollisionContact collisionContact;
if (first.Stationary)
{
collisionContact = new CollisionContact()
{
A = second, B = first
}
}
;
else
{
collisionContact = new CollisionContact()
{
A = first, B = second
}
};
if (collisionCategoriesOverlap && CalculateCollisionCorrection(gameTime, ref collisionContact) && !IsInternalEdge(collisionContact))
{
collisionContact.A.CollisionDetectedWithCorrection(collisionContact.B, collisionContact.Normal, collisionContact.Distance);
collisionContact.B.CollisionDetected(collisionContact.A);
}
}
}
}
}
