/// <summary>
/// Add all the objects in ObjectsToAdd to ActiveObjects, then update ActiveObjects before deleting objects in ObjectsToRemove
/// </summary>
/// <param name="elapsedGameTime">The seconds that have elapsed since the last update loop</param>
public override void Update(float elapsedGameTime)
{
// Always call the super class' function - it will deal with whether it should run it itself
base.Update(elapsedGameTime);
// Add the objects and then clear the list - it is only a temporary holder
ActiveObjects.AddRange(ObjectsToAdd);
ObjectsToAdd.Clear();
// Loop through the active object
foreach (T obj in ActiveObjects)
{
if (obj.ShouldUpdate)
{
// Update the object
obj.Update(elapsedGameTime);
}
}
// Remove all the objects that are no longer alive
ActiveObjects.RemoveAll(x => x.IsAlive == false);
// Remove all the objects we have marked to remove
foreach (T obj in ObjectsToRemove)
{
ActiveObjects.Remove(obj);
}
ObjectsToRemove.Clear(); // Clear the list - it is only a temporary holder
}
public void Initialize()
{
ActiveObjects.Add(new Player(PlayerStart));
ActiveObjects.AddRange(StaticObjects);
ActiveObjects.AddRange(EnemyDots);
ActiveObjects.AddRange(Coins);
ActiveObjects.Add(Goal);
}
public void Reset()
{
(Globals.ActiveScene.ActiveObjects.First(x => x is Player) as Player).Reset(PlayerStart);
AquiredCoins = 0;
ActiveObjects.ForEach(x =>
{
if (!(x is Coin))
return;
ActiveObjects.Remove(x);
});
ActiveObjects.AddRange(GetCoins());
}
/// <summary>
/// Because we add objects in the update loop, the current objects we need to load are in ObjectsToAdd.
/// Iterate through them, call Initialise on each of them and add to our ActiveObjects
/// </summary>
public override void Initialise()
{
// Check to see whether we have already called Initialise
CheckShouldInitialise();
foreach (T obj in ObjectsToAdd.FindAll(x => x.ShouldInitialise))
{
// Call initialise on all objects which have not already been initialised
obj.Initialise();
}
ActiveObjects.AddRange(ObjectsToAdd);
ObjectsToAdd.Clear();
base.Initialise();
}
/// <summary>
/// Iterate through all the objects in ActiveObjects and call Begin
/// </summary>
public override void Begin()
{
base.Begin();
// Do not need to check whether begun has already been called - this is guaranteed
// Do another pass on our ObjectsToAdd to add any stragglers
ActiveObjects.AddRange(ObjectsToAdd);
ObjectsToAdd.Clear();
foreach (T obj in ActiveObjects.FindAll(x => !x.IsBegun))
{
// Call begin on any object which has not already begun
obj.Begin();
}
}