public override bool Update()
{
if (advance.ShouldAdvance())
{
if (groupNum >= world.Waves.Count)
{
if (advance is TimeElapsedAdvancer)
if (!string.IsNullOrEmpty(world.NextWorld))
GameManager.Navigate(new PlayState(world.NextWorld));
else GameManager.Navigate(new IntroState());
else advance = new TimeElapsedAdvancer(5);
}
else
Spawn();
}
return true;
}
private void Spawn()
{
WaveGroup group = world.Waves[groupNum];
foreach(WaveSpawn spawn in group.Spawns)
{
GameManager.State.Instantiate(new LevelSpawner(spawn.Interval, spawn.Number, new Vector2(spawn.Position.X, spawn.Position.Y), spawn.Identifier, spawn.SubType));
}
groupNum++;
if (groupNum >= world.Waves.Count)
advance = new WaveRemainingAdvancer(0);
else
{
group = world.Waves[groupNum];
switch (group.AdvanceType)
{
case AdvanceTypes.EnemiesLeft:
int rem;
if (!Int32.TryParse(group.AdvanceArgs, out rem))
rem = 0;
advance = new WaveRemainingAdvancer(rem);
break;
case AdvanceTypes.TimeElapsed:
float delay;
if (!float.TryParse(group.AdvanceArgs, out delay))
delay = 5;
advance = new TimeElapsedAdvancer(delay);
break;
}
}
}
/// <summary>
/// Construct a PagedEnumerator based on the specified
/// <see cref="IAdvancer"/>.
/// </summary>
/// <param name="advancer">
/// The underlying <b>IAdvancer</b>.
/// </param>
public PagedEnumerator(IAdvancer advancer)
{
Debug.Assert(advancer != null);
m_advancer = advancer;
}
