public EnemyDeathEngine(IEntityFunctions entityFunctions, IEntityStreamConsumerFactory consumerFactory,
ITime time, WaitForSubmissionEnumerator waitForSubmission)
{
_entityFunctions = entityFunctions;
_consumerFactory = consumerFactory;
_time = time;
_waitForSubmission = waitForSubmission;
_animations = new FasterList <IEnumerator>();
_consumer = _consumerFactory.GenerateConsumer <DeathComponent>(
ECSGroups.EnemiesGroup, "EnemyDeathEngine", 10);
}
public IEnumerator Tick()
{
_submissionWait = new WaitForSubmissionEnumerator(_functions, _entityFactory, entitiesDB);
yield return(ReadyAllCoins());
while (true)
{
yield return(_submissionWait);
var(coins, coinViews, coinsCount) =
entitiesDB.QueryEntities <CoinComponent, CoinViewComponent>(CoinGroups.RecycledCoinsGroup);
if (coinsCount == 0)
{
continue;
}
// Advance spawn timer.
var coinToSpawn = -1;
for (var i = 0; i < coinsCount; i++)
{
coins[i].TimeToRespawn -= _time.DeltaTime;
if (coins[i].TimeToRespawn > 0)
{
continue;
}
coinToSpawn = i;
break;
}
// Make sure there are available cells to drop a coin.
var(cells, cellCount) = entitiesDB.QueryEntities <GridCellComponent>(GridGroups.GridWaterGroup);
if (cellCount == 0 || _freeCellsFilter.filteredIndices.Count() == 0 || coinToSpawn < 0)
{
continue;
}
// Spawn one coin if found (recycling it).
var availableCells = _freeCellsFilter.filteredIndices;
var selectedCell = _random.NextUInt(0, (uint)availableCells.Count());
var cell = cells[availableCells.Get(selectedCell)];
var coinView = coinViews[coinToSpawn];
_functions.SwapEntityGroup <CoinEntityDescriptor>(coinView.ID, CoinGroups.SpawnedCoinsGroup);
coinView.Transform.Position = new float3(cell.WorldCenter, 0);
}
}
