/// <summary>
/// Internal implementation of executing a queue.
/// </summary>
private IEnumerator ExecuteQueueAsync(int queueId, List <GemAction> queue)
{
// Current barrier state
GemActionBarrier barrier = new GemActionBarrier();
// Execute the queue
foreach (var action in queue)
{
if (action.delay > 0f)
{
yield return(new WaitForSeconds(action.delay));
}
switch (action.type)
{
case GemActionType.None:
break;
case GemActionType.Barrier:
yield return(StartCoroutine(barrier.WaitAsync()));
barrier.Reset();
break;
default:
StartCoroutine(ExecuteActionAsync(action, barrier));
break;
}
}
// Wait for all the actions to finish
yield return(StartCoroutine(barrier.WaitAsync()));
// Free unused objects
gemMap.ClearUnusedGems();
// Remove the queue from playing dict
playingQueueDict.Remove(queueId);
}
/// <summary>
/// Execute gem action.
/// </summary>
private IEnumerator ExecuteActionAsync(GemAction action, GemActionBarrier barrier)
{
barrier.AddTask();
switch (action.type)
{
case GemActionType.Clear:
{
var gem = gemMap[action.coord];
gem.Disappear();
GameManager.Instance.Level.GainScore(action.score);
yield return(new WaitWhile(() => gem.IsAnimating));
gemMap.FreeGem(gem); // Remove the gem from gem map
break;
}
case GemActionType.Swap:
{
var gem1 = gemMap[action.coord];
var gem2 = gemMap[action.destCoord];
// Remove the gem from gem map first to avoid them
// being overlapped by each other
gemMap.FreeGem(gem1);
gemMap.FreeGem(gem2);
gemMap.SetGemCoord(gem1, action.destCoord, true);
gemMap.SetGemCoord(gem2, action.coord, true);
yield return(new WaitWhile(() => gem1.IsAnimating || gem2.IsAnimating));
break;
}
case GemActionType.Move:
{
var gem = gemMap[action.coord];
gemMap.SetGemCoord(gem, action.destCoord, true);
yield return(new WaitWhile(() => gem.IsAnimating));
break;
}
case GemActionType.Create:
{
var gem = GemFactory.Instance.CreateGem(action.gemType);
gemMap.AddGem(gem, action.coord, true);
yield return(new WaitWhile(() => gem.IsAnimating));
break;
}
case GemActionType.Transform:
{
var newGem = GemFactory.Instance.CreateGem(action.gemType);
// Old gem will be removed from the map automatically
gemMap.SetGemCoord(newGem, action.coord);
break;
}
}
// Wait for one frame
yield return(null);
barrier.RemoveTask();
}