/*
* This method is used to spawn a car at the defined spawn point. This is a coroutine which provides a callback
* so the animation can be queued up.
*
* If the input vehicleType is VehicleType.random then it spawns a random vehicle out of all spawnable one (ones
* that are not in the carpark). Otherwise, it will spawned the specified VehicleType if it is not already spawned.
*
* The separate _customSpawnableVehicles list is for managing custom assets (e.g. garbage A->E)
*/
protected IEnumerator Spawn(VehicleType vehicleType, Action<Tuple<VehicleType, GameObject>> callback = null)
{
foreach (var vehicle in _activeVehicles.Keys)
{
if (vehicle.GetComponent<IsoTransform>().Position.Equals(_spawnPoint))
{
Debug.Log("Cannot spawn vehicle, a vehicle exist at spawn");
callback?.Invoke(null);
yield break;
}
}
// Getting a random vehicle which is spawnable
if (vehicleType == VehicleType.random)
{
if (!Randomiser.RandomValuesFromDict(_spawnableVehicles, out vehicleType))
{
Debug.Log("No vehicle left to spawn");
callback?.Invoke(null);
}
}
// Try to spawn the defined vehicleType (from spawnable list first then custom list)
if (_spawnableVehicles.TryGetValue(vehicleType, out var vehicleAsset))
{
GameObject obj = Instantiate(vehicleAsset);
obj.GetComponent<IsoTransform>().Position = _spawnPoint;
obj.GetComponent<CustomAStarAgent>().Graph = FindObjectOfType<CustomGridGraph.CustomGridGraph>();
if (_activeVehicles.TryAdd(obj, vehicleType))
{
_spawnableVehicles.TryRemove(vehicleType, out _);
callback?.Invoke(new Tuple<VehicleType, GameObject>(vehicleType, obj));
}
else
{
DestroyImmediate(obj);
callback?.Invoke(null);
}
}
else if (_customSpawnableVehicles.TryGetValue(vehicleType, out vehicleAsset))
{
GameObject obj = Instantiate(vehicleAsset);
obj.GetComponent<IsoTransform>().Position = _spawnPoint;
obj.GetComponent<CustomAStarAgent>().Graph = FindObjectOfType<CustomGridGraph.CustomGridGraph>();
if (_activeVehicles.TryAdd(obj, vehicleType))
{
_customSpawnableVehicles.TryRemove(vehicleType, out _);
callback?.Invoke(new Tuple<VehicleType, GameObject>(vehicleType, obj));
}
else
{
DestroyImmediate(obj);
callback?.Invoke(null);
}
}
else
{
callback?.Invoke(null);
Debug.Log("Cannot spawn vehicle, this vehicle type already spawned");
}
Debug.Log($"There are {_activeVehicles.Count} active vehicles");
}
