/// <summary>
/// Attempts to rent an ALSource object from the source pool, using a given
/// ALSound object to determine the priority.
/// </summary>
public ALSource Rent()
{
ALSource source = null;
// TODO: Add distance and/or volume checks to cull sounds that are furthest away rather than
// just picking the oldest non-looping one.
for (int i = _current; i < _current + POOL_SIZE; i++)
{
var currentSource = _instances[i % POOL_SIZE];
if (!currentSource.Looping)
{
source = currentSource;
_current = (int)(i % POOL_SIZE);
break;
}
}
if (source == null)
{
_current++;
}
if (_current >= _instances.Length)
{
_current %= _instances.Length;
}
source?.Initialize();
return(source);
}
public ALSourcePool()
{
_instances = new ALSource[POOL_SIZE];
for (int i = 0; i < POOL_SIZE; i++)
{
_instances[i] = new ALSource();
}
}
public override void Play(float volume = 1,
float pitch = 1,
bool looping = false,
Vector3 position = new Vector3())
{
ALSource source = OpenALBackend.ALInstance.RentSource();
if (source == null)
{
throw new InvalidOperationException();
}
source.Sound = this;
source.Looping = looping;
source.Volume = volume;
source.Pitch = pitch;
source.Position = position;
source.Play();
}
