/// <summary>
/// Adds a new particle to the storage
/// </summary>
/// <param name="entryName">particle name in the game</param>
/// <param name="particleFile">particle file (.Particle)</param>
/// <param name="maxCount">instance count</param>
/// <param name="sceneParent">parent scene node</param>
/// <returns>an index of new particle</returns>
public int AddParticle(string entryName, string particleFile, int maxCount,
NodeBase sceneParent)
{
if (particleOn == false)
{
return(-1);
}
ParticleStorage storage = null;
ParticleSequenceInfo particleInfo = null;
// checks a registerd particle.
int index = FindParticleIndexByName(entryName);
if (index != -1)
{
storage = particleSequencesList[index];
}
else
{
storage = new ParticleStorage();
storage.entryName = entryName;
particleSequencesList.Add(storage);
}
// makes a resource path.
string resourcePath = Path.GetDirectoryName(particleFile);
particleInfo = FindParticleInfo(particleFile);
if (particleInfo == null)
{
particleInfo = LoadParticleSequenceInfo(particleFile);
}
if (particleInfo == null)
{
throw new ArgumentException(
"failed to load particle : " + particleFile);
}
ParticleSequence source =
new ParticleSequence(ref particleInfo, resourcePath);
// makes and stores a particle instance.
for (int i = 0; i < maxCount; i++)
{
ParticleSequence instance =
ParticleSequence.CreateInstance(ref source);
instance.Name = entryName;
storage.list.Add(instance);
// adds particle to render scene.
sceneParent.AddChild(instance);
}
return(particleSequencesList.IndexOf(storage));
}
/// <summary>
/// searches the particle index with the registered particle name.
/// </summary>
/// <param name="entryName">particle name</param>
/// <returns>an index of particle in the list</returns>
public int FindParticleIndexByName(string entryName)
{
for (int i = 0; i < particleSequencesList.Count; i++)
{
ParticleStorage storage = particleSequencesList[i];
if (storage.entryName == entryName)
{
return(particleSequencesList.IndexOf(storage));
}
}
return(-1);
}
/// <summary>
/// searches for the particle (instance) whose activity has ended
/// or is yet to start.
/// </summary>
/// <param name="storage">particle storage</param>
/// <returns></returns>
protected ParticleSequence FindFreeParticle(ParticleStorage storage)
{
if (particleOn == false)
{
return(null);
}
for (int i = 0; i < storage.list.Count; i++)
{
if (storage.list[i].IsPlaying == false)
{
return(storage.list[i]);
}
}
return(null);
}
