/// <summary>
/// Spawn a new instance of the given CESharp entity.
/// </summary>
/// <param name="name">Name.</param>
public static T Spawn <T> (string name = null) where T : BaseEntity
{
EntityClass cls = s_entityClassRegistry.GetEntityClass <T> ();
if (cls == null)
{
Log.Warning("[EntityFramework] Could not find managed CESharp entity class for {0}", typeof(T).Name);
return(null);
}
if (typeof(T).IsAbstract)
{
Log.Warning("[EntityFramework] Cannot instantiate {0} as it is an abstract class.", typeof(T).Name);
return(null);
}
int i = 1;
while (String.IsNullOrEmpty(name))
{
string test = cls.Description.sName + i.ToString();
if (Global.gEnv.pEntitySystem.FindEntityByName(test) == null)
{
name = test;
}
i++;
}
SEntitySpawnParams sParams = new SEntitySpawnParams();
sParams.sName = name;
sParams.pClass = cls.NativeClass;
IEntity pEnt = Global.gEnv.pEntitySystem.SpawnEntity(sParams);
if (s_managedEntities.ContainsKey(pEnt.GetId()))
{
if (s_managedEntities [pEnt.GetId()].GetType() == typeof(T))
{
return(s_managedEntities [pEnt.GetId()] as T);
}
else
{
Log.Error("[EntityFramework] Entity {0} already registered, but with a different type ({1} instead of {2})", pEnt.GetId(), pEnt.GetType().FullName, typeof(T).FullName);
return(null);
}
}
else
{
Log.Info("[EntityFramework] Spawn entity: {0} ({1})", name, cls.ProtoType.Name);
T instance = (T)cls.CreateInstance(pEnt);
cls.NativeClass.LoadScript(true);
s_managedEntities.Add(pEnt.GetId(), instance);
return(instance);
}
}
/// <summary>
/// Called when CRYENGINE's entity system is spawning an entity. Will check if the entity class is registered with the managed entity class registry and if yes, it will create a managed CESharp entity instance.
/// </summary>
private static void OnSpawn(IEntity pEntity, SEntitySpawnParams arg1)
{
if (s_managedEntities.ContainsKey(pEntity.GetId()))
{
return;
}
EntityClass managedClass = s_entityClassRegistry.GetEntityClass(arg1);
if (managedClass == null)
{
return;
}
Log.Info("[EntityFramework] Spawn entity: {0} ({1})", arg1.sName, managedClass.ProtoType.Name);
s_managedEntities.Add(pEntity.GetId(), managedClass.CreateInstance(pEntity, arg1.HasEntityNode() ? arg1.entityNode : null));
}
/// <summary>
/// Setup the CESharp EntityFramework, including registering of discovered CESharp entity classes and assumption of already spawned CESharp entites.
/// </summary>
public static void Instantiate(InterDomainHandler handler)
{
EntityProperty.RegisterConverters();
s_managedEntities = new Dictionary <uint, BaseEntity> ();
s_entityClassRegistry = new EntityClassRegistry();
s_entityClassRegistry.RegisterAll();
s_entitySystemSink = new EntitySystemSink();
s_entitySystemSink.Spawn += OnSpawn;
s_entitySystemSink.Event += OnEvent;
s_entitySystemSink.Remove += OnRemove;
s_entityUpdateListener = new EntityUpdateListener();
s_entityUpdateListener.Update += OnUpdate;
// Assume already spawned entities
IEntityIt it = Global.gEnv.pEntitySystem.GetEntityIterator();
if (it != null)
{
it.MoveFirst();
IEntity pEntity = null;
while (!it.IsEnd())
{
pEntity = it.Next();
EntityClass managedClass = s_entityClassRegistry.GetEntityClass(pEntity);
if (managedClass == null)
{
continue;
}
Log.Info("[EntityFramework] Assume entity: {0} ({1})", pEntity.GetName(), managedClass.ProtoType.Name);
BaseEntity instance = managedClass.CreateInstance(pEntity);
handler.RetrieveEntity(instance);
s_managedEntities.Add(pEntity.GetId(), instance);
}
}
}
