public virtual void AddEntity(Entity instance)
{
if (instance == null)
{
Debug.LogError("OverallEntitySystem--AddEntity should not be passed a null value");
return;
}
if (this.GetEntity(instance.name) != null)
{
UnityEngine.Debug.LogError("StatComponentSystem -- You cannot add 2 statistics of the same name -- A statistic of name "
+ instance.name + " already exists in this System");
return;
}
instance.OnComponentsChanged += this.ResetCaches;
this.entities.Add(instance);
this.ResetCaches();
foreach (Component component in instance.GetComponents <Component>())
{
foreach (object attribute in component.GetType().GetCustomAttributes(true))
{
if (attribute is PartOfComponentSystemAttribute)
{
PartOfComponentSystemAttribute pocsa = (PartOfComponentSystemAttribute)attribute;
bool isGlobalSystem = false;
foreach (object parentSystemAttribute in pocsa.parentSystemType.GetCustomAttributes(true))
{
if (parentSystemAttribute is GlobalComponentSystemAttribute)
{
isGlobalSystem = true;
}
}
if (isGlobalSystem)
{
continue;
}
ComponentSystem system = (ComponentSystem)typeof(EntitySystem)
.GetMethod("GetSystem")
.MakeGenericMethod(pocsa.parentSystemType)
.Invoke(this, null);
if (system == null)
{
system = (ComponentSystem)pocsa.parentSystemType.GetConstructor(new Type[] { }).Invoke(null, null);
this.AddSystem(system);
}
system.AddComponent(component);
}
}
}
instance.SetOverallSystem(this);
}
public virtual void AddComponent(Component instance)
{
bool allowSearch = true;
Type instanceType = instance.GetType();
while (allowSearch)
{
if (instanceType == typeof(Component))
{
break;
}
foreach (object attribute in instanceType.GetCustomAttributes(false))
{
if (attribute is AllowMultipleAttribute)
{
allowSearch = false;
break;
}
}
if (allowSearch && typeof(Entity).GetMethod("GetComponent").MakeGenericMethod(instanceType).Invoke(this, null) != null)
{
Debug.LogError(string.Format(
"Entity--{0}--AddComponent--Cannot have two instances of a Component--{1}--on a single Entity",
this.name,
instanceType.ToString()));
return;
}
instanceType = instanceType.BaseType;
}
// TODO: Merge these two searches of the attributes of the Instance's Type
foreach (object attribute in instance.GetType().GetCustomAttributes(true))
{
if (attribute is RequireComponentAttribute)
{
foreach (Type type in ((RequireComponentAttribute)attribute).required)
{
if (typeof(Entity).GetMethod("GetComponent").MakeGenericMethod(type).Invoke(this, null) == null)
{
this.AddComponent((Component)type.GetConstructor(new Type[] { }).Invoke(null, null));
}
}
}
}
this.components.Add(instance);
instance.SetEntity(this);
foreach (object attribute in instance.GetType().GetCustomAttributes(true))
{
if (attribute is PartOfComponentSystemAttribute)
{
PartOfComponentSystemAttribute pocsa = (PartOfComponentSystemAttribute)attribute;
foreach (
object parentSystemAttribute
in pocsa.parentSystemType.GetCustomAttributes(true))
{
if (parentSystemAttribute is GlobalComponentSystemAttribute)
{
((ComponentSystem)pocsa
.parentSystemType
.GetProperty("Instance")
.GetValue(null, null))
.AddComponent(instance);
}
}
}
}
if (this.OnComponentsChanged != null)
{
this.OnComponentsChanged();
}
this.ResetCaches();
}
