/// <summary>
/// Initializes behavior specific variables that are affected by data from outside the group, and injects non-local dependencies.
/// </summary>
public virtual void Start()
{
FieldInfo[] fields = GetType().GetFields(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
foreach (FieldInfo field in fields)
{
object[] attributes = field.GetCustomAttributes(typeof(BehaviorDependency), false);
foreach (BehaviorDependency attribute in attributes)
{
string groupName = attribute.Group;
if (groupName == null || !(groupName.Length > 0))
{
break;
}
if (!field.FieldType.IsSubclassOf(typeof(Behavior)))
{
// get outta here, as the field is not a behavior
throw new ArgumentException("This field can not be marked as a dependency.", field.Name);
}
BehaviorGroup externalGroup = group.Coordinator.Select(groupName)[attribute.Index];
if (externalGroup.IsAssociated(field.FieldType))
{
field.SetValue(this, externalGroup.Get(field.FieldType));
break;
}
Behavior behavior = null;
try {
behavior = Activator.CreateInstance(field.FieldType) as Behavior;
} catch (MissingMethodException) {
throw new MissingMethodException("The behavior dependency does not implement an empty constructor.");
}
externalGroup.Associate(behavior);
// inject newly created reference
field.SetValue(this, behavior);
}
}
}
/// <summary>
/// Initializes behavior specific variables, and injects local dependencies.
/// </summary>
public virtual void Initialize()
{
FieldInfo[] fields = GetType().GetFields(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
foreach (FieldInfo field in fields)
{
object[] attributes = field.GetCustomAttributes(typeof(BehaviorDependency), false);
foreach (BehaviorDependency attribute in attributes)
{
string groupName = attribute.Group;
if (groupName != null && groupName.Length > 0)
{
break; // get outta here, as explicitly specified group names is another way of saying "dont associate this until Start"
}
if (!field.FieldType.IsSubclassOf(typeof(Behavior)))
{
throw new ArgumentException("This field can not be marked as a dependency.", field.Name); // get outta here, as the field is not a behavior
}
if (group.IsAssociated(field.FieldType))
{
// behavior already associated, so inject reference
field.SetValue(this, group.Get(field.FieldType));
break;
}
// at this point the type should have been verified; meaning, it should be a Behavior
// and not anything else, ie. not any arbitrary class that does not inherit from Behavior.
Behavior behavior = null;
try {
behavior = Activator.CreateInstance(field.FieldType) as Behavior;
} catch (MissingMethodException) {
throw new MissingMethodException("The behavior dependency does not implement an empty constructor.");
}
group.Associate(behavior);
// inject newly created reference
field.SetValue(this, behavior);
}
}
}