TTask.h

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#pragma once
#include "TObject.h"
#include "TRefCounted.h"
#include "TNodeTree.h"
 
TOSHI_NAMESPACE_START
 
class TScheduler;
 
class TTask : public TObject
    , public TRefCounted
    , public TNodeTree<TTask>::TNode
{
public:
    TDECLARE_CLASS( TTask, TObject );
 
public:
    friend TScheduler;
 
    enum State
    {
        State_Created = BITFLAG( 0 ),
        State_Active  = BITFLAG( 1 ),
        State_Dying   = BITFLAG( 2 ),
    };
 
public:
    TTask();
    virtual ~TTask();
 
    virtual TBOOL Create();
    virtual TBOOL CreateFailed();
    virtual TBOOL Reset();
    virtual TBOOL OnCreate();
    virtual TBOOL OnUpdate( TFLOAT a_fDeltaTime );
    virtual void  OnPreDestroy();
    virtual void  OnDestroy();
    virtual TBOOL OnChildDying( TTask* child );
    virtual void  OnChildDied( TClass* a_pClass, TTask* a_pDeletedTask );
    virtual void  OnActivate();
    virtual void  OnDeactivate();
 
    void Activate( TBOOL activate );
    void SetParent( TTask* a_pAttachTo );
 
    TUINT32& GetFlags() { return m_State; }
    TBOOL    IsCreated() const { return m_State & State_Created; }
    TBOOL    IsActive() const { return m_State & State_Active; }
    TBOOL    IsCreatedAndActive() const { return ( m_State & ( State_Created | State_Active ) ) == ( State_Created | State_Active ); }
    TBOOL    IsDying() const { return m_State & State_Dying; }
 
private:
    TUINT32 m_State;
};
 
TOSHI_NAMESPACE_END