Update

For updating the GameObject entity every frame. NOTE: GameObject Entity must be registered in order to process GameObject::update callback. More...

Collaboration diagram for Update:

Functions
void	Updatable::submitUpdateRegistration ()
	Submit update registration to current scene. More...
void	Updatable::submitUpdateDeregistration ()
	Submit update deregistration to current scene. More...
bool	Updatable::isRegisteredForUpdate () const
	Query if this object is registered for update. More...
virtual void	Updatable::update ()
	Update callback for this object. More...

Detailed Description

For updating the GameObject entity every frame. NOTE: GameObject Entity must be registered in order to process GameObject::update callback.

The Update callback is called by the current Scene every frame. Here is an example of Tank moving foward at a constant rate.

Tank::Tank()
{
    _speed = 5.0f;
    GameObject::submitUpdateRegistration();
}
 
void Tank::Update() // The update callback
{
    Vect moveOffset += Vect(0.0f, 0.0f, 1.0f) * _speed;
    this->move(moveOffset);
}

Function Documentation

isRegisteredForUpdate()

bool Updatable::isRegisteredForUpdate ( ) const

protected

Query if this object is registered for update.

Returns

True if registered for update, false if not.

submitUpdateDeregistration()

void Updatable::submitUpdateDeregistration ( )

protected

Submit update deregistration to current scene.

.

submitUpdateRegistration()

void Updatable::submitUpdateRegistration ( )

protected

Submit update registration to current scene.

update()

void Updatable::update ( )

privatevirtual

Update callback for this object.

To be implemented by user in object derived from GameObject (NOT directly derived from Updatable). Called ONLY by current active scene.