I have problems

[Karadag]

Hi, I have a few questions. I am using C ++.

1) For example, I have a derived entity class, and I have a derived actor class attached to this class. Pickinfo gives me an entity when the bullet hits this class. I can also access the atached actor with pickinfo.entity.GetActor (). But since it doesn't give me the class and actor I've derived, I can't call the giveHurt () function in them.

2) In the documentation, the ForEachEntityInAABBDo function can be called in main (). There is no problem. But I can't call the callback function of a class. Should I use a function pointer?

world-> ForEachEntityInAABBDo(aabb, &MyClass::Callback, v); it does not work. Also I cannot call the callback function with a string.

I need to solve these problems so that I can continue to improve my game. I can't get enough help from the forum. I will be glad if you help me.

[Josh]

You can get the actor object, and then you need to cast that actor to whatever class it is:
https://en.cppreference.com/w/cpp/language/dynamic_cast

The function has an extra object you can supply:
https://www.leadwerks.com/learn?page=API-Reference_Object_World_ForEachEntityInAABBDo

Your callback function can call a function on the object, like this:

void Callback(Entity* entity, Object* extra)
{
	MyObject* o = dynamic_cast<MyObject*>(extra);
	o->DoSomething();
}

 

[Karadag]

the actual problem is here. i cant call this function.. both of them in the same class. Thanks for other reply.

  

[Josh]

Is MonsterBase::Callback() a static function?

[Karadag]

Thank you?! useful information for me. it's working