virtual void Point(irr::core::vector3df Vec2,f32 Speed)

[Fy_Hertz]

Hi guys,
I'm trying to add a new virtual member to the ISceneNode class.

This is the fonction:

Code: Select all

		virtual void Point(irr::core::vector3df Vec2,f32 Speed)
        {
            core::vector3df Vec = this*->getPosition();
            Vec.X+=(Speed*((Vec2.X-Vec.X)/sqrt((Vec2.X-Vec.X)*(Vec2.X-Vec.X)+(Vec2.Z-Vec.Z)*(Vec2.Z-Vec.Z))));
            Vec.Z+=(Speed*((Vec2.Z-Vec.Z)/sqrt((Vec2.X-Vec.X)*(Vec2.X-Vec.X)+(Vec2.Z-Vec.Z)*(Vec2.Z-Vec.Z))));
            Vec.Y+=(Speed*((Vec2.Y-Vec.Y)/sqrt((Vec2.Y-Vec.Y)*(Vec2.Y-Vec.Y)+(Vec2.Z-Vec.Z)*(Vec2.Z-Vec.Z))));
            this*->setPosition(Vec);   
        }

With this fonction the ISceneNode can follow a vector.
When i try to compile my program crash without any error: why ?

Otherwise, i can use this following fonction witch works correctly.

Code: Select all

void Point(irr::scene::ISceneNode* Node,irr::core::vector3df Vec2,f32 Speed)
{
      core::vector3df Vec = Node->getPosition();
      Vec.X+=(Speed*((Vec2.X-Vec.X)/sqrt((Vec2.X-Vec.X)*(Vec2.X-Vec.X)+(Vec2.Z-Vec.Z)*(Vec2.Z-Vec.Z))));
      Vec.Z+=(Speed*((Vec2.Z-Vec.Z)/sqrt((Vec2.X-Vec.X)*(Vec2.X-Vec.X)+(Vec2.Z-Vec.Z)*(Vec2.Z-Vec.Z))));
      Vec.Y+=(Speed*((Vec2.Y-Vec.Y)/sqrt((Vec2.Y-Vec.Y)*(Vec2.Y-Vec.Y)+(Vec2.Z-Vec.Z)*(Vec2.Z-Vec.Z))));
      Node->setPosition(Vec);   
}

++

[Guest]

core::vector3df Vec = this*->getPosition();

wtf you do here? this->getPosition

[Spintz]

it should just be getPosition and setPosition, no need for the this operator. However, when using the this operator, it is a pointer to yourself, so you could do this - (*this).getPosition, or this->getPosition. I'm unsure how this*->getPosition even compiles!

[Fy_Hertz]

Okay, It works now but only if my function isn't virtual.

Actually this:

Code: Select all

virtual void A()
{

}

makes my program crash too !

Why do i can't add virutal fonction ?

[FlyHigh]

You are linking against the correct (modified) library file and not the standard one arn't you?

[Guest]

PEOPLE!!! why dont you start learning c++ before you start coding games.... god damn it. but well, its your choice (you dont come far with that)

[Fy_Hertz]

heu... well... that's not going to help me