Attached camera

[Bazzilic]

Hi all!
So the problem is - i want my camera to fly around in the world, but it must look at the hero all the time. How can i attach camera target to hero, so it wouldn't be affected by camera animators?

[Klasker]

A scene node animator can easily handle that:

Code: Select all

// In CCameraTargetAnimator.h
#ifndef CCAMERATARGETANIMATOR_H_INCLUDED
#define CCAMERATARGETANIMATOR_H_INCLUDED

#include <irrlicht.h>

namespace irr
{
namespace scene
{

class CCameraTargetAnimator : public ISceneNodeAnimator
{
public:
    
    void animateNode( ISceneNode* node, u32 timeMs )
    {
        ICameraSceneNode* camera = (ICameraSceneNode*)node;
        if ( Target != 0 )
        {
            camera->setTarget( Target->getAbsolutePosition() );
        }
    }
    
    void setTarget( ISceneNode* target )
    {
        Target = target;
    }
    ISceneNode* getTarget() const
    {
        return Target;
    }
    
    CCameraTargetAnimator( ISceneNode* target )
    {
        Target = target;
    }
    
private:
    ISceneNode* Target;
};

}
}

#endif

Use it like this:

Code: Select all

#include "CCameraTargetAnimator.h"

...

    ISceneNode* hero = ...
    ICameraSceneNode* camera = ...
    CCameraTargetAnimator* anim = new CCameraTargetAnimator(hero);
    camera->addAnimator(anim);
    anim->drop();