Interface describing basic camera to be used in 3D space.

You can find more information in comments below.

template<class TYPE>
    class ICamera
    {
    public:
        virtual ICameraListener<TYPE> *getListener() = 0; // Return assigned change listener 
        virtual math::TVec3<TYPE> getPosition() = 0; // Return camera position 
        virtual PROJECTION_MODE getProjectionMode() = 0; // Return camera projection mode 
        virtual TViewport<TYPE> getViewport() = 0; // Return viewport 
        virtual TYPE getFOV() = 0; // Return field of view 
        virtual TYPE getAspect() = 0; // Return aspect ratio 
        virtual TYPE getNearPlane() = 0; // Return near clip plane 
        virtual TYPE getFarPlane() = 0; // Return far clip plane 
        virtual math::TVec3<TYPE> getDirection() = 0; // Camera look/walk direction 
        virtual math::TVec3<TYPE> getDirectionRight() = 0; // Return direction to the camera right 
        virtual math::TVec3<TYPE> getDirectionUp() = 0; // Return direction to the camera up 
        virtual math::TMat4<TYPE> getProjectionMatrix() = 0; // Return projection matrix 
        virtual math::TMat4<TYPE> getViewMatrix() = 0; // Return camera matrix 
        virtual math::TMat4<TYPE> getMatrix() = 0; // Return combined view-projection matrix 
    
        virtual void setListener(ICameraListener<TYPE> *value) = 0; // Assign new listener 
        virtual bool setPosition(const math::TVec3<TYPE> &value) = 0; // Set camera position 
        virtual bool setProjectionMode(const PROJECTION_MODE value) = 0; // Set projection mode 
        virtual bool setViewport(const TViewport<TYPE> &value) = 0; // Set viewport 
        virtual bool setFOV(const TYPE value) = 0; // Set field of view 
        virtual bool setAspect(const TYPE value) = 0; // Set aspect ratio 
        virtual bool setNearPlane(const TYPE value) = 0; // Set near clip plane 
        virtual bool setFarPlane(const TYPE value) = 0; // Set far clip plane 
    
        virtual void Release() = 0; // Delete camera 
    
        virtual bool Planes(const TYPE near_plane, const TYPE far_plane) = 0; // Set clip planes 
        virtual bool Frustum(const TViewport<TYPE> &viewport) = 0; // Set "frustum" projection mode 
        virtual bool Perspective(const TYPE fov, const TYPE aspect) = 0; // Set "perspective" projection mode 
        virtual bool Ortho(const TViewport<TYPE> &viewport) = 0; // Set orthographical projection mode 
        virtual bool MoveForward(const TYPE delta) = 0; // Move camera forward 
        virtual bool MoveBackward(const TYPE delta) = 0; // Move camera backward 
        virtual bool MoveLeft(const TYPE delta) = 0; // Move camera left 
        virtual bool MoveRight(const TYPE delta) = 0; // Move camera right 
        virtual bool MoveUp(const TYPE delta) = 0; // Move camera up 
        virtual bool MoveDown(const TYPE delta) = 0; // Move camera down 
    };