Camera.h

#pragma once
#include <glm\glm.hpp>
#include <glm\gtc\matrix_projection.hpp>
#include <glm\gtc\matrix_transform.hpp>

class Camera
{
public:
        Camera(void);
        ~Camera(void);

        void SetProjection(float left, float right, float bottom, float top, float near_plane, float far_plane);
        void SetProjection(float fovy, float aspect_ratio, float near_plane, float far_plane);
        glm::mat4 GetProjection();
        glm::mat4 GetViewMatrix();      //Diese Methode setzt CalcPlanes nicht mit!!!
        glm::mat4 GetViewMatrix(unsigned int i);        //Diese Methode setzt CalcPlanes nicht mit!!!
        void SetViewMatrix(glm::vec3 p, glm::vec3 l, glm::vec3 u);      //Diese Methode setzt CalcPlanes immer mit.
        void SetViewMatrix(glm::mat4 matrix);

        glm::mat4 GetOldProjection();
        glm::mat4 GetOldViewMatrix();   

        glm::vec3 GetPosition();
        glm::vec3 GetUpVector();
        glm::vec3 GetCenterPositon();

        void SetActAsOldViewMatrix();
        void SetActAsOldProjectionMatrix();

        glm::mat4 LookAt(glm::vec3 eye, glm::vec3 center, glm::vec3 up);

        int SetViewport(int width, int height);
        int GetWidth();
        int GetHeight();

        void SetEnvironmentMapping(bool env);
        void SetViewMatrix(int z, glm::vec3 eye, glm::vec3 center, glm::vec3 up);

private:
        glm::mat4 m_projection;
        glm::mat4 m_viewMatrix;
        glm::mat4* m_viewMatrix_cpy;

        glm::mat4 m_old_ViewMatrix;
        glm::mat4 m_old_ProjectionMatrix;

        float nearPlane;
        float farPlane;

        int m_width;
        int m_height;

private:
        glm::vec3 m_position;
        glm::vec3 m_center;
        glm::vec3 m_up;

        bool isEnvironmentMapping;
};