F:/My Projects/LSEngine/Modules/LSEngine/Src/Camera/LSECamera.h

#ifndef __LSE_CAMERA_H__
#define __LSE_CAMERA_H__

#include "../LSEEngine.h"
#include "../Entity/LSEActor.h"
#include "Frustum/LSMFrustum.h"

namespace lse {

        // == Enumerations.
        enum LSE_CAM_TYPE {
                LSE_CT_PERSP,                                                   
                LSE_CT_ORTHO,                                                   
        };

        class CCamera : public CActor {
        public :
                // == Various constructors.
                LSE_CALLCTOR                                                    CCamera();
                virtual LSE_CALLCTOR                                    ~CCamera();


                // == Functions.
                LSVOID LSE_CALL                                                 SetPerspParms( LSREAL _fFov, LSREAL _fAspect,
                        LSREAL _fNearPlane, LSREAL _fFarPlane );

                LSVOID LSE_CALL                                                 SetOrthoParms( LSREAL _fLeft, LSREAL _fTop,
                        LSREAL _fRight, LSREAL _fBottom, LSREAL _fNearPlane = -LSM_ONE, LSREAL _fFarPlane = LSM_ONE );

                virtual LSUINT32 LSE_CALL                               EntityType() const;

                LSVOID LSE_CALL                                                 Update();

                LSE_INLINE const CMatrix4x4 & LSE_CALL  ViewMatrix() const;

                LSE_INLINE const CMatrix4x4 & LSE_CALL  InvViewMatrix() const;

                LSE_INLINE const CMatrix4x4 & LSE_CALL  ProjMatrix() const;

                LSE_INLINE const CMatrix4x4 & LSE_CALL  ViewProjMatrix() const;

                LSE_INLINE const CFrustum & LSE_CALL    Frustum() const;

                LSE_INLINE LSREAL LSE_CALL                              Fov() const;

                LSE_INLINE LSREAL LSE_CALL                              NearPlane() const;

                LSE_INLINE LSREAL LSE_CALL                              FarPlane() const;

                LSE_INLINE LSREAL LSE_CALL                              Aspect() const;


        protected :
                // == Members.
                CMatrix4x4                                                              m_mViewMatrix;

                CMatrix4x4                                                              m_mProjMatrix;

                CMatrix4x4                                                              m_mViewProjMatrix;

                CFrustum                                                                m_fFrustum;

                LSE_CAM_TYPE                                                    m_ctCamType;

                LSREAL                                                                  m_fNear;

                LSREAL                                                                  m_fFar;

                LSREAL                                                                  m_fFov;

                LSREAL                                                                  m_fAspect;

                LSREAL                                                                  m_fMinX;

                LSREAL                                                                  m_fMinY;

                LSREAL                                                                  m_fMaxX;

                LSREAL                                                                  m_fMaxY;

                LSUINT32                                                                m_ui32InitialScrW;

                LSUINT32                                                                m_ui32InitialScrH;

                LSUINT32                                                                m_ui32CurScrW;

                LSUINT32                                                                m_ui32CurScrH;


                // == Functions.
                LSVOID LSE_CALL                                                 AdjustToCurScreenSize();


        private :
                typedef CActor                                                  Parent;
        };


        // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
        // DEFINITIONS
        // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
        // == Types.
        typedef CSharedPtr<CCamera>                                     CSharedCameraPtr;

        // == Functions.
        LSE_INLINE const CMatrix4x4 & LSE_CALL CCamera::ViewMatrix() const {
                return m_mViewMatrix;
        }

        LSE_INLINE const CMatrix4x4 & LSE_CALL CCamera::InvViewMatrix() const {
                return m_mWorldTrans;
        }

        LSE_INLINE const CMatrix4x4 & LSE_CALL CCamera::ProjMatrix() const {
                return m_mProjMatrix;
        }

        LSE_INLINE const CMatrix4x4 & LSE_CALL CCamera::ViewProjMatrix() const {
                return m_mViewProjMatrix;
        }

        LSE_INLINE const CFrustum & LSE_CALL CCamera::Frustum() const {
                return m_fFrustum;
        }

        LSE_INLINE LSREAL LSE_CALL CCamera::Fov() const {
                return m_fFov;
        }

        LSE_INLINE LSREAL LSE_CALL CCamera::NearPlane() const {
                return m_fNear;
        }

        LSE_INLINE LSREAL LSE_CALL CCamera::FarPlane() const {
                return m_fFar;
        }

        LSE_INLINE LSREAL LSE_CALL CCamera::Aspect() const {
                return m_fAspect;
        }

}       // namespace lse

#endif  // __LSE_CAMERA_H__