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camera.h

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// ----------------------------------------------------------------------- //
//
// MODULE  : camera.h
//
// PURPOSE : CCamera - Definition
//
// CREATED : 12/20/00
//
// (c) 2000 LithTech, Inc.  All Rights Reserved
//
// ----------------------------------------------------------------------- //

#ifndef __CAMERA_H__
#define __CAMERA_H__

// includes
#include "i_event_callback.h"

// Engine includes
#include <ltbasedefs.h>


enum ECameraState
{
    CAMS_FIRST_PERSON = 0,
    CAMS_THIRD_PERSON,

    CAMS_NUM_STATES
};

enum ECameraViewportType
{
    CAMV_FULLSCREEN = 0,
    CAMV_HORIZONTAL_TOP,
    CAMV_HORIZONTAL_BOTTOM,
    CAMV_VERTICAL_LEFT,
    CAMV_VERTICAL_RIGHT,
    CAMV_QUARTER_TOPLEFT,
    CAMV_QUARTER_TOPRIGHT,
    CAMV_QUARTER_BOTTOMLEFT,
    CAMV_QUARTER_BOTTOMRIGHT,
};

class CCamera : public IEventCallback
{
  public:
    // Construction / destruction
    CCamera();
    virtual ~CCamera();

    void            Init(ECameraViewportType eType = CAMV_FULLSCREEN);
    void            Term();
    LTRESULT        CreateCamera();

    void            OnCommandOn(int32 command, uint32 nActCmd);
    void            OnCommandOff(int32 command, uint32 nActCmd);

    LTRESULT        Update(float fFrameTime);
    LTRESULT        PhysicsUpdate(float fFrameTime);
    virtual void    Event(uint32 nEvent, float fFrameTime, float fGameTime,
                        IEventData *pEventData, uint32 nPriority, 
                        ECallbackType eCT,
                        uint32 nCountRemaining, float fTimeRemaining, 
                        float fLoopTime);
    

    HLOCALOBJ       GetCameraHandle()               { return m_hCamera; }

    void            SetRotation(LTOrientation oRot);
    LTOrientation   GetRotation();
    LTVector3f      GetPosition();
    
    void            SetState(ECameraState state)    { m_eState = state; }
    uint32          GetState()                      { return m_eState; }
    void            CycleState();
    
    void            SetCameraViewport(uint32 nPosition);
    
    LTRESULT        HandleInput();
    void            AdjustCamera();
    
    LTRESULT        Render();
    
    void            SetSyncObject(HLOCALOBJ hObject) {m_hSyncObject = hObject;};
    HLOCALOBJ       GetSyncObject() {return m_hSyncObject;};
    void            SetSyncRotation(bool bSR = true) {m_bSyncRotation = bSR;};
    bool            GetSyncRotation() {return m_bSyncRotation;};
    
  protected:
    HLOCALOBJ       m_hCamera;  // Handle to engine object
    uint32          m_eState;   // Camera state (one of ECameraState)

      HLOCALOBJ     m_hSyncObject;
      bool          m_bSyncRotation;
};


#endif  // __CAMERA_H__

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