MdxAnimInstance.h

//-----------------------------------------------------------------------------
// File: MultiAnimation.h
//
// Desc: Header file for the MultiAnimation library.  This contains the
//       declarations of
//
//       MultiAnimFrame              (no .cpp file)
//       MultiAnimMC                 (MultiAnimationLib.cpp)
//       CMultiAnimAllocateHierarchy (AllocHierarchy.cpp)
//       CMultiAnim                  (MultiAnimationLib.cpp)
//       CAnimInstance               (AnimationInstance.cpp)
//
// Copyright (c) Microsoft Corporation. All rights reserved
//-----------------------------------------------------------------------------
#pragma once
#include "BaseObject.h"
#include "mdxfile/ModelUtils.h"
#include "AnimInstanceBase.h"

namespace ParaEngine
{
struct AnimInstance
{
public:
    int nCurrentAnim;
    int nNextAnim;      
    int currentFrame;   // an absolute MDX frame 
    int blendingAnim;   
    int blendingFrame;  // an absolute MDX frame with which the current motion is blended
    float blendingFactor; // [0,1), blendingFrame*(blendingFactor)+(1-blendingFactor)*currentFrame
    
    DWORD       dwShowMeshes;   

public:
    AnimInstance()
    {
        nCurrentAnim = 0;
        nNextAnim = -1;
        currentFrame = -1;
        blendingAnim = -1;
        blendingFrame = 0;
        blendingFactor = 0;
        dwShowMeshes = 0xffffffff; 
    };

    void ShowMesh(BOOL bShow, int nIndex)
    {
        if(bShow)
            dwShowMeshes = dwShowMeshes | (0x1<<nIndex);
        else
            dwShowMeshes = dwShowMeshes & (~(0x1<<nIndex));
    };
};

struct MDXEntity;
class ShadowVolume;
struct LightParams;
class CMdxAniInstance : public CAnimInstanceBase
{
public:
    CMdxAniInstance(void);
    ~CMdxAniInstance(void);
    
    AnimInstance m_aiAnimIntance;
    
    MDXEntity* m_ppModel;
public:
    void CopyAnimInfoToParaXModel();
    void SaveAnimInfoFromParaXModel();

public:
    // -- for init and delete
    HRESULT InitObject(MDXEntity* ppModel);
    AssetEntity* GetPrimaryAsset(){return (AssetEntity*)m_ppModel;};                // used as KEY for batch rendering
    
    // -- CAnimInstanceBase virtual functions

    virtual void LoadAnimation(const char * sName, float * fSpeed,bool bAppend = false);
    virtual void LoadAnimation(int nIndexAnim, float * fSpeed,bool bAppend = false);
    virtual void LoadDefaultStandAnim(float * fSpeed);
    virtual void LoadDefaultWalkAnim(float * fSpeed);


    virtual void ShowMesh(BOOL bShow, int nIndex);
    virtual void ShowMesh(DWORD dwBitfields);
    
    virtual void AdvanceTime( double dTimeDelta );
    virtual HRESULT Draw( SceneState * sceneState, const Matrix4* mxWorld);
    virtual void BuildShadowVolume(SceneState * sceneState, ShadowVolume * pShadowVolume, LightParams* pLight, Matrix4* mxWorld);

    virtual void SetSizeScale(float fScale);
    virtual void GetCurrentRadius(float* fRadius);
    virtual void GetCurrentSize(float * fWidth, float * fDepth);
    virtual void SetSpeedScale( float fScale );
    virtual void GetCurrentSpeed (float* fSpeed);
    virtual void GetSpeedOf(const char * sName, float * fSpeed);
};
}