#pragma once
#include "StdAfx.h"
#include <vector>
#include "float3.h"
#include "LevelElement.h"
#include "d3dutil.h"
#include "vertex.h"
#include "Light.h"
#include "GraphCamera.h"

class Waves: public LevelElement
{
public:
    Waves(Level* pLevel);
    virtual ~Waves();

        void init(DWORD m, DWORD n, float dx, float dt, float speed, float damping,D3DXVECTOR3 pos);
        void update (float dt);
        void disturb();
        void draw(GraphCamera *pGraphCamera);
        void buildFX();
        void buildVertexLayouts();
        virtual void Initialize(ContentManager *pContentManager){};

        virtual void Tick(const InputState & refInputState){};

        virtual void Draw(const RenderContext* pRenderContext){};
private:
    DWORD m_NumRows;
    DWORD m_NumCols;

    D3DXMATRIX mWavesWorld;

    DWORD m_NumVertices;
    DWORD m_NumFaces;

    // simulatie constanten die we kunnen voorberekenen
    GraphCamera* m_pGraphCamera;
    float m_K1;
    float m_K2;
    float m_K3;

    float m_TimeStep;
    float m_SpatialStep;



    D3DXVECTOR3* m_PrevSolution;
    D3DXVECTOR3* m_CurrSolution;
    D3DXVECTOR3* m_Normals;

    ID3D10Buffer* m_VB;
    ID3D10Buffer* m_IB;

    Level* m_pLevel;

    ID3D10Effect* m_FX;
    ID3D10EffectTechnique* m_Tech;

    ID3D10EffectMatrixVariable* mfxWVPVar;
    ID3D10EffectMatrixVariable* mfxWorldVar;
    ID3D10EffectVariable* mfxEyePosVar;
    ID3D10EffectVariable* mfxLightVar;
    ID3D10EffectScalarVariable* mfxLightType;

    int mLightType; // 0 (parallel), 1 (point), 2 (spot)

    ID3D10InputLayout* m_VertexLayout;

    D3DXMATRIX mView;
    D3DXMATRIX mProj;
    D3DXMATRIX mWVP;

    Light mLights[1];

};