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#ifndef _OCEAN_VESSEL_H
#define _OCEAN_VESSEL_H

#include <D3DX10.h>

#include "GFSDK_WaveWorks_Types.h"

class OceanVessel
{
public:
	OceanVessel();
	~OceanVessel();

	HRESULT init(FLOAT w, FLOAT h, FLOAT l);
	void updateVesselMotion(GFSDK_WaveWorks_SimulationHandle hSim, FLOAT sea_level, FLOAT time_delta, FLOAT water_scale);
	void renderVessel(const CBaseCamera& camera);

	void setPosition(D3DXVECTOR2 pos);
	void setHeading(D3DXVECTOR2 heading);

	const D3DXMATRIX* getCameraXform() const { return &m_CameraToWorld; }

private:

	// ---------------------------------- GPU shading data ------------------------------------

	// D3D objects
	ID3D10Device* m_pd3dDevice;

	ID3D10Buffer* m_pIB;
	ID3D10Buffer* m_pVB;
	ID3D10InputLayout* m_pLayout;

	UINT m_NumTris;
	UINT m_NumVerts;

	ID3D10Effect* m_pFX;
	ID3D10EffectTechnique* m_pRenderTechnique;
	ID3D10EffectMatrixVariable* m_pMatWorldViewProjVariable;

	D3DXVECTOR2 m_Position;
	D3DXVECTOR2 m_Heading;
	FLOAT m_Draft;
	FLOAT m_KeelLength;
	FLOAT m_Beam;

	// Dynamic state
	FLOAT m_Pitch;
	FLOAT m_PitchRate;
	FLOAT m_Roll;
	FLOAT m_RollRate;
	FLOAT m_Height;
	FLOAT m_HeightRate;

	UINT m_DynamicsCountdown;
	void ResetDynamicState();

	FLOAT m_PitchSpringConstant;
	FLOAT m_PitchDampingConstant;
	FLOAT m_RollSpringConstant;
	FLOAT m_RollDampingConstant;
	FLOAT m_HeightSpringConstant;
	FLOAT m_HeightDampingConstant;

	D3DXMATRIX m_CameraToWorld;
	D3DXMATRIX m_LocalToWorld;
};

#endif	// _OCEAN_VESSEL_H