#ifndef FUNNY_MATERIALS_H
#define FUNNY_MATERIALS_H
#include "datamap.h"
#include "stdint.h"

#define TEXTURE_INVALID 0
#define TEXTURE_NO_TEXTURE -1

namespace FMat
{
	typedef int32_t XMTexture;
	struct XMFLOAT2
	{
		float x;
		float y;
	};
	struct XMFLOAT3
	{
		float x;
		float y;
		float z;
	};
	struct XMFLOAT4
	{
		float x;
		float y;
		float z;
		float w;
	};
	struct XMFLOAT4x4
	{
		XMFLOAT4 row1;
		XMFLOAT4 row2;
		XMFLOAT4 row3;
		XMFLOAT4 row4;
	};
}

class CBaseMaterial
{
public:
	DECLARE_CLASS_NOBASE(CBaseMaterial)
	DECLARE_DATADESC_NOBASE()
	virtual const char *GetShaderPath() { return NULL; };
	virtual void *GetDataPtr() { return 0; };
	virtual size_t GetDataSize() { return 0; };

	uint64_t m_uHash;
};

typedef CBaseMaterial *( *InstantiateMaterialFn )( void );
class CFunnyMaterialRegistry
{
public:
	CFunnyMaterialRegistry( InstantiateMaterialFn fn, const char *szName );

	InstantiateMaterialFn m_CreateFn;
	const char *m_szName;

	CFunnyMaterialRegistry *m_pNext;
};
CBaseMaterial *CreateMaterial( const char *szName );

#define DECLARE_SHADER(path) \
	virtual const char *GetShaderPath() override { return path; }; \
	virtual void *GetDataPtr() override { return (char*)this+_class_offsetof(ThisClass, m_uHash); } \
	virtual size_t GetDataSize() override { return sizeof(ThisClass)-_class_offsetof(ThisClass, m_uHash); }

#define DEFINE_MATERIAL( className, name ) \
	static CBaseMaterial *__Create##className##_material() { return ( CBaseMaterial* )( new className ); }; \
	static CFunnyMaterialRegistry __CreateMaterail##className##_registry( __Create##className##_material, name );

#endif