class Transformations;
class TransData;



class Transformations //CE045C
{
public:
		char unknown0[144]; //0x0000
	TransData* pTran; //0x0090

};

class TransData
{
public:
	char unknown0[4]; //0x0000
	D3DXVECTOR3 InvView_right; //0x0004
	D3DXVECTOR3 InvView_up; //0x0010
	D3DXVECTOR3 InvView_forward; //0x001C
	D3DXVECTOR3 InvView_Translation; //0x0028

	D3DXVECTOR2 pad; //0x0034   (x = 1,y = -1)


	//http://msdn.microsoft.com/en-us/library/aa915188.aspx
        D3DXVECTOR3 ViewPortMatrix1; //0x003C  (x= viewPort.Width/2)
	D3DXVECTOR3 ViewPortMatrix2; //0x0048 -(y= viewPort.Height/2)
	D3DXVECTOR3 ViewPortMatrix3; //0x0054(x=viewPort.X + CenterScreenX,y=viewPort.Y + CenterScreenY,z=viewPort.MinZ)
	D3DXVECTOR3 ViewPortMatrix_unk; //not sure

	D3DXVECTOR3 ProjO1;//proj1.x  0x006C
        D3DXVECTOR3 ProjO2;//proj2.y  0x0078
	D3DXVECTOR3 ProjO3;//proj3.z  0x0084     =1.0001
	D3DXVECTOR3 ProjO4;//proj4.z  0x0090

	D3DXVECTOR3 Proj1;//proj1.x  0x009C
        D3DXVECTOR3 Proj2;//proj2.y  0x00A8
	D3DXVECTOR3 Proj3;//proj3.z  0x00B4     = 1.0
	D3DXVECTOR3 Proj4;//proj4.z  0x00C0

	D3DXVECTOR3 ProjD1;//   0x00CC     x = 1/Proj._11
	D3DXVECTOR3 ProjD2;//   0x00D8     y = 1/Proj._22
	D3DXVECTOR3 ProjD3;//   0x00E4     z=  1
	D3DXVECTOR3 ProjD4;//   0x00F0

	D3DXVECTOR2 pad1; //.x bigass float  0x00FC

	D3DXVECTOR3 View_right; //0x0104    not the view
        D3DXVECTOR3 View_up; //0x0110
	D3DXVECTOR3 View_forward; //0x011C
	D3DXVECTOR3 View_Translation; //0x0128


};


D3DXVECTOR3 W2SN(TransData* p, D3DXVECTOR3 in)
{
	D3DXVECTOR3 out,temp;

	::D3DXVec3Subtract(&temp,&in,&p->InvView_Translation);
	float x = ::D3DXVec3Dot(&temp,&p->InvView_right);
        float y = ::D3DXVec3Dot(&temp,&p->InvView_up);
        float z = ::D3DXVec3Dot(&temp,&p->InvView_forward);


        out.x =  p->ViewPortMatrix3.x * (1+(x / p->ProjD1.x / z));
        out.y =  p->ViewPortMatrix3.y * (1-(y / p->ProjD2.y / z));
        out.z =  z;

	return out;
}