Issue with ESP

class PointerTo;
class PlayerInfo;
class _Object;
class CILTDrawPrim;
class PointerTo
{
public:
	char pad[4];
	PlayerInfo * first;
    __int32 index;

};


class PlayerInfo
{
public:
	
    __int32 Unknown0; //0000
	__int32 index; //0004
	__int32 Unknown2; //0008
	__int32 Unknown3; //000C
	char Name[12]; //0010
	char unknown5[12];
	_Object* obj; //0028
	char unknown7[76];
	__int8 IsDead; //0078
	__int8 Unknown9; //0079
	__int16 Unknown10; //007A
	char unknown11[488];
	PlayerInfo* Next; //0264
};



class _Object
{
public:
	char Pad[4];
	D3DXVECTOR3 origin;
};
class CILTDrawPrim
{
public:
    virtual void function0(); //
    virtual void function1(); //
    virtual void function2(); //
    virtual void function3(); //
    virtual void function4(); //
    virtual void function5(); //
    virtual void function6(); //
    virtual void function7(); //
    virtual void function8(); //
    virtual void function9(); //
    virtual void function10(); //
    virtual void function11(); //
    virtual void function12(); //
    virtual void function13(); //
    virtual void function14(); //
    virtual void function15(); //
    virtual void function16(); //
    virtual void function17(); //
    virtual void function18(); //
    virtual void function19(); //
    virtual void function20(); //
    virtual void function21(); //
    virtual void function22(); //
    virtual void function23(); //
    virtual void function24(); //
    virtual void function25(); //
    virtual void function26(); //
    virtual void function27(); //
    virtual void function28(); //
    virtual void function29(); //
    virtual void function30(); //
    virtual void function31(); //
    virtual void function32(); //
    virtual void function33(); //
    virtual void function34(); //
    virtual void function35(); //
    virtual void function36(); //
    virtual void function37(); //
    virtual void function38(); //
    virtual void function39(); //
    virtual void function40(); //
    virtual void function41(); //
    virtual void function42(); //
    virtual void function43(); //
    virtual void function44(); //
    virtual void function45(); //
    virtual void function46(); //
    virtual void function47(); //
    virtual void function48(); //
    virtual void function49(); //
    virtual HRESULT Project( float x, float y, float z, D3DXVECTOR3* pProjectOut, D3DXVECTOR3* pTransformOut); //
    char unknown[17232]; //0x0004  
    D3DXMATRIX World; //0x4354  
    D3DXMATRIX View; //0x4394  
    D3DXMATRIX Projection; //0x43D4  
};//Size=0x4414(17428)

bool WorldToScreen(PlayerInfo* pPlayer, D3DXVECTOR3 * pOut )
{
	D3DVIEWPORT9 viewPort = {0};
	pDevice->GetViewport(&viewPort);
	D3DXVECTOR3 vWorld(pPlayer->obj->origin.x ,pPlayer->obj->origin.y, pPlayer->obj->origin.z);
	CILTDrawPrim* pDrawPrim = *(CILTDrawPrim**)0x7FF010;
	D3DXVec3Project( pOut, &vWorld, &viewPort, &pDrawPrim->Projection, &pDrawPrim->View, &pDrawPrim->World );
	return ( pOut->z < 1.0f );
}

typedef PlayerInfo* (__thiscall *lpGetPlayerByIndex)(unsigned long ulThis,int index, int unk);
	lpGetPlayerByIndex GetPlayerByIndex;

	GetPlayerByIndex = (lpGetPlayerByIndex)(0x3715DD10);
unsigned long ulThis = *(unsigned long*)(0x3780A0A8);
	char *szFormat = new char[ 256 ];

	if(*(int*)0x3781886C == 1) {
	for ( int i = 0; i < 16; i++ )
		{
			PlayerInfo* pPlayer = GetPlayerByIndex( ulThis,i,0);
			
		
				sprintf(szFormat,"%s",pPlayer->Name);

				D3DXVECTOR3 Position;
				if(WorldToScreen(pPlayer, &Position))
				
				{
					DrawText(Position.x, Position.y-60,Red,szFormat, pDevice);
					
				}

	}}

void DrawText(int x,int y,DWORD color,char *text, LPDIRECT3DDEVICE9 pDevice){
RECT rect;
SetRect( &rect, x, y, x, y );
d3dfont->DrawTextA(NULL,text,-1,&rect, DT_LEFT|DT_NOCLIP, color);
}