what worng with this code

    //!range    switch (val)    {        //on    case 0:         if (weapon)        {            for (int i=0; i<533; i++)            {                DWORD Weapon = *(DWORD*)(weapon +(4*i));                *(float*)( Weapon + WRange ) = this->WeaponInfo[i].Range;            }        }        break;        //XX    case 4:         if (weapon)        {            for (int i=0; i<533; i++)            {                DWORD Weapon = *(DWORD*)(weapon +(4*i));                *(float*)( Weapon + WRange ) = (float)(9999999999999999);             }        }        break;        //All others    default:        {            if (weapon)            {                for (int i=0; i<533; i++)                {                    DWORD Weapon = *(DWORD*)(weapon +(4*i));                    *(float*)( Weapon + WRange) = (float)(2000*val);                 }            }           }        break;    }   } 

BOOL WINAPI Main ( HMODULE hDll, DWORD dwReason, LPVOID lpReserved ) {
    DisableThreadLibraryCalls(hDll);

    if ( dwReason == DLL_PROCESS_ATTACH ) {
        MessageBoxA(0,"Coded by nageeb","Injected", 0);
  CreateThread(0,0,(LPTHREAD_START_ROUTINE)'Wait',0,0,0);
    }

    return true;
}