This is an unlimited health hack I made for Call of Duty Black Ops in single player mode. It replaces a small section of assembly with no operation codes. I was wondering how my coding and commenting style are, and whether there is a better way to write this.

#include <Windows.h> #include <iostream> #include <TlHelp32.h>  const char* PROCESS_NAME = "BlackOps.exe"; const unsigned short POLL_RATE = 100;  const unsigned int HEALTH_ADDRESS_1 = 0x7DADD0; const char* HEALTH_1_OP_CODES = "\x89\x85\x84\x01\x00\x00"; const char* HEALTH_1_NEW_OP_CODES = "\x90\x90\x90\x90\x90\x90"; const unsigned short HEALTH_1_OP_CODE_LENGTH = 6;  DWORD get_process_id_by_process_name(const char* process_name_) {     PROCESSENTRY32 process_entry = {sizeof(PROCESSENTRY32)};     HANDLE processes_snapshot;     DWORD process_id = 0;      // search for the process name     processes_snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);     if (Process32First(processes_snapshot, &process_entry))     {         do         {             if (!strcmp(process_entry.szExeFile, process_name_))             {                 process_id = process_entry.th32ProcessID;                 break;             }         } while (Process32Next(processes_snapshot, &process_entry));     }      // clean up resources     CloseHandle(processes_snapshot);      return process_id; }  int main(int argc_, char** argv_) {     // get game process id     std::cout << "Looking for game..." << std::endl;     DWORD process_id = NULL;     while (!process_id)     {         process_id = get_process_id_by_process_name(PROCESS_NAME);         Sleep(POLL_RATE);     }     std::cout << "Game found." << std::endl;      // open game handle     HANDLE process_handle = OpenProcess(PROCESS_ALL_ACCESS, FALSE, process_id);     if (process_handle)     {         std::cout << "Handle obtained to game" << std::endl;     }     else     {         std::cout << "Handle not obtained to game." << std::endl;         exit(1);     }      bool hack_enabled = false;     bool need_to_update_hack = false;     bool need_to_update_screen = true;     while (true)     {         if (need_to_update_screen)         {             system("cls");             std::cout << "[F8] - " << (hack_enabled ? "(on )" : "(off)") << " Health Hack" << std::endl;             need_to_update_screen = false;         }          if (GetAsyncKeyState(VK_F8))         {             hack_enabled = !hack_enabled;             need_to_update_hack = true;             need_to_update_screen = true;         }          if (hack_enabled && need_to_update_hack)         {             WriteProcessMemory(process_handle, (LPVOID)HEALTH_ADDRESS_1, HEALTH_1_NEW_OP_CODES, HEALTH_1_OP_CODE_LENGTH, NULL);             need_to_update_hack = false;         }         else if (need_to_update_hack)         {             WriteProcessMemory(process_handle, (LPVOID)HEALTH_ADDRESS_1, HEALTH_1_OP_CODES, HEALTH_1_OP_CODE_LENGTH, NULL);             need_to_update_hack = false;         }          Sleep(POLL_RATE);     } }