#include <stdio.h>
#include <stdlib.h>

char print_intro();
void print_directions();
char ask_attack();
void do_turn(int *HP, int *EN, int player);

int main()
{
   int pHP = 100, pEN = 20;
   int cHP = 100;
   int turn = 0;

   if(print_intro() == 'n')
   {
       printf("Thanks for playing!\n");
       return 0;
   }

   system("cls");

   print_directions();

   system("cls");

   do
   {
       if(turn == 0)
       {
           do_turn(&cHP, &pEN, turn);
           turn++;
       }
       else if(turn == 1)
       {
           do_turn(&pHP, 0, turn);
           turn--;
       }
   }while(pHP >= 0 && cHP >= 0);

   if(cHP >= 0)
   {
       printf("Sorry you lost!\n");
   }
   else if(pHP >= 0)
   {
       printf("Congrats you won!\n");
   }

   return 0;
}

char print_intro()
{
   char input;

   printf("Welcome to the most awesome best game ever made!\n");
   printf("Purpose of this game is to kill the npc before he kills you\nin a turn based fashion\n\n");
   printf("Would you like to play? y/n: ");

   input = fgetc(stdin);
   getchar();

   return input;
}

void print_directions()
{
   printf("To play simply enter in a command and it will attack your oponent.\n");
   printf("You have two attacks. A basic punch and a special energy attack which consumes 5 energy per attack but deals more damage.\n");
   printf("The first one to zero HP loses good luck!\n\nPress any key to continue...\n\n");
   getchar();
}

char ask_attack()
{
   char input;

   printf("\n[1] Punch\n");
   printf("[2] Kick\n");
   printf("[3] Fireball\n");
   printf("Which attack do you want to do: ");

   input = fgetc(stdin);
   getchar();

   printf("\n\n");

   return input;
}

void do_turn(int *HP, int *EN, int player)
{
   char attack = 0;
   int dmg = 0;

   if(player == 0)
   {
       attack = ask_attack();
       while(attack != '1' && attack != '2' && attack != '3')
       {
           printf("Invalid attack. Please try again.\n");
           attack = ask_attack();
       }

       if(attack == '1') //punch
       {
           dmg = rand()%5;
       }
       else if(attack == '2') //kick
       {
           dmg = rand()%10+2;
       }
       else if(attack == '3' && *EN >= 2)
       {
           dmg = rand()%20+10;
           *EN -= 2;
       }

       printf("You delt %d damage!\n", dmg);
       *HP -= dmg;
       if(*HP <=0)
       {
           printf("NPC HP is at %d/100 and you have %d energy\n\n", 0, *EN);
       }
       else
       {
           printf("NPC HP is at %d/100 and you have %d energy\n\n", *HP, *EN);
       }
   }
   else
   {
       dmg = rand()%20+1;
       printf("NPC delt %d damage!\n", dmg);
       *HP -= dmg;
       if(*HP <=0)
       {
           printf("Your HP is at %d/100\n\n", 0);
       }
       else
       {
           printf("Your HP is at %d/100\n\n", *HP);
       }
   }
}

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <windows.h>

BOOL InjectLibrary(HANDLE hProcess, char *fnDll) {

BOOL success = FALSE;
HANDLE hThread = NULL;
char *fnRemote = NULL;
FARPROC procLoadLibraryA = NULL;

size_t lenFilename = strlen(fnDll) + 1;

/* Allocate space in the remote process */
fnRemote = (char *)VirtualAllocEx(hProcess, NULL, lenFilename, MEM_COMMIT, PAGE_READWRITE);

if (fnRemote) {
 if (WriteProcessMemory(hProcess, fnRemote, fnDll, lenFilename, NULL)) {  //write the dll to the processes memory

  procLoadLibraryA = GetProcAddress(GetModuleHandle("Kernel32"), "LoadLibraryA");  //load the get process address functions address
  hThread = CreateRemoteThread(hProcess, NULL, 0, (LPTHREAD_START_ROUTINE)procLoadLibraryA, fnRemote, 0, NULL);  //create a remote thread in the process to start the dll

  if (hThread) {
   WaitForSingleObject(hThread, INFINITE);
   success = TRUE;
  }
 }

 VirtualFreeEx(hProcess, fnRemote, 0, MEM_RELEASE);  //release memory
}

return success;
}

int main() {
DWORD pid;

HWND hwnd = FindWindow(0, "ABCD");  //find this HWND of the game
GetWindowThreadProcessId(hwnd, &pid);  //get its process id to send to the injector function.
HANDLE handle = OpenProcess(PROCESS_ALL_ACCESS, FALSE, pid);

if(InjectLibrary(handle, "GameHack.dll"))  //inject our dll by passing it to our function
{
    printf("Game successfully injected!\n");
} else {
       printf("Game unsuccessfully injected!");
}

return 0;
}