how do I make an unlimited loop that executes once in c++

Question

I'm creating a game in c++. My current goal is to check the player's health in a forever loop to check if he is dead. While he is, i want it to cout << You are dead. But since the cout << is in a while statement, checking for the health all the time, the result outputs and executes cout << many times. I want it to check for the health forever in a loop, and if the health is < 1, i want it to cout << "You are dead"; only one time. Is there a way to tell the while statement to only execute one time? heres my current while statement:

bool gamerunning = true;

while (gamerunning == true) //While game is running...
{
if (health < 1) //If player is dead...
{
cout << "You are dead";
}
}

Executing this code outputs "you are dead" a bunch of times. I want it to keep checking for the health in this loop but i want the cout to execute once, so it doesnt repeat the same message over and over again. If you can provide a small example on what to do to stop this, it would be highly appreciated. Thanks so much guys!

Answer 1

Sounds like you want to stop the game running when the player is dead, in which case you want this:

while (gamerunning == true) //While game is running...
{
  if (health < 1) //If player is dead...
  {
    cout << "You are dead";
    gamerunning = false;
  }
}

If not, then you can keep another bool that says whether the death output has occurred:

bool deadOutput = false;
while (gamerunning == true) //While game is running...
{
  if (health < 1 && !deadOutput) //If player is dead...
  {
    cout << "You are dead";
    deadOutput = true;
  }
}

Answer 2

Why not something like that?

bool gamerunning = true;

while (gamerunning == true) //While game is running...
{
   if (health < 1) break
}
cout << "You are dead";

If you want to keep your loop you can just add extra bool variable - userDead, make your check only if userDead is false and after writing the output you can set it to true.

Answer 3

How about this?

bool gamerunning = true;
bool output_done = false;

while (gamerunning == true) //While game is running...
{
    if ((health < 1) && (output_done != true)) //If player is dead...
    {
        cout << "You are dead";
        output_done = true;
    }
}

Answer 4

You can use a bool to keep track of whether or not it's happened already:

bool gamerunning = true;
bool printed = false;

while (gamerunning == true) //While game is running...
{
    if (health < 1) //If player is dead...
    {
        if (!printed) {
            cout << "You are dead";
            printed = true;
        }
    }
}

Answer 5

normally you'd have a statemachine....but a simple way is to keep track..

bool gamerunning = true; bool alive = true;

 while (gamerunning == true) //While game is running... { if (health < 1 && alive) //If player is dead... { alive = false; cout << "You are dead"; } } 

Answer 6

bool gamerunning = true;

while (gamerunning == true) //While game is running...
{
    if (health < 1) //If player is dead...
    {
         cout << "You are dead";
         break;
    }
}

or

bool gamerunning = true;

while (gamerunning == true) //While game is running...
{
    if (health < 1) //If player is dead...
    {
         cout << "You are dead";
         gamerunning = false;
    }
}

Answer 7

bool gamerunning = true;
bool playerDead = false

while (gamerunning == true) //While game is running...
{
    if (health < 1) //If player is dead...
    {
       if (!playerDead) 
       {
           cout << "You are dead";
           playerDead = true;
       }
    }
}