coinflip game only generating 1

[white gazelle]

title

Code:

        function calculateResult(gameId, serverSeed, publicSeed) {
            const combinedSeed = gameId + serverSeed;
            const hash = crypto.createHash('sha256').update(combinedSeed).digest('hex');
            const result = parseInt(hash.slice(0, 16), 16); // Use the first 16 characters of the hash
            const normalizedResult = (result % 2) + 1; // Normalize result to 1 or 2
            console.log(normalizedResult);
            return normalizedResult;
        }```

[peak ingot]

• Consider reading #how-to-get-help to improve your question!
• Explain what exactly your issue is.
• Post the full error stack trace, not just the top part!
• Show your code!
• Issue solved? Press the button!

[sonic hinge]

This should work™️

function calculateResult(gameId, serverSeed, publicSeed) {
  const combinedSeed = gameId + serverSeed + publicSeed;
  const hash = crypto.createHash('sha256').update(combinedSeed).digest('hex');
  const slice = hash.slice(0, 8);
  const resultValue = parseInt(slice, 16);
  const normalizedResult = (resultValue % 2) + 1;
  console.log(normalizedResult);
  return normalizedResult;
}

Here's how i tested it:

for (let i = 0; i < 10; i++) {
  const gameId = `game${i}`;
  const serverSeed = `server${Math.random()}`;
  const publicSeed = `public${Math.random()}`;
  calculateResult(gameId, serverSeed, publicSeed);
}

[hollow heart]

That doesn't generate a fair result because of the % operator and is overcomplicated. Use crypto.randomInt().

[steady fractal]

why can't you just use Math.floor(Math.random() * 2) + 1 instead of... all of this?

does flipping a coin need to by cryptographically secure?

[fallen matrix]

Only if you made a bot that wouldn’t be in line with app directory terms and several local laws in countries discord is reachable from

[hollow heart]

Yes because we can

[fallen matrix]

So: no; or do you also take your canned food to the physics lab to open it with a laser cutter so the lid is cut with a perfect line instead of using a can opener. Just because it‘s possible to do something more complicated and slightly more accurate doesn’t mean it has any use for a mundane task

[neat night]

8 lines for a "1 or 2"... i got brain damage