C#C
C#•2y ago
Ninja Kirby

✅ what is this? i dont know what to call this.

I'm making the game "simon" in winforms, and i ran into a 'problem'.
In my game class, there's 2 lists of integers, the event sequence (the one the player should input) and the player input (the one the player actually inputs.) Whenever the player clicks a corresponding button, I add that button's index to the player inputs list. However, I do this via a lambda expression within a for loop as shown here:

for (int i = 0; i < 4; i++)
{
    int idx = i;

    SimonButton btn = SimonButtons[idx];

    btn.MouseClick += (sender, e) =>
    {
        if (btn.IsLocked)
            return;

        _playerInputs.Add(i); // always results in adding 4 if I use i but not idx?? ????????
        Console.WriteLine(i);
        Console.WriteLine(idx);

        _gameOver = IsGameOver();
    };
}

why is it that if I put i as the .Add() parameter, it's always 4, but not idx, which is always i anyway?
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