Change user name only has two results:
1.Prompt failure (occupied or contains illegal symbols)
2.Directly change success
When the player's first choice was prompted fails
They will try other options, though try not they want those ID
But if successful, will directly change
Estimated number of player might regret
So I suggest something like this:
1.Prompt failure (occupied or contains illegal symbols)
2.Directly change success
When the player's first choice was prompted fails
They will try other options, though try not they want those ID
But if successful, will directly change
Estimated number of player might regret
So I suggest something like this: