Printing a variable within an input command
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I am trying to use an input command to tell a specific player that it is there turn to make a move.
My code looks like this:
move = input(['Player ' current_player ', choose column 1-7 to drop a chip: ']);
The output looks like this:
Player , choose column 1-7 to drop a chip:
Can someone help me get this working correctly?
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Answers (2)
Star Strider
on 11 Nov 2019
Assuming ‘current_player’ is a character array or string variable:
move = input(sprintf('Player %s, choose column 1-7 to drop a chip: ', current_player));
Otherwise, choose the appropriate format descriptor in formatSpec for the ‘current_player’ variable class.
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Image Analyst
on 11 Nov 2019
I think current_player is an integer, and that's why when you create a string like this:
['Player ' current_player ', choose column 1-7 to drop a chip: ']
it's making non-printable characters. Like if current_player was some number less than ASCII 32. You need to use %d or num2str
move = input(sprintf('Player %s, choose column 1-7 to drop a chip: ', current_player));
Alternatively if you don't like sprintf() for some reason, you can use brackets, quotes, and num2str() to create a character array
userPrompt = ['Player ', num2str(current_player), ' choose column 1-7 to drop a chip: '];
move = input(userPrompt);
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