Does the Java Key Listener class work with 2 or more keys pressed simultaneously?

Question

I'm working on a game-style project, and need to know if this would work. Also, if Key listener can't do this, is there a class that can?

Answer 1

Say you're programming the arrow keys (that's fairly typical for games). You'll need 4 booleans



leftArrowPressed, upArrowPressed, rightArrowPressed, downArrowPressed



Then register key down and key up events. Obviously key down events set the corresponding boolean to true, and key up events set them false.



Finally, you'll have some sort of timer loop that gets fired every so often, which checks the status of the booleans, and acts accordingly. By doing this, you can respond to multiple keys being pressed at the same time.

Answer 2

This is a question about the hardware (keyboard) not the software.

The Java Key listener will receive a message from the keyboard every time it detects a key stroke.

If two keys are hit at the same time it all depends on what the keyboard does with the keystrokes that matters.

Any good keyboard should buffer the keystrokes and send them to the operating system one at a time.



Have fun.

Answer 3

take the enter from both, use a international second matrix with x and y coordinates, once you press one button have it influence the -x coordinate and once you press the different have it influence the y coordinate, once you press them at the same time both coordinates should be affected, for down and precise do merely it x and -y