Instantly share code, notes, and snippets.
A simple way to keep track of which keys are pressed at any one time.
| var PressedKeys = function($elt) { |
| var pressed = {}; |
| ($elt || $(document)).on('keydown keyup', function(evt) { |
| pressed[evt.keyCode] = (evt.type == 'keydown'); |
| }); |
| return pressed; |
| }; |
| // example |
| var pressedKeys = PressedKeys($('canvas.game')); |
| (function loop() { |
| if (pressedKeys['39']) { |
| // do something right |
| } else if (pressedKeys['37'] { |
| // do something left |
| } |
| window.setTimeout(loop, 80); |
| })(); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment