Questing hot keys for Candy Box !

candykeys.js

// Automatically creates hot keys for each potion/scroll/magic item you can use in a quest using the
// first available letter in the button's text. Special exclusions are made for keys that are used by
// the game itself — if you don't know why, I won't spoil it for you.
// Hot keys can be enabled or disabled by a button at the top of the page, or by pressing CTRL+K or
// CMD+K.
!function (undefined) {
	var enabled = false, bindings = {}, reserved = 'IK';

	$.each(potions.list, function (i, potion) {
		var text = potion.buttonText,
			action = potion.action,
			pos = 0,
			chrUp, chr;
		do {
			chr = text.charAt(pos++);
			chrUp = chr.toUpperCase();
		}
		while (chrUp && (bindings[chrUp] || reserved.indexOf(chrUp) > -1));
		if (chrUp) {
			potion.buttonText = text.replace(chr, '<u>' + chr + '</u>');
			bindings[chrUp] = function () {
				if (!enabled) return;
				var $element = $('#quest_potions').find('[onclick="' + action + '"]');
				if ($element.length > 0 && !$element.prop('disabled')) $element.click();
			}
		}
	});
	potions.updateOnPage();

	$(document).on('keydown.candykeys', function (ev) {
		(bindings[String.fromCharCode(ev.which)] || $.noop)();
		if ((ev.ctrlKey || ev.metaKey) && ev.which === "K".charCodeAt(0)) {
			toggleKeys();
		}
	});

	$('<button id="candykeys-toggle"/>')
		.css({fontSize: '9px', fontFamily: 'monospace', backgroundColor: 'white',
			position: 'absolute', top: '5px', right: '111px'})
		.click(function () { toggleKeys(); })
		.insertBefore('button.toggle');
	toggleKeys(true);

	function toggleKeys(state) {
		enabled = state || state === undefined && !enabled;
		$('#quest_potions').find('u').css('text-decoration', enabled ? 'underline' : 'none');
		$('#candykeys-toggle').html(enabled ? 'Hot keys : on&nbsp;' : 'Hot keys : off');
	}
}();