// Key states: 0 - not pressed, 1 - just pressed, 2 - kept pressed
var keys = {};
var keyConfig =
[
	"keyLeft", 37, "Move left",
	"keyRight", 39, "Move right",
	"keyUp", 38, "Move up",
	"keyDown", 40, "Move down",
	"keyFocus", 67, "Toggle looking glass following the player",
	"keyAttack", 90, "Punch"
];

function UpdateKeys()
{
	for(var i = 0; i < keyConfig.length; i += 3)
	{
		var key = keys[keyConfig[i]];
		var _pressed = pressed[keyConfig[i + 1]];
		if(key)
		{
			if(_pressed)
			{
				if(key.state == 0) key.state = 1;
				else if(key.state == 1) key.state = 2;
			}
			else key.state = 0;
		}
		else
		{
			keys[keyConfig[i]] = {};
			key = keys[keyConfig[i]];
			key.state = 0;
		}
	}
}