keyboard.js

document.addEventListener("keydown", keyDown, false);
var userVal = 0;

function keyDown(e) 
{
	if (e.keyCode == 13)
	{
		// enter
		userVal = 0;
	}
	else
	{
		var val = 0;
		if (e.keyCode >= 48 && e.keyCode <= 57)
		{
			// Numbers (not numpad)
			// 0 => 48
			// ...
			// 9 => 57
			val = e.keyCode - 48;
		}
		else if (e.keyCode >= 96 && e.keyCode <= 105)
		{
			// Numbers (numpad)
			// 0 => 96
			// ...
			// 9 => 105
			val = e.keyCode - 96;
		}
		else
			return;
			
		var currentValString = userVal.toString();
		currentValString = currentValString + val.toString();
		userVal = parseInt(currentValString);
		ValidateValue();
	}
}

function ValidateValue() 
{
	var isFirstPart = false;
	var userValString = userVal.toString();
	
	Bricks.forEach(function(brick) {
		if (!brick.solved && userVal == brick.value)
		{
			//alert("solved !");
			brick.solved = true;
			userVal = 0;
			increaseLevel();
			createNewBrick();
		}
		else
		{
			// If the character is equal to the first part of any value
			// Then we don't have to reset useVal
			var brickValString = brick.value.toString().substr(0, userValString.length);
			if (brickValString == userValString)
				isFirstPart = true;
		}
	});
	
	if (!isFirstPart)
	{
		userVal = 0;
	}
}