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scimonster · 2011-07-19 04:18:29

I want to make a game in JS, where you pick a number between two boundaries. You tell them to the computer, and it tries to guess them.
Choosing the number (or maybe printing it) isn't working.
Here's the code I'm using:

Code:

<html>
<head>
<title>Guess the number</title>
</head>
<body>
<script type="text/javascript">
function createBorders()
    {
    var highnumber=prompt("Choose the maximum number that can be chosen",10);
    var lownumber=prompt("Choose the minimum number that can be chosen",0);
    var number; //This is the number that the computer chooses.
    document.getElementById("intro").innerHTML=""; //Removes the intro
    document.getElementById("buttons").innerHTML="<button type=\"button\" onclick=\"tooHigh()\">Lower</button>&nbsp;&nbsp;&nbsp;<button type=\"button\" onclick=\"tooLow()\">Higher</button>"; //Creates the buttons to choose if your number is higher or lower than what JS chose
    chooseNumber(); //This is what doesn't work
    }
</script>
<script type="text/javascript">
function chooseNumber()
    {
    do
        {
        number=Math.round(Math.random()*highnumber); //Choose a random number from 0-1, multiply it by the highest possible number, and round
        }
    while (number<=lownumber); //Do that once, and then until the chosen number isn't less than the lowest possible number
    document.getElementById("num").innerHTML=number; //Maybe this doesn't work.  It should write the number into the "num" paragraph
    }
</script>
<script type="text/javascript">
function tooHigh()
    {
    highnumber = number
    }
</script>
<script type="text/javascript">
function tooHigh()
    {
    highnumber = number
    }
</script>
<p id="intro">
In this game, you pick a number between two boundaries.  Click the "Set Boundaries" button when you are ready.
<!-- Should be overwritten by the JS after the number is chosen -->
</p>
<p id="num"><!-- The number --></p>
<p id="buttons">
<!-- First have the set boundaries button, than replace it with the higher/lower buttons. This works. -->
<button type="button" onclick="createBorders()">Set Boundaries</button>
</p>
</body>
</html>

I'm pretty new to JS, just started learning a couple days ago.

meew0 · 2011-07-19 07:11:40

You could just use:

Code:

function chooseNumber()
    {
        number=Math.round((Math.random()*(highnumber-lownumber))+lownumber); //Choose a random number from 0-1, multiply it by the highest possible number, and round
    document.getElementById("num").innerHTML=number; //Maybe this doesn't work.  It should write the number into the "num" paragraph
    }

I don't know if that fixes it though...

scimonster · 2011-07-19 07:17:38

Nope, it still doesn't display the number. :S

ssss · 2011-07-19 07:30:12

Maybe set a variable, then echo the variable contents?

scimonster · 2011-07-19 07:42:22

Hm? It's supposed to set the variable to a random number, then write it.

scimonster · 2011-07-20 06:22:28

Bump.

ssss · 2011-07-20 06:37:30

scimonster wrote:
Hm? It's supposed to set the variable to a random number, then write it.

Yeah, but i can't find where it prints it to the screen hmm

scimonster · 2011-07-20 07:00:08

ssss wrote:
scimonster wrote:
Hm? It's supposed to set the variable to a random number, then write it.
Yeah, but i can't find where it prints it to the screen

Code:

function chooseNumber()
    {
    do
        {
        number=Math.round(Math.random()*highnumber); //Choose a random number from 0-1, multiply it by the highest possible number, and round
        }
    while (number<=lownumber); //Do that once, and then until the chosen number isn't less than the lowest possible number
    document.getElementById("num").innerHTML=number; //Maybe this doesn't work.  It should write the number into the "num" paragraph
    }

Code:

document.getElementById("num").innerHTML=number; //Maybe this doesn't work.  It should write the number into the "num" paragraph

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archived forums

#1 2011-07-19 04:18:29

My JS isn't working... help, please?

Code:

#2 2011-07-19 07:11:40

Re: My JS isn't working... help, please?

Code:

#3 2011-07-19 07:17:38

Re: My JS isn't working... help, please?

#4 2011-07-19 07:30:12

Re: My JS isn't working... help, please?

#5 2011-07-19 07:42:22

Re: My JS isn't working... help, please?

#6 2011-07-20 06:22:28

Re: My JS isn't working... help, please?

#7 2011-07-20 06:37:30

Re: My JS isn't working... help, please?

scimonster wrote:

#8 2011-07-20 07:00:08

Re: My JS isn't working... help, please?

ssss wrote:

scimonster wrote:

Code:

Code:

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