A Problem In Creating A Game... Need Help. A mistake in coding...

Question

1.00/5 (1 vote)

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My HTML file :

HTML

<html>
<head>
<title> Game </title>
<link rel= "stylesheet" type = "text/css" href = "style.css" />
 </head>
<body>
<canvas id ="maincanvas" width = "500" height = "400"> </canvas>
<canvas id ="maincanvas2" width = "500" height = "400"> </canvas>
<script src ="script.js"> </script>
</body>

</html>

My Script (javascript) :

JavaScript

var canvas = document.getElementById("maincanvas");
var context = canvas.getContext("2d");

var keys = [];

var width = 500, speed = 3, height = 400;

var player = {
          x: 10,
          y: 10, 
    width: 20,
   height: 20
};
window.addEventListener("Keydown",  function(e){
         keys[e.keyCode] = true;
}, false);

window.addEventListener("Keyup",  function(e){
         delete keys[e.keyCode];
}, false);

/*
up - 38
down - 40
left - 37
right - 39
*/

function game(){
   update();
   render();
}

function update(){
       if(keys[38]) player.y--;
       if(keys[40]) player.y++;
       if(keys[37]) player.x--;
       if(keys[39]) player.x++;
} 
function render(){
         context.clearRect(0, 0, 100, 100);
}

setInterval(function(){
           game();
}, 1000/30)

My CCS file :

CSS

#maincanvas {
     background-color: red;
}

The Problem is that, when I run this it doesn't shows why I am trying to do. I mean their is a minor, a bit problem in the code of the script, I think. I'm tired to look for it.
So please, will anyone correct it and then send me back the solution ?

Thanks.

Posted 5-Feb-15 3:02am

Mudit Jhawar

Updated 5-Feb-15 3:11am

CHill60

v4

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Comments

Richard MacCutchan 5-Feb-15 10:21am

As far as I can see your 'game' does not actually do anything.

Mudit Jhawar 6-Feb-15 7:55am

Can I run it?
Have I done any mistake?
Do you have any suggestions? :)

Richard MacCutchan 6-Feb-15 8:49am

I don't really know what you are trying to achieve with this, as your question is not very clear. However, given the fact that the code does not really do anything, I would suggest working through a few more Javascript tutorials.

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