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C # tutorial
The HTML <canvas> element is displayed as a rectangular object on a web page
The <canvas>
element is perfect for making games in HTML.
The <canvas>
element offers all the functionality you need for making games.
Use JavaScript to draw, write, insert images, and more, onto the
<canvas>
.
The <canvas>
element has a built-in object, called the getContext("2d")
object, with methods and properties for drawing.
You can learn more about the <canvas>
element, and the
getContext("2d")
object, in our Canvas
Tutorial.
To make a game, start by creating a gaming area, and make it ready for drawing:
function startGame() {
myGameArea.start();
}
var myGameArea = {
canvas : document.createElement("canvas"),
start : function() {
this.canvas.width = 480;
this.canvas.height = 270;
this.context = this.canvas.getContext("2d");
document.body.insertBefore(this.canvas, document.body.childNodes[0]);
}
}
The object myGameArea
will have
more properties and methods later in this tutorial.
The function startGame()
invokes the method
start()
of the
myGameArea
object.
The
start()
method creates a <canvas>
element and inserts
it as the first childnode of the <body>
element.