topical media & game development
#javascript-processing-example-basic-structure-redraw.htm / htm
<!DOCTYPE html>
<html><head>
<script src="javascript-processing-example-processing.js"></script>
<script src="javascript-processing-example-init.js"></script>
<link rel="stylesheet" href="javascript-processing-example-style.css">
</head><body><h1><a href="http://ejohn.org/blog/processingjs/">Processing.js</a></h1>
<h2>Redraw</h2>
<p>The redraw() function makes draw() execute once.
In this example, draw() is executed once every time
the mouse is clicked.</p>
<p><a href="http://processing.org/learning/basics/redraw.html"><b>Original Processing.org Example:</b> Redraw</a><br>
<script type="application/processing">
// The statements in the setup() function
// execute once when the program begins
void setup()
{
size(200, 200); // Size should be the first statement
stroke(255); // Set line drawing color to white
noLoop();
}
float y = 100;
// The statements in draw() are executed until the
// program is stopped. Each statement is executed in
// sequence and after the last line is read, the first
// line is executed again.
void draw()
{
background(0); // Set the background to black
y = y - 1;
if (y < 0) { y = height; }
line(0, y, width, y);
}
void mousePressed()
{
redraw();
}
</script><canvas width="200" height="200"></canvas></p>
<div style="overflow: hidden; height: 0px; width: 0px;"></div>
<pre><b>// All Examples Written by <a href="http://reas.com/">Casey Reas</a> and <a href="http://benfry.com/">Ben Fry</a>
// unless otherwise stated.</b>
// The statements in the setup() function
// execute once when the program begins
void setup()
{
size(200, 200); // Size should be the first statement
stroke(255); // Set line drawing color to white
noLoop();
}
float y = 100;
// The statements in draw() are executed until the
// program is stopped. Each statement is executed in
// sequence and after the last line is read, the first
// line is executed again.
void draw()
{
background(0); // Set the background to black
y = y - 1;
if (y < 0) { y = height; }
line(0, y, width, y);
}
void mousePressed()
{
redraw();
}</pre>
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(C) Æliens
20/2/2008
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