September 2007
Beginner to intermediate
432 pages
17h 48m
English
Content preview from Making Things Talk
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
376 MAKING THINGS TALK
if (xPos < 0) {
rightScore++;
resetBall();
}
// if the ball goes off the screen right:
if (xPos > width) {
leftScore++;
resetBall();
}
// stop the ball going off the top or the bottom of the screen:
if ((yPos - ballSize/2 <= 0) || (yPos +ballSize/2 >=height)) {
// reverse the y direction of the ball:
yDirection = -yDirection;
}
// update the ball position:
xPos = xPos + xDirection;
yPos = yPos + yDirection;
// Draw the ball:
rect(xPos, yPos, ballSize, ballSize);
}
void resetBall() {
// put the ball back in the center
xPos = width/2;
yPos = height/2;
}
Chapter 3
Modified Date page
Language: PHP
Prints the date. But no HTML.
<?php
// Get the date, and format it:
$date = date("Y-m-d h:i:s\t");
// Include the date:
echo "< $date >\n";
?>
Parameter reader
Language: PHP
Prints any parameters sent in using an HTTP GET command.
<?php
// print the beginning of an HTML page:
echo "<html><head></head><body>\n";
// print out all the variables:
foreach ($_REQUEST as $key => $value)
{
echo "$key: $value<br>\n";
}
// finish the HTML:
echo "</body></html>\n";
?>
Age checker
Language: PHP
Expects two parameters from the HTTP request:
• name (a text string)
• age (an integer)
Prints a personalized greeting based on the name and age.
<?php
// print the beginning of an HTML page:
echo "<html><head></head><body>\n";
// read all the parameters and assign the
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.