Conventions

In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "We will first add all the classes, and then update LevelManager in the usual three places."

A block of code is set as follows:

if (lm.isPlaying()) {
  // Reset the players location as 
  // the world centre of the viewport
  //if game is playing
  vp.setWorldCentre(lm.gameObjects.get(lm.playerIndex)
    .getWorldLocation().x,
    lm.gameObjects.get(lm.playerIndex)
    .getWorldLocation().y);

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

    //Has player fallen out of the map?
    if (lm.player.getWorldLocation().x < 0 ||
      lm.player.getWorldLocation().x > lm.mapWidth ||
      lm.player.getWorldLocation().y > lm.mapHeight) {

New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "In the Create New Project window shown next, we need to enter some basic information about our app."

Note

Warnings or important notes appear in a box like this.

Tip

Tips and tricks appear like this.