The Second Game Theory - The Essential Guide to Flash Games - page 23

Figure 1-6. Balloon Saw game screen
In this game, the player controls the spinning blade with the mouse. Balloons fly up from the bottom
of the screen. The player must move the spinning saw blade into the balloons to pop them and
make them disappear from the screen. As the player continues to pop balloons, the level increases,
and the balloons start to move faster. If the player misses five balloons, the game is over. There is
no end game sequence, so restarting means quitting the game and running it again.
Breaking down the Balloon Saw code
We'll now take apart the code one section at a time and explain what is happening in detail. We
have left the unchanged code in these code segments so you can view it in context, but we won't
describe much of this code as it was just covered in the last section.
Imports
First, we must import the necessary classes into our Game class. The flash.geom.Rectangle class
is used to create a bounding box for the mouse; flash.media.Sound is used to play the pop()
sound, and flash.text will be used to create TextField objects for our scoreboard.
package {
import flash.display.MovieClip;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.display.*;
import flash.events.*;
import flash.geom.Rectangle;
import flash.media.Sound;
import flash.text.*;