[JAVA][Beginning Java 8 Games Development]

Chapter 17 ■ Enhancing Game Play: Creating a Scoring Engine, Adding Treasure and an Enemy Auto-Attack Engine
Figure 17-56. Add an attackFrequency statement incorporating a .nextInt(bounds) method in if (onScreen && launchIt)
As you can see when you use the Run ➤ Project work process, you no longer can calculate when any given
Enemy attack will commence! Let’s make the auto-attack engine more intelligent, by telling it where the InvinciBagel
character is located (Y coordinate) on the screen, so that the auto-attack engine can more effectively target him!
Targeting the InvinciBagel: Adding Enemy Artificial Intelligence
The next thing that we should do to make game play more challenging is tell the auto-attack engine where the iBagel
is located on the screen, an artificial intelligence gathering mission, made easier because we control all of the Java
code! To do this, instead of using the randomLocation random Y screen height location value, we will create a variable
that will hold the InvinciBagel Y screen height location value, giving the Enemy inside information regarding where
the iBagel object is on the screen. This is done using the iY attribute of the iBagel Hero object, which we access using
the .getiY() getter method, and then use in the .setTranslateY() method call. We are using integer (rather than double)
as the iBagelLocation data type, so we’ll need to “cast” the double data value we get from the .getiY() method, so that it
is compatible with the iBagelLocation variable. The Java code, shown in Figure 17-57, should look like the following:
int iBagelLocation;
iBagelLocation = (int) invinciBagel.iBagel.getiY();
spriteFrame.setTranslateY(iBagelLocation);
randomOffset = iBagelLocation + 5;
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