Android How to Program, 3/e

6.10 Target Subclass of GameElement

Class Target (Fig. 6.9)—a subclass of GameElement—represents a target that the player can destroy. Class Target’s hitPenalty is added to the remaining game time if the Cannonball collides with a Target. The getHitReward method (lines 17–19) returns the hitReward—this method is called from CannonView’s testForCollisions method when adding the hitReward to the remaining time (Section 6.13.11). The Target constructor (lines 9–14) passes its arguments and the ID for the target-hit sound (CannonView.TARGET_SOUND_ID) to the super constructor (line 11), then initializes hitReward.

Fig. 6.9 Target subclass of GameElement

Figure 6.9 Full Alternative Text