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den initially from view. For instance, if a ship is 45px wide, spawn it at x = -45px. Killing
a big UFO will reward players with a nice sum of 30 points because of their rarity.
Figure 7.8. A big UFO that randomly appears. Players may shoot it down for bonus points.
Using the previously discussed design pattern, create a big UFO object by pasting the code
from the following listing into the self-executing function after the Game object declara-
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