Background picture of infinite loop of Android actual combat aircraft game (2)

Firstly, analyze the elements in the game interface: infinite rolling background picture, operable protagonist, protagonist's bullet, protagonist's blood volume, two monsters (enemy aircraft), a boss and boss's explosion effect

Look at the renderings first

1. Firstly, the background image principle of infinite scrolling is realized: two bitmap objects are defined. When the first bitmap reaches the end, the second bitmap follows from the end of the first bitmap

Then call the method in mysurfaceview

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