11 Sep Thursday 19:00 Python Practice 22.09.08.
Make changes of the program we made in the class, so the enemy spaceship could complete the following tasks:
- the new enemies will appear at the random x position from the top of the screen.
- the enemy can bounce back when it reaches left or right edge.(You could change the direction of the enemy by changing the first item in self.speed attribute)
- the enemy will start to go straight down with acceleration when the distance to the top of the window is greater than 300px.(self.speed will get bigger and bigger)