Thursday 18:30 Python Practice 22.10.13.

Question:
Continue modify the program we made in the class:

• create Energy class. A new energy crystal object  will be created when the enemy spaceship explode, the energy will bounce in the window with x speed of randint(-3, 3) and y speed of randint(1, 2)
• use spritecollide to let the fighter collect energy crystals, if the energy crystal is collected, the score will increase