python[Little Turtle 007 great branches and loops]

Loading background music
Play background music (set single loop)
Our aircraft was born
Interval = 0
While True:
If the user clicks the Close button
Exit program
Break
Interval + = 1
If interval = 50:
Interval = 0
The birth of a small plane
Small aircraft Move one position
Screen Refresh
If user mouse generates movement:
Our aircraft Center location = User mouse position
Screen Refresh
If we have a physical conflict with a small aircraft
We hang up and play percussion music
Modify our aircraft pattern
Print Game over
Stop background music, preferably fade out.

The above is pseudo-code

python[Little Turtle 007 great branches and loops]