Argo, the vacuum cleaner

Task 1: Cleanup

(a) Complete the solution below so that all power-ups are collected in World 1.

(b) Click on World 2 (see right) and start the program. An error message appears: Collision with an asteroid! Check line 7. (Kollision mit einem Asteroiden! Prüfe Zeile 7.)
Find the error in the program and correct it.

💡 Tip for part (b)

Activate debug mode. Examine which lines are executed when the Argo is on the last power-up of the first level.

💡 No idea yet?

                3   if onPow():
                4     removePow()
                5     move()
                6   if not onPow():
                7     move()
            

Argo runs into a wall in line 7 because it moves twice: Both if statements are executed (line 3 and line 6).

Use an if-else-construct to change this.

💡 Still no idea?

Change the code as shown in the flowchart: