Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Python Collections (2016, retired 2019) Dungeon Game Hit points

Posted by Michael Johnston
Michael Johnston
3,204 Points

movement.py? Not sure where to go from here?

This seems to return the correct values for player (x,y,hp) but I'm obviously missing something as it is not passing. Cheers

movement.py 
# EXAMPLES:
# move((1, 1, 10), (-1, 0)) => (0, 1, 10)
# move((0, 1, 10), (-1, 0)) => (0, 1, 5)
# move((0, 9, 5), (0, 1)) => (0, 9, 0)

def move(player, direction):
    x, y, hp = player
    a, b = direction
    if x + a > 0 and x + a < 10 and y + b > 0 and y + b < 10:
        x += a
        y += b
    else:
        hp -= 5

    return x, y, hp

1 Answer

Steven Parker
Steven Parker
229,657 Points
Steven Parker
Steven Parker
229,657 Points

Your test seems to be overly restrictive.

The challenge says to "Consider the grid to be 0-9 in both directions.", but you're only allowing movement within the range of 1-9. You're not allowing movement onto the 0 row or column, as in the first example.