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

Nikki Wong
Nikki Wong
9,066 Points

mm, didn't get the right movement results. Hitting a wall didn't hurt the player??

I'm out of tries... help? I am reducing their hp every time they hit the wall am i not? considering the grid is 9X9 (smallest at 0 and largest at 9)

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
    dx,dy = direction
    if (x==0 and dx<0) or ( x==9 and dx>0) or (y==0 and dy<0) or (y==0 and dy>0):
        hp=hp-5
    else:
        x+=dx
        y+=dy

    return x, y, hp
Nikki Wong
Nikki Wong
9,066 Points

This is the question:

Our game's player only has two attributes, x and y coordinates. Let's practice with a slightly different one, though. This one has x, y, and "hp", which stands for hit points. Our move function takes this three-part tuple player and a direction tuple that's two parts, the x to move and the y (like (-1, 0) would move to the left but not up or down). Finish the function so that if the player is being run into a wall, their hp is reduced by 5. Don't let them go past the wall. Consider the grid to be 0-9 in both directions. Don't worry about keeping their hp above 0 either.

1 Answer

Steven Parker
Steven Parker
229,670 Points

It looks like you didn't specify all the conditions properly. You have two tests for when "y" is zero.

Instead of "(y==0 and dy>0)", perhaps you meant "(y==9 and dy>0)"?

Nikki Wong
Nikki Wong
9,066 Points

I feel like an idiot! hahaha that was the issue! Been staring at it for so long I completely missed it!! Thanks!