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

Posted by David Greenstein
David Greenstein
6,734 Points

Quick Help with Move Function in Hit Points (HINT needed!)

Can someone give me some assistance in figuring out why this wont work. I have updated the position and by unpacking direction into movex and movey it should be accounting for the updating position

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):
    movex, movey = direction
    x, y, hp = player
    if x == 0 & movex == -1:
        hp -= 5
        x = 0
    # if player's x == 4 , they can't move right
    elif x == 9 & movex == 1:
        hp -= 5
        x = 9
    # if player's y == 0 , they can't move up
    elif y == 0 & movey == -1:
        hp -= 5
        y = 0
    # if player's y == 4 , they can't move down
    elif y == 9 & movey == 1:
        hp -= 5
        y = 9
    else:
        x += movex
        y += move y         
    return x, y, hp

3 Answers

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

You're nearly there, I see two issues (on 5 lines):

  • the boolean combination operator is the word "and", not the symbol "&"
  • it looks like you have a stray space in the middle of "movey" on the second-to-last line
Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

I invite the person who down-voted this answer to leave an explanatory comment to help me provide better assistance in the future.

saidakhmedbayev
saidakhmedbayev
2,210 Points
saidakhmedbayev
saidakhmedbayev
2,210 Points

not sure if this block will work if the direction tuple will have negative (-) numbers?

else:
    x += movex
    y += movey

will you get correct result from this?:

x += -1
Julian Nash
Julian Nash
6,811 Points
Julian Nash
Julian Nash
6,811 Points

Try using 'and' instead of '&'