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

Hussein Amr
Hussein Amr
2,461 Points
Posted by Hussein Amr
Hussein Amr
2,461 Points

Didn't understand

I think this is quite easy, but i didn't understand that part: "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)."

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

    return x, y, hp

2 Answers

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,457 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,457 Points

The player gives an example of using the three-part tuple to extract the current x, y, and hp from the player tuple.

Similarly, the move is a two-part tuple of the form (x, y). It can be extracted in a similar fashion to get the desired move:

x_move, y_move = direction

Post back if you need more help. Good luck!!

Hussein Amr
Hussein Amr
2,461 Points
Hussein Amr
Hussein Amr
2,461 Points

Apparently I can't get the program to stop if the player is trying to get past the wall I don't know how i should use the max and min Chris Freeman 

def move(player, direction):
    x, y, hp = player
    x_move , y_move = direction 


    if x_move + x > 9 or x_move + x < 0:
        hp -= 5
        max(x) = 9
        min(x)= 0
    else:
        x_move + x

    if y_move + y > 9 or y_move + y < 0:
        hp -= 5
        max(y) = 9
        min(y) = 0
    else:
        y_move + y

    return x, y, hp
Chris Freeman
Chris Freeman
Treehouse Moderator 68,457 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,457 Points

I see what you're trying to do. How about:

    x = min(9, x) # reduces x to 9 if greater 9
    X = max(0, x) # increases x to 0 if less than 0

The other way is:

if x > 9:
    x = 9
elif x < 0:
    x = 0
Hussein Amr
Hussein Amr
2,461 Points
Hussein Amr
Hussein Amr
2,461 Points

Chris Freeman is it possible to use the second method in the same if statement that I have or do I have to create a new one? also the methods don't work tell me what i'm doing wrong

def move(player, direction):
    x, y, hp = player
    x_move , y_move = direction 


    if x_move + x > 9 or x_move + x < 0:
        hp -= 5
        X = min(9 , x)
        x = max(0 , x)
    else:
        x_move + x

    if y_move + y > 9 or y_move + y < 0:
        hp -= 5
        Y = min(9 , y)
        y = max(9 , y)
    else:
        y_move + y

    return x, y, hp
Chris Freeman
Chris Freeman
Treehouse Moderator 68,457 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,457 Points

Very, very close now. Remember to assign the new value back to x and y in the else blocks so the new values can be returned.