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

wayne ross
wayne ross
3,225 Points
Posted by wayne ross
wayne ross
3,225 Points

move challenge question for task 1

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.

Any ideas on what I am doing wrong here?

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 wall_perimeter(player):


def move(player, direction):
    x, y, hp = player
    if ((direction[0]+x)>=0 or (direction[1]+y)>=0 or (direction[0]+x)<=9 or (direction[1]+y)<=9) is True:
        move_x,move_y=direction
        x=x+move_x
        y=y+move_y
    else:
        print('You hit a wall')
        hp=hp-5
    return x, y, hp

1 Answer

wayne ross
wayne ross
3,225 Points
wayne ross
wayne ross
3,225 Points 
def move(player, direction):
    x, y, hp = player
    if ((direction[0]+x)>=0 and (direction[1]+y)>=0 and (direction[0]+x)<=9 and (direction[1]+y)<=9) is True:
        move_x,move_y=direction
        x=x+move_x
        y=y+move_y
    else:
        print('You hit a wall')
        hp=hp-5
    return x, y, hp
rmsmxxlwyt
.a{fill-rule:evenodd;}techdegree
rmsmxxlwyt
Python Web Development Techdegree Student 7,597 Points

That worked, and another way of writing it:

#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 a + x >= 0 and b + y >= 0 and a + x <= 9 and b + y <= 9:
        x += a
        y += b
    else:
        hp -= 5

    return x, y, hp