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# I'M SO LOST. PLZ HELP! (hit points)

I'm stuck on the hit points challenge and have looked through all the community questions but I still don't understand what's going on...All the movements and variables are really confusing me and I can't understand how this works. Can someone outline step by step what's going on here? Would be much appreciated...thx.

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
xdir, ydir = direction
if xdir or ydir > 9:
hp -= 5
if xdir or ydir < 0:
hp -= 5
return x, y, hp
```

xdir and ydir will always be either -1, 0, -1 - it's the direction in which the player is moving. So it would never be more than 9 and the if statement would never be executed. What you need to compare is the player's x and y positions and check if they're trying to move out of bounds. E.g when the x is 0, `xdir` cannot be -1 otherwise the character would lose 5HP.
This is the example I am referring to > `move((0, 1, 10), (-1, 0)) => (0, 1, 5)`.

I'm still confused...I think I'm confused on just how many variables are at play...you're saying that xdir is a separate variable from x?

i think im starting to understand it a little...this is what i have now even though its still not right.

```def move(player, direction):
x, y, hp = player
xdir, ydir = direction
if x + xdir <= 0:
hp -= 5
if y + ydir <= 0:
hp -= 5
if x + xdir >= 9:
hp -= 5
if y + ydir >= 9:
hp -= 5
else:
x + xdir
y + ydir

return x, y, hp
```

ok...i figured it out. I just had to add an = sign to the +