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Akinola Ogooluwa
1,255 Pointsi do not understand the movement.py question. please help
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.
# 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
1 Answer
Chris Freeman
Treehouse Moderator 68,423 PointsThe task is 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.
Part 1: getting the new position. The code shows how to break out the players x-position, y-position, and hit points. The direction to move can be broken out from the direction is a similar way to get the x-move and y-move changes. To get the new player position, add the x-position and x-move, and also add the y-position and y-move.
Part 2: handling walls: A wall is "hit" if the players new position would move them passed the edge of the grid: a coordinate that is less than zero or greater than the largest grid value. In this case, reset the position back to the edge of the grid (0 or max_value), and deduct 5 from the current hp value.
Part 3: return the corrected player position and hp value (as shown in the provided code snippet.
Post back if you have any other questions. Good luck!!