[VISIBLE ONLY LOCALLY] Optionally view what the website will look like at another time (in PDT):
Credit: Based on a handout by Eric Roberts
Handouts: Karel Reference
Karel has been hired by the UN to come and help build houses. The day needs saving and Karel is clearly the best robot for the job. Your goal is to have Karel walk along the bottom row and build a house like the following every time Karel finds a beeper:
The below images show what Karel should do for two example worlds. You can assume that no houses will overlap and that all houses will fit inside the world. You can't assume the size of the world or the number of houses!
from karel.stanfordkarel import * """ File: un_karel.py ------------------------ This program makes Karel builds houses, as work for the UN. Karel will build a house on each spot marked by a beeper in the bottom row of the world. """ def main(): while front_is_clear(): move() if beepers_present(): build_house() def build_house(): """ Constructs a single house centered around Karel's current position. Assumes that there is a beeper present at that location. At the end of the function, Karel will be facing east on the bottom- right corner of the house, one square to the east of Karel's original position. """ # Build the left column of the house first pick_beeper() turn_around() move() turn_right() place_three() # Build the middle column of the house second turn_right() move() turn_right() place_three() # Build the right column of the house last turn_left() move() turn_left() place_three() turn_around() move_to_wall() turn_left() def move_to_wall(): """ Move forward until Karel hits a wall. """ while front_is_clear(): move() def place_three(): """ Places three beepers in a row and moves three times! Assumes that there is enough space in front of Karel to move 3 times. After this function executes, Karel will be 3 spaces further in the direction it is facing, immediately after the last square where it put down a beeper. """ for i in range(3): put_beeper() move() def turn_around(): """ Karel turns 180 degrees - e.g. if Karel is facing east, now Karel will face west. If Karel is facing north, Karel will now face south. """ turn_left() turn_left() def turn_right(): """ Karel turns right - e.g. if Karel is facing east, now Karel will face south. If Karel is facing north, Karel will now face east. """ for i in range(3): turn_left() # There is no need to edit code beyond this point if __name__ == "__main__": run_karel_program()