클래스 상속 예시

super().init() 조합으로 서로 다른 클래스를 상속할 수 있다.

아래 코드와같이 Fish의 nemo는 메소드 swim()뿐만 아니라 breathe() 메소드도 사용 할 수있는것을 확인할 수 있다.

또한 메소드안에서도 super()를 통해 메소드를 수정할 수 있다. ex) Animal의 breathe와 Fish의 breathe

class Animal:
    def __init__(self):
        self.num_eyes = 2

    def breathe(self):
        print("들숨, 날숨.")

class Fish(Animal) :
    def __init__(self):
        super().__init__()

    def breathe(self):
        super().breathe()
        print("물속에서")

    def swim(self):
        print("물안에서 움직인다.")

nemo = Fish()
nemo.swim()
nemo.breathe()

# 결과
물안에서 움직인다.
들숨, 날숨.
물속에서

최종본

메인 파일

import turtle
import time
from turtle import Screen
from snake import Snake
from food import Food
from scoreboard import ScoreBoard

screen = Screen()
screen.setup(width=600, height=600)
screen.bgcolor("black")
screen.title("My Snake Game")
screen.tracer(0)
turtle.hideturtle()
turtle.speed(1)

snake = Snake()
food = Food()
scoreboard = ScoreBoard()

screen.listen()
screen.onkey(fun=snake.move_up, key="Up")
screen.onkey(fun=snake.move_down, key="Down")
screen.onkey(fun=snake.move_left, key="Left")
screen.onkey(fun=snake.move_right, key="Right")

game_is_on = True
while game_is_on :
    screen.update()
    time.sleep(0.1)
    scoreboard.update_scoreboard()
    snake.move_snake()

    # 먹이와 충돌
    if snake.head.distance(food) < 15 :
        food.refresh()
        scoreboard.update_scoreboard()
        scoreboard.increase_score()
        snake.extend()

    # 벽과 충돌
    if snake.head.xcor() > 280 or snake.head.xcor() < -280 or snake.head.ycor() > 280 or snake.head.ycor() < -280 :
        game_is_on = False
        scoreboard.game_over()

    # 꼬리와 충돌
    for segment in snake.all_segment[1:] :
        if snake.head.distance(segment) < 10 :
            game_is_on = False
            scoreboard.game_over()

screen.exitonclick()

snake 파일

from turtle import Turtle

STARTING_POINT = [(0, 0), (-20, 0), (-40, 0)]
MOVE_DISTANCE = 20
UP = 90
DOWN = 270
LEFT = 180
RIGHT = 0
class Snake() :
    def __init__(self):
        self.all_segment=[]
        self.create_snake()
        self.head = self.all_segment[0]

    def create_snake(self):
        for segment in STARTING_POINT:
            self.add_segment(position=segment)

    def add_segment(self, position):
        new_segment = Turtle("square")
        new_segment.color("white")
        new_segment.penup()
        new_segment.goto(position)
        self.all_segment.append(new_segment)

    def extend(self):
        self.add_segment(self.all_segment[-1].position())

    def move_snake(self):
        for seg_num in range(len(self.all_segment) - 1, 0, -1):
            new_x = self.all_segment[seg_num - 1].xcor()
            new_y = self.all_segment[seg_num - 1].ycor()
            self.all_segment[seg_num].goto(new_x, new_y)
        self.head.forward(MOVE_DISTANCE)

    def move_up(self):
        if self.head.heading() != DOWN :
            self.head.setheading(UP)

    def move_down(self):
        if self.head.heading() != UP :
          self.head.setheading(DOWN)

    def move_left(self):
        if self.head.heading() != RIGHT :
          self.head.setheading(LEFT)

    def move_right(self):
        if self.head.heading() != LEFT :
         self.head.setheading(RIGHT)

scoreboard 파일

from turtle import Turtle

STARTING_POINT = [(0, 0), (-20, 0), (-40, 0)]
MOVE_DISTANCE = 20
UP = 90
DOWN = 270
LEFT = 180
RIGHT = 0
class Snake() :
    def __init__(self):
        self.all_segment=[]
        self.create_snake()
        self.head = self.all_segment[0]

    def create_snake(self):
        for segment in STARTING_POINT:
            self.add_segment(position=segment)

    def add_segment(self, position):
        new_segment = Turtle("square")
        new_segment.color("white")
        new_segment.penup()
        new_segment.goto(position)
        self.all_segment.append(new_segment)

    def extend(self):
        self.add_segment(self.all_segment[-1].position())

    def move_snake(self):
        for seg_num in range(len(self.all_segment) - 1, 0, -1):
            new_x = self.all_segment[seg_num - 1].xcor()
            new_y = self.all_segment[seg_num - 1].ycor()
            self.all_segment[seg_num].goto(new_x, new_y)
        self.head.forward(MOVE_DISTANCE)

    def move_up(self):
        if self.head.heading() != DOWN :
            self.head.setheading(UP)

    def move_down(self):
        if self.head.heading() != UP :
          self.head.setheading(DOWN)

    def move_left(self):
        if self.head.heading() != RIGHT :
          self.head.setheading(LEFT)

    def move_right(self):
        if self.head.heading() != LEFT :
         self.head.setheading(RIGHT)

food 파일

from turtle import Turtle
import random
class Food(Turtle):
    def __init__(self):
        super().__init__()
        self.shape("circle")
        self.penup()
        self.shapesize(stretch_len=0.5,stretch_wid=0.5)
        self.color("blue")
        self.speed("fastest")
        self.refresh()

    def refresh(self):
        random_x = random.randint(-280, 280)
        random_y = random.randint(-280, 280)
        self.goto(random_x, random_y)