劉任昌python類別class函數def

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bro code snake game程式碼

from tkinter import *

import random

GAME_WIDTH,GAME_HEIGHT = 1000, 800

SPEED = 200    #時間單位千分之一

SPACE_SIZE, BODY_PARTS= 50, 3 #左邊變數 assigning value一次改全部 ctrl shift L

COLOR = ["red","orange","yellow","green","blue","indigo", "purple","pink"]#0123456

FOOD_COLOR = "white"

BACKGROUND_COLOR = "black"

class Snake: #類別Snake

    def __init__(self):

        self.body_size = BODY_PARTS

        self.coordinates = []

        self.squares = []

        for i in range(0, BODY_PARTS):

            self.coordinates.append([0, 0])

        for x, y in self.coordinates:

            i = random.randint(0,6) #產生整數亂數0到6

            square = canvas.create_rectangle(x, y, x + SPACE_SIZE, y + SPACE_SIZE, fill=COLOR[i], tag="snake", width=20,outline='blue')

            self.squares.append(square)

class Food: #類別Food

    def __init__(self):

        x = random.randint(0, (GAME_WIDTH / SPACE_SIZE)-1) * SPACE_SIZE

        y = random.randint(0, (GAME_HEIGHT / SPACE_SIZE) - 1) * SPACE_SIZE

        self.coordinates = [x, y]

        i = random.randint(0,7)

        canvas.create_oval(x,y, x+SPACE_SIZE, y+SPACE_SIZE, fill=FOOD_COLOR, tag="food")

def next_turn(snake, food): #函數def nex_turn

    x, y = snake.coordinates[0]

    if direction == "up":

        y -= SPACE_SIZE

    elif direction == "down":

        y += SPACE_SIZE

    elif direction == "left":

        x -= SPACE_SIZE

    elif direction == "right":

        x += SPACE_SIZE

    snake.coordinates.insert(0, (x, y))

    i = random.randint(0,6)

    square = canvas.create_rectangle(x, y, x + SPACE_SIZE, y + SPACE_SIZE, fill=COLOR[i])

    snake.squares.insert(0, square)

    if x == food.coordinates[0] and y == food.coordinates[1]:

        global score  #globe地球儀,全域變數

        score += 1

        label.config(text="林欣卓分數:{}".format(score))

        canvas.delete("food")

        food = Food()

    else:

        del snake.coordinates[-1]

        canvas.delete(snake.squares[-1])

        del snake.squares[-1]

    if check_collisions(snake):

        game_over()

    else:

        window.after(SPEED, next_turn, snake, food)

def change_direction(new_direction):

    global direction

    if new_direction == 'left':

        if direction != 'right':

            direction = new_direction

    elif new_direction == 'right':

        if direction != 'left':

            direction = new_direction

    elif new_direction == 'up':

        if direction != 'down':

            direction = new_direction

    elif new_direction == 'down':

        if direction != 'up':

            direction = new_direction

def check_collisions(snake): #函數3 collisions 碰撞

    x, y = snake.coordinates[0]

    if x < 0 or x >= GAME_WIDTH:

        return True

    elif y < 0 or y >= GAME_HEIGHT:

        return True

    for body_part in snake.coordinates[1:]:

        if x == body_part[0] and y == body_part[1]:

            return True

    return False

def game_over(): #函數4

    canvas.delete(ALL)

    canvas.create_text(canvas.winfo_width()/2, canvas.winfo_height()/2,

                       font=('consolas',200), text="你完蛋了", fill="white", tag="gameover")

window = Tk()

window.title("林欣卓Snake game貪吃")

window.resizable(False, False)

score = 0

direction = 'down'

label = Label(window, text="林欣卓分數:{}".format(score), font=('consolas', 40))

label.pack()

canvas = Canvas(window, bg=BACKGROUND_COLOR, height=GAME_HEIGHT, width=GAME_WIDTH)

canvas.pack()

window.update()

window_width = window.winfo_width()

window_height = window.winfo_height()

screen_width = window.winfo_screenwidth()

screen_height = window.winfo_screenheight()

x = int((screen_width/2) - (window_width/2))

y = int((screen_height/2) - (window_height/2))

window.geometry(f"{window_width}x{window_height}+{x}+{y}")

window.bind('<Left>', lambda event: change_direction('left'))

window.bind('<Right>', lambda event: change_direction('right'))

window.bind('<Up>', lambda event: change_direction('up'))

window.bind('<Down>', lambda event: change_direction('down'))

snake = Snake()

food = Food()

next_turn(snake, food)

window.mainloop()