Step6: add python and snake.
Now we have a programming environment and we have a small game for amusement :). Signed-off-by: Chen Wang <wangchen20@iscas.ac.cn>
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Chen Wang
164
package/snake/snake.py
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164
package/snake/snake.py
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# https://gist.github.com/darkSasori/b8f7acbc54e45fe3ac3b5a26e1715a90
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"""
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这个代码实现了一个经典的贪吃蛇游戏。
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使用 curses 库在终端中创建图形界面。
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游戏支持方向键控制蛇的移动，空格键暂停，ESC 键退出。
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蛇可以穿过边界，吃到食物会变长并得分，撞到自己身体游戏结束。
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"""
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import time
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import curses
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from curses import KEY_LEFT, KEY_RIGHT, KEY_UP, KEY_DOWN
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from random import randint
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WIDTH = 60
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HEIGHT = 20
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def walk_left(snake):
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snake.insert(0, [snake[0][0], snake[0][1]-1])
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if snake[0][1] <= 1: snake[0][1] = WIDTH - 1
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return snake
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def walk_right(snake):
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snake.insert(0, [snake[0][0], snake[0][1]+1])
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if snake[0][1] >= WIDTH - 1: snake[0][1] = 1
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return snake
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def walk_up(snake):
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snake.insert(0, [snake[0][0] -1, snake[0][1]])
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if snake[0][0] <= 0: snake[0][0] = 18
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return snake
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def walk_down(snake):
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snake.insert(0, [snake[0][0] +1, snake[0][1]])
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if snake[0][0] >= HEIGHT - 1: snake[0][0] = 1
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return snake
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def generate_food(snake):
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food = []
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while food == []:
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food = [randint(1, HEIGHT - 2), randint(1, WIDTH - 2)]
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if food in snake[1:]: food = []
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return food
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def draw_snake(screen, snake, remove_last = True):
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# 绘制蛇头为'O'
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screen.addstr(snake[0][0], snake[0][1], 'O')
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# 绘制蛇身为'#'
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for segment in snake[1:]:
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screen.addstr(segment[0], segment[1], '#')
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if remove_last == False: return snake
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last = snake.pop()
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screen.addstr(last[0], last[1], ' ')
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return snake
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def main(screen):
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#curses.curs_set(0)
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try:
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curses.curs_set(0) # Try to make cursor invisible
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except curses.error:
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# Terminal doesn't support cursor visibility changes
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# The cursor will remain visible, but your program can continue
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pass
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screen.clear()
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screen.nodelay(1)
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screen.keypad(1)
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screen.timeout(150)
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screen.border(0)
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direction_functions = {
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KEY_LEFT: walk_left,
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KEY_RIGHT: walk_right,
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KEY_UP: walk_up,
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KEY_DOWN: walk_down
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}
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score = 0
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snake = [[4,4],[4,3],[4,2]]
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food = generate_food(snake)
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direction = KEY_RIGHT
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paused = False
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while True:
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screen.border(0)
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event = screen.getch()
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if event == 27:
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break
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if event == 32:
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paused = False if paused else True
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if paused:
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screen.addstr(0, 1, 'Paused')
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continue
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if event in [KEY_LEFT, KEY_RIGHT, KEY_UP, KEY_DOWN]:
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direction = event
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snake = direction_functions[direction](snake)
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if snake[0] in snake[1:]:
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break
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screen.addstr(0, 1, 'Score: {}'.format(score))
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snake = draw_snake(screen, snake, snake[0] != food)
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if snake[0] == food:
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food = generate_food(snake)
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score = score + 1
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screen.addstr(food[0], food[1], '*')
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return score
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def show_intro():
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"""在控制台中显示游戏介绍和开始提示"""
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print("\n" + "="*60)
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print(" " * 20 + "SNAKE GAME")
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print("="*60)
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print("\nWelcome to the classic Snake game!")
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print("\nControl the snake using arrow keys:")
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print(" - UP, DOWN, LEFT, RIGHT")
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print("\nRules:")
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print(" - Guide the snake to eat the food (*)")
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print(" - Each food increases your score by 1")
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print(" - The snake grows longer when it eats")
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print(" - Game ends if the snake hits itself")
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print(" - Snake can pass through walls")
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print("\nControls:")
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print(" - SPACE: Pause/Resume game")
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print(" - ESC: Quit game")
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# 等待用户输入
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while True:
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print("\nDo you want to start the game? [Y/n]: ", end="")
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try:
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key = input().strip().lower()
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if key == "" or key == "y": # 回车或输入 y 都确认开始
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return True
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elif key == "n":
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return False
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else:
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print("Please enter 'y' for yes or 'n' for no.")
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except (EOFError, KeyboardInterrupt):
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return False
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if __name__ == '__main__':
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if not show_intro():
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print("Game cancelled.")
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exit(0)
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curses.initscr()
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win = curses.newwin(HEIGHT, WIDTH, 0, 0)
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score = main(win)
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curses.endwin()
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print("\n" + "="*60)
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print('GAME OVER!')
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print('Congratulations, your score is: {}'.format(score))
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print("="*60)
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