From 9450066e3bbb9bd2d5262c95a814f1a58d7427d2 Mon Sep 17 00:00:00 2001 From: hnu202109010207 Date: Sat, 10 Dec 2022 17:13:21 +0800 Subject: [PATCH] ADD file via upload --- Gluttonous Snake code.txt | 171 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 171 insertions(+) create mode 100644 Gluttonous Snake code.txt diff --git a/Gluttonous Snake code.txt b/Gluttonous Snake code.txt new file mode 100644 index 0000000..582d30b --- /dev/null +++ b/Gluttonous Snake code.txt @@ -0,0 +1,171 @@ +import random +import sys +import time +import pygame +from pygame.locals import * +from collections import deque + +SCREEN_WIDTH = 600 +SCREEN_HEIGHT = 480 +SIZE = 20 + + +def print_text(screen, font, x, y, text, fcolor=(255, 255, 255)): + imgText = font.render(text, True, fcolor) + screen.blit(imgText, (x, y)) + + +def main(): + pygame.init() + screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT)) + pygame.display.set_caption('贪吃蛇') + + light = (100, 100, 100) # 蛇的颜色 + dark = (200, 200, 200) # 食物颜色 + + font1 = pygame.font.SysFont('SimHei', 24) # 得分的字体 + font2 = pygame.font.Font(None, 72) # GAME OVER 的字体 + red = (200, 30, 30) # GAME OVER 的字体颜色 + fwidth, fheight = font2.size('GAME OVER') + line_width = 1 # 网格线宽度 + black = (0, 0, 0) # 网格线颜色 + bgcolor = (40, 40, 60) # 背景色 + + # 方向，起始向右 + pos_x = 1 + pos_y = 0 + # 如果蛇正在向右移动，那么快速点击向下向左，由于程序刷新没那么快，向下事件会被向左覆盖掉，导致蛇后退，直接GAME OVER + # b 变量就是用于防止这种情况的发生 + b = True + # 范围 + scope_x = (0, SCREEN_WIDTH // SIZE - 1) + scope_y = (2, SCREEN_HEIGHT // SIZE - 1) + # 蛇 + snake = deque() + # 食物 + food_x = 0 + food_y = 0 + + # 初始化蛇 + def _init_snake(): + nonlocal snake + snake.clear() + snake.append((2, scope_y[0])) + snake.append((1, scope_y[0])) + snake.append((0, scope_y[0])) + + # 食物 + def _create_food(): + nonlocal food_x, food_y + food_x = random.randint(scope_x[0], scope_x[1]) + food_y = random.randint(scope_y[0], scope_y[1]) + while (food_x, food_y) in snake: + # 为了防止食物出到蛇身上 + food_x = random.randint(scope_x[0], scope_x[1]) + food_y = random.randint(scope_y[0], scope_y[1]) + + _init_snake() + _create_food() + + game_over = True + start = False # 是否开始，当start = True，game_over = True 时，才显示 GAME OVER + score = 0 # 得分 + orispeed = 0.5 # 原始速度 + speed = orispeed + last_move_time = None + pause = False # 暂停 + + while True: + for event in pygame.event.get(): + if event.type == QUIT: + sys.exit() + elif event.type == KEYDOWN: + if event.key == K_RETURN: + if game_over: + start = True + game_over = False + b = True + _init_snake() + _create_food() + pos_x = 1 + pos_y = 0 + # 得分 + score = 0 + last_move_time = time.time() + elif event.key == K_SPACE: + if not game_over: + pause = not pause + elif event.key in (K_w, K_UP): + # 这个判断是为了防止蛇向上移时按了向下键，导致直接 GAME OVER + if b and not pos_y: + pos_x = 0 + pos_y = -1 + b = False + elif event.key in (K_s, K_DOWN): + if b and not pos_y: + pos_x = 0 + pos_y = 1 + b = False + elif event.key in (K_a, K_LEFT): + if b and not pos_x: + pos_x = -1 + pos_y = 0 + b = False + elif event.key in (K_d, K_RIGHT): + if b and not pos_x: + pos_x = 1 + pos_y = 0 + b = False + + # 填充背景色 + screen.fill(bgcolor) + # 画网格线 竖线 + for x in range(SIZE, SCREEN_WIDTH, SIZE): + pygame.draw.line(screen, black, (x, scope_y[0] * SIZE), (x, SCREEN_HEIGHT), line_width) + # 画网格线 横线 + for y in range(scope_y[0] * SIZE, SCREEN_HEIGHT, SIZE): + pygame.draw.line(screen, black, (0, y), (SCREEN_WIDTH, y), line_width) + + if game_over: + if start: + print_text(screen, font2, (SCREEN_WIDTH - fwidth) // 2, (SCREEN_HEIGHT - fheight) // 2, 'GAME OVER', + red) + else: + curTime = time.time() + if curTime - last_move_time > speed: + if not pause: + b = True + last_move_time = curTime + next_s = (snake[0][0] + pos_x, snake[0][1] + pos_y) + if next_s[0] == food_x and next_s[1] == food_y: + # 吃到了食物 + _create_food() + snake.appendleft(next_s) + score += 10 + speed = orispeed - 0.03 * (score // 100) + else: + if scope_x[0] <= next_s[0] <= scope_x[1] and scope_y[0] <= next_s[1] <= scope_y[1] \ + and next_s not in snake: + snake.appendleft(next_s) + snake.pop() + else: + game_over = True + + # 画食物 + if not game_over: + # 避免 GAME OVER 的时候把 GAME OVER 的字给遮住了 + pygame.draw.rect(screen, light, (food_x * SIZE, food_y * SIZE, SIZE, SIZE), 0) + + # 画蛇 + for s in snake: + pygame.draw.rect(screen, dark, (s[0] * SIZE + line_width, s[1] * SIZE + line_width, + SIZE - line_width * 2, SIZE - line_width * 2), 0) + + print_text(screen, font1, 30, 7, f'速度: {score // 100}') + print_text(screen, font1, 450, 7, f'得分: {score}') + + pygame.display.update() + + +if __name__ == '__main__': + main() \ No newline at end of file