如何用python做一個貪吃蛇小遊戲並給遊戲加上背景音樂(pygame的應用)
阿新 • • 發佈:2018-12-13
匯入模組
import pygame
import sys
import time
import random
from pygame.locals import *
定義顏色變數
redColour = pygame.Color(255, 0, 0)
blackColour = pygame.Color(0, 0, 0)
whiteColour = pygame.Color(255, 255, 255)
greyColour = pygame.Color(150, 150, 150)
LightGrey = pygame.Color(220, 220, 220)
定義gameOver函式,遊戲結束時的介面
def gameOver(playSurface, score): # 顯示GAME OVER並定義字型以及大小 gameOverFont = pygame.font.Font('arial.ttf', 72) gameOverSurf = gameOverFont.render('Game Over', True, greyColour) gameOverRect = gameOverSurf.get_rect() gameOverRect.midtop = (320, 125) playSurface.blit(gameOverSurf, gameOverRect) # 顯示分數並定義字型和大小 scoreFont = pygame.font.Font('arial.ttf', 48) scoreSurf = scoreFont.render('SCORE: ' + str(score), True, greyColour) scoreRect = scoreSurf.get_rect() scoreRect.midtop = (320, 225) playSurface.blit(scoreSurf, scoreRect) pygame.display.flip() # 重新整理顯示介面 # 休眠5秒後自動關閉 time.sleep(5) pygame.quit() sys.exit()
定義main函式
def main(): # 初始化pygame pygame.init() pygame.mixer.init() fpsClock = pygame.time.Clock() # 建立pygame顯示層 playSurface = pygame.display.set_mode((640, 480)) # 定義標題 pygame.display.set_caption('Snake Go!') # 載入資源圖片,game.ico包含在最後的檔案中 image = pygame.image.load('game.ico') # 設定圖示 pygame.display.set_icon(image) # 載入音樂,MP3音樂檔案放在程式碼檔案所在資料夾中 pygame.mixer.music.load("天地孤影任我行.mp3") # 初始化變數 snakePosition = [100, 100] # 蛇頭位置 snakeSegments = [[100, 100], [80, 100], [60, 100]] # 初始長度為3個單位 raspberryPosition = [300, 300] # 樹莓位置 raspberrySpawned = 1 # 樹莓個數 direction = 'right' # 初始方向 changeDirection = direction score = 0 # 初始分數 while True: # 播放音樂天地孤影任我行,本人喜歡 if pygame.mixer.music.get_busy()==False: pygame.mixer.music.play() # 檢測例如按鍵等pygame事件 for event in pygame.event.get(): if event.type == QUIT: pygame.quit() sys.exit() elif event.type == KEYDOWN: # 判斷鍵盤事件 if event.key == K_RIGHT or event.key == ord('d'): changeDirection = 'right' if event.key == K_LEFT or event.key == ord('a'): changeDirection = 'left' if event.key == K_UP or event.key == ord('w'): changeDirection = 'up' if event.key == K_DOWN or event.key == ord('s'): changeDirection = 'down' if event.key == K_ESCAPE: # 按esc退出遊戲 pygame.event.post(pygame.event.Event(QUIT)) # 判斷是否輸入了反方向 if changeDirection == 'right' and not direction == 'left': direction = changeDirection if changeDirection == 'left' and not direction == 'right': direction = changeDirection if changeDirection == 'up' and not direction == 'down': direction = changeDirection if changeDirection == 'down' and not direction == 'up': direction = changeDirection # 根據方向移動蛇頭的座標 if direction == 'right': snakePosition[0] += 20 if direction == 'left': snakePosition[0] -= 20 if direction == 'up': snakePosition[1] -= 20 if direction == 'down': snakePosition[1] += 20 # 將蛇頭的位置加入列表之中 snakeSegments.insert(0, list(snakePosition)) # 判斷是否吃掉了樹莓 if snakePosition[0] == raspberryPosition[0] and snakePosition[1] == raspberryPosition[1]: raspberrySpawned = 0 else: snakeSegments.pop() # 每次將最後一單位蛇身踢出列表 # 如果吃掉樹莓,則重新生成樹莓 if raspberrySpawned == 0: x = random.randrange(1, 32) y = random.randrange(1, 24) raspberryPosition = [int(x * 20), int(y * 20)] raspberrySpawned = 1 score += 1 # 繪製pygame顯示層 playSurface.fill(blackColour) for position in snakeSegments[1:]: # 蛇身為白色 pygame.draw.rect(playSurface, whiteColour, Rect(position[0], position[1], 20, 20)) pygame.draw.rect(playSurface, LightGrey, Rect(snakePosition[0], snakePosition[1], 20, 20)) # 蛇頭為灰色 pygame.draw.rect(playSurface, redColour, Rect(raspberryPosition[0], raspberryPosition[1], 20, 20)) # 樹莓為紅色 # 重新整理pygame顯示層 pygame.display.flip() # 判斷是否死亡 if snakePosition[0] > 620 or snakePosition[0] < 0: # 超出左右邊界 gameOver(playSurface, score) if snakePosition[1] > 460 or snakePosition[1] < 0: # 超出上下邊界 gameOver(playSurface, score) for snakeBody in snakeSegments[1:]: # 蛇碰到自己身體 if snakePosition[0] == snakeBody[0] and snakePosition[1] == snakeBody[1]: gameOver(playSurface, score) # 控制遊戲速度,長度越長速度越快 if len(snakeSegments) < 40: speed = 6 + len(snakeSegments) // 4 else: speed = 16 fpsClock.tick(speed) if __name__ == "__main__": main()