课程大作业项目大龙吃小龙的游戏python源码+详细注释.zip

import random import sys import time import math import pygame from pygame.locals import * FPS = 60 # 游戏帧数 WINWIDTH = 1000 # 宽度 WINHEIGHT = 800 # 高度 HALF_WINWIDTH = int(WINWIDTH / 2) # 屏幕半宽度 HALF_WINHEIGHT = int(WINHEIGHT / 2) # 屏幕半高度 GRASSCOLOR = (252, 232, 236) WHITE = (255, 255, 255) RED = (255, 0, 0) CAMERASLACK = 90 # 镜头追踪，就是镜头最大的偏移量 MOVERATE = 9 # 速度 BOUNCERATE = 6 # 弹跳速率 BOUNCEHEIGHT = 30 # 跳跃高度 STARTSIZE = 25 # 初始尺寸 WINSIZE = 300 # 获胜尺寸 INVULNTIME = 2 # 无敌时间 GAMEOVERTIME = 3 # 重生时间 MAXHEALTH = 10 # 生命值 NUMGRASS = 80 # 有多草 NUMdragonS = 30 # 有多少龙 dragonMINSPEED = 3 # 最慢速度 dragonMAXSPEED = 7 # 最快速度 DIRCHANGEFREQ = 2 # 每帧方向变化百分比 LEFT = 'left' RIGHT = 'right' def main(): global FPSCLOCK, DISPLAYSURF, BASICFONT, L_DRAGON_IMG, R_DRAGON_IMG, L_DRAGONSELF_IMG, R_DRAGONSELF_IMG, GRASSIMAGES pygame.init() FPSCLOCK = pygame.time.Clock() DISPLAYSURF = pygame.display.set_mode((WINWIDTH, WINHEIGHT)) pygame.display.set_caption('dragon Eat dragon') BASICFONT = pygame.font.Font('freesansbold.ttf', 32) # 加载图片文件 L_DRAGON_IMG = pygame.image.load('dragon.png') R_DRAGON_IMG = pygame.transform.flip(L_DRAGON_IMG, True, False) L_DRAGONSELF_IMG = pygame.image.load('dragon-self.png') R_DRAGONSELF_IMG = pygame.transform.flip(L_DRAGONSELF_IMG, True, False) GRASSIMAGES = [] # 播放背景音乐 file = r'T-Pain _ Ne-Yo - Turn All the Lights On (Explicit).mp3' pygame.mixer.init() track = pygame.mixer.music.load(file) pygame.mixer.music.set_volume(0.2) pygame.mixer.music.play(-1, 0) for i in range(1, 5): # 生草 GRASSIMAGES.append(pygame.image.load('grass%s.png' % i)) while True: # 重开 runGame() def runGame(): # 设置游戏开始时的各个变量 invulnerableMode = False invulnerableStartTime = 0 gameOverMode = False gameOverStartTime = 0 winMode = False eat_sound = pygame.mixer.Sound("eat.wav") eat_sound.set_volume(1.0) # 设置游戏界面文本 gameOverSurf = BASICFONT.render( 'What a scary BIT evil dragon!', True, WHITE) gameOverRect = gameOverSurf.get_rect() gameOverRect.center = (HALF_WINWIDTH, HALF_WINHEIGHT) winSurf = BASICFONT.render('You are the BIT evil dragon!', True, WHITE) winRect = winSurf.get_rect() winRect.center = (HALF_WINWIDTH, HALF_WINHEIGHT) winSurf2 = BASICFONT.render('(Press R to restart)', True, WHITE) winRect2 = winSurf2.get_rect() winRect2.center = (HALF_WINWIDTH, HALF_WINHEIGHT + 30) # 镜头位置 camerax = 0 cameray = 0 grassObjs = [] # 存放地上的草 dragonObjs = [] # 存放NPC # 存放玩家 playerObj = {'surface': pygame.transform.scale(L_DRAGONSELF_IMG, (STARTSIZE, STARTSIZE)), 'facing': LEFT, 'size': STARTSIZE, 'x': HALF_WINWIDTH, 'y': HALF_WINHEIGHT, 'bounce': 0, 'health': MAXHEALTH} moveLeft = False moveRight = False moveUp = False moveDown = False # 初始状态生草 for i in range(10): grassObjs.append(makeNewGrass(camerax, cameray)) grassObjs[i]['x'] = random.randint(0, WINWIDTH) grassObjs[i]['y'] = random.randint(0, WINHEIGHT) while True: # 游戏开始 # 检查无敌时间是否到期 if invulnerableMode and time.time() - invulnerableStartTime > INVULNTIME: invulnerableMode = False # 移动NPC for sObj in dragonObjs: # 实现NPC的移动和跳跃 sObj['x'] += sObj['movex'] # 横向移动 sObj['y'] += sObj['movey'] # 纵向移动 sObj['bounce'] += 1 # 跳跃 if sObj['bounce'] > sObj['bouncerate']: sObj['bounce'] = 0 # reset bounce amount # 随机改变方向 if random.randint(0, 99) < DIRCHANGEFREQ: sObj['movex'] = getRandomVelocity() # 随机的速度，大于0朝右，小于0朝左 sObj['movey'] = getRandomVelocity() # 随机的速度，大于0朝上，小于0朝下 if sObj['movex'] > 0: # 朝右走 sObj['surface'] = pygame.transform.scale( R_DRAGON_IMG, (sObj['width'], sObj['height'])) # 使用朝右的贴图并缩放 else: # 朝左走，总之不会停 sObj['surface'] = pygame.transform.scale( L_DRAGON_IMG, (sObj['width'], sObj['height'])) # 使用朝左的贴图并缩放 # 界面以外的都去掉 for i in range(len(grassObjs) - 1, -1, -1): if isOutsideActiveArea(camerax, cameray, grassObjs[i]): del grassObjs[i] for i in range(len(dragonObjs) - 1, -1, -1): if isOutsideActiveArea(camerax, cameray, dragonObjs[i]): del dragonObjs[i] # 移走镜头以后继续添加新的NPC和地上的草 while len(grassObjs) < NUMGRASS: grassObjs.append(makeNewGrass(camerax, cameray)) while len(dragonObjs) < NUMdragonS: # 生成新NPC sq = {} if playerObj['size'] < 150: generalSize = random.randint(playerObj['size'] // 4, playerObj['size']) multiplier = random.randint(1, 2) else: generalSize = random.randint(25, 50) multiplier = random.randint(3, 5) sq['width'] = (generalSize + random.randint(0, 10)) * multiplier sq['height'] = (generalSize + random.randint(0, 10)) * multiplier sq['x'], sq['y'] = getRandomOffCameraPos( camerax, cameray, sq['width'], sq['height']) sq['movex'] = getRandomVelocity() sq['movey'] = getRandomVelocity() if sq['movex'] < 0: # 朝左 sq['surface'] = pygame.transform.scale( L_DRAGON_IMG, (sq['width'], sq['height'])) else: # 朝右 sq['surface'] = pygame.transform.scale( R_DRAGON_IMG, (sq['width'], sq['height'])) sq['bounce'] = 0 sq['bouncerate'] = random.randint(10, 18) sq['bounceheight'] = random.randint(10, 50) dragonObjs.append(sq) # 调整镜头位置 playerCenterx = playerObj['x'] + int(playerObj['size'] / 2) # 玩家横向位置 playerCentery = playerObj['y'] + int(playerObj['size'] / 2) # 玩家纵向位置 if (camerax + HALF_WINWIDTH) - playerCenterx > CAMERASLACK: camerax = playerCenterx + CAMERASLACK - HALF_WINWIDTH elif playerCenterx - (camerax + HALF_WINWIDTH) > CAMERASLACK: camerax = playerCenterx - CAMERASLACK - HALF_WINWIDTH if (cameray + HALF_WINHEIGHT) - playerCentery > CAMERASLACK: cameray = playerCentery + CAMERASLACK - HALF_WINHEIGHT elif playerCentery - (cameray + HALF_WINHEIGHT) > CAMERASLACK: cameray = playerCentery - CAMERASLACK - HALF_WINHEIGHT # 绘制背景 DISPLAYSURF.fill(GRASSCOLOR) # 随机生成镜头范围内的草 for gObj in grassObjs: gRect = pygame.Rect((gObj['x'] - camerax, gObj['y'] - cameray, gObj['width'], gObj['height'])) DISPLAYSURF.blit(GRASSIMAGES[gObj['grassImage']], gRect) # 绘制NPC for sObj in dragonObjs: sObj['rect'] = pygame.Rect((sObj['x'] - camerax, sObj['y'] - cameray - getBounceAmount( sObj['bounce'], sObj['bouncerate'], sObj['bounceheight']), sObj['width'],