球球大作战（Python）

import pygame,random,sys,time,math
from pygame.locals import *#定义窗口变量
WORLDWIDTH =2500 #世界宽度
WORLDHEIGHT =2500  #世界高度
HALFWWIDTH = int(WORLDWIDTH//2)
HALFWHEIGHT = int(WORLDHEIGHT//2)
WIDTH = 500  #窗口宽度
HEIGHT =500  #窗口高度
CENTERWIDTH = int(WIDTH//2)
CENTERHEIGHT = int(HEIGHT//2)
FPS = 30  #帧率
SPLITBASE = 0.5 #分裂基数
pi = math.pi
INITIALWEIGHT = 300  #初始重量#定义颜色变量
LIGHTBLACK = (10,51,71)
LIGHTBLUE = (51,102,205)
WHITE = (255,255,255)
BLACK = (0,0,0)
RED = (255,0,0)#定义方向变量
UP = 'up'
DOWN = 'down'
LEFT = 'left'
RIGHT = 'right'#定义球球类
class Ball():def __init__(self,xpos,ypos,weight,color): #定义球的x，y，重量，颜色self.xpos = xposself.ypos = yposself.radius = weightToRadius(weight)self.weight = weightself.speed = weightToSpeed(weight)self.color = colordef move(self,direction):  #小球移动rec = pygame.Rect(-HALFWWIDTH, -HALFWHEIGHT, WORLDWIDTH, WORLDHEIGHT)if direction == UP:if rec.top < self.ypos - self.radius: #限制在上边界以下self.ypos -= int(self.speed//20)elif direction == DOWN:if rec.bottom > self.ypos +self.radius:self.ypos += int(self.speed//20)elif direction == RIGHT:if rec.right > self.xpos + self.radius:self.xpos += int(self.speed//20)elif direction == LEFT:if rec.left < self.xpos - self.radius:self.xpos -= int(self.speed//20)def split(self,direction): #分裂小球函数newweight = math.floor((self.weight // 2) * SPLITBASE)newball = Ball(self.xpos, self.ypos, newweight, self.color)if direction == UP:#分裂流畅动画for i in range(10):newball.ypos -= round(0.2*self.radius)drawBall(newball)pygame.display.update()elif direction == DOWN:for i in range(10):newball.ypos += round(0.2*self.radius)drawBall(newball)pygame.display.update()elif direction == LEFT:for i in range(10):newball.xpos -= round(0.2*self.radius)drawBall(newball)pygame.display.update()elif direction == RIGHT:for i in range(10):newball.xpos += round(0.2*self.radius)drawBall(newball)pygame.display.update()self.setWeight(newweight) #分裂完后设置球的重量selfBalls.append(newball)def setWeight(self,newweight):self.weight = newweightself.speed = weightToSpeed(newweight)self.radius = weightToRadius(newweight)def eatFood(self): #吃食物global foodlistselfworldx = self.xposselfworldy = self.yposfor food in foodlist:distance = math.sqrt((selfworldx-food.xpos)*(selfworldx-food.xpos)+(selfworldy-food.ypos)*(selfworldy-food.ypos))if distance < self.radius:self.setWeight(self.weight+food.weight)foodlist.remove(food)#食物类
class Food():def __init__(self,xpos,ypos,weight,color,radius):self.xpos = xposself.ypos = yposself.weight = weightself.color = colorself.radius = radius#其他球类
class OtherBall():def __init__(self,xpos,ypos,weight,color):self.xpos = xposself.ypos = yposself.weight = weightself.radius = weightToRadius(weight)self.speed = weightToSpeed(weight)self.color = colorself.direction = random.uniform(0,2*pi) #方向角度def eatFood(self):global foodlistfor food in foodlist:distance = math.sqrt((self.xpos-food.xpos)**2+(self.ypos-food.ypos)**2)if distance < self.radius:self.setWeight(self.weight+food.weight)foodlist.remove(food)def setWeight(self,newweight):self.weight = newweightself.speed = weightToSpeed(newweight)self.radius = weightToRadius(newweight)def move(self):#使小球能在方框内移动rec = pygame.Rect(-HALFWWIDTH,-HALFWHEIGHT,WORLDWIDTH,WORLDHEIGHT)if rec.left>self.xpos:self.direction = pi - self.directionself.xpos += self.speed//10 #之前没有这句，小球在碰撞几次墙壁之后就会跳动着出界if rec.right<self.xpos:self.direction = pi - self.directionself.xpos -= self.speed//10if rec.top >self.ypos:self.direction = 2*pi-self.directionself.ypos += self.speed//10if rec.bottom < self.ypos:self.direction = 2*pi-self.directionself.ypos -= self.speed//10self.xpos += math.floor(math.cos(self.direction)*self.speed//40)self.ypos -= math.floor(math.sin(self.direction)*self.speed//40)def main():global FPSCLOCK,DISPLAYSURF,cameray,camerax,selfBalls,otherBalls,foodlist,rec #设置全局变量pygame.init()FPSCLOCK = pygame.time.Clock()DISPLAYSURF = pygame.display.set_mode((WIDTH,HEIGHT))camerax = -CENTERWIDTHcameray = -CENTERHEIGHTdirction = ''#定义小球列表selfBalls = []otherBalls = []foodlist = []for i in range(100): #创建其他小球xpos = random.randint(-HALFWWIDTH, HALFWWIDTH)ypos = random.randint(-HALFWHEIGHT, HALFWHEIGHT)otherb = OtherBall(xpos,ypos,INITIALWEIGHT*1.1,randomColor())otherBalls.append(otherb)for i in range(1000): #初始化创建100个食物createFood(foodlist)ball = Ball(0, 0, INITIALWEIGHT, randomColor()) #建立第一个小球selfBalls.append(ball)fontObj = pygame.font.Font('C:/Windows/Fonts/msyh.ttc',20)  #字体对象，我用的是系统字体winfont = pygame.font.Font('C:/Windows/Fonts/msyh.ttc',36)allweight = 0while True:for event in pygame.event.get():if event.type == QUIT:time.sleep(3)exit()if event.type == KEYUP: #响应键盘if event.key == K_w:dirction = UPelif event.key == K_s:dirction = DOWNelif event.key == K_d:dirction = RIGHTelif event.key == K_a:dirction = LEFTelif event.key == K_j:  #分裂count = len(selfBalls)if count < 16:for i in range(count):if selfBalls[i].weight > 20:selfBalls[i].split(dirction)DISPLAYSURF.fill(LIGHTBLACK) #背景填充rec = pygame.Rect(-(camerax + HALFWHEIGHT), -(cameray + HALFWHEIGHT), WORLDWIDTH, WORLDHEIGHT) #边界矩形drawBorder(rec)text = '重量为：'+str(allweight)+'   敌人还剩：'+str(len(otherBalls))displayText(text,fontObj,WHITE,200,20)if len(foodlist)<500:  #当食物数量小于500时，增加食物createFood(foodlist)drawFoods(foodlist)if len(otherBalls)>0: #当其他球还有的时候进行吃球的操作balleatBall()if len(otherBalls)==0 or allweight>=1000000:  #胜利条件displayText('恭喜你！最终你胖到了'+str(allweight)+'斤',winfont,RED,CENTERWIDTH,CENTERHEIGHT)pygame.display.update()time.sleep(3)pygame.quit()if len(selfBalls)==0:displayText('你被吃了~继续努力吧~',winfont,RED,CENTERWIDTH,CENTERHEIGHT)pygame.display.update()time.sleep(3)pygame.quit()allweight = 0for b in selfBalls:  #得到所有重量和移动所有球allweight += b.weightb.move(dirction)for b in otherBalls: #移动其他的球b.move()b.eatFood()drawBalls(selfBalls)camerax = selfBalls[0].xpos - CENTERWIDTHcameray = selfBalls[0].ypos - CENTERHEIGHTfor ball in selfBalls:ball.eatFood()drawBalls(otherBalls)if len(selfBalls)>=2:unite()pygame.display.update()FPSCLOCK.tick(FPS)def displayText(text,fontObj,textcolor,xpos,ypos):  #显示字函数textsurf = fontObj.render(text, True, textcolor)textRect = textsurf.get_rect()textRect.center = (xpos, ypos)DISPLAYSURF.blit(textsurf, textRect)def balleatBall(): #我方球吃其他球，本游戏不设置其他球互吃global selfBalls,otherBallsfor ball1 in selfBalls:for ball2 in otherBalls:distance = math.sqrt((ball1.xpos - ball2.xpos) ** 2 + (ball1.ypos - ball2.ypos) ** 2)if distance < (ball1.radius + ball2.radius) / 2:if ball1.radius > ball2.radius + 3:ball1.setWeight(ball1.weight + ball2.weight)otherBalls.remove(ball2)elif ball1.radius+3 < ball2.radius :ball2.setWeight(ball1.weight + ball2.weight)selfBalls.remove(ball1)def unite(): #联合两个小球global selfBallsfor ball1 in selfBalls:for ball2 in selfBalls:if ball1!=ball2:distance = math.sqrt((ball1.xpos-ball2.xpos)**2+(ball1.ypos-ball2.ypos)**2)if distance<(ball1.radius+ball2.radius)/2:ball1.setWeight(ball1.weight+ball2.weight)selfBalls.remove(ball2)def createFood(foodlist):xpos = random.randint(-HALFWWIDTH,HALFWWIDTH)ypos = random.randint(-HALFWHEIGHT,HALFWHEIGHT)weight = 10  #每个食物的重量radius = 3  #每个食物的半径newfood = Food(xpos,ypos,weight,randomColor(),radius)foodlist.append(newfood)def drawFoods(foodlist):global camerax,camerayfor food in foodlist:pygame.draw.circle(DISPLAYSURF, food.color, ((food.xpos - camerax), (food.ypos - cameray)), food.radius)def drawBalls(balls): #画所有球global camerax,camerayfor ball in balls:pos = (ball.xpos-camerax,ball.ypos-cameray)radius = ball.radiuscolor = ball.colorpygame.draw.circle(DISPLAYSURF,color,pos,radius)def weightToSpeed(weight):#重量转换为速度if weight < 8000:return math.floor(-0.02*weight+200)elif weight >=8000:return 40  #最低速度为40def weightToRadius(weight):  #将小球的重量转化为半径if weight < 100:return math.floor(0.1*weight + 10)elif weight>=100:return math.floor(2*math.sqrt(weight))def drawBorder(rec): #画边界borderthick = 5pygame.draw.rect(DISPLAYSURF,WHITE,rec,borderthick)recleft = (rec[0]-CENTERWIDTH,rec[1]-CENTERHEIGHT,CENTERWIDTH,WORLDHEIGHT+HEIGHT)recright = (rec[0]+WORLDWIDTH,rec[1]-CENTERHEIGHT,CENTERWIDTH,WORLDHEIGHT+HEIGHT)rectop = (rec[0],rec[1]-CENTERHEIGHT,WORLDWIDTH,CENTERHEIGHT)recbottom = (rec[0],rec[1]+WORLDHEIGHT,WORLDWIDTH,CENTERHEIGHT)pygame.draw.rect(DISPLAYSURF,BLACK,recleft,0)pygame.draw.rect(DISPLAYSURF, BLACK, rectop, 0)pygame.draw.rect(DISPLAYSURF, BLACK, recright, 0)pygame.draw.rect(DISPLAYSURF, BLACK, recbottom, 0)def drawBall(Obj):pygame.draw.circle(DISPLAYSURF,Obj.color,(Obj.xpos,Obj.ypos),Obj.radius)def randomColor(): #随机获取颜色return (random.randint(1,255),random.randint(1,255),random.randint(1,255))if __name__ =="__main__":main()

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