Home > Article > Backend Development > How to implement cute little rice dumplings in Python
First create a zongzi object, which is an elf, and the class needs to inherit pygame.sprite.Sprite
Class, this is an important part of the collision module. update
The function is to control the direction of the zongzi and prevent the zongzi from running out of the boundary. When the zongzi touches the boundary, it starts the bottom-out function, causing the zongzi to bounce in the other direction of the boundary.
class Player(pygame.sprite.Sprite): """ 粽子对象 """ def __init__(self): pygame.sprite.Sprite.__init__(self) self.image = pygame.image.load('min2.png') self.image = pygame.transform.scale(self.image, (130, 130)) print(self.image) self.rect = self.image.get_rect() self.rect.midbottom = (20, screen_height ) def update(self): screen.blit(self.image, (self.rect.x, self.rect.y)) screen.blit(self.image, self.rect) x_move = 0 y_move = 0 # 获取按键,并进行相应的移动 key = pygame.key.get_pressed() #通过控制数字来设置粽子速度 if key[pygame.K_LEFT]: x_move -= 4 if key[pygame.K_RIGHT]: x_move += 4 if key[pygame.K_UP]: y_move -= 4 if key[pygame.K_DOWN]: y_move += 4 self.rect.x += x_move self.rect.y += y_move # 控制人物的最低位置 if self.rect.bottom > screen_height+330 : self.rect.bottom = screen_height + 330 # 绘制粽子 screen.blit(self.image, self.rect) #防止粽子跑出边界 if self.rect.right > 1400: self.rect.x -= 20 elif self.rect.left <=-10: self.rect.x += 20 elif self.rect.top < 0: self.rect.y += 50 elif self.rect.bottom> 730: self.rect.y -= 60
Add a ❤ and score points when the salty rice dumpling eats ❤. It must also inherit the pygame.sprite.Sprite
class, and use Move_update
to make ❤ appear randomly in the game and move within the game boundaries.
class Heart_game(pygame.sprite.Sprite): def __init__(self): pygame.sprite.Sprite.__init__(self) self.Heart_speed = [2,-3] # 加载小球图片 self.image = pygame.image.load('min_love.png').convert_alpha() # 获取小球图片的区域开状 self.rect = self.image.get_rect() x,y = random.randint(0,1300),random.randint(0,700) self.active = True self.rect.midbottom = (x, y ) def Move_update(self): self.rect = self.rect.move(self.Heart_speed) #绘制爱心图片 screen.blit(self.image, self.rect) if self.rect.right > 1400: x = random.randint(-5, 0) y = random.randint(-5, -2) or random.randint(1, 5) self.Heart_speed = [x, y] elif self.rect.left <=-10: x = random.randint(0, 5) y = random.randint(-5, 5) self.Heart_speed = [x, y] elif self.rect.top < -10: x = random.randint(-3,3) y = random.randint(0,3) self.Heart_speed = [x,y] elif self.rect.bottom> 695: x = random.randint(-3, 3) y = random.randint(-3,0) self.Heart_speed = [x, y]
Note: \color{#FF45b0}{Note:} Note: screen.blit(image, rect)
In order to draw a picture in the game, it must contain two parameters, one is The picture itself, and the other is the position of the picture in the game, which is rect
.
Import pictures directly and display them in the loop
bg = pygame.image.load("vack.jpeg").convert() #下句需在游戏主循环中使用 screen.blit(bg, (0, 0))
After the construction is completed, it will be
I worked hard on the collision part, using the following sentences, especially! ! \color{blue}{Especially! ! } especially! ! I thought there was no collision at first, so I added multiple statements. In fact, it happened, but I didn’t add any statements ->What would happen under this condition, causing this tragedy... Let’s analyze this carefully. Segment condition,
player is a zongzi object, group
is a group containing ❤, pygame.sprite.collide_circle_ratio(0.5)
can control the image collision volume, so the collision Conditions met! <pre class="brush:py;">if pygame.sprite.spritecollide(player,group,True,pygame.sprite.collide_circle_ratio(0.5)) :
语句</pre>
Greedy module
to an empty array, use l.append(aixin)
Add the ❤ instance. When the array l
exists, enter the collision link. After the collision, use the pop
function to delete ❤. Then add judgment. If the array l is empty, add a new ❤ game instance, which is the above ❤ instance
for each in l: each.Move_update() screen.blit(each.image, each.rect) if pygame.sprite.spritecollide(player,group,True,pygame.sprite.collide_circle_ratio(0.5)) : l.pop() score += 1 print(score) # del aixin if not l: l.append(Heart_game()) group.add(l[0])
Counting mechanism
Calculate, reference a ttf
font file <pre class="brush:py;">score = 0
score_font = pygame.font.Font("font.ttf",50)
score_text = score_font.render("Score: % s" % str(score), True, BLACK)
screen.blit(score_text, (0, 0))</pre>
and finally render it as
## complete code
import pygame from pygame.locals import * import pygame import sys import asyncio import time import random class Player(pygame.sprite.Sprite): #粽子对象 def __init__(self): pygame.sprite.Sprite.__init__(self) self.image = pygame.image.load('min2.png') self.image = pygame.transform.scale(self.image, (130, 130)) print(self.image) self.rect = self.image.get_rect() self.rect.midbottom = (20, screen_height ) def update(self): screen.blit(self.image, (self.rect.x, self.rect.y)) screen.blit(self.image, self.rect) x_move = 0 y_move = 0 # 获取按键,并进行相应的移动 key = pygame.key.get_pressed() if key[pygame.K_LEFT]: x_move -= 4 if key[pygame.K_RIGHT]: x_move += 4 if key[pygame.K_UP]: y_move -= 4 if key[pygame.K_DOWN]: y_move += 4 self.rect.x += x_move self.rect.y += y_move # 控制人物的最低位置 # 绘制人物 screen.blit(self.image, self.rect) if self.rect.right > 1400: self.rect.x -= 20 elif self.rect.left <=-10: self.rect.x += 20 elif self.rect.top < 0: self.rect.y += 50 elif self.rect.bottom> 730: self.rect.y -= 60 # def eat(self): class Heart_game(pygame.sprite.Sprite): def __init__(self): pygame.sprite.Sprite.__init__(self) self.Heart_speed = [2,-3] # 加载小球图片 self.image = pygame.image.load('min_love.png').convert_alpha() # 获取小球图片的区域开状 self.rect = self.image.get_rect() x,y = random.randint(0,1300),random.randint(0,700) self.active = True self.rect.midbottom = (x, y ) def Move_update(self): self.rect = self.rect.move(self.Heart_speed) screen.blit(self.image, self.rect) if self.rect.right > 1400: x = random.randint(-5, 0) y = random.randint(-5, -2) or random.randint(1, 5) self.Heart_speed = [x, y] elif self.rect.left <=-10: x = random.randint(0, 5) y = random.randint(-5, 5) self.Heart_speed = [x, y] elif self.rect.top < -10: x = random.randint(-3,3) y = random.randint(0,3) self.Heart_speed = [x,y] elif self.rect.bottom> 695: x = random.randint(-3, 3) y = random.randint(-3,0) self.Heart_speed = [x, y] # 加载基本的窗口和时钟 pygame.init() screen_width = 1400 screen_height = 700 screen = pygame.display.set_mode((screen_width, screen_height)) pygame.display.set_caption('迟到的端午') clock = pygame.time.Clock() # 设置时钟 # 加载背景,粽子,爱心 bg = pygame.image.load("vack.jpeg").convert() player = Player() aixin = Heart_game() group = pygame.sprite.Group(aixin) count = 0 score = 0 score_font = pygame.font.Font("font.ttf",50) BLACK= (0,0,0) l = [] l.append(aixin) # 游戏主循环 game_run = 1 while game_run: clock.tick(60) screen.blit(bg, (0, 0)) # 持续更新 count += 1 for each in l: each.Move_update() screen.blit(each.image, each.rect) if pygame.sprite.spritecollide(player,group,True,pygame.sprite.collide_circle_ratio(0.5)) : l.pop() score += 1 print(score) # del aixin if not l: l.append(Heart_game()) group.add(l[0]) player.update() score_text = score_font.render("Score: % s" % str(score), True, BLACK) screen.blit(score_text, (0, 0)) for event in pygame.event.get(): if event.type == pygame.QUIT: game_run = False # 窗口更新并绘制 pygame.display.update() pygame.quit()
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