How to implement cute little rice dumplings in Python

Create two elves and build background elements

Zongzi and love

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. updateThe 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.

Background construction

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

collision module

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! <div class="code" style="position:relative; padding:0px; margin:0px;"><pre class="brush:py;">if pygame.sprite.spritecollide(player,group,True,pygame.sprite.collide_circle_ratio(0.5)) : 语句</pre><div class="contentsignin">Copy after login</div></div>Greedy module

Eat the ❤ when the collision is reached, set

l

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

Use

score

Calculate, reference a ttf font file <div class="code" style="position:relative; padding:0px; margin:0px;"><pre class="brush:py;">score = 0 score_font = pygame.font.Font(&quot;font.ttf&quot;,50) score_text = score_font.render(&quot;Score: % s&quot; % str(score), True, BLACK) screen.blit(score_text, (0, 0))</pre><div class="contentsignin">Copy after login</div></div> 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(&#39;min_love.png&#39;).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(&#39;迟到的端午&#39;)
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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