I wrote a Tetris last time , It feels like everyone understands , Let's update a plant vs. zombie this time
Zombie plant war words
Python Source code , Problem solving learning exchange group :773162165

Introduce required modules
import pygame import random
Configure picture address
IMAGE_PATH = 'imgs/'
Set page width and height
scrrr_width = 800 scrrr_height = 560
Create a state that controls the end of the game
GAMEOVER = False
Image loading error handling
LOG = ' file :{} Methods in :{} error '.format(__file__, __name__)
Create map class
class Map():
Store the names of two pictures with different colors
map_names_list = [IMAGE_PATH + 'map1.png', IMAGE_PATH + 'map2.png']
Initialize map
def __init__(self, x, y, img_index): self.image = pygame.image.load(Map.
map_names_list[img_index]) self.position = (x, y)
Whether it can be planted
self.can_grow = True
Load map
def load_map(self): MainGame.window.blit(self.image, self.position)
Plants
class Plant(pygame.sprite.Sprite): def __init__(self): super(Plant, self).
__init__() self.live = True
Load picture
def load_image(self): if hasattr(self, 'image') and hasattr(self, 'rect'):
MainGame.window.blit(self.image, self.rect) else: print(LOG)
Sunflowers
class Sunflower(Plant): def __init__(self, x, y): super(Sunflower, self).
__init__() self.image = pygame.image.load('imgs/sunflower.png') self.rect = self
.image.get_rect() self.rect.x = x self.rect.y = y self.price = 50 self.hp = 100
# 5 time counter self.time_count = 0
New features : Generate sunlight
def produce_money(self): self.time_count += 1 if self.time_count == 25:
MainGame.money += 5 self.time_count = 0
Sunflowers are added to the window
def display_sunflower(self): MainGame.window.blit(self.image, self.rect)
Pea Sagittarius
class PeaShooter(Plant): def __init__(self, x, y): super(PeaShooter, self).
__init__() # self.image For one surface self.image = pygame.image.load(
'imgs/peashooter.png') self.rect = self.image.get_rect() self.rect.x = x self.
rect.y = y self.price = 50 self.hp = 200 # 6 Emission counter self.shot_count = 0
Increase shooting method
def shot(self): # 6 Record whether you should shoot should_fire = False for zombie in MainGame.
zombie_list: if zombie.rect.y == self.rect.y and zombie.rect.x < 800 and zombie.
rect.x > self.rect.x: should_fire = True # 6 If alive if self.live and should_fire:
self.shot_count += 1 # 6 Counter to 25 Launch once if self.shot_count == 25: # 6
Based on the current position of the pea shooter , Create bullet peabullet = PeaBullet(self) # 6 Store bullets in the bullets list MainGame.
peabullet_list.append(peabullet) self.shot_count = 0
Method of adding pea shooter to window
def display_peashooter(self): MainGame.window.blit(self.image, self.rect)
Pea bullets
class PeaBullet(pygame.sprite.Sprite): def __init__(self, peashooter): self.
live= True self.image = pygame.image.load('imgs/peabullet.png') self.damage = 50
self.speed = 10 self.rect = self.image.get_rect() self.rect.x = peashooter.rect
.x + 60 self.rect.y = peashooter.rect.y + 15 def move_bullet(self): # 7
Within screen range , Move to the right if self.rect.x < scrrr_width: self.rect.x += self.speed else: self
.live = False # 7 newly added , Bullet zombie collision def hit_zombie(self): for zombie in MainGame.
zombie_list: if pygame.sprite.collide_rect(self, zombie): # After hitting a zombie , Modify the status of the bullet , self
.live = False # Zombie blood loss zombie.hp -= self.damage if zombie.hp <= 0: zombie.live =
False self.nextLevel() # 7 Breakthrough method def nextLevel(self): MainGame.score += 20
MainGame.remnant_score -= 20 for i in range(1, 100): if MainGame.score == 100 *
iand MainGame.remnant_score == 0: MainGame.remnant_score = 100 * i MainGame.
shaoguan+= 1 MainGame.produce_zombie += 50 def display_peabullet(self): MainGame
.window.blit(self.image, self.rect)
Zombies
class Zombie(pygame.sprite.Sprite): def __init__(self, x, y): super(Zombie,
self).__init__() self.image = pygame.image.load('imgs/zombie.png') self.rect =
self.image.get_rect() self.rect.x = x self.rect.y = y self.hp = 1000 self.damage
= 2 self.speed = 1 self.live = True self.stop = False # 9 Zombie movement def move_zombie(
self): if self.live and not self.stop: self.rect.x -= self.speed if self.rect.x
< -80: # 8 Call the game end method MainGame().gameOver() # 9 Determine whether zombies collide with plants , If collision , Call the method to attack the plant def
hit_plant(self): for plant in MainGame.plants_list: if pygame.sprite.
collide_rect(self, plant): # 8 Modification of zombie movement status self.stop = True self.eat_plant(plant)
# 9 Zombies attack plants def eat_plant(self, plant): # 9 Plant health reduced plant.hp -= self.damage # 9
State modification after plant death , And the modification of map status if plant.hp <= 0: a = plant.rect.y // 80 - 1 b = plant.rect
.x // 80 map = MainGame.map_list[a][b] map.can_grow = True plant.live = False #
8 Modify the movement status of zombies self.stop = False # 9 Load zombies into the map def display_zombie(self): MainGame.
window.blit(self.image, self.rect)
main program
class MainGame(): # 2 Create relationship , score , Residual score , Amount of money shaoguan = 1 score = 0 remnant_score =
100 money = 200 # 3 Store all map coordinate points map_points_list = [] # 3 Store all map blocks map_list = [] #
4 Store a list of all plants plants_list = [] # 7 Store a list of all pea bullets peabullet_list = [] # 9 Add a list to store all zombies
zombie_list= [] count_zombie = 0 produce_zombie = 100 # 1 Load game window def
init_window(self): # 1 Call initialization of display module pygame.display.init() # 1 create a window MainGame.window
= pygame.display.set_mode([scrrr_width, scrrr_height]) # 2 Text drawing def draw_text(
self, content, size, color): pygame.font.init() font = pygame.font.SysFont(
'kaiti', size) text = font.render(content, True, color) return text # 2 Load help tips
def load_help_text(self): text1 = self.draw_text('1. Press the left button to create a sunflower 2. Right click to create pea shooter ', 26, (
255, 0, 0)) MainGame.window.blit(text1, (5, 5)) # 3 Initialize coordinate points def init_plant_points
(self): for y in range(1, 7): points = [] for x in range(10): point = (x, y)
points.append(point) MainGame.map_points_list.append(points) print(
"MainGame.map_points_list", MainGame.map_points_list) # 3 Initialize map def init_map(
self): for points in MainGame.map_points_list: temp_map_list = list() for point
in points: # map = None if (point[0] + point[1]) % 2 == 0: map = Map(point[0] *
80, point[1] * 80, 0) else: map = Map(point[0] * 80, point[1] * 80, 1) #
Add a map block to the window temp_map_list.append(map) print("temp_map_list", temp_map_list)
MainGame.map_list.append(temp_map_list) print("MainGame.map_list", MainGame.
map_list) # 3 Load map into window def load_map(self): for temp_map_list in MainGame.
map_list: for map in temp_map_list: map.load_map() # 6 Add pea shooter launch processing def
load_plants(self): for plant in MainGame.plants_list: # 6 Optimize the processing logic of loading plants if plant.
live: if isinstance(plant, Sunflower): plant.display_sunflower() plant.
produce_money() elif isinstance(plant, PeaShooter): plant.display_peashooter()
plant.shot() else: MainGame.plants_list.remove(plant) # 7 How to load all bullets def
load_peabullets(self): for b in MainGame.peabullet_list: if b.live: b.
display_peabullet() b.move_bullet() # v1.9 Call the method of whether the bullet hit the zombie b.hit_zombie() else:
MainGame.peabullet_list.remove(b) # 8 event processing def deal_events(self): # 8 Get all events
eventList= pygame.event.get() # 8 Traverse event list , judge for e in eventList: if e.type ==
pygame.QUIT: self.gameOver() elif e.type == pygame.MOUSEBUTTONDOWN: #
print(' Press the mouse button ') print(e.pos) # print(e.button)# Left key 1 Press the roller 2 The up rotation roller is 4 The downward rotation roller is 5 Right click 3 x =
e.pos[0] // 80 y = e.pos[1] // 80 print(x, y) map = MainGame.map_list[y - 1][x]
print(map.position) # 8 Add map filling judgment and money judgment when creating if e.button == 1: if map.can_grow
and MainGame.money >= 50: sunflower = Sunflower(map.position[0], map.position[1]
) MainGame.plants_list.append(sunflower) print(' Current plant list length :{}'.format(len(MainGame
.plants_list))) map.can_grow = False MainGame.money -= 50 elif e.button == 3: if
map.can_grow and MainGame.money >= 50: peashooter = PeaShooter( map.position[0],
map.position[1]) MainGame.plants_list.append(peashooter) print(' Current plant list length :{}'.
format(len(MainGame.plants_list))) map.can_grow = False MainGame.money -= 50 #
9 New method for initializing zombies def init_zombies(self): for i in range(1, 7): dis = random.randint(
1, 5) * 200 zombie = Zombie(800 + dis, i * 80) MainGame.zombie_list.append(
zombie) # 9 Load all zombies into the map def load_zombies(self): for zombie in MainGame.
zombie_list: if zombie.live: zombie.display_zombie() zombie.move_zombie() #
v2.0 Call the method of whether to collide with plants zombie.hit_plant() else: MainGame.zombie_list.remove(zombie)
# 1 The game begins def start_game(self): # 1 Initialization window self.init_window() # 3 Initialize coordinates and maps self.
init_plant_points() self.init_map() # 9 Call the method that initializes the zombie self.init_zombies() # 1
As long as the game is not over , Just keep cycling while not GAMEOVER: # 1 Render white background MainGame.window.fill((255, 255, 255
)) # 2 Rendered text and coordinate position MainGame.window.blit( self.draw_text( ' Current amount of money $: {}'.format(
MainGame.money), 26, (255, 0, 0)), (500, 40)) MainGame.window.blit( self.
draw_text( ' Current off number {}, score {}, Not far from Xiaguan {} branch '.format( MainGame.shaoguan, MainGame.score,
MainGame.remnant_score), 26, (255, 0, 0)), (5, 40)) self.load_help_text() # 3
The map needs to be loaded repeatedly self.load_map() # 6 Call the method to load the plant self.load_plants() # 7 Call the method that loads all bullets self.
load_peabullets() # 8 Call the method of event handling self.deal_events() # 9 Call the method that shows the zombie self.
load_zombies() # 9 Counter growth , Every count to 100, Call the method that initializes the zombie MainGame.count_zombie += 1 if
MainGame.count_zombie == MainGame.produce_zombie: self.init_zombies() MainGame.
count_zombie= 0 pygame.time.wait(10) pygame.display.update() def gameOver(self):
MainGame.window.blit( self.draw_text( ' game over ', 50, (255, 0, 0)), (300, 200))
print(' game over ') pygame.time.wait(400) global GAMEOVER GAMEOVER = True if __name__
== '__main__': game = MainGame() game.start_game()

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