问题
I'm making a pygame game where a character is currently moving around on a screen and can buy items from a shop. I want the character to be able to drop the bombs that he buys from the shop in the location of the player (I need to fix this). I'm attaching my whole code along with some screen shots. Any help is appreciated, thank you.
import pygame
pygame.font.init()
width = 900
height = 600
screen = pygame.display.set_mode([width, height])
walkRight = [pygame.image.load('R1.png'), pygame.image.load('R2.png'), pygame.image.load('R3.png'),
pygame.image.load('R4.png'), pygame.image.load('R5.png'), pygame.image.load('R6.png'),
pygame.image.load('R7.png'), pygame.image.load('R8.png'), pygame.image.load('R9.png')]
walkLeft = [pygame.image.load('L1.png'), pygame.image.load('L2.png'), pygame.image.load('L3.png'),
pygame.image.load('L4.png'), pygame.image.load('L5.png'), pygame.image.load('L6.png'),
pygame.image.load('L7.png'), pygame.image.load('L8.png'), pygame.image.load('L9.png')]
char = pygame.image.load('standing.png')
bomb_pic = pygame.transform.scale(pygame.image.load('bomb.png'), (20,20))
# char_rect = char.get_rect()
x = 50
y = 50
width = 40
height = 60
vel = 5
isJump = False
jumpCount = 10
left = False
right = False
down = False
up = False
walkCount = 0
shop = pygame.transform.scale(pygame.image.load("shop.png"), (60, 60))
clock = pygame.time.Clock()
FPS = 60
bag = {'bomb': 0}
print(bag["bomb"])
class Button():
def __init__(self, color, x, y, width, height, text=''):
self.color = color
self.x = x
self.y = y
self.width = width
self.height = height
self.text = text
def draw(self, win, outline=None):
# Call this method to draw the button on the screen
if outline:
pygame.draw.rect(win, outline, (self.x - 2, self.y - 2, self.width + 4, self.height + 4), 0)
pygame.draw.rect(win, self.color, (self.x, self.y, self.width, self.height), 0)
if self.text != '':
font = pygame.font.SysFont('comicsans', 20)
text = font.render(self.text, 1, (0, 0, 0))
win.blit(text, (
self.x + (self.width / 2 - text.get_width() / 2), self.y + (self.height / 2 - text.get_height() / 2)))
def shop_run():
shop_bomb = Button((0, 200, 0), 820, 150, 60, 20, text="Bomb_q")
bright_green = (0, 255, 0)
green = (0, 200, 0)
shop_bomb.draw(screen)
def redrawGameWindow():
global walkCount
screen.fill([166, 166, 166])
pygame.draw.rect(screen, (0, 0, 0), (800, 0, 100, 600))
if x + char.get_width() < 60 and y + char.get_height() < 60:
shop_run()
screen.blit(shop, (0, 0))
if walkCount + 1 >= 27:
walkCount = 0
if left:
screen.blit(walkLeft[walkCount // 3], (x, y))
walkCount += 1
elif right:
screen.blit(walkRight[walkCount // 3], (x, y))
walkCount += 1
elif down:
screen.blit(char, (x, y))
walkcount = 0
elif up:
screen.blit(char, (x, y))
walkcount = 0
else:
screen.blit(char, (x, y))
walkCount = 0
buy = pygame.key.get_pressed()
if buy[pygame.K_SPACE] and bag["bomb"] >= 1:
screen.blit(bomb_pic,(x,y))
pygame.display.update()
def main():
run = True
# shopper()
pygame.display.set_caption("bomb-mania")
global x
global y
global width
global height
global vel
global isJump
global jumpCount
global left
global right
global down
global up
global walkCount
global bomb_pic
while run:
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False
if x + char.get_width() < 60 and y + char.get_height() < 60:
buy = pygame.key.get_pressed()
if buy[pygame.K_q]:
bag["bomb"] += 1
print(bag["bomb"])
redrawGameWindow()
keys = pygame.key.get_pressed()
if keys[pygame.K_LEFT] and x > vel - 15:
x -= vel
left = True
right = False
down = False
up = False
elif keys[pygame.K_RIGHT] and x < 800 - vel - width:
x += vel
left = False
right = True[![enter image description here][1]][1]
down = False
up = False
elif keys[pygame.K_DOWN] and y < 600 - height:
y += vel
left = False
right = False
down = True
up = False
elif keys[pygame.K_UP] and y > vel - 15:
y -= vel
left = False
right = False
down = False
up = True
else:
left = False
right = False
down = False
up = False
walkCount = 0
clock.tick(FPS)
pygame.display.flip()
main()
回答1:
Add a list for the bombs:
bombs = []
Add the position of the bomb to the list, when space is pressed. Use the event loop and the KEYDOWN event to spawn bombs, because you want to drap only on bomb when the key is pressed rather than multiple bombs when the key is hold down:
def main():
global bombs
while run:
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False
if event.type == pygame.KEYDOWN:
if event.key = pygame.K_SPACE and bag["bomb"] >= 1:
bombs.append((x, y))
# [...]
Draw the bombs in redrawGameWindow in a loop:
def redrawGameWindow():
# [...]
for pos in bombs:
screen.blit(bomb_pic, pos)
pygame.display.update()
回答2:
You're only drawing the bomb when you press the space bar. You have to draw it continuously. You need to add these three things in your code (not directly after each other as shown here).
# Create a list to keep track on the bombs positions (do this **before**
# the game loop). Could be a global variable if you want.
bomb_positions = []
# Add a bomb when you press space. Do this in the event loop and not with
# 'pygame.key.get_pressed()', because that will add a new bomb every frame if
# you hold down the spacebar.
for event in pygame.event.get():
if event.type == pygame.KEYDOWN and event.key == pygame.K_SPACE:
bomb_positions.append((x, y))
# Draw all the bombs at their position. If the list is empty, nothing will
# be drawn.
for bomb_position in bomb_positions:
screen.blit(bomb_pic, bomb_position)
来源：https://stackoverflow.com/questions/62066092/how-to-drop-a-bomb-in-character-position-in-a-pygame-game