我目前正在制作一款游戏，您可以像熊一样跑来跑去，收集鱼，并获得积分。但是，当熊碰到鱼时，它不会捡起它，因为熊碰到了鱼。
我试图让函数在制作鱼的某些循环中运行，甚至使其成为一个函数，但似乎不起作用。
global screen, grasspic, bearImg, fishpic, screen_width, screen_height, score_number, bearRect
import random
import pygame
import sys
import time
import math
pygame.init()
screen_width = 640
screen_height = 480
sw2 = screen_width/2
sh2 = screen_height/2
bearImg = pygame.image.load('bear.png')
bearImg = pygame.transform.scale(bearImg, (150,150))
green = (24, 255, 0)
bearImg_width = 150
def text_objects(text, font):
textSurface = font.render(text, True, (0,0,0))
return textSurface, textSurface.get_rect()
def message_display(text):
clocktxt = pygame.font.Font('freesans.ttf', 20)
TextSurf, TextRect = text_objects(text, clocktxt)
TextRect.center = (55, 15)
screen.blit(TextSurf, TextRect)
pygame.display.update()
white = (255, 255, 255)
black = (0,0,0)
#NOTE: DOWNLOAD FISH, BEAR, AND GRASS PICTURES|| IT WILL NOT WORK WITHOUT IT
grasspic = []
for i in range(1, 5):
grasspic.append(pygame.image.load('grass%s.png' % i))
fishpic = []
for i in range(1, 3):
fishpic.append(pygame.image.load('fish%s.png' % i))
fishpic[0] = pygame.transform.scale(fishpic[0], (50,50))
fishpic[1] = pygame.transform.scale(fishpic[1], (50,50))
screen = pygame.display.set_mode((screen_width,screen_height))
pygame.display.set_caption('Hungry Boi')
clock = pygame.time.Clock()
camerax = 0
cameray = 0
def getRandomOffCameraPos(camerax, cameray, objWidth, objHeight):
cameraRect = pygame.Rect(camerax, cameray, screen_width, screen_height)
while True:
x = random.randint(camerax - screen_width, camerax + (2*screen_width))
y = random.randint(cameray - screen_height, cameray + (2*screen_height))
objRect = pygame.Rect(x, y, objWidth, objHeight)
if not objRect.colliderect(cameraRect):
return x, y
def makeNewGrass(camerax, cameray):
gr = {}
gr['grassImage'] = random.randint(0, len(grasspic) - 1)
gr['width'] = 80
gr['height'] = 80
gr['x'], gr['y'] = getRandomOffCameraPos(camerax, cameray, gr['width'], gr['height'])
gr['rect'] = pygame.Rect((gr['x'], gr['y'], gr['width'], gr['height']))
return gr
def makeNewFish(camerax, cameray):
fi = {}
fi['fishImage'] = random.randint(0, len(fishpic) - 1)
fi['width'] = 150
fi['height'] = 150
fi['x'], fi['y'] = getRandomOffCameraPos(camerax, cameray, fi['width'], fi['height'])
fi['rect'] = pygame.Rect((fi['x'], fi['y'], fi['width'], fi['height']))
return fi
def bear(x,y):
screen.blit(bearImg,(x,y))
allgrass = []
def makegrass():
for i in range(15):
allgrass.append(makeNewGrass(camerax, cameray))
allgrass[i]['x'] = random.randint(0, screen_width)
allgrass[i]['y'] = random.randint(0, screen_height)
makegrass()
allfish = []
def makefish():
for i in range(2):
allfish.append(makeNewFish(camerax, cameray))
allfish[i]['x'] = random.randint(0, screen_width)
allfish[i]['y'] = random.randint(0, screen_height)
makefish()
def game_loop():
x = (screen_width * 0.4)
y = (screen_height * 0.4)
STARTINGX = (screen_width * 0.4)
STARTINGY = (screen_height * 0.4)
x_change = 0
y_change = 0
vel = 5
gameExit = False
while not gameExit:
for event in pygame.event.get():
if event.type == pygame.QUIT:
gameExit = True
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
x_change -= vel
STARTINGX -= vel
elif event.key == pygame.K_RIGHT:
x_change += vel
STARTINGX += vel
elif event.key == pygame.K_UP:
y_change -= vel
STARTINGY -= vel
elif event.key == pygame.K_DOWN:
y_change += vel
STARTINGY += vel
if event.type == pygame.KEYUP:
if event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT:
x_change = 0
elif event.key == pygame.K_UP or event.key == pygame.K_DOWN:
y_change = 0
#print (event) #see events, basically a console, makes a mess
x += x_change
y += y_change
screen.fill(green)
bearRect = pygame.Rect((STARTINGX, STARTINGY, STARTINGX+150, STARTINGY+150))
for grass in allgrass:
gRect = pygame.Rect((grass['x'] - camerax,
grass['y'] - cameray,
grass['width'],
grass['height']))
screen.blit(grasspic[grass['grassImage']], gRect)
for fish in allfish:
fRect = pygame.Rect((fish['x'] - camerax,
fish['y'] - cameray,
fish['width'],
fish['height']))
screen.blit(fishpic[fish['fishImage']], fRect)
bear(x,y)
score_count()
if bearRect.colliderect(fRect):
makefish()
makegrass()
pygame.display.update()
clock.tick(30) #fps//may not be safe to run really fast
def score_count():
score_number = 0
message_display("Score is: " + str(score_number))
game_loop()
pygame.quit()
quit
代码不会发生碰撞并使草和鱼的图像再次随机出现在屏幕上，而是将忽略整个碰撞。有没有办法修复它，让它知道熊和鱼在哪里正确？
谢谢
答案 0 :(得分：0)
现在它可以正常工作，但是我进行了很多更改，以至于难以描述。
代码没有删除鱼肉，也没有改变得分，因此很难说是否检查了碰撞。现在，它删除了鱼（并在新位置添加了新鱼）并更改了分数。
代码将位置和大小保留在Rect中，并且每个项目仅使用一个Rect。我的旧代码Bear有两个矩形-一个用于检查碰撞，另一个用于碰撞。
在某些函数中，我更改了名称以表明它们非常相似，并且可能是一个函数。
每个对象都有image和rect。阅读pygame.sprite.Sprite的文档时，您会发现它也使用image和rect。
import random
import pygame
import sys
import time
import math
# --- constants --- (UPPER_CASE_NAMES)
GREEN = (24, 255, 0)
WHITE = (255, 255, 255)
BLACK = (0,0,0)
SCREEN_WIDTH = 640
SCREEN_HEIGHT = 480
SW2 = SCREEN_WIDTH/2
SH2 = SCREEN_HEIGHT/2
# --- functions ---
def text_objects(text, font):
surface = font.render(text, True, BLACK)
return surface, surface.get_rect()
def message_display(text):
surface, rect = text_objects(text, CLOCKTXT)
rect.center = (55, 15)
screen.blit(surface, rect)
#pygame.display.update() # use update() olny in one place
def getRandomOffCameraPos(camerax, cameray, objWidth, objHeight):
camera_rect = pygame.Rect(camerax, cameray, SCREEN_WIDTH, SCREEN_HEIGHT)
x1 = camerax - SCREEN_WIDTH
x2 = camerax + (2*SCREEN_WIDTH)
y1 = cameray - SCREEN_HEIGHT
y2 = cameray + (2*SCREEN_HEIGHT)
while True:
x = random.randint(x1, x2)
y = random.randint(y1, y2)
obj_rect = pygame.Rect(x, y, objWidth, objHeight)
if not obj_rect.colliderect(camera_rect):
return x, y
def makeNewGrass(camerax, cameray):
w, h = 80, 80
x, y = getRandomOffCameraPos(camerax, cameray, w, h)
images = grasspic
item = {
'image': random.choice(images),
'rect': pygame.Rect(x, y, w, h),
}
return item
def makeNewFish(camerax, cameray):
w, h = 50, 50
x, y = getRandomOffCameraPos(camerax, cameray, w, h)
images = fishpic
item = {
'image': random.choice(images),
'rect': pygame.Rect(x, y, w, h),
}
return item
def makegrass(number=15):
for i in range(number):
item = makeNewGrass(camerax, cameray)
item['rect'].x = random.randint(0, SCREEN_WIDTH-item['rect'].width)
item['rect'].y = random.randint(0, SCREEN_HEIGHT-item['rect'].height)
allgrass.append(item)
def makefish(number=2):
for i in range(number):
item = makeNewFish(camerax, cameray)
item['rect'].x = random.randint(0, SCREEN_WIDTH-item['rect'].width)
item['rect'].y = random.randint(0, SCREEN_HEIGHT-item['rect'].height)
allfish.append(item)
def score_draw(score):
message_display("Score is: " + str(score))
#--- main ---
pygame.init()
screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT))
pygame.display.set_caption('Hungry Boi')
CLOCKTXT = pygame.font.Font('freesans.ttf', 20)
# ---
bear_img = pygame.image.load('bear.png').convert()
bear_img = pygame.transform.scale(bear_img, (150, 150)).convert()
bear_rect = bear_img.get_rect()
bear_rect.x = SCREEN_WIDTH * 0.4
bear_rect.y = SCREEN_HEIGHT * 0.4
bear_vel = 5
grasspic = []
for i in range(1, 5):
image = pygame.image.load('grass%s.png' % i).convert()
grasspic.append(image)
fishpic = []
for i in range(1, 3):
image = pygame.image.load('fish%s.png' % i).convert()
image = pygame.transform.scale(image, (50, 50)).convert()
fishpic.append(image)
# ---
allgrass = []
makegrass()
allfish = []
makefish()
x_change = 0
y_change = 0
camerax = 0
cameray = 0
score = 0
# --- mainloop ---
gameExit = False
clock = pygame.time.Clock()
while not gameExit:
# --- events ---
for event in pygame.event.get():
if event.type == pygame.QUIT:
gameExit = True
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
x_change -= bear_vel
elif event.key == pygame.K_RIGHT:
x_change += bear_vel
elif event.key == pygame.K_UP:
y_change -= bear_vel
elif event.key == pygame.K_DOWN:
y_change += bear_vel
if event.type == pygame.KEYUP:
if event.key == pygame.K_LEFT:
x_change += bear_vel
elif event.key == pygame.K_RIGHT:
x_change -= bear_vel
elif event.key == pygame.K_UP:
y_change += bear_vel
elif event.key == pygame.K_DOWN:
y_change -= bear_vel
# --- updates ---
bear_rect.x += x_change
bear_rect.y += y_change
keep_fish = []
for fish in allfish:
if not bear_rect.colliderect(fish['rect']):
keep_fish.append(fish)
else:
makefish(1)
#makegrass()
score += 1
allfish = keep_fish
# --- draws ---
screen.fill(GREEN)
for grass in allgrass:
screen.blit(grass['image'], grass['rect'].move(camerax, cameray))
for fish in allfish:
screen.blit(fish['image'], fish['rect'].move(camerax, cameray))
screen.blit(bear_img, bear_rect.move(camerax, cameray))
score_draw(score)
pygame.display.update()
# --- FPS ---
clock.tick(30) #fps//may not be safe to run really fast
# --- end ---
pygame.quit()