我正试图从我的坦克发射子弹
for event in pygame.event.get():
if event.type == pygame.MOUSEBUTTONDOWN:
if pygame.mouse.get_pressed()[0]:
cannon_ball_move_change = 1
cannon_ball_move += cannon_ball_move_change
pos_x，pos_y是主角的位置
mouse_x，mouse_y是鼠标的位置
mouse_x,mouse_y=pygame.mouse.get_pos()
mouse_radians = math.radians(-180) + math.atan2((pos_y-mouse_y),(pos_x-mouse_x))
我正指着移动枪的功能：
def player_gun(pos_x,pos_y,mouse_radians):
pygame.draw.line(screen,green,[pos_x,pos_y],[pos_x+20*math.cos(mouse_radians),pos_y+20*math.sin(mouse_radians)],5)
#'pygame.draw.line' draws a line(gun) that connects from the player and the direction of where the mouse is pointing at
pygame.draw.circle(screen,green,[pos_x,pos_y],5)
#this is the gun's body part
def player_cannonball(mouse_radians,cannon_ball_move,pos_x,pos_y):
cannonball_x = int(cannon_ball_move*(math.cos(mouse_radians))+pos_x)
cannonball_y = int(cannon_ball_move*(math.sin(mouse_radians))+pos_y)
pygame.draw.circle(screen,red,[cannonball_x,cannonball_y],5)
print(cannonball_x,cannonball_y)
调用函数
player_cannonball(mouse_radians,cannon_ball_move,pos_x,pos_y)
player_gun(pos_x,pos_y,mouse_radians)
这是在pygame中发射子弹的正确方法吗？
问题1：当我点击我要拍的地方时，我的坦克没有任何东西
（由user2588654解决）
问题2：单击拍摄后我移动鼠标，子弹移动受到鼠标移动的影响
（由user2588654解决）
这是我下面的全部代码，但你不必看到它
图片：
（某些变量与上述不同）
pos_x + 360是pos_x
pos_y + 740是pos_y
mouse_radians是radians_pt
ball_move是cannonball_move
import pygame,math,random
pygame.init()
display_width = 1200
display_height = 800
white = (255,255,255)
black = (0,0,0)
red = (200,0,0)
yellow = (150,150,0)
green=(0,170,0)
light_yellow = (255,255,0)
light_red = (255,0,0)
role_model = car_image = pygame.image.load('player1.png')
enemy = pygame.image.load('enemy.png')
background = pygame.image.load('background.png')
clock = pygame.time.Clock()
FPS = 30
screen = pygame.display.set_mode([display_width,display_height])
screen_rect = screen.get_rect()
car_width = 16
car_height = 28
smallfont =pygame.font.SysFont('comicsansms',25)
medfont =pygame.font.SysFont('comicsansms',50)
largefont =pygame.font.SysFont('comicsansms',80)
def player_car(car_image,rect,angle,pos_x,pos_y):
rot_image,rot_rect=rotate(car_image,rect,angle)
rot_rect.centerx +=pos_x
rot_rect.centery += pos_y
screen.blit(rot_image,rot_rect)
print(rot_rect)
def player_turret(pos_x,pos_y,radians_pt):
pygame.draw.line(screen,green,[pos_x+360,pos_y+740],[pos_x+360+20*math.cos(radians_pt),pos_y+740+20*math.sin(radians_pt)],5)
pygame.draw.circle(screen,green,[pos_x+360,pos_y+740],5)
def player_cannonball(radians_pt,ball_move,pos_x,pos_y):
#cannonball_count = 0
ball_x = int(ball_move*(math.cos(radians_pt))+pos_x+360)
ball_y = int(ball_move*(math.sin(radians_pt))+pos_y+740)
pygame.draw.circle(screen,red,[ball_x,ball_y],5)
print(ball_x,ball_y)
def enemy_car(enemy,rect,angle_e,pos_x_e,pos_y_e):
rot_image_e,rot_rect_e=rotate(enemy,rect,angle_e)
rot_rect_e.centerx +=pos_x_e
rot_rect_e.centery += pos_y_e
screen.blit(rot_image_e,rot_rect_e)
def death_move(pos_x,pos_y):
color_list=[light_yellow,light_red]
for i in range(40):
a=color_list[random.randrange(0,2)]
pygame.draw.circle(screen,a,[random.randint((pos_x+360)-25,(pos_x+360)+25),random.randint((pos_y+740)-25,(pos_y+740)+25)],3)
pygame.display.update()
clock.tick(FPS)
def death():
msg_to_screen('YOU ARE DEAD',red,0,size='large')
msg_to_screen('press c to continue or q to quit',black,50)
pygame.display.update()
death = True
while death:
for event in pygame.event.get():
if event.type == pygame.QUIT:
death = False
pygame.quit()
quit()
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_c:
gameloop()
death = False
elif event.key == pygame.K_q:
death = False
pygame.quit()
quit()
clock.tick(15)
def game_pause():
game_pause = True
msg_to_screen('PAUSED',black,0,'large')
msg_to_screen('press c to continue or q to quit',red,40)
pygame.display.update()
while game_pause:
for event in pygame.event.get():
if event.type == pygame.QUIT:
## controls = False
## gameintro = False
## running = False
## game_pause = False
pygame.quit()
quit()
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_c:
game_pause = False
elif event.key == pygame.K_q:
pygame.quit()
quit()
clock.tick(15)
def game_intro():
gameintro = True
while gameintro == True:
for event in pygame.event.get():
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_p:
gameloop()
gameintro = False
if event.key == pygame.K_c:
controls()
gameintro = False
if event.type == pygame.QUIT:
pygame.quit()
quit()
screen.fill(white)
msg_to_screen('CAR RACING',black,y_displace=-50,size = 'large')
msg_to_screen('press p to play and c for controls menu',red,y_displace=20)
msg_to_screen('by yeonjekim',yellow,y_displace=80)
pygame.display.update()
clock.tick(15)
def text_objects(text,color,size):
if size == "small":
textSurface = smallfont.render(text, True, color)
elif size == "medium":
textSurface = medfont.render(text, True, color)
elif size == "large":
textSurface = largefont.render(text, True, color)
return textSurface, textSurface.get_rect()
def turret(pos_x_t,pos_y_t):
pygame.draw.circle(screen,black,[pos_x_t,pos_y_t],30)
def msg_to_screen(msg,color, y_displace=0, size = "small"):
textSurf, textRect = text_objects(msg,color, size)
textRect.center = (display_width / 2), (display_height / 2)+y_displace
screen.blit(textSurf, textRect)
def controls():
controls = True
while controls == True:
for event in pygame.event.get():
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_b:
controls = False
game_intro()
elif event.type == pygame.QUIT:
pygame.quit()
quit()
screen.fill(white)
msg_to_screen('CONTROLS',black,y_displace=-100,size = 'large')
msg_to_screen('K_LEFT: go left',green,y_displace = -40)
msg_to_screen('K_RIGHT: go right',green,y_displace = 0)
msg_to_screen('K_UP: go up',green,y_displace = 40)
msg_to_screen('K_DOWN: go down',green,y_displace = 80)
msg_to_screen('K_SPACE: break',green,y_displace = 120)
msg_to_screen('K_p: pause',green,y_displace = 160)
msg_to_screen('press b to go back to the main menu',red,y_displace = 200)
pygame.display.update()
clock.tick(15)
def rotate(image, rect, angle):
rot_image = pygame.transform.rotate(image, angle)
rot_rect = rot_image.get_rect(center=rect.center)
return rot_image,rot_rect
def carRotationPos(angle):
x=1*math.cos(math.radians(angle-90))
y=1*math.sin(math.radians(angle-90))
return x,y
def gameloop():
gameintro = False
running = True
angle = -90
radians_pt = 0
radians_pt_change = 0
angle_change = 0
changeX = 0
changeY=0
max_speed = 25
x=0
y=0
pos_x=0
pos_y=0
pos_x_e= 120
pos_y_e=-30
speed = 0
speed_change = 0
change_1=0
count = 0
count_e = 0
change_2 = 0
max_speed_e = 15
slowingdown=0
angle_e=-90
mouse_x=0
mouse_y=0
cannonball_max_count = 5
ball_move =0
ball_move_change=0
moving_up = False
moving_down = False
slowdown_up = False
slowdown_down = False
rect = role_model.get_rect(center = (360,740))#center = screen_rect.center)
while running == True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
controls = False
gameintro = False
running = False
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_p:
game_pause()
elif event.key == pygame.K_LEFT:
angle_change = 5
elif event.key == pygame.K_RIGHT:
angle_change = -5
elif event.key == pygame.K_UP:
slowdown_up = False
slowdown_down = False
changeX=-x
changeY=y
speed_change = ((1/2)*speed_change**2 - (1/2)*speed_change+ 1)*0.2
moving_up = True
#start of my problem
elif event.key == pygame.K_DOWN:
slowdown_down = False
slowdown_up = False
changeX=x
changeY=-y
speed_change = ((1/2)*speed_change**2 - (1/2)*speed_change+ 1)*0.2
moving_down = True
elif event.key == pygame.K_SPACE:
change_1 =2
if event.type == pygame.KEYUP:
if event.key == pygame.K_LEFT:
angle_change = 0
elif event.key == pygame.K_RIGHT:
angle_change = 0
elif event.key == pygame.K_UP:
moving_up = False
slowdown_up = True
elif event.key == pygame.K_DOWN:
moving_down = False
slowdown_down = True
elif event.key == pygame.K_SPACE:
slowingdown = 0
change_1 = 0
max_speed = 25
if event.type == pygame.MOUSEBUTTONDOWN:
if pygame.mouse.get_pressed()[0]:
ball_move_change=1
ball_move += ball_move_change
mouse_x,mouse_y=pygame.mouse.get_pos()
mouse_gradient=math.atan2((pos_y+740-mouse_y),(pos_x+360-mouse_x))
radians_pt = mouse_gradient+math.radians(-180)
print(radians_pt)
player_cannonball(radians_pt,ball_move,pos_x,pos_y)
slowingdown+=change_1
if moving_up == True:
max_speed-=slowingdown
elif moving_down == True:
max_speed-=slowingdown
if changeX or changeY:
pos_x+=changeX
pos_y+=changeY
if angle == -360 or angle == 360:
angle = 0
if angle_change:
angle +=angle_change
if speed_change:
speed+=speed_change
if speed > max_speed:
speed = max_speed
screen.blit(background,(0,0))
x,y=carRotationPos(angle)
x=round(x*speed)
y=round(y*speed)
if slowdown_up == True:
changeX = -x
changeY = y
speed =speed- 1
if speed <=0:
speed = 0
if slowdown_down == True:
changeX = x
changeY = -y
speed =speed- 1
if speed <=0:
speed = 0
if moving_up:
changeX = -x
changeY = y
if moving_down:
changeX = x
changeY = -y
#collision detection
if pos_x<-341:
death_move(pos_x,pos_y)
death()
## pos_x = -341
## pos_x+=2
if pos_y<-720:
death_move(pos_x,pos_y)
death()
## pos_y=-720
## pos_y+=2
if pos_y>43:
death_move(pos_x,pos_y)
death()
## pos_y = 43
## pos_y-=2
if pos_x>820:
death_move(pos_x,pos_y)
death()
## pos_x = 820
## pos_x-=2
#enemy collision detection
#grass collison
if not(-308<pos_x<782 and -686<pos_y<13):
if count>20:
count = 20
count +=1
max_speed = 25-count
if slowingdown>4-change_1:
slowingdown = 4-change_1
if slowingdown<0:
slowingdown = 0
elif -228<pos_x<718 and -625<pos_y<-50:
if count>20:
count = 20
count +=1
max_speed = 25-count
if slowingdown>4-change_1:
slowingdown = 4-change_1
if slowingdown<0:
slowingdown = 0
else:
count = 0
max_speed = 25
if slowingdown>25-change_1:
slowingdown = 25-change_1
if slowingdown<0:
slowingdown = 0
#enemy grass collision
## if not(-308<pos_x_e<782 and -686<pos_y_e<13):
## if count_e>20:
## count_e = 20
## count_e +=1
##
## max_speed_e = 25-count_e
## if slowingdown>4-change_1:
## slowingdown = 4-change_1
## if slowingdown<0:
## slowingdown = 0
## elif -228<pos_x_e<718 and -625<pos_y_e<-50:
## if count_e>20:
## count_e = 20
## count_e +=1
## max_speed_e = 25-count #max_speed_e
## if slowingdown>4-change_1:
## slowingdown = 4-change_1
## if slowingdown<0:
## slowingdown = 0
## else:
## count_e = 0
## max_speed_e = 25
## if slowingdown>25-change_1:
## slowingdown = 25-change_1
## if slowingdown<0:
## slowingdown = 0
#end of the collision detection
#enemy car code
if angle_e == 270:
angle_e = -90
if -260<=pos_x_e<730 and pos_y_e == -30:
pos_x_e+=10#((1/2)*speed_change**2 - (1/2)*speed_change+ 1)*0.2
elif -90<=angle_e<0:
angle_e += 5
elif angle_e==0 and -657<pos_y_e<=-30:
pos_y_e -= 10
elif 0<=angle_e <90 and pos_y_e == -660:
angle_e +=5
elif pos_y_e == -660 and -260<pos_x_e<=730:
pos_x_e -=10
elif pos_y_e == -660 and pos_x_e == -260 and 90<=angle_e<180:
angle_e +=5
elif -660<=pos_y_e<-40 and pos_x_e == -260 and angle_e == 180:
pos_y_e += 10
elif -40<=pos_y_e<-30 and 180<=angle_e<270:
pos_y_e +=10/18
angle_e +=5
if pos_y_e ==-29.99999999999997:
pos_y_e = round(pos_y_e)
#pos_x_t = random.randint(30,600)
#pos_y_t = random.randint(30,600)
#turret(pos_x_t,pos_y_t)
#if enemy team reaches the yellow line enemy team earns a turret
#the enemy can shoot
#you can get items if you reach the yellow line, the item could be a gun for removing enemy turrets
player_car(car_image,rect,angle,pos_x,pos_y)
player_turret(pos_x,pos_y,radians_pt)
enemy_car(enemy,rect,angle_e,pos_x_e,pos_y_e)
msg_to_screen('speed = '+str(round(speed*5,1))+'km/h',black, y_displace=-375, size = "small")
pygame.display.update()
clock.tick(FPS)
game_intro()
pygame.quit()