在 Pygame 中正确旋转 Cannon 的问题仍然存在 [英] Still Having Problems With Rotating Cannon's Properly Towards The Player Pygame
问题描述
以前很少有人帮助我解决这个问题，但旋转仍然很混乱我的大炮不会向玩家旋转，很好，它们都不合适我真的需要帮助遇到这个问题，这是我第一次尝试让某些东西朝向玩家旋转我试图让我的大炮口向玩家旋转，但
图像的中心是佳能的旋转点.您可以将图像缩放到您想要的任何大小.例如 100x100:
self.shootsright = pygame.image.load("canss.png")self.shootsright = pygame.transform.smoothscale(self.shootsright, (100, 100))另请参阅
few people have helped me with this problem before but the rotation is still messed up my Cannons wont rotate towards the player good they are all out of place I really need help with this problem its my first time trying to make something rotate towards a player I am trying to make my cannon mouth rotate towards player, but the rotation is messed up and up I don't know how to fix it.
class enemyshoot:
def __init__(self,x,y,height,width,color):
# [...............]
self.look_at_pos = (x,y)
def draw(self):
# [............]
self.rect = self.shootsright.get_rect(topleft = (self.x, self.y))
dx = self.look_at_pos[0] - self.rect.centerx
dy = self.look_at_pos[1] - self.rect.centery
angle = (180/math.pi) * math.atan2(-dx, dy)
(window.blit(self.image, self.rect))
self.image = pygame.transform.rotate(self.shootsright, angle)
self.rect = self.image.get_rect(center = self.rect.center)
def lookAt( self, coordinate ):
self.look_at_pos = coordinate
My full enemyshoot class
shotsright = pygame.image.load("canss.png")
class enemyshoot:
def __init__(self,x,y,height,width,color):
self.x = x
self.y =y
self.height = height
self.width = width
self.color = color
self.health = 10
self.hitbox = (self.x + -20, self.y + 30, 31, 57)
#-------------------------------------------------------
# Make a Reference Copy of the bitmap for later rotation
self.shootsright = pygame.image.load("canss.png")
self.shootsright = pygame.transform.scale(self.shootsright,(self.shootsright.get_width()-150,self.shootsright.get_height()-150))
self.image = self.shootsright
self.rect = self.image.get_rect()
self.position = pygame.math.Vector2( (x, y) )
self.isLookingAtPlayer = False
self.look_at_pos = (x,y)
def draw(self):
self.rect.topleft = (self.x,self.y)
window.blit(self.image, self.rect)
self.rect = self.shootsright.get_rect(topleft = (self.x, self.y))
dx = self.look_at_pos[0] - self.rect.centerx
dy = self.look_at_pos[1] - self.rect.centery
angle = (180/math.pi) * math.atan2(-dy, dx)
self.image = pygame.transform.rotate(self.shootsright, angle)
self.rect = self.image.get_rect(center = self.rect.center)
# ------------
self.hits = (self.x + 20, self.y, 28,60)
pygame.draw.rect(window, (255,0,0), (self.hitbox[0], self.hitbox[1] - 60, 100, 10)) # NEW
pygame.draw.rect(window, (0,255,0), (self.hitbox[0], self.hitbox[1] - 60, 100 - (5 * (10 - self.health)), 10))
self.hitbox = (self.x + 200, self.y + 200, 51, 65)
def lookAt( self, coordinate ):
self.look_at_pos = coordinate
black = (0,0,0)
enemyshooting = []
platformGroup = pygame.sprite.Group
platformList = []
level = [" p p p p p ",
" ",
" ",
" ",
" ",
" ",
" ",
" ",
" ",
" ",
" ",]
for iy, row in enumerate(level):
for ix, col in enumerate(row):
if col == "p":
new_platforms = enemyshoot(ix*10, iy*50, 10,10,(255,255,255))
enemyshooting.append(new_platforms)
This is where the cannons rotate towards the player, wherever they are
for enemyshoot in enemyshooting:
if not enemyshoot.isLookingAtPlayer:
enemyshoot.lookAt((playerman.x, playerman.y))
First of all the cannon image is far too tall. Clip the border and use a smaller image. For instance:
The center of the image is the rotation point of the canon. You can scale the image to any size you want. For instance 100x100:
self.shootsright = pygame.image.load("canss.png")
self.shootsright = pygame.transform.smoothscale(self.shootsright, (100, 100))
See also How to rotate an image(player) to the mouse direction?.
Anyway you have to blit the cannon after rotating the image and computing the rectangle.
class enemyshoot:
def __init__(self,x,y,height,width,color):
self.x = x
self.y = y
# [...]
self.shootsright = pygame.image.load("canss.png")
self.shootsright = pygame.transform.smoothscale(self.shootsright, (100, 100))
self.image = self.shootsright
self.rect = self.image.get_rect(center = (self.x, self.y))
self.look_at_pos = (self.x, self.y)
self.hitbox = (*self.rect.topleft, *self.rect.size)
def draw(self):
dx = self.look_at_pos[0] - self.x
dy = self.look_at_pos[1] - self.y
angle = (180/math.pi) * math.atan2(dx, dy)
self.image = pygame.transform.rotate(self.shootsright, angle)
self.rect = self.image.get_rect(center = (self.x, self.y))
window.blit(self.image, self.rect)
self.hitbox = (*self.rect.topleft, *self.rect.size)
def lookAt( self, coordinate ):
self.look_at_pos = coordinate
Minimal example:
这篇关于在 Pygame 中正确旋转 Cannon 的问题仍然存在的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
