如何在pygame中水平重复绘图（在类方法中完成绘图）？

Question

这是我 12 年级编码课的一项作业，重点是类和继承：

你要稍微改变一下。你的工作是使用基本形状来创建一些“面孔”。请记住，除了圆形和正方形之外，您还可以创建许多不同的基本形状。但是，一旦创建了面，您将创建继承形状但会创建新颜色的其他面的类。但是，与之前的分配不同，您的输出应该被组织，以便面部清晰地一行一行地排列，直到屏幕被填满。

问题

我正在尝试做的是制作几个形状的面孔，为每个部分设置半随机颜色，并在 pygame 中水平重复它们，并重复到下一行直到填满屏幕。我不是在寻找对所有事情的完整答案，所以关于我可以尝试的想法可能会奏效。我坚持可能创建一个循环，该循环将从我的 Face 类中获取当前 x 和 y 并将其添加到它，让它以更高的 x 值重复，在屏幕上重复面部。

到目前为止我所做的尝试

我画了第一张脸，让它出现在我想要的位置。我正在努力使用 __init__ 中的 x 和 y 坐标并更改它们。

当前代码

import pygame
from random import randint

# Define some colors
BLACK = (0, 0, 0)
WHITE = (255, 255, 255)
GREEN = (0, 255, 0)
RED = (255, 0, 0)

#  defining random colors to work with
randomColor = (randint(0, 255), randint(0, 255), randint(0, 255))
randomColor1 = (randint(0, 255), randint(0, 255), randint(0, 255))
randomColor2 = (randint(0, 255), randint(0, 255), randint(0, 255))
randomColor3 = (randint(0, 255), randint(0, 255), randint(0, 255))
randomColor4 = (randint(0, 255), randint(0, 255), randint(0, 255))
randomColor5 = (randint(0, 255), randint(0, 255), randint(0, 255))

#  creating first face (head, eyes, mouth) at the starting point 0, 0
class Face:
        def __init__(self):
            self.x = 0
            self.y = 0

        def head(self, screen):
            pygame.draw.rect(screen, GREEN, (self.x, self.y, 50, 50))

        def eyes(self, screen):
            pygame.draw.ellipse(screen, randomColor1, [self.x + 5, self.y + 15, 10, 10])
            pygame.draw.ellipse(screen, randomColor2, [self.x + 25, self.y + 15, 10, 10])

        def mouth(self, screen):
            pygame.draw.rect(screen, randomColor, (self.x + 15, self.y + 35, 30, 7))

#  creating second face with more colors
class Face2(Face):

    def head2(self, screen):
        pygame.draw.ellipse(screen, randomColor3, [self.x + 5, self.y + 15, 10, 10])

    def eyes2(self, screen):
        pygame.draw.rect(screen, randomColor4, (self.x + 5, self.y, 10, 10))
        pygame.draw.rect(screen, randomColor4, (self.x + 25, self.y, 10, 10))

    def mouth2(self, screen):
        pygame.draw.rect(screen, randomColor5, (self.x, self.y, 30, 7))

pygame.init()

# Set the width and height of the screen [width, height]
size = (700, 500)
screen = pygame.display.set_mode(size)

pygame.display.set_caption("My Game")

# Loop until the user clicks the close button.
done = False

# Used to manage how fast the screen updates
clock = pygame.time.Clock()

# -------- Main Program Loop -----------
while not done:
    # --- Main event loop
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            done = True

    # --- Game logic should go here

    # --- Screen-clearing code goes here

    # Here, we clear the screen to white. Don't put other drawing commands
    # above this, or they will be erased with this command.

    # If you want a background image, replace this clear with blit'ing the
    # background image.
    screen.fill(WHITE)

    # --- Drawing code should go here

    my_face = Face()
    my_face.head(screen)
    my_face.eyes(screen)
    my_face.mouth(screen)

    # --- Go ahead and update the screen with what we've drawn.
    pygame.display.flip()

    # --- Limit to 60 frames per second
    clock.tick(60)

# Close the window and quit.
pygame.quit()

Answer 1

您可以使用嵌套的for 循环来创建面网格。修改__init__ 方法，使其采用x 和y 坐标并将它们分配给self.x 和self.y。将Face 实例放入一个列表而不是一直在主while 循环中重新创建它们也是一个好主意。

class Face:
    def __init__(self, x, y):  # Pass the x, y coordinates ...
        self.x = x  # and assign them.
        self.y = y

faces = []  # Put all face instances into this group.
for x in range(0, size[0], 60):  # 0, 60, 120, ..., up to size[0] (exclusive).
    for y in range(0, size[1], 60):
        faces.append(Face(x, y))  # Append the next face instance.


while not done:
    # ...
    # Iterate over the faces to draw them.
    for face in faces:
        face.head(screen)
        face.eyes(screen)
        face.mouth(screen)