设计一个程序,首先确在屏幕的中央设置圆心,生成一个半径为200的圆,之后以相同的圆心生成一个半径为200的直角扇形。此时,在圆内随机生成一个黑点,设置一个翻转按钮,按下此按钮,将扇形的中心移动到黑点处,并将此扇形全部变为红色,并且在控制台输出黑点的坐标和与圆心的角度
时间: 2024-05-14 07:12:13 浏览: 13
以下是Python代码实现:
```python
import pygame
import random
import math
# 初始化pygame
pygame.init()
# 设置屏幕大小和标题
screen_width = 800
screen_height = 600
screen = pygame.display.set_mode((screen_width, screen_height))
pygame.display.set_caption("Moving Sector")
# 定义颜色
BLACK = (0, 0, 0)
RED = (255, 0, 0)
# 设置圆心和半径
center_x = screen_width // 2
center_y = screen_height // 2
radius = 200
# 生成圆和扇形的surface
circle_surface = pygame.Surface((screen_width, screen_height), pygame.SRCALPHA)
pygame.draw.circle(circle_surface, BLACK, (center_x, center_y), radius)
sector_surface = pygame.Surface((screen_width, screen_height), pygame.SRCALPHA)
pygame.draw.arc(sector_surface, BLACK, (center_x - radius, center_y - radius, radius * 2, radius * 2), 0, math.pi / 2, 0)
pygame.draw.line(sector_surface, BLACK, (center_x, center_y), (center_x + radius, center_y))
pygame.draw.line(sector_surface, BLACK, (center_x, center_y), (center_x, center_y + radius))
# 随机生成黑点的坐标
black_x = random.randint(center_x - radius, center_x + radius)
black_y = random.randint(center_y - radius, center_y + radius)
# 计算黑点与圆心的距离和角度
distance = math.sqrt((black_x - center_x) ** 2 + (black_y - center_y) ** 2)
angle = math.atan2(black_y - center_y, black_x - center_x)
if angle < 0:
angle += 2 * math.pi
# 主循环
running = True
while running:
# 处理事件
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_SPACE:
# 翻转扇形并移动到黑点处
sector_surface = pygame.transform.rotate(sector_surface, math.degrees(-angle))
sector_rect = sector_surface.get_rect()
sector_rect.center = (black_x, black_y)
# 将扇形全部变为红色
pygame.draw.arc(sector_surface, RED, sector_rect, 0, math.pi / 2, 0)
pygame.draw.line(sector_surface, RED, (black_x, black_y), (black_x + radius, black_y))
pygame.draw.line(sector_surface, RED, (black_x, black_y), (black_x, black_y + radius))
# 在控制台输出黑点的坐标和与圆心的角度
print("Black point: ({}, {})".format(black_x, black_y))
print("Angle with center: {:.2f} degrees".format(math.degrees(angle)))
# 绘制圆和扇形
screen.blit(circle_surface, (0, 0))
screen.blit(sector_surface, (0, 0))
# 更新屏幕
pygame.display.flip()
# 退出pygame
pygame.quit()
```
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