pymunk构建一个静态圆弧曲面的示例代码

以下是一个使用pymunk构建静态圆弧曲面的示例代码：

import pymunk
import pygame

pygame.init()
screen = pygame.display.set_mode((600, 600))
clock = pygame.time.Clock()

space = pymunk.Space()
space.gravity = (0, 1000)

# 创建静态刚体
static_body = space.static_body

# 创建圆弧形状
radius = 200
segment = pymunk.Segment(static_body, (100, 300), (500, 300), radius)
segment.friction = 1
segment.elasticity = 0.5
space.add(segment)

# 创建小球
ball_body = pymunk.Body(1, 1)
ball_body.position = (100, 100)
ball_shape = pymunk.Circle(ball_body, 20)
ball_shape.friction = 1
ball_shape.elasticity = 0.5
space.add(ball_body, ball_shape)

# 渲染循环
while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            quit()

    # 更新物理世界
    space.step(1 / 60)

    # 清屏
    screen.fill((255, 255, 255))

    # 绘制圆弧
    pygame.draw.arc(screen, (0, 0, 0), (100 - radius, 300 - radius, radius * 2, radius * 2), 0, 3.14)

    # 绘制小球
    pos = ball_body.position
    pygame.draw.circle(screen, (255, 0, 0), (int(pos.x), int(pos.y)), 20)

    # 刷新屏幕
    pygame.display.update()
    clock.tick(60)

希望这个示例代码能够帮助你。