重力- PYGAME

import pygame
import sys

# 初始化PYGAME
pygame.init()

# 设置窗口大小
screen = pygame.display.set_mode((800, 600))
clock = pygame.time.Clock()

# 角色初始位置和速度
player_pos = [400, 500]
player_vel = [0, 0]
GRAVITY = 0.5
JUMP_FORCE = -10

running = True
while running:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_SPACE and player_pos[1] >= 500:
                player_vel[1] = JUMP_FORCE

    # 应用重力
    player_vel[1] += GRAVITY

    # 更新位置
    player_pos[0] += player_vel[0]
    player_pos[1] += player_vel[1]

    # 边界检查
    if player_pos[1] >= 500:
        player_pos[1] = 500
        player_vel[1] = 0

    # 绘制
    screen.fill((255, 255, 255))
    pygame.draw.circle(screen, (0, 0, 255), [int(player_pos[0]), int(player_pos[1])], 20)
    pygame.display.flip()

    clock.tick(60)

pygame.quit()
sys.exit()