### Pygame 实现与 Raylib 类似的无人机功能 以下内容详细描述了如何使用 Pygame 实现与 C++ Raylib 代码等效的功能，包括无人机绘制、农场地块检测和交互逻辑。 --- #### 窗口初始化与背景绘制 在 Pygame 中，窗口初始化通过 `pygame.init()` 和 `pygame.display.set_mode()` 完成。背景绘制可以通过 `screen.fill()` 或 `pygame.draw.rect()` 方法实现[^1]。 ```python import pygame import random # 初始化 Pygame pygame.init() # 设置窗口大小和标题 screen_width, screen_height = 800, 600 screen = pygame.display.set_mode((screen_width, screen_height)) pygame.display.set_caption("Drone Simulation") # 定义颜色 BLACK = (0, 0, 0) WHITE = (255, 255, 255) LIGHTGRAY = (200, 200, 200) DARKGRAY = (100, 100, 100) BROWN = (139, 69, 19) DARKGREEN = (0, 100, 0) SKYBLUE = (135, 206, 235) # 绘制背景 def draw_background(): screen.fill(LIGHTGRAY) # 背景颜色 pygame.draw.rect(screen, SKYBLUE, (0, 0, screen_width, 50)) # 顶部天空区域 pygame.draw.circle(screen, YELLOW, (screen_width - 100, 100), 40) # 太阳 ``` --- #### 农场地块类定义 农场地块可以通过一个类来表示，包含位置、大小和是否被喷洒的状态。地块的绘制和碰撞检测通过 `pygame.Rect` 实现[^2]。 ```python class FarmPlot: def __init__(self, x, y): self.rect = pygame.Rect(x, y, 80, 80) self.sprayed = False def draw(self, surface): if self.sprayed: pygame.draw.rect(surface, DARKGREEN, self.rect) # 喷洒后的绿色地块 for i in range(5): pygame.draw.line(surface, GREEN, (self.rect.x + 10 + i * 15, self.rect.y + 10), (self.rect.x + 10 + i * 15, self.rect.y + 70), 2) else: pygame.draw.rect(surface, BROWN, self.rect) # 未喷洒的棕色地块 pygame.draw.circle(surface, DARKBROWN, (self.rect.x + 20, self.rect.y + 25), 5) pygame.draw.circle(surface, DARKBROWN, (self.rect.x + 55, self.rect.y + 60), 8) pygame.draw.circle(surface, DARKBROWN, (self.rect.x + 40, self.rect.y + 40), 6) ``` --- #### 无人机类定义 无人机的移动、旋转和绘制通过一个类实现。旋翼的旋转效果可以通过调整旋翼的角度实现[^3]。 ```python class Drone: def __init__(self, x, y): self.position = pygame.math.Vector2(x, y) self.speed = 5 self.rotation = 0 def move(self, keys): if keys[pygame.K_UP]: self.position.y -= self.speed if keys[pygame.K_DOWN]: self.position.y += self.speed if keys[pygame.K_LEFT]: self.position.x -= self.speed if keys[pygame.K_RIGHT]: self.position.x += self.speed # 限制无人机在屏幕内 self.position.x = max(30, min(screen_width - 30, self.position.x)) self.position.y = max(80, min(screen_height - 30, self.position.y)) def draw(self, surface): rect = pygame.Rect(self.position.x - 20, self.position.y - 12, 40, 24) pygame.draw.rect(surface, DARKGRAY, rect, border_radius=5) # 主体 # 绘制旋翼 blade_length = 15 prop_top = (self.position.x, self.position.y - 28) prop_bottom = (self.position.x, self.position.y + 28) prop_left = (self.position.x - 28, self.position.y) prop_right = (self.position.x + 28, self.position.y) pygame.draw.line(surface, SKYBLUE, (prop_top[0] - blade_length, prop_top[1]), (prop_top[0] + blade_length, prop_top[1])) pygame.draw.line(surface, SKYBLUE, (prop_bottom[0] - blade_length, prop_bottom[1]), (prop_bottom[0] + blade_length, prop_bottom[1])) pygame.draw.line(surface, SKYBLUE, (prop_left[0], prop_left[1] - blade_length), (prop_left[0], prop_left[1] + blade_length)) pygame.draw.line(surface, SKYBLUE, (prop_right[0], prop_right[1] - blade_length), (prop_right[0], prop_right[1] + blade_length)) ``` --- #### 主循环逻辑 主循环负责事件处理、更新逻辑和绘制内容。碰撞检测通过 `pygame.Rect.colliderect()` 实现[^4]。 ```python # 初始化农场地块 farm_plots = [] for _ in range(5): x = random.randint(50, screen_width - 130) y = random.randint(150, screen_height - 130) farm_plots.append(FarmPlot(x, y)) # 初始化无人机 drone = Drone(screen_width // 2, screen_height // 2) # 初始化分数 score = 0 clock = pygame.time.Clock() running = True while running: for event in pygame.event.get(): if event.type == pygame.QUIT: running = False keys = pygame.key.get_pressed() drone.move(keys) # 检测碰撞 for plot in farm_plots: if not plot.sprayed and plot.rect.collidepoint(drone.position.x, drone.position.y): plot.sprayed = True score += 1 # 绘制背景 draw_background() # 绘制农场地块 for plot in farm_plots: plot.draw(screen) # 绘制无人机 drone.draw(screen) # 显示分数 font = pygame.font.SysFont(None, 36) text = font.render(f"Score: {score}", True, BLACK) screen.blit(text, (10, 10)) # 刷新屏幕 pygame.display.flip() clock.tick(60) pygame.quit() ``` ---