用c4roiod实现贪吃蛇代码实例

以下是使用C4roid实现贪吃蛇游戏的示例代码。请注意，这只是一个基本的示例，您可以根据需要进行修改和扩展。

#include <SDL/SDL.h>
#include <time.h>

#define SCREEN_WIDTH 480
#define SCREEN_HEIGHT 800
#define SNAKE_SIZE 20
#define FOOD_SIZE 20
#define MAX_SNAKE_LENGTH 100

typedef struct {
    int x, y;
} Point;

int main(int argc, char *argv[]) {
    SDL_Init(SDL_INIT_VIDEO);
    SDL_Surface *screen = SDL_SetVideoMode(SCREEN_WIDTH, SCREEN_HEIGHT, 16, SDL_HWSURFACE | SDL_DOUBLEBUF);
    SDL_WM_SetCaption("Snake", NULL);
    SDL_Event event;

    int quit = 0;

    Point snake[MAX_SNAKE_LENGTH];
    int snake_length = 3;
    int snake_direction = 1;

    Point food;
    food.x = rand() % (SCREEN_WIDTH / FOOD_SIZE) * FOOD_SIZE;
    food.y = rand() % (SCREEN_HEIGHT / FOOD_SIZE) * FOOD_SIZE;

    while (!quit) {
        SDL_PollEvent(&event);
        switch (event.type) {
            case SDL_QUIT:
                quit = 1;
                break;
            case SDL_KEYDOWN:
                switch (event.key.keysym.sym) {
                    case SDLK_UP:
                        snake_direction = 0;
                        break;
                    case SDLK_DOWN:
                        snake_direction = 1;
                        break;
                    case SDLK_LEFT:
                        snake_direction = 2;
                        break;
                    case SDLK_RIGHT:
                        snake_direction = 3;
                        break;
                }
                break;
        }

        // 移动蛇
        for (int i = snake_length - 1; i > 0; i--) {
            snake[i].x = snake[i - 1].x;
            snake[i].y = snake[i - 1].y;
        }
        switch (snake_direction) {
            case 0:
                snake[0].y -= SNAKE_SIZE;
                break;
            case 1:
                snake[0].y += SNAKE_SIZE;
                break;
            case 2:
                snake[0].x -= SNAKE_SIZE;
                break;
            case 3:
                snake[0].x += SNAKE_SIZE;
                break;
        }

        // 判断是否吃到食物
        if (snake[0].x == food.x && snake[0].y == food.y) {
            snake_length++;
            food.x = rand() % (SCREEN_WIDTH / FOOD_SIZE) * FOOD_SIZE;
            food.y = rand() % (SCREEN_HEIGHT / FOOD_SIZE) * FOOD_SIZE;
        }

        // 判断是否撞墙或撞到自己的身体
        if (snake[0].x < 0 || snake[0].x >= SCREEN_WIDTH || snake[0].y < 0 || snake[0].y >= SCREEN_HEIGHT) {
            quit = 1;
        }
        for (int i = 1; i < snake_length; i++) {
            if (snake[0].x == snake[i].x && snake[0].y == snake[i].y) {
                quit = 1;
            }
        }

        // 渲染游戏画面
        SDL_Rect rect;
        SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0));
        rect.w = SNAKE_SIZE;
        rect.h = SNAKE_SIZE;
        rect.x = food.x;
        rect.y = food.y;
        SDL_FillRect(screen, &rect, SDL_MapRGB(screen->format, 255, 255, 0));
        for (int i = 0; i < snake_length; i++) {
            rect.x = snake[i].x;
            rect.y = snake[i].y;
            SDL_FillRect(screen, &rect, SDL_MapRGB(screen->format, 0, 255, 0));
        }
        SDL_Flip(screen);

        SDL_Delay(100);
    }

    SDL_Quit();
    return 0;
}

希望这个示例能够对您有所帮助。如果您有任何问题或需要更多帮助，请随时告诉我。