C语言爱心粒子跳动代码

在C语言中，由于没有直接的HTML/CSS和JavaScript那样的绘图API，我们可以使用OpenGL ES或者SDL等库来绘制爱心粒子。这里我给出一个简易的使用SDL的例子，展示爱心粒子的基本跳动动画：

#include "SDL.h"
#include <math.h>

#define HEART_WIDTH 20
#define HEART_HEIGHT 20
#define NUM_PARTICLES 10

typedef struct Particle {
    int x, y;
    float speed, jump_height, angle;
} Particle;

void draw_heart(SDL_Renderer* renderer, Particle p) {
    SDL_SetRenderDrawColor(renderer, 255, 0, 0, 255); // 设置红色
    SDL_Rect rect = {p.x, p.y, HEART_WIDTH, HEART_HEIGHT};
    SDL_RenderFillRect(renderer, &rect);
}

void update_particles(Particle particles[], int num_particles) {
    for (int i = 0; i < num_particles; ++i) {
        particles[i].y += particles[i].speed;
        if (particles[i].y > HEART_HEIGHT) {
            particles[i].y = 0;
            particles[i].speed = -particles[i].jump_height;
            particles[i].angle += M_PI / 10;
        } else {
            particles[i].speed += 0.2;
        }
        particles[i].x = sin(particles[i].angle) * HEART_WIDTH / 2 + particles[i].y / 2;
    }
}

int main(int argc, char* args[]) {
    SDL_Init(SDL_INIT_VIDEO);

    SDL_Window* window = SDL_CreateWindow("Love Particles", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 400, 400, SDL_WINDOW_SHOWN);
    SDL_Renderer* renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);

    Particle particles[NUM_PARTICLES];
    for (int i = 0; i < NUM_PARTICLES; ++i) {
        particles[i].x = rand() % 400;
        particles[i].y = rand() % 400;
        particles[i].speed = rand() % 10 - 5;
        particles[i].jump_height = rand() % 20 + 5;
        particles[i].angle = rand() * (M_PI * 2);
    }

    while (true) {
        SDL_RenderClear(renderer);

        update_particles(particles, NUM_PARTICLES);
        for (int i = 0; i < NUM_PARTICLES; ++i) {
            draw_heart(renderer, particles[i]);
        }

        SDL_RenderPresent(renderer);

        // 检查事件
        SDL_Event event;
        while (SDL_PollEvent(&event)) {
            if (event.type == SDL_QUIT) {
                break;
            }
        }
    }

    SDL_DestroyRenderer(renderer);
    SDL_DestroyWindow(window);
    SDL_Quit();

    return 0;
}

注意：这个代码需要SDL库的支持，并且只是一个基础示例，实际应用中可能需要更复杂的碰撞检测、粒子系统管理等。