#include <LedControl.h>

#define MAX7219_NUM 4            // 点阵屏数量
const int MAX7219_DIN_PIN = 12;  // 数据引脚
const int MAX7219_CS_PIN = 11;   // 片选脚
const int MAX7219_CLK_PIN = 10;  // 时钟引脚

LedControl max7219(MAX7219_DIN_PIN, MAX7219_CLK_PIN, MAX7219_CS_PIN, MAX7219_NUM);  // lc是建立的对象

// 定义不同屏幕的动画图案
byte Frame1[8] = { 0x00,0x18,0x3c,0x1e,0x1e,0x3c,0x18,0x00 };  // 屏幕2的动画帧
byte Frame2[8] = { 0x38, 0x7c, 0x7e, 0x3f, 0x3f, 0x7e, 0x7c, 0x38 };  // 屏幕2的动画帧

void setup() {
  Serial.begin(9600);

  // 初始化所有点阵屏幕
  for (int i = 0; i < MAX7219_NUM; i++) {
    max7219.shutdown(i, false);  // 启动屏幕
    max7219.setIntensity(i, 8);  // 设置亮度
    max7219.clearDisplay(i);     // 清除屏幕
  }
}

void loop() {
  // 每块屏幕分别播放不同动画
  byte *screen1Frames[] = { Frame1, Frame2 };
  playAnimationOnScreen(0, screen1Frames, 2, 200);  
  playAnimationOnScreen(1, screen1Frames, 2, 300);  
playAnimationOnScreen(2, screen1Frames, 2, 400);  
playAnimationOnScreen(3, screen1Frames, 2, 500);                     
}

// 点阵显示函数
void printByte(byte character[], int screen) {
  for (int i = 0; i < 8; i++)
    max7219.setRow(screen, i, character[i]);
}

// 屏幕动态动画函数
void playAnimationOnScreen(int screen, byte *frames[], int frameCount, int frameDelay) {
  static int currentFrame[4] = { 0, 0, 0, 0 };  // 每块屏幕的帧索引
  static unsigned long lastUpdate[4] = { 0, 0, 0, 0 };  // 每块屏幕的更新时间

  if (millis() - lastUpdate[screen] >= frameDelay) {
    lastUpdate[screen] = millis();
    printByte(frames[currentFrame[screen]], screen);  // 显示当前帧
    currentFrame[screen] = (currentFrame[screen] + 1) % frameCount;  // 切换到下一帧
  }
}