#include <Arduino.h>
#include <FastLED.h>  //点一个灯，点矩阵也需要
#include <FastLED_NeoMatrix.h>  //点矩阵用的
#include <Fonts/Picopixel.h>  //文字的字体在fonts目录下

#define kMatrixWidth   32
#define kMatrixHeight  8
#define BRIGHTNESS     255
#define LED_PIN        12
#define COLOR_ORDER    GRB
#define CHIPSET        WS2812B
#define NUM_LEDS       ((kMatrixWidth) * (kMatrixHeight))

CRGB leds[NUM_LEDS]; //用来存每个灯的颜色
FastLED_NeoMatrix *matrix;  //矩阵需要用这个初始化，点一个灯不需要

int led_hue = 0;
int color[6];
int color_index = 0;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.printf("Free heap in RAM: %d\n", ESP.getFreeHeap());
  Serial.printf("Free heap in PSRAM: %d\n", heap_caps_get_free_size(MALLOC_CAP_SPIRAM));
  // 要配置一共点多少灯，类型是什么，接哪根线上
  FastLED.addLeds<CHIPSET, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS);  
  FastLED.setCorrection(UncorrectedColor); //颜色修正方式，可以不写
  FastLED.setTemperature(UncorrectedTemperature); //温度修正方式，可以不写
  FastLED.setDither(DISABLE_DITHER); //抖动设置，可以不写
  //矩阵的设置
  matrix = new FastLED_NeoMatrix(leds, 32, 8, NEO_MATRIX_TOP );
  matrix->setTextWrap(false);
  matrix->setBrightness(50);
  matrix->setFont(&Picopixel);
  matrix->clear();
  matrix->setBrightness(255);
  //生成每个字的颜色
  color[0] = matrix->Color(255, 0, 0);
  color[1] = matrix->Color(0, 255, 0);
  color[2] = matrix->Color(0, 0, 255);
  color[3] = matrix->Color(255, 255, 0);
  color[4] = matrix->Color(255, 0, 255);
  color[5] = matrix->Color(0, 255, 255);
 // 把光标设置在第四行第五列，显示每个字
  matrix->setTextColor(color[0]);
  matrix->setCursor(4, 5);
  matrix->print("H");
  matrix->setTextColor(color[1]);
  matrix->print("E");
  matrix->setTextColor(color[2]);
  matrix->print("L");
  matrix->setTextColor(color[3]);
  matrix->print("L");
  matrix->setTextColor(color[4]);
  matrix->print("O");
  matrix->setTextColor(color[5]);
  matrix->print("!");
 //刷新到LED显示，不用矩阵的话用FastLED.show()
  matrix->show();
}

void loop() {

  matrix->setTextColor(color[(color_index++) % 6]);
  matrix->setCursor(4, 5);
  matrix->print("H");
  matrix->setTextColor(color[(color_index++) % 6]);
  matrix->print("E");
  matrix->setTextColor(color[(color_index++) % 6]);
  matrix->print("L");
  matrix->setTextColor(color[(color_index++) % 6]);
  matrix->print("L");
  matrix->setTextColor(color[(color_index++) % 6]);
  matrix->print("O");
  matrix->setTextColor(color[(color_index++) % 6]);
  matrix->print("!");
  color_index++;
  color_index = color_index % 6;
  matrix->show();
  // put your main code here, to run repeatedly:
  delay(1000); // this speeds up the simulation
}