#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include "LCD_Display.h"

int num = 0;
int T_Developer = 0;
LiquidCrystal_I2C lcd(0x27, 20, 4);

// 定义一个自定义字符（5x8 点阵的心形图案）
/*uint8_t heart[8] = {
  0b00000,
  0b01010,
  0b11111,
  0b11111,
  0b11111,
  0b01110,
  0b00100,
  0b00000
  };*/

void setup() {
  lcd.begin(20, 4);  // 初始化 LCD 显示器
  //lcd.createChar(0, heart);  // 将自定义字符存储到 LCD 的字符位置 0
  lcd.backlight();  // 打开背光

  /*lcd.setCursor(0, 0);
    lcd.print("Custom Char: ");
    lcd.setCursor(14, 0);
    lcd.write((uint8_t)0);  // 显示自定义字符
    delay(1000);*/
}
/*
// LCD显示通用副程式(for 11/01)
// mode_display(显示模式), Rows(列) -, Cols(行) |, str(字串), num(整数)
void LCD_Display(char mode_display, int Rows, int Cols, String str, long num) {
  // LCD文字显示，通用格式# LCD_Display('A', 0, 0, "str", NULL);
  if (mode_display == 'A') {
    lcd.setCursor(Rows, Cols);
    lcd.print(str);
  }
  // LCD数字显示，通用格式# LCD_Display('B', 0, 0, "", num);
  else if (mode_display == 'B') {
    lcd.setCursor(Rows, Cols);
    lcd.print(num);
  }
  // LCD进阶显示，通用格式# LCD_Display('C', 0, 0, "str", num);
  else if (mode_display == 'C') {
    lcd.setCursor(Rows, Cols);
    lcd.print(str);
    lcd.print(num);
  }
  // LCD单行清除，通用格式# LCD_Display('D', 0, 0, "", NULL);
  else if (mode_display == 'D') {
    lcd.setCursor(Rows, Cols);
    for (int i = Rows; i < 20; i++)
      lcd.print(" ");
  }
  // LCD多行清除，通用格式# LCD_Display('E', 0, 1, "", NULL);
  else if (mode_display == 'E') {
    for (int i = Cols; i < 3; i++) {
      lcd.setCursor(Rows, i);
      for (int j = Rows; j < 20; j++)
        lcd.print(" ");
    }
  }
  // LCD步數显示（单位至多十万），通用格式# LCD_Display('F', 0, 2, "X: ", num);
  else if (mode_display == 'F') {
    lcd.setCursor(Rows, Cols);
    int length = str.length();
    lcd.print(str);
    int digits = (num == 0) ? 6 : log10(num) + 1;
    int position = Rows + length + (6 - digits);
    lcd.setCursor(position, Cols);
    if (num == 0) {
      for (int i = 0; i < 6; i++)
        lcd.print("0");
    } else
      lcd.print(num);
  }
}*/

void loop() {
  LCD_Display(lcd, 'A', 0, 1, "- Version : ", NULL);
  LCD_Display(lcd, 'A', 3, 2, "New_mode-V2.5t", NULL);
  /*LCD_Display('F', 0, 2, "X: ", num);
  LCD_Display('F', 11, 2, "Y: ", num);
  num++;*/
  T_Developer++;
  if (T_Developer > 7)
    T_Developer = 0;
  delay(1000);
}