#include <Adafruit_GFX.h>
#include <Adafruit_ILI9341.h>

#define TFT_DC 2
#define TFT_CS 15

#define TFT_SCLK 18 
#define TFT_MOSI 23

Adafruit_ILI9341 *tft = NULL; //  = Adafruit_ILI9341(TFT_CS, TFT_DC);

#define WIDTH 240
#define HEIGHT 320
#define CENTER_X (WIDTH / 2)
#define CENTER_Y (HEIGHT / 2)
#define RADIUS 100

#define CENTER_X 160
#define CENTER_Y 120
#define RADIUS 100



void drawDialGauge() {
  tft->drawCircle(CENTER_X, CENTER_Y, RADIUS, ILI9341_WHITE);

  // Draw the ticks
  for (int i = 0; i < 360; i += 30) {
    double angle = i * PI / 180;
    int x1 = CENTER_X + (RADIUS - 10) * cos(angle);
    int y1 = CENTER_Y + (RADIUS - 10) * sin(angle);
    int x2 = CENTER_X + RADIUS * cos(angle);
    int y2 = CENTER_Y + RADIUS * sin(angle);
    tft->drawLine(x1, y1, x2, y2, ILI9341_WHITE);
  }
}

void drawPointer(int angle) {
  tft->fillCircle(CENTER_X, CENTER_Y, 5, ILI9341_RED); // Draw the center point
  double pointerAngle = angle * PI / 180;
  int pointerX = CENTER_X + (RADIUS - 20) * cos(pointerAngle);
  int pointerY = CENTER_Y + (RADIUS - 20) * sin(pointerAngle);
  tft->drawLine(CENTER_X, CENTER_Y, pointerX, pointerY, ILI9341_RED);
}

void drawFancyPointer(int angle) {
  tft->fillCircle(CENTER_X, CENTER_Y, 5, ILI9341_RED); // Draw the center point
  double pointerAngle = angle * PI / 180;
  int pointerX = CENTER_X + (RADIUS - 20) * cos(pointerAngle);
  int pointerY = CENTER_Y + (RADIUS - 20) * sin(pointerAngle);

  // Draw a thicker line for the pointer
  for (int i = -1; i <= 1; i++) {
    tft->drawLine(CENTER_X + i, CENTER_Y, pointerX + i, pointerY, ILI9341_RED);
    tft->drawLine(CENTER_X, CENTER_Y + i, pointerX, pointerY + i, ILI9341_RED);
  }

  // Add a decorative end to the pointer
  tft->fillCircle(pointerX, pointerY, 3, ILI9341_YELLOW);
}

void eraseFancyPointer(int angle) {
  tft->fillCircle(CENTER_X, CENTER_Y, 5, ILI9341_BLACK); // Draw the center point
  double pointerAngle = angle * PI / 180;
  int pointerX = CENTER_X + (RADIUS - 20) * cos(pointerAngle);
  int pointerY = CENTER_Y + (RADIUS - 20) * sin(pointerAngle);

  // Draw a thicker line for the pointer
  for (int i = -1; i <= 1; i++) {
    tft->drawLine(CENTER_X + i, CENTER_Y, pointerX + i, pointerY, ILI9341_BLACK);
    tft->drawLine(CENTER_X, CENTER_Y + i, pointerX, pointerY + i, ILI9341_BLACK);
  }

  // Add a decorative end to the pointer
  tft->fillCircle(pointerX, pointerY, 3, ILI9341_BLACK);
}
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32-S3!");

  SPIClass *spi = new SPIClass(HSPI);
  spi->begin(TFT_SCLK, -1, TFT_MOSI, TFT_CS);
  tft = new Adafruit_ILI9341(spi, TFT_CS, TFT_DC);
//  tft->setSPISpeed(80000000);
//  tft->init(WIDTH, HEIGHT, SPI_MODE0);

  tft->begin(80000000);
  tft->setRotation(1);
  tft->fillScreen(ILI9341_BLACK);
  drawDialGauge();
}

void loop() {
  static int point = 0;
  // Update the pointer angle as needed
  //drawPointer(point); // Example angle
  drawFancyPointer(point);
  delay(1);
  eraseFancyPointer(point);
  point++;
  if (point > 359) 
    point = 0;


}