#include <Adafruit_ILI9341.h>
Adafruit_ILI9341 tft(10,9);

void drawArc(int x, int y, int r, int startAngle, int endAngle, uint16_t color) {
  for(int i=startAngle+1; i<endAngle; i++) {
    int x_pos = r*cos((i*3.14)/180);
    int y_pos = r*sin((i*3.14)/180);
    tft.drawPixel(x_pos+x, y-y_pos, color);
  }
}

void drawDigit(int n, int x, int y, uint16_t color) {
  switch(n) {
    case 0 :
      tft.drawRoundRect(x, y, 80, 140, 40, color);
      tft.drawRoundRect(x+20, y+20, 40, 100, 20, color); break;
    case 1 :
      tft.drawRoundRect(x+60, y, 20, 140, 10, color); break;
    case 2 :
      tft.drawLine(x, y, x+40, y, color);
      tft.drawLine(x, y, x, y+20, color);
      drawArc(x+40, y+40, 41, -90, 90, color);
      tft.drawLine(x, y+20, x+40, y+20, color);
      drawArc(x+40, y+40, 21, -90, 90, color);
      drawArc(x+40, y+100, 41, 90, 180, color);
      drawArc(x+40, y+100, 21, 90, 180, color);
      tft.drawLine(x, y+100, x, y+140, color);
      tft.drawLine(x+20, y+100, x+20, y+120, color);
      tft.drawLine(x, y+140, x+80, y+140, color);
      tft.drawLine(x+20, y+120, x+80, y+120, color);
      tft.drawLine(x+80, y+120, x+80, y+140, color);
       break;
    case 3 :
      tft.drawLine(x, y, x+40, y, color);               // Top horizontal line
      drawArc(x+40, y+20, 41, -90, 90, color);         // Top-right outer arc
      drawArc(x+40, y+20, 21, -90, 90, color);         // Top-right inner arc
      tft.drawLine(x+20, y+40, x+80, y+40, color);     // Middle horizontal line
      drawArc(x+40, y+60, 41, -90, 90, color);         // Bottom-right outer arc
      drawArc(x+40, y+60, 21, -90, 90, color);         // Bottom-right inner arc
      tft.drawLine(x, y+80, x+40, y+80, color);        // Bottom horizontal line
      break;
    case 4 :
      tft.drawLine(x+60, y, x+60, y+80, color);        // Vertical line (right)
      tft.drawLine(x, y+40, x+60, y+40, color);        // Horizontal line (middle)
      tft.drawLine(x, y+40, x, y+20, color);           // Vertical line (left top)
      tft.drawLine(x, y+20, x+20, y, color);           // Diagonal line (top left to center)


  }
}

void setup() {
  tft.begin();

}

void loop() {
  drawDigit(4 , 20, 10, 0xffff);

}