#include "SPI.h"
#include "Adafruit_GFX.h"
#include "Adafruit_ILI9341.h"

#define TFT_DC 9
#define TFT_CS 10
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC);

void setup() {
  Serial.begin(115200);
  Serial.println(" shapes on Nucleo-32 SPI अरविन्द पाटील ...");
  delay(500); 
  Serial.println(" इस कोड की रचना अरविन्द द्वारा 17/11/23 ");
  delay(1000);
 
  tft.begin();

  // Display three filled circles with different colors
  tft.fillCircle(60, 200, 20, ILI9341_RED);    // Circle 1 (x=60, y=100, radius=20)
  tft.fillCircle(120, 200, 20, ILI9341_GREEN);  // Circle 2 (x=120, y=100, radius=20)
  tft.fillCircle(180, 200, 20, ILI9341_BLUE);   // Circle 3 (x=180, y=100, radius=20)

  // Draw a color gradient triangle
  drawColorGradientTriangle();

  // Add text by Arvind Patil in yellow color
  tft.setTextColor(ILI9341_YELLOW);
  tft.setTextSize(3);
  tft.setCursor(10, 230);
  tft.print("Arvind Patil");
  tft.setTextColor(ILI9341_CYAN);
  tft.setTextSize(2);
  tft.setCursor(10, 10);
  tft.print("by simulation");
}

void drawColorGradientTriangle() {
  int triangleSize = 120;
  int startX = 60;
  int startY = 30;

  // Draw the triangle using interpolated colors along the edges
  for (int i = 0; i < triangleSize; i++) {
    int color1 = colorRangeMap(i, 0, triangleSize, ILI9341_RED, ILI9341_GREEN);
    int color2 = colorRangeMap(i, 0, triangleSize, ILI9341_GREEN, ILI9341_BLUE);
    int color3 = colorRangeMap(i, 0, triangleSize, ILI9341_BLUE, ILI9341_RED);

    int x1 = startX + i;
    int y1 = startY + i;
    int x2 = startX + triangleSize;
    int y2 = startY + triangleSize;
    
    tft.drawLine(x1, y1, x2, y2, color1);
    tft.drawLine(x1, y1, startX, startY + triangleSize, color2);
    tft.drawLine(x2, y2, startX, startY + triangleSize, color3);
  }
}

int colorRangeMap(int value, int in_min, int in_max, int out_min, int out_max) {
  return (value - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
}

void loop() {
  // Your main code here
}