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

#define TFT_RST  8
#define TFT_DC   9
#define TFT_CS   10
#define TFT_LED  7

Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_RST);

void clearScreen() {
    tft.fillScreen(ILI9341_BLACK);
}

void animateTriangle() {
    int x1 = 120; // Initial x-coordinate of the first point
    int y1 = 30;  // Initial y-coordinate of the first point
    int x2 = 30;  // Initial x-coordinate of the second point
    int y2 = 200; // Initial y-coordinate of the second point
    int x3 = 210; // Initial x-coordinate of the third point
    int y3 = 200; // Initial y-coordinate of the third point

    int size = 200; // Initial size of the triangle
    int colorStep = 5; // Smaller step for smoother color transition

    while (size > 0) {
        for (int i = 0; i < size; i++) {
            int currX1 = x1 + (x2 - x1) * i / size;
            int currY1 = y1 + (y2 - y1) * i / size;
            int currX2 = x1 + (x3 - x1) * i / size;
            int currY2 = y1 + (y3 - y1) * i / size;

            // Calculate rainbow color based on the position in the triangle
            uint16_t color = tft.color565(
                255 * (1 + sin(colorStep * i * PI / 180.0)) / 2,
                255 * (1 + sin(colorStep * (i + 120) * PI / 180.0)) / 2,
                255 * (1 + sin(colorStep * (i + 240) * PI / 180.0)) / 2
            );

            tft.drawLine(currX1, currY1, currX2, currY2, color);
        }

        size -= 10; // Reduce the size by 10 pixels
        delay(100);
        clearScreen();
    }

    // Write "arvind" in the empty space
    writeArvind();
}

// Write "arvind" in the empty space
void writeArvind() {
    // Set cursor position and text color
    tft.setCursor(80, 120); // Adjust the coordinates based on your desired position
    tft.setTextColor(ILI9341_WHITE); // Text color in white

    // Print the text
    tft.print("Arvind");
}

void setup() {
    tft.begin();
    tft.setRotation(3);
    tft.fillScreen(ILI9341_BLACK);
    pinMode(TFT_LED, OUTPUT);
    digitalWrite(TFT_LED, HIGH);

    animateTriangle(); // Updated function for drawing a colorful triangle
}

void loop() {
    // Your main code (if any) goes here
}