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

#define TFT_SCK  13
#define TFT_MOSI 11
#define MISO     12
#define TFT_CS   10
#define TFT_DC   9
#define TFT_RST  8

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

void drawColorGradientSquare();
void displayColorSquareGrid();
void displayColorTriangles();
void drawCircles();
void writeDiagonally();
int colorRangeMap(int value, int in_min, int in_max, int out_min, int out_max);

void setup() {
  Serial.begin(115200);
  delay(500);
  delay(1000);

  // Initialize the TFT display
  tft.begin();
  tft.setRotation(3); // Adjust the rotation if necessary
}

void loop() {
  drawColorGradientSquare();
  delay(5000);
  tft.fillScreen(ILI9341_BLACK);
  displayText("Arvind Patil", 2000);

  displayColorSquareGrid();
  delay(2500);
  tft.fillScreen(ILI9341_BLACK);
  displayText("Arvind Patil", 2000);

  displayColorTriangles();
  delay(2000);
  tft.fillScreen(ILI9341_BLACK);
  displayText("Arvind Patil", 2000);

  drawCircles();
  displayText("Arvind Patil", 2000);

  writeDiagonally();
  displayText("Arvind Patil", 2000);

  tft.fillScreen(ILI9341_BLACK);
  tft.setTextColor(ILI9341_RED);
  tft.setTextSize(3);
  tft.setCursor(10, 50);
  tft.print("by Arvind");
  delay(3000);
  tft.fillScreen(ILI9341_BLACK);
  tft.setTextColor(ILI9341_GREEN);
  tft.setTextSize(3);
  tft.setCursor(10, 50);
  tft.print("by Arvind");
  delay(3000);
  tft.fillScreen(ILI9341_BLACK);
  tft.setTextColor(ILI9341_BLUE);
  tft.setTextSize(3);
  tft.setCursor(10, 50);
  tft.print("by Arvind");
  delay(3000);

  tft.fillScreen(ILI9341_BLACK);
  tft.setTextColor(ILI9341_GREEN);
  tft.setTextSize(2);
  tft.setCursor(10, 220);
  tft.print("HAVE A NICE DAY");
  delay(3000);
}

void displayText(const char* text, int duration) {
  tft.setTextColor(ILI9341_WHITE);
  tft.setTextSize(2);
  tft.setCursor(10, 220);
  tft.print(text);
  delay(duration);
}

void drawColorGradientSquare() {
  int centerX = 120;
  int centerY = 160;
  int initialSize = 150;
  int sizeStep = 25;

  for (int size = initialSize; size > 0; size -= sizeStep) {
    int halfSize = size / 2;

    for (int x = centerX - halfSize; x <= centerX + halfSize; x++) {
      for (int y = centerY - halfSize; y <= centerY + halfSize; y++) {
        int distanceX = abs(x - centerX);
        int distanceY = abs(y - centerY);
        int maxDistance = max(distanceX, distanceY);

        int color = colorRangeMap(maxDistance, 0, halfSize, ILI9341_RED, ILI9341_BLUE);

        tft.drawPixel(x, y, color);
      }
    }
  }
  displayText("Arvind Patil", 2000);
}

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 displayColorSquareGrid() {
  int side = 150;
  int spacing = 30;

  for (int i = 0; i < 10; ++i) {
    uint16_t color = tft.color565(i * 20, i * 10, 255 - i * 15);
    tft.fillRect(10 + i * spacing, 10 + i * spacing, side, side, color);
    side -= 5;

    delay(2500);
  }
  displayText("Arvind Patil", 2000);
}

void displayColorTriangles() {
  int side = 240;
  int spacing = 30;

  for (int i = 0; i < 10; ++i) {
    uint16_t color = tft.color565(i * 20, 255 - i * 10, i * 15);
    int x0 = 80 + i * spacing;
    int y0 = 30 + i * spacing;
    int x1 = 140 + i * spacing;
    int y1 = 70 + i * spacing;
    int x2 = 40 + i * spacing;
    int y2 = 70 + i * spacing;
    tft.fillTriangle(x0, y0, x1, y1, x2, y2, color);
    side -= 5;

    delay(2000);
  }
  displayText("Arvind Patil", 2000);
}

void drawCircles() {
  uint16_t colors[] = {ILI9341_RED, ILI9341_ORANGE, ILI9341_YELLOW, ILI9341_GREEN, ILI9341_BLUE, ILI9341_INVCTR, ILI9341_CASET};
  int x = tft.width() / 2;
  int y = tft.height() / 2;
  int dia = 200;

  for (int i = 0; i < 7; i++) {
    tft.fillCircle(x, y, dia / 2, colors[i]);
    delay(2000);
    dia -= 25;
  }
  displayText("Arvind Patil", 2000);
}

void writeDiagonally() {
  tft.setTextColor(ILI9341_YELLOW);
  tft.setTextSize(3);
  int x = 40;
  int y = 60;
  char text[] = "by Arvind 26 jan24 😀";

  for (int i = 0; i < strlen(text); i++) {
    tft.write(text[i]);
    x += 20;
    y += 20;
    tft.setCursor(x, y);
  }
  displayText("Arvind Patil", 2000);
}