#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(uint16_t backgroundColor) {
    tft.fillScreen(backgroundColor);
}

void animate1() {
    int x = 160;
    int y = 50;
    int size = 20;
    uint16_t color = tft.color565(255, 255, 0);

    clearScreen(ILI9341_BLACK);
    tft.fillTriangle(x, y, x - size, y + size, x + size, y + size, color);
    delay(2000);
}

void animate2() {
    int centerX = tft.width() / 2;
    int centerY = tft.height() / 2;
    int radius = tft.width() / 2;
    int colorStep = 5;

    while (radius > 0) {
        clearScreen(ILI9341_BLACK);
        for (int i = 0; i < 360; i++) {
            int x = centerX + radius * cos(i * PI / 180.0);
            int y = centerY + radius * sin(i * PI / 180.0);
            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.drawPixel(x, y, color);
        }
        radius -= 5;
        delay(50);
    }
}

void animate3() {
    int x = 0;
    int y = 0;
    int size = 15;
    int colorStep = 10;

    clearScreen(ILI9341_BLACK);
    for (int i = 0; i < tft.width(); i += size) {
        for (int j = 0; j < tft.height(); j += size) {
            uint16_t color = tft.color565(0, x % 256, y % 256);
            tft.fillRect(i, j, size, size, color);
            x += colorStep;
            y += colorStep;
        }
    }
    delay(2000);
}

void animate4() {
    int x = 0;
    int y = 0;
    int size = 10;
    int colorStep = 5;

    clearScreen(ILI9341_BLACK);
    for (int i = 0; i < tft.width(); i += size) {
        for (int j = 0; j < tft.height(); j += size) {
            uint16_t color = tft.color565(x % 256, y % 256, 0);
            tft.drawPixel(i, j, color);
            x += colorStep;
            y += colorStep;
        }
    }
    delay(2000);
}

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

    animate1();
    animate2();
    animate3();
    animate4();
}

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