/*
CS   -  15
RST  -   4
DC   -   2
MOSI -  23
SCK  -  18
MISO -  19
SCL  -  22
SDA  -  21
*/

#include <Adafruit_GFX.h>
#include <Adafruit_ILI9341.h>
#include <Adafruit_FT6206.h>
#include <Wire.h>

#define TFT_DC 2
#define TFT_CS 15

Adafruit_FT6206 ctp = Adafruit_FT6206();

Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC);


#define BLACK      0X0000
#define BLUE       0X001F
#define RED        0XF800
#define GREEN      0X07E0
#define DARK_GREEN 0x0BA6
#define CYAN       0X07FF
#define MAGENTA    0XF81F
#define YELLOW     0XFFE0
#define WHITE      0XFFFF


//----------------------------------------Button location at point x and y
int BtnGreenX = 30;
int BtnGreenY = 30;
int BtnRedX = 200;
int BtnRedY = 30;
 

#define LED 33


void DrawButtonGreen(int xp, int yp) 
{
     tft.fillRoundRect(xp, yp, 84, 84, 10, BLACK);
     tft.fillRoundRect(xp+2, yp+2, 80, 80, 10, GREEN);
     tft.setCursor(xp+22, yp+32);
     tft.setTextSize(3);
     tft.setTextColor(WHITE);
     tft.println("ON");
}


void DrawButtonRed(int xp, int yp) 
{
     tft.fillRoundRect(xp, yp, 84, 84, 10, BLACK);
     tft.fillRoundRect(xp+2, yp+2, 80, 80, 10, RED);
     tft.setCursor(xp+18, yp+32);
     tft.setTextSize(3);
     tft.setTextColor(WHITE);
     tft.println("OFF");
}

void DrawButtonGreenPress(int xp, int yp) 
{
     tft.fillRoundRect(xp, yp, 84, 84, 10, BLACK);
}
 

 
void DrawButtonRedPress(int xp, int yp) 
{
     tft.fillRoundRect(xp, yp, 84, 84, 10, BLACK);
}



void setup() 
{
     Serial.begin(115200);

     tft.begin();

     tft.setRotation(3);

     
     if(!ctp.begin(40))
     {
        while(1);
     }

     
  
     tft.fillScreen(BLACK);                          //--> TFT LCD background color

     pinMode(13, OUTPUT);  
   
     pinMode(LED, OUTPUT);

     digitalWrite(LED, HIGH);
   
     DrawButtonGreen(BtnGreenX,BtnGreenY);
     DrawButtonRed(BtnRedX, BtnRedY);
   
     tft.setTextSize(3);
     tft.setTextColor(BLUE, WHITE);
     tft.setCursor(100, 160);
     tft.print("LED OFF");
}

void loop() 
{
     int x;
     int y;

     if(!ctp.touched())
     { 
        delay(10);
        return;
     }

     TS_Point p = ctp.getPoint();

     x = 320 - p.y;        //Value start from High(320) to Low(0). Subtract High from touch point
     y = p.x;  

     //----------------------------------------Condition to detect when the Green Button (Button to turn on LED) is touched and the command
    if (x > BtnGreenX && x < (BtnGreenX+84) && y> BtnGreenY && y < (BtnGreenY+84)) 
    {
      tft.setTextSize(3);
      tft.setTextColor(BLUE, WHITE);
      tft.setCursor(100, 160);
      tft.print("LED ON ");

      digitalWrite(LED, HIGH);
      
      DrawButtonGreenPress(BtnGreenX, BtnGreenY);
      delay(100);
      DrawButtonGreen(BtnGreenX,BtnGreenY);
    }
     

    //----------------------------------------Condition to detect when the Red Button (Button to turn off LED) is touched and the command
    if (x > BtnRedX && x < (BtnRedX+84) && y > BtnRedY && y < (BtnRedY+84)) 
    {
      tft.setTextSize(3);
      tft.setTextColor(BLUE, WHITE);
      tft.setCursor(100, 160);
      tft.print("LED OFF");

      digitalWrite(LED, LOW);
  
      DrawButtonRedPress(BtnRedX, BtnRedY);
      delay(100);
      DrawButtonRed(BtnRedX, BtnRedY);
    }
    
  
}