/**
  ESP32s3 adaptation by Tyeth Gundry of Arduino version of
  First demo for FT6206 Capactive Touch Screen on Wokwi. Enjoy!

  https://wokwi.com/arduino/projects/311598148845830720
 */

/***************************************************
  This is our touchscreen painting example for the Adafruit ILI9341
  captouch shield
  ----> http://www.adafruit.com/products/1947

  Check out the links above for our tutorials and wiring diagrams

  Adafruit invests time and resources providing this open source code,
  please support Adafruit and open-source hardware by purchasing
  products from Adafruit!

  Written by Limor Fried/Ladyada for Adafruit Industries.
  MIT license, all text above must be included in any redistribution
 ****************************************************/


#include <Adafruit_GFX.h>    // Core graphics library
#include <SPI.h>       // this is needed for display
#include <Adafruit_ILI9341.h>
#include <Arduino.h>      // this is needed for FT6206
#include <Adafruit_FT6206.h>
#include<Fonts/FreeSansOblique12pt7b.h>
#include "SdFat.h"

#define SPI_SPEED SD_SCK_MHZ(4)
#define CS_PIN 10

SdFat sd;
// The FT6206 uses hardware I2C (SCL/SDA)
Adafruit_FT6206 ctp = Adafruit_FT6206();

// // The display also uses hardware SPI, plus #9 & #10
// #define TFT_CS 10
// #define TFT_DC 9
#define TFT_DC 2
#define TFT_CS 15
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC);

// Size of the color selection boxes and the paintbrush size
#define BOXSIZE 40
#define PENRADIUS 1
int oldcolor, currentcolor;

void setup(void) {
  //while (!Serial);     // used for leonardo debugging

  Serial.begin(115200);
  Serial.println(F("Cap Touch Paint!"));
  
  Wire.setPins(10, 8); // redefine first I2C port to be on pins 10/8
  tft.begin();
  tft.fillScreen(ILI9341_WHITE);
  if (! ctp.begin(40)) {  // pass in 'sensitivity' coefficient
    Serial.println("Couldn't start FT6206 touchscreen controller");
    while (1);
  }
  tft.setTextColor(ILI9341_BLACK);
  tft.setTextSize(2);
  tft.println(" ");
  tft.println(" ");
  tft.println(" ");
  tft.println(" ");
   tft.println(" ");
  tft.println(" ");
  tft.println(" ");
  tft.println(" ");
  tft.println("  SLATEBOOK GENESIS");
  Serial.println("Capacitive touchscreen started");
  delay(3000);
  tft.fillScreen(ILI9341_WHITE);
    Serial.begin(115200);
  if (!sd.begin(CS_PIN, SPI_SPEED)) {
    if (sd.card()->errorCode(e)) {
      Serial.println(e);
    } else if (sd.vol()->fatType() == 0) {
      Serial.println("Can't find a valid FAT16/FAT32 partition.");
    } else {
      Serial.println("Can't determine error type");
    }
    return;
  }

  Serial.println("Files on card:");
  Serial.println("   Size    Name");

  sd.ls(LS_R | LS_SIZE);

}

void loop() {
  // Wait for a touch
  if (! ctp.touched()) {
    return;
  }
  
  tft.drawLine(50, 320, 50, 0,ILI9341_BLACK);
  for(int num_line=1;num_line<25;num_line++){
   tft.drawLine(0, 320-num_line*16, 240, 320-num_line*16,ILI9341_BLACK);
   
  }  
  // tft.drawLine(0, 140, 240, 140,ILI9341_BLACK);
   TS_Point p = ctp.getPoint();
  p.x = map(p.x, 0, 240, 240, 0);
  p.y = map(p.y, 0, 320, 320, 0);
  tft.drawRect(10, 10, 30, 320,ILI9341_RED);
  
  //}
 
  Serial.print("("); Serial.print(p.x);
  Serial.print(", "); Serial.print(p.y);
  Serial.println(")");
  if (((p.y-PENRADIUS) > BOXSIZE) && ((p.y+PENRADIUS) < tft.height())) {
    tft.fillCircle(p.x, p.y, PENRADIUS, currentcolor);
  }
}


//void drawLine(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t color);


////////////////////////////////////////////////////////////////////////////////////




// /*
//   ESP32-S3 + ILI9341 TFT LCD Example

//   https://wokwi.com/projects/343784047735997012
// */

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

// #define TFT_DC 2
// #define TFT_CS 15
// Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC);

// void setup() {
//   Serial.begin(115200); 
//   Serial.println("Welcome to Wokwi, ESP32-S3");
//   Wire.begin(10,8);
//   tft.begin();

//   tft.setCursor(44, 120);
//   tft.setTextColor(ILI9341_RED);
//   tft.setTextSize(3);
//   tft.println("ESP32-S3");
// }

// const uint32_t colors[] = {
//   ILI9341_GREEN,
//   ILI9341_CYAN,
//   ILI9341_MAGENTA,
//   ILI9341_YELLOW,
// };
// uint8_t colorIndex = 0;

// void loop() {
//   tft.setTextSize(2);
//   tft.setCursor(26, 164);
//   tft.setTextColor(colors[colorIndex++ % 4]);
//   tft.println("Welcome to Wokwi!");
//   delay(250);
// }