#include <TFT_eSPI.h>
#include "image.h"

//Pin configuration
#define BUZZER_PIN 26//speaker
#define SELECTOR_PIN 27//push button
// setting PWM properties
#define backlightChannel 0
#define buzzerChannel 2
#define array_length(x) (sizeof(x) / sizeof(x[0])) //macro to calculate array length


//DISPLAY
TFT_eSPI tft = TFT_eSPI();
//Sprites
TFT_eSprite car = TFT_eSprite(&tft);
TFT_eSprite bk = TFT_eSprite(&tft);
TFT_eSprite pole = TFT_eSprite(&tft);
TFT_eSprite fence = TFT_eSprite(&tft);


void StarField() {//start field effect
#define BK_HEIGHT 80
#define BK_WIDTH 235
  uint8_t cur_x = 68;
  uint8_t cur_y = 15;
  uint8_t dash_x = 20;
  int16_t tag_x = 235;
  int16_t fence_x = 0;
  uint8_t ani_speed = 2;

//create spirtes
  bk.createSprite(BK_WIDTH,BK_HEIGHT);

  car.createSprite(CAR_WIDTH,CAR_HEIGHT);//image size 114x50
  car.setSwapBytes(true);
  car.pushImage(0,0,CAR_WIDTH,CAR_HEIGHT,futurecar);//image size 114x50

  pole.createSprite(POLE_WIDTH,POLE_HEIGHT);
  pole.setSwapBytes(true);
  pole.pushImage(0,0,POLE_WIDTH,POLE_HEIGHT,pole1);

  fence.createSprite(FENCE_WIDTH,FENCE_HEIGHT);
  fence.setSwapBytes(true);
  fence.pushImage(0,0,FENCE_WIDTH,FENCE_HEIGHT,fence1);
//-------------------------------
  tft.fillScreen(TFT_BLACK);//clear screen  
//draw QRCode
  tft.drawBitmap(0, 159, qrcode, 80, 80, TFT_WHITE);
//draw text
  tft.setTextColor(TFT_WHITE);
  tft.drawString(">MAP/ENG LOAD/ECT/EOT/TFT/ENG SPD/PCM Volt",0,40,2);
  tft.drawString(">Warning, Automatic Dim/OnOff/O็verheat Shutdown",0,60,2);
  tft.drawString(">Read DTC Code & Clear MIL Status",0,80,2);
  tft.drawString("* FW-\"VaandCobOBD2Gauge.bin\" * Image-\"mypic.jpg\"",0,100,2);
  tft.drawString("* Facebook : www.facebook.com/vaandcob",0,120,2);
  tft.setTextColor(TFT_YELLOW);
  tft.drawString("  [ Manual ] ----------------[ Press button to exit ]",0,140,2);
  tft.setTextColor(TFT_CYAN); 
  //String txt = "[ "+serial_no+" ] BUILD : "+compile_date;
  //tft.drawString(txt,0,0,2);
  //get VIN
  //getPID("ATE0");//force echo off
  //txt = "VIN :  " + getVIN(getPID("0902"));
  //tft.drawString(txt,0,20,2);

 bk.setTextColor(TFT_BLACK,TFT_ORANGE);

  //loop drawing
  while (digitalRead(SELECTOR_PIN) == HIGH) {//exit if press button
 
   //draw car driving animation
  bk.fillSprite(0x4228);//draw road
  bk.fillRect(0,0,235,16,TFT_LIGHTGREY);
  bk.fillRect(0,16,235,3,0x8430);
  //draw dash line
  for(int16_t i = 0; i < 5; i++) {
                     //speed     //space //posY //length
  //  bk.drawFastHLine(dash_x         +(40 * i), 20,10,TFT_WHITE);//draw dash line length 10
    bk.drawFastHLine((dash_x-20)*1.5+(60 * i),45,15,TFT_WHITE);//length 15
   // bk.drawFastHLine((dash_x-40)*2.0+(80 * i),79,20,TFT_WHITE);//length 15
  }
  dash_x = dash_x - ani_speed;
  if (dash_x <= 0 ) dash_x = 40;

//draw billboard

  tag_x = tag_x - ani_speed;
  if (tag_x <= -80) tag_x = 235;
  //  bk.setTextColor(random(0xffff));
   bk.drawString("< Thank You >",tag_x,0,2);//draw billboard

  //draw car
  int8_t move = random(-1,2);
  cur_x = cur_x + move;
  move = random(-1,2);
  cur_y = cur_y + move;
  if (cur_x > 235-CAR_WIDTH) cur_x = 235-CAR_WIDTH;
  if (cur_x < 1) cur_x = 1;
  if (cur_y < 1) cur_y = 1;
  if (cur_y > 79-CAR_HEIGHT) cur_y = 79-CAR_HEIGHT;
  car.pushToSprite(&bk,cur_x,cur_y,TFT_BLACK);//put car into bk, white color as transparent

//draw fence
   for(int i=0;i<8;i++)
     fence.pushToSprite(&bk,fence_x*2+(FENCE_WIDTH*i),80-FENCE_HEIGHT,TFT_BLACK);

     fence_x = fence_x - ani_speed;
  if (fence_x <= -FENCE_WIDTH + ani_speed) fence_x = 0;
 //draw pole 
  pole.pushToSprite(&bk,tag_x*2,80-POLE_HEIGHT,TFT_BLACK);//draw bush
  bk.pushSprite(85,159);//show background sprite

 }
 //remove sprites
  car.deleteSprite();
  bk.deleteSprite();
  pole.deleteSprite();
  fence.deleteSprite();
}//task star field
//----------------------------



// the setup function runs once when you press reset or power the board
void setup() {
  //pin configuration
  pinMode(BUZZER_PIN,OUTPUT);//speaker
  pinMode(SELECTOR_PIN,INPUT_PULLUP);//button

  //pwm setup
  ledcSetup(buzzerChannel, 1500, 10);//buzzer 10 bit
  ledcSetup(backlightChannel, 12000, 8);//backlight 8 bit
  ledcAttachPin(BUZZER_PIN, buzzerChannel);//attach buzzer

  Serial.begin(115200);
  tft.init();
  tft.setRotation(1);
  tft.fillScreen(TFT_BLACK);


}
//----------------------------
void loop()
{

      StarField();//play star field animation  
    
}