#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128  // OLED display width, in pixels
#define SCREEN_HEIGHT 64  // OLED display height, in pixels

// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

int potValue = 0;

unsigned long currentTime = 0;
unsigned long saveTime = 0;
unsigned long diffrenceTime = 0;

int xPlay1=10;
int yPlay1=30;
int xPlay1Dir = 1;
int scorPlay=0;

int x1_p2 = SCREEN_WIDTH - 4;
int xBall;
int yBall;
int xNewBall = 7;
int yNewBall = 7;

int xBallDir = 1;
int yBallDir = 1;
void setup() {
  Serial.begin(115200);

  if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {  // Address 0x3D for 128x64
    Serial.println(F("SSD1306 allocation failed"));
    for (;;)
      ;
  }
  delay(2000);
  display.clearDisplay();
 // display.setRotation(2);
  display.setTextSize(1);
  display.setTextColor(WHITE);
  
  display.display();
  int x1_p1 = 4;
}

void loop() {
   display.fillScreen(BLACK);
   drawCourt();
  currentTime = millis();
  diffrenceTime = currentTime - saveTime;

display.setCursor(50, 3);
  // Display static text
   display.println(scorPlay);


  if (diffrenceTime >= 10) {
    saveTime = currentTime;
    xNewBall += xBallDir;
    yNewBall += yBallDir;
  
    
    display.drawPixel(xBall, yBall, BLACK);
    display.drawPixel(xNewBall, yNewBall, WHITE);
   xBall=xNewBall;
   yBall=yNewBall;
  
  }
  if (yNewBall == 63) {
    yBallDir = -yBallDir;

  }

  if (yNewBall == 0) {
    yBallDir = -yBallDir;
  }

  if (xNewBall == 127) {
    xBallDir = -xBallDir;

  }

  if (xNewBall == 0) {
    xBallDir = -xBallDir;
    scorPlay++;

  }

   
  //  display.fillCircle(x++, y++, 1, WHITE);
 
 //xPlay1=xPlay1+1*xPlay1Dir;
 potValue = analogRead(0);
 xPlay1=map(potValue,0,1024,1,48);
  display.drawFastVLine(15,xPlay1,15,WHITE);
  if (xPlay1 == 0) {
    xPlay1Dir = -xPlay1Dir;
  }
   if (xPlay1 == 64-10) {
    xPlay1Dir = -xPlay1Dir;
  }

   if (xNewBall == 15 && yNewBall >=xPlay1 && yNewBall<=xPlay1+15)  {
    xBallDir = -xBallDir;
 
 
  }
  //Serial.println(potValue);
 

  display.display();
}
 
void drawCourt() {
  display.drawRect(0, 0, 128, 64, WHITE);
}