/* 
*  Programmer: R. Jordan Kreindler
*  Bouncing Ball Animation
*  August 8, 2020
*/

#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2); // Set I2C address to 0x27

byte ball1[] = {
  B01110,
  B01110,
  B00000,
  B00000,
  B00000,
  B00000,
  B00000,
  B00000
};

byte ball2[] = {
  B00000,
  B00000,
  B00000,
  B00000,
  B00000,
  B00000,
  B01110,
  B01110
};

byte nothing[] = {
  B00000,
  B00000,
  B00000,
  B00000,
  B00000,
  B00000,
  B00000,
  B00000
};

int delay1 = 250;

void setup() {
  lcd.init();
  lcd.backlight();
  lcd.createChar(0, ball1);
  lcd.createChar(1, ball2);
  lcd.createChar(2, nothing);
  lcd.home();
}

void loop() {
  lcd.setCursor(0, 0);
  lcd.print("  Bouncing Ball");  // Print "Bouncing Ball" on first line of LCD
  for(int i = 0; i <= 15; i++) { 
    lcd.setCursor(i, 1);     // Set cursor to second line of LCD
    if(i%2==0)lcd.write(0);  // Print ball1 if comparison is even
    if(i%2==!0)lcd.write(1); // Print ball2 if comparison is odd 
    delay(delay1);           // Delay long enough to see ball1 and ball2
    
    lcd.setCursor(i, 1);     // Set cursor to second line of LCD
    lcd.write(2);            // Erase ball1 or ball2
  }
  lcd.clear();
 }