// **********************************************
// *                                            *
// * NAME          : Ahmad Hamzeh               *
// * Program Name  : Lightchaser with DDRB      *
// * Date          : 2023-02-21                 *
// * Desc          : Our first program to       *
// *                 make a light chaser with   *
// *                 patterns and a speaker     *
// *                 with a simplified code     *
// **********************************************
int delayTime     = 100;                 // Pattern Delay is 100ms
int buttonPin     = 6;                   // Pattern Delay is 100ms
int buttonValue   = 0;                   // value of button
int speaker       = 7;                   // pin for the BUZZER
int lightPattern  = 1;                   // begin with pattern 1

void setup() {                         // set up functions (output and input)     
// put your setup code here, to run once:
  pinMode(buttonPin, INPUT_PULLUP);   // setting buttonPin as input pullup
  pinMode(speaker, OUTPUT);           // setting speaker as output
  DDRB = B111111;                     // set up DDRB so they are all outputs
} // end setup()

void loop() { // code under here will loop
  // put your main code here, to run repeatedly:
  buttonValue   =  digitalRead(buttonPin); // check value of button
  
  if (buttonValue == LOW) {           // check button value if pressed
    tone(speaker,500,delayTime);      // buzzer setup
    delay (110);                      // wait 100 ms
    lightPattern = lightPattern + 1;  // change the pattern
    if (lightPattern > 6 ) {          // check if pattern exceeds max numbeer of patterns (6)
      slightPattern = 1;               // setting pattern back to 1
    } // end if()
  }// end if()


  if (lightPattern == 1){             // check to see if first pattern should run
    PORTB = B000100;                  // PORT B TO LED OFF OFF ON
    delay(delayTime);                 // wait 100 ms
    PORTB = B001100;                  // PORT B TO LED OFF ON ON
    delay(delayTime);                 // wait 100 ms
    PORTB = B011100;                  // PORT B TO LED ON ON ON
    delay(delayTime);                 // wait 100 ms
  } // end if()
  else if (lightPattern == 2){        // check to see if second pattern should run
    PORTB = B011000;                    // PORT B TO LED ON ON OFF
    delay(delayTime);                 // wait 100 ms
    PORTB = B010100;                  // PORT B TO LED ON OFF ON
    delay(delayTime);                 // wait 100 ms
    PORTB = B001100;                  // PORT B TO LED OFF ON ON
    delay(delayTime);                 // wait 100 ms
  } // end else if()
  else if (lightPattern == 3){        // check to see if third pattern should run
    PORTB = B010000;                    // PORT B TO LED ON OFF OFF
    delay(delayTime);                 // wait 100 ms
    PORTB = B001000;                  // PORT B TO LED OFF ON OFF
    delay(delayTime);                 // wait 100 ms
    PORTB = B000100;                  // PORT B TO OFF OFF ON
    delay(delayTime);                 // wait 100 ms
  } // end else if()
  else if (lightPattern == 4){        // check to see if fourth pattern should run
    PORTB = B010000;                    // PORT B TO LED ON OFF OFF
    delay(delayTime);                 // wait 100 ms
    PORTB = B011000;                  // PORT B TO LED ON ON OFF
    delay(delayTime);                 // wait 100 ms
    PORTB = B011100;                  // PORT B TO LED ON ON ON
    delay(delayTime);                 // wait 100 ms
  } // end else if()
  else if (lightPattern == 5){        // check to see if fifth pattern should run
    PORTB = B001100;                    // PORT B TO LED OFF ON ON
    delay(delayTime);                 // wait 100 ms
    PORTB = B010100;                  // PORT B TO LED ON OFF ON
    delay(delayTime);                 // wait 100 ms
    PORTB = B011000;                  // PORT B TO LED ON ON OFF
    delay(delayTime);                 // wait 100 ms
  } // end else if()
  else if (lightPattern == 6){        // check to see if sixth pattern should run
    PORTB = B000100;                    // PORT B TO LED OFF OFF ON
    delay(delayTime);                 // wait 100 ms
    PORTB = B001000;                  // PORT B TO LED OFF ON OFF
    delay(delayTime);                 // wait 100 ms
    PORTB = B010000;                  // PORT B TO LED ON OFF OFF
    delay(delayTime);                 // wait 100 ms
  } // end else if()
} // end loop()