/*
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**  Name: Jerrod Jeyakrishna                                                                       **
**  Project Name: LaserChaser.ino                                                                  **
**  Date:2024-09-17                                                                                **
**  Description:This Arduino code controls three LEDs (red, yellow, and green) using a button.     **
**  Each time the button is pressed, the LEDs change to one of six different patterns. The code    **
**  uses a variable to keep track of which pattern is currently shown and updates the LED states   **
**  accordingly. Each pattern is displayed for 100 milliseconds before moving to the next. The     **
**  patterns are set up so that the LEDs turn on and off in specific sequences to create different **
**  light effects.                                                                                 **
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*/

int redLed        = 13;                     //define red light pin
int yellowLed     = 12;                     //define yellow light pin
int greenLed      = 11;                     //define green light pin
int buttonPin     = 7;                      //define button pin
int patternNumber = 0;                      //define pattern number
int speedValue    = 100;                    //set delay value to 100ms

void setup() {

  DDRB = B111000;
  pinMode(buttonPin,  INPUT_PULLUP);
  Serial.begin(9600);

}//setup pin locations

int myPatternArray [6] [3] = {  { 8, 24, 56},
                                {48, 40, 24},
                                {32, 16, 8},
                                {32, 48, 56},
                                {24, 40, 48}, 
                                { 8, 16, 32}
                             };//end array 
                             
void loop() {

  if ( digitalRead(buttonPin) == LOW) {     // check if button was pressed
    patternNumber++;                        // if so, speed up blinking

    if (patternNumber > 5) {                // if numbered pattern exceeds 5..
      patternNumber = 0;                    // ... patternNumber goes back to 0 (start)
    }//end if()
  }//end if()

  for (int x = 0; x<3; x++) {
    PORTB = myPatternArray [patternNumber] [x];
    delay(speedValue);
  }//end for

  Serial.println(patternNumber);            //prints pattern number
}//end loop()