Air Football

// AIR FOOTBALL BY SILAS HANSEN
// CREATIVE DESIGN & TECHNOLOGY
// SAXION UNIVERSITY
// 30.01.2022

const int buttonPin = 8;                               // Integer to indicated which pin the button is connected to.
int buttonState = 0;                                   // Integer to store data from the button.
int scoreBlue = 0;                                     // Variable to count the score for the blue team.
int scoreRed = 0;                                      // Variable to count the score for the red team.
boolean addScoreBlue = false;                          // Boolean to trigger animation, blue lights and increase in score for the blue team.
boolean addScoreRed = false;                           // Boolean to trigger animation, red lights and increase in score for the red team.
int lineTrackerTriggeredBlue = 0;                      // Variable to display animation and blue light show first and then add the score afterwards.
int lineTrackerTriggeredRed = 0;                       // Variable to display animation and red light show first and then add the score afterwards.
#include <Adafruit_NeoPixel.h>                         // Including Adafruit library to control the NeoPixel.
int lightDelay = 10;                                   // Integer for length of delay in light shows. 
const int Pin = 7;                                     // Varible for the pin where the NeoPixel strip is connected to
const int NumberOfPixels = 56;                         // Variable for the number of pixels in the NeoPixel strip
Adafruit_NeoPixel pixels(NumberOfPixels, Pin, NEO_GRB + NEO_KHZ800); //The type of NeoPixel is defined.

void setup() {
  Serial.begin(9600);                                  // Initializes the serial monitor and Nextion display.
  attachInterrupt(0,addscoreblue,FALLING);             // Calls the function "addscoreblue" when signal from blue's line tracker is triggered.
  attachInterrupt(1,addscorered,FALLING);              // Calls the function "addscorered" when signal from red's line tracker is triggered.
  pinMode(buttonPin, INPUT_PULLUP);                    // Defining the button as an input.
  pixels.begin();                                      // Initialises the NeoPixel strip.
}

void loop() {
  for(int i=0; i<28; i++) {                            // For loop to manage one half of the LED strip.
    pixels.setPixelColor(i, pixels.Color(0, 0, 255));  // Half of the LED's is set to blue.
    pixels.show();}                                    // Send the updated pixel colors to the hardware.
    
  for(int i=28; i<NumberOfPixels; i++) {               // For loop to manage the other half of the LED strip.
    pixels.setPixelColor(i, pixels.Color(255, 0, 0));  // Sets the other half of LED's to red. 
    pixels.show();}                                    // Send the updated pixel colors to the hardware.
    
  if (addScoreBlue==true){                             // If the blue team scores, the following code is executed.
    lineTrackerTriggeredBlue++;                         
      if(lineTrackerTriggeredBlue == 1){               // When the puck covers the line tracker, the animation and blue light show are displayed.
        dynamicPixelsBlue();                           // Function to display the blue light show is called.
        Serial.print("page 1");                        // The page number is send to the Nextion display.
        Serial.write(0xff);                            // When something is send to a Nextion display, these three lines need to be called.
        Serial.write(0xff);
        Serial.write(0xff);
        delay(5000);                                   // Delay to let the animation play for 5 secs.
        Serial.print("page 0");                        // The page number is send to the Nextion display to display the scoreboard again.
        Serial.write(0xff);
        Serial.write(0xff);
        Serial.write(0xff);}
      if(lineTrackerTriggeredBlue == 2){               // When is removed from the goal, the score is added in the Nextion display.
        scoreBlue = scoreBlue + 1;
        lineTrackerTriggeredBlue = 0;}                 // Resets the value, so code above can be repeated if blue team scores again.
  }
  addScoreBlue = false;                                // Sets the boolean to false again, so code above can be repeated if blue team scores again.
  Serial.print("n0.val=");                             // Defines that the following variable is a number.
  Serial.print(scoreBlue);                             // The variable of the blue team's score is send to the display.
  Serial.write(0xff);
  Serial.write(0xff);
  Serial.write(0xff);
  
  if (addScoreRed==true){                              // If the red team scores, the following code is executed.
    lineTrackerTriggeredRed++;
      if(lineTrackerTriggeredRed == 1){                // When the puck covers the line tracker, the animation and red light show are displayed.
        dynamicPixelsRed();                            // Function to display the red light show is called.
        Serial.print("page 1");                        // The page number is send to the Nextion display.
        Serial.write(0xff);
        Serial.write(0xff);
        Serial.write(0xff);
        delay(5000);                                   // Delay to let the animation play for 5 secs.
        Serial.print("page 0");                        // The page number is send to the Nextion display to display the scoreboard again.
        Serial.write(0xff);
        Serial.write(0xff);
        Serial.write(0xff);}  
      if(lineTrackerTriggeredRed == 2){                // When is removed from the goal, the score is added in the Nextion display.
        scoreRed = scoreRed + 1;
        lineTrackerTriggeredRed = 0;}                  // Resets the value, so code above can be repeated if red team scores again.
  }
  addScoreRed = false;                                 // Sets the boolean to false again, so code above can be repeated if red team scores again.
  Serial.print("n1.val=");                             // Defines that the following variable is a number.
  Serial.print(scoreRed);                              // The variable of the red team's score is send to the display.
  Serial.write(0xff);
  Serial.write(0xff);
  Serial.write(0xff);
  
  buttonState = digitalRead(buttonPin);                // The Arduino recieves data from the button and sets it as buttonState. 
  resetScore();                                        // Calls a function that detect if score needs to be resetted.
  WhoWins();                                           // Calls a function to detect if one of the players won the game.
}

void addscoreblue(){                                   // Function that is called when blue team scores.
  addScoreBlue = true;}                                // Sets boolean to true, so statement in loop is triggered.

void addscorered(){                                    // Function that is called when red team scores.
  addScoreRed = true;}                                 // Sets boolean to true, so statement in loop is triggered.

void resetScore(){                                     // Function to reset the score if the button is pressed.
 if (buttonState == LOW) {
  scoreRed = 0;
  scoreBlue = 0;}
}

void resetScoreAfterWin(){                             // Function to reset score when one of the players won the game. 
  scoreRed = 0;
  scoreBlue = 0;}

void dynamicPixelsBlue() {                             // Function to make a light show when blue team scores.
  pixels.clear();                                      // Turns off all LED's, so it's ready for the following light pattern.
  for(int i=0; i<NumberOfPixels; i++) {                // For loop to make wave effect with 10 pixels.
    pixels.setPixelColor(i, pixels.Color(0, 0, 255));  // Pixel i is set to blue.
    pixels.setPixelColor(i-10, pixels.Color(0, 0, 0)); // The pixel that is 10 behind of pixel i is turned off.
    pixels.show();                                     // Send the updated pixel colors to the hardware.
    delay(lightDelay);}                                // Pause before next pass through loop
    
  for(int i=56; i>0; i--) {                            // For loop to make wave effect with 10 pixels but in the other direction than above.
    pixels.setPixelColor(i, pixels.Color(0, 0, 255));  // Pixel i is set to blue.
    pixels.setPixelColor(i+10, pixels.Color(0, 0, 0)); // The pixel that is 10 infront of pixel i is turned off.
    pixels.show();                                     // Send the updated pixel colors to the hardware.
    delay(lightDelay);}                                // Pause before next pass through loop
    
  for(int i=0; i<NumberOfPixels; i++){                 // For loop to turn on all pixels.
    pixels.setPixelColor(i, pixels.Color(0, 0, 255));} // Sets all pixels to blue. 
    pixels.show();                                     // Send the updated pixel colors to the hardware.
    delay(lightDelay+200);                             // Keeps all LED's on for 210 millisecs. 
    
  for(int i=0; i<NumberOfPixels; i++){                 // For loop to turn off all pixels.
    pixels.setPixelColor(i, pixels.Color(0, 0, 0));}   // Sets all pixels to no color (off).
    pixels.show();                                     // Send the updated pixel colors to the hardware.
    delay(lightDelay+200);                             // Keeps all LED's off for 210 millisecs.
    
  for(int i=0; i<NumberOfPixels; i++){                 // For loop to turn on all pixels.
    pixels.setPixelColor(i, pixels.Color(0, 0, 255));} // Sets all pixels to blue.
    pixels.show();                                     // Send the updated pixel colors to the hardware.
    delay(lightDelay+200);                             // Keeps all LED's on for 210 millisecs.
    
  for(int i=0; i<NumberOfPixels; i++){                 // For loop to turn off all pixels.
    pixels.setPixelColor(i, pixels.Color(0, 0, 0));}   // Sets all pixels to no color (off).
    pixels.show();                                     // Send the updated pixel colors to the hardware.
    delay(lightDelay+200);                             // Keeps all LED's off for 210 millisecs.
}

void dynamicPixelsRed() {                              // Exactly same function and structure as the blue light show, but the color is instead red.
  pixels.clear(); 
  for(int i=0; i<NumberOfPixels; i++) { 
    pixels.setPixelColor(i, pixels.Color(255, 0, 0));
    pixels.setPixelColor(i-10, pixels.Color(0, 0, 0)); 
    pixels.show();   
    delay(lightDelay);} 
    
  for(int i=56; i>0; i--) { 
    pixels.setPixelColor(i, pixels.Color(255, 0, 0));
    pixels.setPixelColor(i+10, pixels.Color(0, 0, 0));
    pixels.show();   
    delay(lightDelay);} 
    
  for(int i=0; i<NumberOfPixels; i++){
    pixels.setPixelColor(i, pixels.Color(255, 0, 0));}
    pixels.show();   
    delay(lightDelay+200);
    
  for(int i=0; i<NumberOfPixels; i++){
    pixels.setPixelColor(i, pixels.Color(0, 0, 0));}
    pixels.show();   
    delay(lightDelay+200);
    
  for(int i=0; i<NumberOfPixels; i++){
    pixels.setPixelColor(i, pixels.Color(255, 0, 0));} 
    pixels.show();   
    delay(lightDelay+200);
    
  for(int i=0; i<NumberOfPixels; i++){
    pixels.setPixelColor(i, pixels.Color(0, 0, 0));}
    pixels.show();   
    delay(lightDelay+200);
}

void WhoWins(){                                        // Function to display winner animation.
  if(scoreBlue==3){                                    // If blue team scores three goals, the blue winner animation is displayed.
    resetScoreAfterWin();                              // Calls function to reset score.
    Serial.print("page 2");                            // The page number is send to the Nextion display.
    Serial.write(0xff);
    Serial.write(0xff);
    Serial.write(0xff);
    delay(5000);                                       // Delay to let the animation play for 5 secs.
    Serial.print("page 0");                            // The page number is send to the Nextion display to display the scoreboard again.
    Serial.write(0xff);
    Serial.write(0xff);
    Serial.write(0xff);}
    
  if(scoreRed==3){                                     // If red team scores three goals, the blue winner animation is displayed.
    resetScoreAfterWin();
    Serial.print("page 3");                            // The page number is send to the Nextion display.
    Serial.write(0xff);
    Serial.write(0xff);
    Serial.write(0xff);
    delay(5000);                                       // Delay to let the animation play for 5 secs.
    Serial.print("page 0");                            // The page number is send to the Nextion display to display the scoreboard again.
    Serial.write(0xff);
    Serial.write(0xff);
    Serial.write(0xff);}
}