class ElPipe {
  float x,y;
  int type;
  float bottomY;
  float topY;
  float rightX;
  float leftX;
  float colorTimer;
  float lastSoundTriggerTime = 0;
  float newBallTimer;
  float dirTimer;
  int r; //red fill value
  int g; //green fill value
  int blu; //blue fill value
  boolean ballEnteredPipe;
  boolean ballExitedPipe;
  boolean makeNewBall;
  boolean pipeDrag = false;

  //constructor
  ElPipe(float xpos, float ypos, int typeOfPipe){
    x = xpos;
    y = ypos;
    type = typeOfPipe;
  }

  void doEl1PipeActions(Ball b){
    didBallEnterPipe(b);
    didBallExitPipe(b);
    if(ballInPipe(b) && ballInRange(b)){
      changeDir(b);
      playSound(b);     
      lightUp();      
    }
    else if(ballInRange(b) && (ballInPipe(b) == false)){
      lightUpRed();
      removeBall(b);      
    }   
  }

  void doEl2PipeActions(Ball b){
    didBallEnterEl2Pipe(b);
    didBallExitEl2Pipe(b);
    if(ballInPipe(b) && ballInRange(b)){
      changeDir(b);
      playSound(b);     
      lightUp();      
    }
    else if(ballInRange(b) && (ballInPipe(b) == false)){
      removeBall(b);
      lightUpRed();
    }   
  }

  void doEl3PipeActions(Ball b){
    didBallEnterEl3Pipe(b);
    didBallExitEl3Pipe(b);
    if(ballInPipe(b) && ballInRange(b)){
      changeDir(b);
      playSound(b);   
      lightUp();      
    }
    else if(ballInRange(b) && (ballInPipe(b) == false)){
      removeBall(b);
      lightUpRed();
    }   
  }

  void doEl4PipeActions(Ball b){
    didBallEnterEl4Pipe(b);
    didBallExitEl4Pipe(b);
    if(ballInPipe(b) && ballInRange(b)){
      changeDir(b);
      playSound(b);   
      lightUp();      
    }
    else if(ballInRange(b) && (ballInPipe(b) == false)){
      removeBall(b);
      lightUpRed();
    }   
  }

  void doVertPipeActions(Ball b){
    didBallEnterVertPipe(b);
    didBallExitVertPipe(b);
    if(ballInPipe(b) && ballInRange(b)){
      changeDir(b);
      playSound(b); 
      lightUp();      
    }
    else if(ballInVertRange(b) && (ballInPipe(b) == false)){
      removeBall(b);
      lightUpRed();
    }   
  }

  void doHorzPipeActions(Ball b){
    didBallEnterHorzPipe(b);
    didBallExitHorzPipe(b);
    if(ballInPipe(b) && ballInRange(b)){
      changeDir(b);
      playSound(b);    
      lightUp();      
    }
    else if(ballInHorzRange(b) && (ballInPipe(b) == false)){
      removeBall(b);
      lightUpRed();
    }   
  }

  void doTee1PipeActions(Ball b){
    didBallEnterTee1Pipe(b);
    didBallExitTee1Pipe(b);
    if(ballInPipe(b) && ballInRange(b)){    
      lightUp();
      makeNewBalls();  
      if(b.direction == D){
        changeDir(b);
      }
      playSound(b); 
    }
    else if(ballInTee1Range(b) && (ballInPipe(b) == false) && (millis() - newBallTimer > 1000)){
      removeBall(b);
      lightUpRed();
    }
    else {
      makeNewBall = false;
    }
  }

  void doTee2PipeActions(Ball b){
    didBallEnterTee2Pipe(b);
    didBallExitTee2Pipe(b);
    if(ballInPipe(b) && ballInRange(b)){    
      lightUp();
      makeNewBalls();  
      if(b.direction == U){
        changeDir(b);
      }
      playSound(b); 
    }
    else if(ballInTee2Range(b) && (ballInPipe(b) == false) && (millis() - newBallTimer > 1000)){
      removeBall(b);
      lightUpRed();
    }
    else {
      makeNewBall = false;
    }
  }

  void doDiag1PipeActions(Ball b){
    didBallEnterDiag1Pipe(b);
    didBallExitDiag1Pipe(b);
    if(ballInPipe(b) && ballInDiag1Range(b)){
      changeDir(b);     
      playSound(b);
      lightUp();      
    }
    else if(ballInDiag1Range(b) && (ballInPipe(b) == false)){
      removeBall(b);
      lightUpRed();
    }   
  }

  void doDiag2PipeActions(Ball b){
    didBallEnterDiag2Pipe(b);
    didBallExitDiag2Pipe(b);
    if(ballInPipe(b) && ballInDiag2Range(b)){
      changeDir(b);     
      playSound(b);    
      lightUp();      
    }
    else if(ballInDiag2Range(b) && (ballInPipe(b) == false)){
      removeBall(b);
      lightUpRed();
    }   
  }

  void displayEl1(){
    noStroke();
    if ((millis() - colorTimer) > FLASH && (pipeDrag != true)){//resets the color of the pipe after a flash of another color
      r = 34;
      g = 48;
      blu = 188;
    }
    fill(r,g,blu);
    makeEl1Shape();
  }

  void displayEl2(){
    noStroke();
    if ((millis() - colorTimer) > FLASH && (pipeDrag != true)){//resets the color of the pipe after a flash of another color
      r = 34;
      g = 48;
      blu = 188;
    }   
    fill(r,g,blu);
    makeEl2Shape();
  }

  void displayEl3(){
    noStroke();
    if ((millis() - colorTimer) > FLASH && (pipeDrag != true)){//resets the color of the pipe after a flash of another color
      r = 34;
      g = 48;
      blu = 188;
    }   
    fill(r,g,blu);
    makeEl3Shape();
  }

  void displayEl4(){
    noStroke();
    if ((millis() - colorTimer) > FLASH && (pipeDrag != true)){//resets the color of the pipe after a flash of another color
      r = 34;
      g = 48;
      blu = 188;
    }   
    fill(r,g,blu);
    makeEl4Shape();
  }

  void displayVert(){
    noStroke();
    if ((millis() - colorTimer) > FLASH && (pipeDrag != true)){//resets the color of the pipe after a flash of another color
      r = 34;
      g = 48;
      blu = 188;
    }   
    fill(r,g,blu);
    makeVertShape();
  }

  void displayHorz(){
    noStroke();
    if ((millis() - colorTimer) > FLASH && (pipeDrag != true)){//resets the color of the pipe after a flash of another color
      r = 34;
      g = 48;
      blu = 188;
    }   
    fill(r,g,blu);
    makeHorzShape();
  }

  void displayTee1(){
    noStroke();
    if ((millis() - colorTimer) > FLASH && (pipeDrag != true)){//resets the color of the pipe after a flash of another color
      r = 34;
      g = 48;
      blu = 188;
    }   
    fill(r,g,blu);
    makeTee1Shape();
  }

  void displayTee2(){
    noStroke();
    if ((millis() - colorTimer) > FLASH && (pipeDrag != true)){//resets the color of the pipe after a flash of another color
      r = 34;
      g = 48;
      blu = 188;
    }   
    fill(r,g,blu);
    makeTee2Shape();
  }

  void displayDiag1(){
    noStroke();
    if ((millis() - colorTimer) > FLASH && (pipeDrag != true)){//resets the color of the pipe after a flash of another color
      r = 34;
      g = 48;
      blu = 188;
    }   
    fill(r,g,blu);
    makeDiag1Shape();
  }

  void displayDiag2(){
    noStroke();
    if ((millis() - colorTimer) > FLASH && (pipeDrag != true)){//resets the color of the pipe after a flash of another color
      r = 34;
      g = 48;
      blu = 188;
    }   
    fill(r,g,blu);
    makeDiag2Shape();
  }

  void makeEl1Shape(){
    bottomY = (y + GRID_SPACE);
    topY = (y - GRID_SPACE);
    rightX = (x + GRID_SPACE);
    leftX = (x - GRID_SPACE);
    beginShape();
    vertex(x,y);
    vertex(rightX,y);
    vertex(rightX,bottomY);
    vertex(leftX,bottomY);
    vertex(leftX,topY);
    vertex(x,topY);
    endShape();
  }

  void makeEl2Shape(){
    bottomY = (y + GRID_SPACE);
    topY = (y - GRID_SPACE);
    rightX = (x + GRID_SPACE);
    leftX = (x - GRID_SPACE);
    beginShape();
    vertex(x,y);
    vertex(x,topY);
    vertex(rightX,topY);
    vertex(rightX,bottomY);
    vertex(leftX,bottomY);
    vertex(leftX,y);
    endShape();
  }


  void makeEl3Shape(){
    bottomY = (y + GRID_SPACE);
    topY = (y - GRID_SPACE);
    rightX = (x + GRID_SPACE);
    leftX = (x - GRID_SPACE);
    beginShape();
    vertex(x,y);
    vertex(x,bottomY);
    vertex(rightX,bottomY);
    vertex(rightX,topY);
    vertex(leftX,topY);
    vertex(leftX,y);
    endShape();
  }

  void makeEl4Shape(){
    bottomY = (y + GRID_SPACE);
    topY = (y - GRID_SPACE);
    rightX = (x + GRID_SPACE);
    leftX = (x - GRID_SPACE);
    beginShape();
    vertex(x,y);
    vertex(rightX,y);
    vertex(rightX,topY);
    vertex(leftX,topY);
    vertex(leftX,bottomY);
    vertex(x,bottomY);
    endShape();
  }

  void makeVertShape(){
    bottomY = (y + GRID_SPACE);
    topY = (y - GRID_SPACE);
    rightX = (x + GRID_SPACE);
    beginShape();
    vertex(x,y);
    vertex(x,bottomY);
    vertex(rightX,bottomY);
    vertex(rightX,topY);
    vertex(x,topY);
    endShape();
  }

  void makeHorzShape(){
    bottomY = (y + GRID_SPACE);
    rightX = (x + GRID_SPACE);
    leftX = (x - GRID_SPACE);
    beginShape();
    vertex(x,y);
    vertex(rightX,y);
    vertex(rightX,bottomY);
    vertex(leftX,bottomY);
    vertex(leftX,y);
    endShape();
  }

  void makeTee1Shape(){
    bottomY = (y + GRID_SPACE);
    topY = (y - GRID_SPACE);
    rightX = (x + GRID_SPACE);
    leftX = (x - GRID_SPACE);
    beginShape();
    vertex(x,y);
    vertex(x,topY);
    vertex(rightX,topY);
    vertex(rightX,y);
    vertex((x+(GRID_SPACE*2)),y);
    vertex((x+(GRID_SPACE*2)),bottomY);
    vertex(leftX,bottomY);
    vertex(leftX,y);
    endShape();
  }

  void makeTee2Shape(){
    bottomY = (y + GRID_SPACE);
    topY = (y - GRID_SPACE);
    rightX = (x + GRID_SPACE);
    leftX = (x - GRID_SPACE);
    beginShape();
    vertex(x,y);
    vertex(x,bottomY);
    vertex(rightX,bottomY);
    vertex(rightX,y);
    vertex((x + (GRID_SPACE * 2)), y);
    vertex((x + (GRID_SPACE * 2)), topY);
    vertex(leftX,topY);
    vertex(leftX,y);
    endShape();
  }

  void makeDiag1Shape(){
    bottomY = (y + GRID_SPACE);
    topY = (y - GRID_SPACE);
    rightX = (x + GRID_SPACE);
    leftX = (x - GRID_SPACE);
    beginShape();
    vertex(x,y);
    vertex(rightX,bottomY);
    vertex(x,bottomY);
    vertex(leftX,y);
    endShape();
  }

  void makeDiag2Shape(){
    bottomY = (y + GRID_SPACE);
    topY = (y - GRID_SPACE);
    rightX = (x + GRID_SPACE);
    leftX = (x - GRID_SPACE);
    beginShape();
    vertex(x,y);
    vertex(rightX,topY);
    vertex(rightX,y);
    vertex(x,bottomY);
    endShape();
  }

  boolean mouseOverPipe(){
    if ((abs(pmouseX - x) <= (GRID_SPACE)) && (abs(pmouseY - y) <= (GRID_SPACE))){
      return true;
    } 
    else {
      return false;
    }
  }

  boolean ballInRange(Ball b){
    if((abs(x - b.x) < GRID_SPACE) && (abs(y - b.y) < GRID_SPACE)){
      return true;
    }
    else {
      return false;
    }
  }

  boolean ballInVertRange(Ball b){
    if((abs(b.x - x) < GRID_SPACE/2) && (abs(y - b.y) < GRID_SPACE)){
      return true;
    }
    else {
      return false;
    }
  }

  boolean ballInHorzRange(Ball b){
    if((abs(b.y - y) < GRID_SPACE/2) && (abs(x - b.x) < GRID_SPACE)){
      return true;
    }
    else {
      return false;
    }
  }

  boolean ballInTee1Range(Ball b){
    if(((abs(x - b.x) < GRID_SPACE) && (abs(y - b.y) < GRID_SPACE))){
      return true;
    }
    if((b.x > x) && ((b.x - x) < (GRID_SPACE * 2)) && (abs(y - b.y) < GRID_SPACE)){
      return true;
    }
    else {
      return false;
    }
  }

  boolean ballInTee2Range(Ball b){
    if(((abs(x - b.x) < GRID_SPACE) && (abs(y - b.y) < GRID_SPACE))){
      return true;
    }
    if((b.x > x) && ((b.x - x) < (GRID_SPACE * 2)) && (abs(y - b.y) < GRID_SPACE)){
      return true;
    }
    else {
      return false;
    }
  }

  boolean ballInDiag1Range(Ball b){
    if(((b.y - y) < GRID_SPACE) && ((b.y - y) > 0) && (abs(x - b.x) < GRID_SPACE)){
      return true;
    }
    else {
      return false;
    }
  }

  boolean ballInDiag2Range(Ball b){
    if(((b.x - x) < GRID_SPACE) && ((b.x - x) > 0) && (abs(y - b.y) < GRID_SPACE)){
      return true;
    }
    else {
      return false;
    }
  }

  boolean ballInPipe(Ball b){
    if((b.ballEnteredPipe == true) /*&& (b.ballExitedPipe == false)*/){
      return true;
    }
    else{
      return false;
    }
  }


  void didBallEnterPipe(Ball b){
    if((b.previousY <= topY) && (b.y >= topY) && (b.x > leftX) && (b.x < x)){
      b.ballEnteredPipe = true;
      b.ballExitedPipe = false;
    } 
    else if((b.previousX >= rightX) && (b.x <= rightX) && (b.y < bottomY) && (b.y > y)){
      b.ballEnteredPipe = true;
      b.ballExitedPipe = false;
    }
  }

  void didBallExitPipe(Ball b){
    if((b.previousX <= rightX) && (b.x >= rightX) && (b.y < bottomY) && (b.y > y)){
      b.ballExitedPipe = true;
      b.ballEnteredPipe = false;
    }
    else if ((b.previousY >= topY) && (b.y <= topY) && (b.x > leftX) && (b.x < x)){
      b.ballExitedPipe = true;
      b.ballEnteredPipe = false;
    }
  }

  void didBallEnterEl2Pipe(Ball b){
    if((b.previousY <= topY) && (b.y >= topY) && (b.x < rightX) && (b.x > x)){
      b.ballEnteredPipe = true;
      b.ballExitedPipe = false;
    } 
    else if((b.previousX <= leftX) && (b.x >= leftX) && (b.y < bottomY) && (b.y > y)){
      b.ballEnteredPipe = true;
      b.ballExitedPipe = false;
    }
  }

  void didBallExitEl2Pipe(Ball b){
    if((b.previousX >= leftX) && (b.x <= leftX) && (b.y < bottomY) && (b.y > y)){
      b.ballExitedPipe = true;
      b.ballEnteredPipe = false;
    }
    else if ((b.previousY >= topY) && (b.y <= topY) && (b.x < rightX) && (b.x > x)){
      b.ballExitedPipe = true;
      b.ballEnteredPipe = false;
    }
  }

  void didBallEnterEl3Pipe(Ball b){
    if((b.previousY >= bottomY) && (b.y <= bottomY) && (b.x < rightX) && (b.x > x)){
      b.ballEnteredPipe = true;
      b.ballExitedPipe = false;
    } 
    else if((b.previousX <= leftX) && (b.x >= leftX) && (b.y > topY) && (b.y < y)){
      b.ballEnteredPipe = true;
      b.ballExitedPipe = false;
    }
  }

  void didBallExitEl3Pipe(Ball b){
    if((b.previousX >= leftX) && (b.x <= leftX) && (b.y > topY) && (b.y < y)){
      b.ballExitedPipe = true;
      b.ballEnteredPipe = false;
    }
    else if ((b.previousY <= bottomY) && (b.y >= bottomY) && (b.x < rightX) && (b.x > x)){
      b.ballExitedPipe = true;
      b.ballEnteredPipe = false;
    }
  }

  void didBallEnterEl4Pipe(Ball b){
    if((b.previousY >= bottomY) && (b.y <= bottomY) && (b.x > leftX) && (b.x < x)){
      b.ballEnteredPipe = true;
      b.ballExitedPipe = false;
    } 
    else if((b.previousX >= rightX) && (b.x <= rightX) && (b.y > topY) && (b.y < y)){
      b.ballEnteredPipe = true;
      b.ballExitedPipe = false;
    }
  }

  void didBallExitEl4Pipe(Ball b){
    if((b.previousX <= rightX) && (b.x >= rightX) && (b.y > topY) && (b.y < y)){
      b.ballExitedPipe = true;
      b.ballEnteredPipe = false;
    }
    else if ((b.previousY <= bottomY) && (b.y >= bottomY) && (b.x > leftX) && (b.x < x)){
      b.ballExitedPipe = true;
      b.ballEnteredPipe = false;
    }
  }

  void didBallEnterVertPipe(Ball b){
    if((b.previousY >= bottomY) && (b.y <= bottomY) && (b.x < rightX) && (b.x > x)){
      b.ballEnteredPipe = true;
      b.ballExitedPipe = false;
    } 
    else if((b.previousY <= topY) && (b.y >= topY) && (b.x < rightX) && (b.x > x)){
      b.ballEnteredPipe = true;
      b.ballExitedPipe = false;
    }
  }

  void didBallExitVertPipe(Ball b){
    if((b.previousY <= bottomY) && (b.y >= bottomY) && (b.x < rightX) && (b.x > x)){
      b.ballExitedPipe = true;
      b.ballEnteredPipe = false;
    }
    else if((b.previousY >= topY) && (b.y <= topY) && (b.x < rightX) && (b.x > x)){
      b.ballExitedPipe = true;
      b.ballEnteredPipe = false;
    }
  }

  void didBallEnterHorzPipe(Ball b){
    if((b.previousX >= rightX) && (b.x <= rightX) && (b.y < bottomY) && (b.y > y)){
      b.ballEnteredPipe = true;
      b.ballExitedPipe = false;
    } 
    else if((b.previousX <= leftX) && (b.x >= leftX) && (b.y < bottomY) && (b.y > y)){
      b.ballEnteredPipe = true;
      b.ballExitedPipe = false;
    }
  }

  void didBallExitHorzPipe(Ball b){
    if((b.previousX <= rightX) && (b.x >= rightX) && (b.y < bottomY) && (b.y > y)){
      b.ballExitedPipe = true;
      b.ballEnteredPipe = false;
    }
    else if((b.previousX >= leftX) && (b.x <= leftX) && (b.y < bottomY) && (b.y > y)){
      b.ballExitedPipe = true;
      b.ballEnteredPipe = false;
    }
  }

  void didBallEnterTee1Pipe(Ball b){
    if((b.previousY <= topY) && (b.y >= topY) && (b.x < rightX) && (b.x > x)){
      b.ballEnteredPipe = true;
      b.ballExitedPipe = false;
    } 
    else if((b.previousX <= leftX) && (b.x >= leftX) && (b.y < bottomY) && (b.y > y)){
      b.ballEnteredPipe = true;
      b.ballExitedPipe = false;
    }
    else if((b.previousX >= (x + (GRID_SPACE * 2))) && (b.x <= (x + (GRID_SPACE * 2))) && (b.y < bottomY) && (b.y > y)){
      b.ballEnteredPipe = true;
      b.ballExitedPipe = false;
    }
  }

  void didBallExitTee1Pipe(Ball b){
    if((b.previousX >= leftX) && (b.x <= leftX) && (b.y < bottomY) && (b.y > y)){
      b.ballExitedPipe = true;
      b.ballEnteredPipe = false;
    }
    else if ((b.previousY >= topY) && (b.y <= topY) && (b.x < rightX) && (b.x > x)){
      b.ballExitedPipe = true;
      b.ballEnteredPipe = false;
    }
    else if ((b.previousX <= (x + (GRID_SPACE * 2))) && (b.x >= (x + (GRID_SPACE * 2))) && (b.y < bottomY) && (b.y > y)){
      b.ballExitedPipe = true;
      b.ballEnteredPipe = false;
    }
  }

  void didBallEnterTee2Pipe(Ball b){
    if((b.previousY >= bottomY) && (b.y <= bottomY) && (b.x < rightX) && (b.x > x)){
      b.ballEnteredPipe = true;
      b.ballExitedPipe = false;
    } 
    else if((b.previousX <= leftX) && (b.x >= leftX) && (b.y > topY) && (b.y < y)){
      b.ballEnteredPipe = true;
      b.ballExitedPipe = false;
    }
    else if((b.previousX >= (x + (GRID_SPACE * 2))) && (b.x <= (x + (GRID_SPACE * 2))) && (b.y > topY) && (b.y < y)){
      b.ballEnteredPipe = true;
      b.ballExitedPipe = false;
    }
  }

  void didBallExitTee2Pipe(Ball b){
    if((b.previousX >= leftX) && (b.x <= leftX) && (b.y > topY) && (b.y < y)){
      b.ballExitedPipe = true;
      b.ballEnteredPipe = false;
    }
    else if ((b.previousY <= bottomY) && (b.y >= bottomY) && (b.x < rightX) && (b.x > x)){
      b.ballExitedPipe = true;
      b.ballEnteredPipe = false;
    }
    else if ((b.previousX <= (x + (GRID_SPACE * 2))) && (b.x >= (x + (GRID_SPACE * 2))) && (b.y > topY) && (b.y < y)){
      b.ballExitedPipe = true;
      b.ballEnteredPipe = false;
    }
  }

  void didBallEnterDiag1Pipe(Ball b){
    if((b.previousY <= y) && (b.y >= y) && (b.x > leftX) && (b.x < x)){
      b.ballEnteredPipe = true;
      b.ballExitedPipe = false;
    } 
    else if((b.previousY >= bottomY) && (b.y <= bottomY) && (b.x < rightX) && (b.x > x)){
      b.ballEnteredPipe = true;
      b.ballExitedPipe = false;
    }
  }

  void didBallExitDiag1Pipe(Ball b){
    if((b.previousY <= bottomY) && (b.y >= bottomY) && (b.x < rightX) && (b.x > x)){
      b.ballExitedPipe = true;
      b.ballEnteredPipe = false;
    }
    else if((b.previousY >= y) && (b.y <= y) && (b.x < leftX) && (b.x > x)){
      b.ballExitedPipe = true;
      b.ballEnteredPipe = false;
    }
  }

  void didBallEnterDiag2Pipe(Ball b){
    if((b.previousX <= x) && (b.x >= x) && (b.y < bottomY) && (b.y > y)){
      b.ballEnteredPipe = true;
      b.ballExitedPipe = false;
    } 
    else if((b.previousX >= rightX) && (b.x <= rightX) && (b.y > topY) && (b.y < y)){
      b.ballEnteredPipe = true;
      b.ballExitedPipe = false;
    }
  }

  void didBallExitDiag2Pipe(Ball b){
    if((b.previousX <= rightX) && (b.x >= rightX) && (b.y < topY) && (b.y > y)){
      b.ballExitedPipe = true;
      b.ballEnteredPipe = false;
    }
    else if((b.previousX >= x) && (b.x <= x) && (b.y < bottomY) && (b.y > y)){
      b.ballExitedPipe = true;
      b.ballEnteredPipe = false;
    }
  }

  void removeBall(Ball b){
    b.direction = 0;
    b.x = -100;
    b.y = -100;  
  }

  void lightUp(){
    colorTimer = millis();
    r = 255;
    g = 255;
    blu = 255;
  }

  void lightUpRed(){
    colorTimer = millis();
    r = 255;
    g = 0;
    blu = 50;
  }

  void lightUpDrag(){
    r = 10;
    g = 255;
    blu = 224;
  }

  //=============================
  void changeDir(Ball b){
    if(type == PIPE_EL1){
      if(b.direction == L){
        b.goUp();
        b.x = (x - (GRID_SPACE/2));
      }
      if(b.direction == D){
        b.goRight();
        b.y = (y + (GRID_SPACE/2));
      }
      if(b.direction == DR){
        b.goRight();
        b.y = (y + (GRID_SPACE/2));
      }
      if(b.direction == DL && (b.x < x)){
        b.goRight();
        b.y = (y + (GRID_SPACE/2));
      }
      if(b.direction == DL && (b.x > x)){
        b.goUp();
        b.x = (x - (GRID_SPACE/2));
      }
      if(b.direction == UL){
        b.goUp();
        b.x = (x - (GRID_SPACE/2));
        b.y = (y + (GRID_SPACE/2));
      }
      if(b.direction == UR){
        b.goUp();
        b.x = (x - (GRID_SPACE/2));
        b.y = (y + (GRID_SPACE/2));
      }
    }
    else if(type == PIPE_EL2){
      if(b.direction == R){
        b.goUp();
        b.x = (x + (GRID_SPACE/2));
      }
      if(b.direction == D){
        b.goLeft();
        b.y = (y + (GRID_SPACE/2));
      }
      if(b.direction == DR && (b.y < y)){
        b.goLeft();
        b.y = (y + (GRID_SPACE/2));
      }
      if(b.direction == DR && (b.y > y)){
        b.goUp();
        b.x = (x + (GRID_SPACE/2));
      }
      if(b.direction == DL){
        b.goLeft();
        b.y = (y + (GRID_SPACE/2));
      }
      if(b.direction == UR){
        b.goUp();
        b.x = (x + (GRID_SPACE/2));
      }
    }
    else if(type == PIPE_EL3){
      if(b.direction == R){
        b.goDown();
        b.x = (x + (GRID_SPACE/2));
      }
      if(b.direction == U){
        b.goLeft();
        b.y = (y - (GRID_SPACE/2));
      }
      if(b.direction == DR){
        b.goDown();
        b.y = (y + (GRID_SPACE/2));
        b.x = (x + (GRID_SPACE/2));
      }
      if(b.direction == DL){
        b.goDown();
        b.y = (y + (GRID_SPACE/2));
      }
      if(b.direction == UL){
        b.goLeft();
        b.x = (x + (GRID_SPACE/2));
        b.y = (y - (GRID_SPACE/2));
      }
      if(b.direction == UR && (b.x > x)){
        b.goLeft();
        b.y = (y - (GRID_SPACE/2));
      }
      if(b.direction == UR && (b.x < x)){
        b.goDown();
        b.x = (x + (GRID_SPACE/2));
      }
    }
    else if(type == PIPE_EL4){
      if(b.direction == L){
        b.goDown();
        b.x = (x - (GRID_SPACE/2));
      }
      if(b.direction == U){
        b.goRight();
        b.y = (y - (GRID_SPACE/2));
      }
      if(b.direction == DL){
        b.goDown();
        b.x = (x - (GRID_SPACE/2));
      }
      if(b.direction == UL && (b.x < x)){
        b.goRight();
        b.y = (y - (GRID_SPACE/2));
      }
      if(b.direction == UL && (b.x > x)){
        b.goDown();
        b.x = (x - (GRID_SPACE/2));
      }
      if(b.direction == UR){
        b.goRight();
        b.y = (y - (GRID_SPACE/2));
      }
    }
    else if(type == PIPE_TEE1){
      b.goRight();
      b.y = (y + (GRID_SPACE/2));
      dirTimer = millis();
    }
    else if(type == PIPE_TEE2){
      b.goRight();
      b.y = (y - (GRID_SPACE/2));
      dirTimer = millis();
    }
    else if(type == PIPE_DIAG1){
      if(b.direction == D){
        b.goDownRight();
        b.x = x;
        b.y = (y + (GRID_SPACE/2));
      }
      if(b.direction == U){
        b.goUpLeft();
        b.x = x;
        b.y = (y + (GRID_SPACE/2));
      }
      if(b.direction == UR){
        b.goUpLeft();
        b.x = x;
        b.y = (y + (GRID_SPACE/2));
      }
    }
    else if(type == PIPE_DIAG2){
      if(b.direction == R){
        b.goUpRight();
        b.y = y;
        b.x = (x + (GRID_SPACE/2));
      }
      if(b.direction == L){
        b.goDownLeft();
        b.y = y;
        b.x = (x + (GRID_SPACE/2));
      }    
      if(b.direction == UL){
        b.goDownLeft();
        b.y = y;
        b.x = (x + (GRID_SPACE/2));
      }
      if(b.direction == DR){
        b.goUpRight();
        b.y = y;
        b.x = (x + (GRID_SPACE/2));
      }
    }
    else if(type == PIPE_VERT){
      if(b.direction == DR){
        b.goDown();
        b.x = (x + (GRID_SPACE/2));
      }
      if(b.direction == DL){
        b.goDown();
        b.x = (x + (GRID_SPACE/2));
      }
      if(b.direction == UL){
        b.goUp();
        b.x = (x + (GRID_SPACE/2));
      }
      if(b.direction == UR){
        b.goUp();
        b.x = (x + (GRID_SPACE/2));
      }
    }
    else if(type == PIPE_HORZ){
      if(b.direction == DR){
        b.goRight();
        b.y = (y + (GRID_SPACE/2));
      }
      if(b.direction == UR){
        b.goRight();
        b.y = (y + (GRID_SPACE/2));
      }
      if(b.direction == DL){
        b.goLeft();
        b.y = (y + (GRID_SPACE/2));
      }
      if(b.direction == UL){
        b.goLeft();
        b.y = (y + (GRID_SPACE/2));
      }
    }
  }

  void playSound(Ball b){
    if(millis() - lastSoundTriggerTime > 1000){
      b.playZound();
      lastSoundTriggerTime = millis();
    }
  }

  void makeNewBalls(){
    if ((millis() - newBallTimer) > 1000){
      makeNewBall = true;
      newBallTimer = millis();
    }
    else if((millis() - newBallTimer) < 1000){
      makeNewBall = false;
    }
  }

  void dragPipe(){
    if (pipeDrag == true){//if you are dragging on an el1 pipe 
      x = mouseX;//make the pipe follow the mouse
      y = mouseY;

      //this code snaps the pipe piece to a grid
      float j = x % GRID_SPACE;
      float n = y % GRID_SPACE;
      if(j >= (GRID_SPACE/2)){
        x = x + (GRID_SPACE-j);
      }
      else if (j < (GRID_SPACE/2)){
        x = x - (j);
      }

      if(n >= (GRID_SPACE/2)){
        y = y + (GRID_SPACE-n);
      }
      else if (n < (GRID_SPACE/2)){
        y = y - (n);
      }
    }
  }


}