class IGPSquare extends IGPFamily {
  int parts;

  IGPSquare(float x, float y, float d, int p){
    super(x, y, d);
    parts = p;
    setVectorsOnAlphaCircle();
    setConstructionCircleCenters();
    setVectorsOnOuterSquare();
  }

  void setConstructionCircleCenters(){
    constructionCircleCenters = new ArrayList <PVector> (4);
    constructionCircleCenters.add(alphaCircleVectors.get(0));
    constructionCircleCenters.add(alphaCircleVectors.get(3));
    constructionCircleCenters.add(alphaCircleVectors.get(6));
    constructionCircleCenters.add(alphaCircleVectors.get(9));
  }

  void setVectorsOnOuterSquare(){
    int amount = 12;
    constructionPartsTwelve = new ArrayList <PVector>(12);
    constructionPartsTwelve.add(constructionCircleCenters.get(0));
    constructionPartsTwelve.add(new PVector(constructionCircleCenters.get(1).x+radius/2+radius/amount, mid.y-radius));
    constructionPartsTwelve.add(new PVector(mid.x+radius, constructionCircleCenters.get(0).y-radius/2-radius/amount));
    constructionPartsTwelve.add(constructionCircleCenters.get(1));
    constructionPartsTwelve.add(new PVector(mid.x+radius, constructionCircleCenters.get(0).y+radius/2+radius/amount));
    constructionPartsTwelve.add(new PVector(constructionCircleCenters.get(3).x+radius/2+radius/amount, mid.y+radius));  
    constructionPartsTwelve.add(constructionCircleCenters.get(2));
    constructionPartsTwelve.add(new PVector(constructionCircleCenters.get(3).x-radius/2-radius/amount, mid.y+radius));
    constructionPartsTwelve.add(new PVector(mid.x-radius, constructionCircleCenters.get(2).y+radius/2+radius/amount));
    constructionPartsTwelve.add(constructionCircleCenters.get(3));
    constructionPartsTwelve.add(new PVector(mid.x-radius, constructionCircleCenters.get(2).y-radius/2-radius/amount));
    constructionPartsTwelve.add(new PVector(constructionCircleCenters.get(1).x-radius/2-radius/amount, mid.y-radius));
    constructionPartsSixteen = new ArrayList <PVector>(16);
    constructionPartsSixteen.add(constructionCircleCenters.get(0));
    constructionPartsSixteen.add(new PVector(constructionCircleCenters.get(1).x+radius/2-radius/amount, mid.y-radius));
    constructionPartsSixteen.add(new PVector(constructionCircleCenters.get(1).x-radius, constructionCircleCenters.get(2).y-radius));
    constructionPartsSixteen.add(new PVector(mid.x+radius, constructionCircleCenters.get(0).y-radius/2+radius/amount));
    constructionPartsSixteen.add(constructionCircleCenters.get(1));
    constructionPartsSixteen.add(new PVector(mid.x+radius, constructionCircleCenters.get(0).y+radius/2-radius/amount));
    constructionPartsSixteen.add(new PVector(constructionCircleCenters.get(1).x+radius, constructionCircleCenters.get(0).y-radius));
    constructionPartsSixteen.add(new PVector(constructionCircleCenters.get(3).x+radius/2-radius/amount, mid.y+radius)); 
    constructionPartsSixteen.add(constructionCircleCenters.get(2));
    constructionPartsSixteen.add(new PVector(constructionCircleCenters.get(3).x-radius/2+radius/amount, mid.y+radius));
    constructionPartsSixteen.add(new PVector(constructionCircleCenters.get(3).x+radius, constructionCircleCenters.get(0).y+radius));
    constructionPartsSixteen.add(new PVector(mid.x-radius, constructionCircleCenters.get(2).y+radius/2-radius/amount));
    constructionPartsSixteen.add(constructionCircleCenters.get(3));
    constructionPartsSixteen.add(new PVector(mid.x-radius, constructionCircleCenters.get(2).y-radius/2+radius/amount));
    constructionPartsSixteen.add(new PVector(constructionCircleCenters.get(3).x-radius, constructionCircleCenters.get(2).y+radius));
    constructionPartsSixteen.add(new PVector(constructionCircleCenters.get(1).x-radius/2+radius/amount, mid.y-radius)); 
  }

  void createDividingLines(){
      stroke(0.0, 0.66, 0.0, 0.4);
    if(parts == 12){
      createLine(constructionPartsTwelve.get(0), constructionPartsTwelve.get(6));
      createLine(constructionPartsTwelve.get(1), constructionPartsTwelve.get(7));
      createLine(constructionPartsTwelve.get(2), constructionPartsTwelve.get(8));
      createLine(constructionPartsTwelve.get(3), constructionPartsTwelve.get(9));
      createLine(constructionPartsTwelve.get(4), constructionPartsTwelve.get(10));
      createLine(constructionPartsTwelve.get(5), constructionPartsTwelve.get(11));
    }else if (parts == 16){
      createLine(constructionPartsSixteen.get(0), constructionPartsSixteen.get(8));
      createLine(constructionPartsSixteen.get(1), constructionPartsSixteen.get(9));
      createLine(constructionPartsSixteen.get(2), constructionPartsSixteen.get(10));
      createLine(constructionPartsSixteen.get(3), constructionPartsSixteen.get(11));
      createLine(constructionPartsSixteen.get(4), constructionPartsSixteen.get(12));
      createLine(constructionPartsSixteen.get(5), constructionPartsSixteen.get(13));
      createLine(constructionPartsSixteen.get(6), constructionPartsSixteen.get(14));
      createLine(constructionPartsSixteen.get(7), constructionPartsSixteen.get(15));
    }
  }

  void createDividingConstructionLines(){
    if(parts == 12){
      createLine(constructionPartsTwelve.get(0), constructionPartsTwelve.get(6));
      createLine(constructionPartsTwelve.get(1), constructionPartsTwelve.get(7));
      createLine(constructionPartsTwelve.get(2), constructionPartsTwelve.get(8));
      createLine(constructionPartsTwelve.get(3), constructionPartsTwelve.get(9));
      createLine(constructionPartsTwelve.get(4), constructionPartsTwelve.get(10));
      createLine(constructionPartsTwelve.get(5), constructionPartsTwelve.get(11));
    }else if (parts == 16){
      createLine(constructionPartsSixteen.get(0), constructionPartsSixteen.get(8));
      createLine(constructionPartsSixteen.get(1), constructionPartsSixteen.get(9));
      createLine(constructionPartsSixteen.get(2), constructionPartsSixteen.get(10));
      createLine(constructionPartsSixteen.get(3), constructionPartsSixteen.get(11));
      createLine(constructionPartsSixteen.get(4), constructionPartsSixteen.get(12));
      createLine(constructionPartsSixteen.get(5), constructionPartsSixteen.get(13));
      createLine(constructionPartsSixteen.get(6), constructionPartsSixteen.get(14));
      createLine(constructionPartsSixteen.get(7), constructionPartsSixteen.get(15));
    }
  }

  void display() {
    super.display();
    createOuterSquare();
    createDividingLines();
  }

  void displayConstructionLines(){
    super.displayConstructionLines();
    createDiagonalConstructionLinesOnOuterSquare();
    if (parts == 16){
      createInnerSquare();
      createInnerSquareTilted(45);
    }
    createDividingConstructionLines();
  }
}